diff options
Diffstat (limited to '')
26 files changed, 7179 insertions, 0 deletions
diff --git a/src/VBox/Runtime/r0drv/solaris/Makefile.kup b/src/VBox/Runtime/r0drv/solaris/Makefile.kup new file mode 100644 index 00000000..e69de29b --- /dev/null +++ b/src/VBox/Runtime/r0drv/solaris/Makefile.kup diff --git a/src/VBox/Runtime/r0drv/solaris/RTLogWriteDebugger-r0drv-solaris.c b/src/VBox/Runtime/r0drv/solaris/RTLogWriteDebugger-r0drv-solaris.c new file mode 100644 index 00000000..1ac8ed3d --- /dev/null +++ b/src/VBox/Runtime/r0drv/solaris/RTLogWriteDebugger-r0drv-solaris.c @@ -0,0 +1,76 @@ +/* $Id: RTLogWriteDebugger-r0drv-solaris.c $ */ +/** @file + * IPRT - Log To Debugger, Ring-0 Driver, Solaris. + */ + +/* + * Copyright (C) 2006-2023 Oracle and/or its affiliates. + * + * This file is part of VirtualBox base platform packages, as + * available from https://www.virtualbox.org. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation, in version 3 of the + * License. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, see <https://www.gnu.org/licenses>. + * + * The contents of this file may alternatively be used under the terms + * of the Common Development and Distribution License Version 1.0 + * (CDDL), a copy of it is provided in the "COPYING.CDDL" file included + * in the VirtualBox distribution, in which case the provisions of the + * CDDL are applicable instead of those of the GPL. + * + * You may elect to license modified versions of this file under the + * terms and conditions of either the GPL or the CDDL or both. + * + * SPDX-License-Identifier: GPL-3.0-only OR CDDL-1.0 + */ + + +/********************************************************************************************************************************* +* Header Files * +*********************************************************************************************************************************/ +#include "the-solaris-kernel.h" +#include "internal/iprt.h" +#include <iprt/log.h> + +#include <iprt/asm.h> +#if defined(RT_ARCH_AMD64) || defined(RT_ARCH_X86) +# include <iprt/asm-amd64-x86.h> +#endif +#include <iprt/assert.h> +#include <iprt/thread.h> + + + +RTDECL(void) RTLogWriteDebugger(const char *pch, size_t cb) +{ + if (pch[cb] != '\0') + AssertBreakpoint(); + + /* cmn_err() acquires adaptive mutexes. Not preemption safe, see @bugref{6657}. */ + if (!RTThreadPreemptIsEnabled(NIL_RTTHREAD)) + return; + + if ( !g_frtSolSplSetsEIF +#if defined(RT_ARCH_AMD64) || defined(RT_ARCH_X86) + || ASMIntAreEnabled() +#else +/* PORTME: Check if interrupts are enabled, if applicable. */ +#endif + ) + { + cmn_err(CE_CONT, pch); + } + + return; +} + diff --git a/src/VBox/Runtime/r0drv/solaris/RTMpPokeCpu-r0drv-solaris.c b/src/VBox/Runtime/r0drv/solaris/RTMpPokeCpu-r0drv-solaris.c new file mode 100644 index 00000000..713c9c63 --- /dev/null +++ b/src/VBox/Runtime/r0drv/solaris/RTMpPokeCpu-r0drv-solaris.c @@ -0,0 +1,60 @@ +/* $Id: RTMpPokeCpu-r0drv-solaris.c $ */ +/** @file + * IPRT - RTMpPokeCpu, Solaris Implementation. + */ + +/* + * Copyright (C) 2009-2023 Oracle and/or its affiliates. + * + * This file is part of VirtualBox base platform packages, as + * available from https://www.virtualbox.org. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation, in version 3 of the + * License. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, see <https://www.gnu.org/licenses>. + * + * The contents of this file may alternatively be used under the terms + * of the Common Development and Distribution License Version 1.0 + * (CDDL), a copy of it is provided in the "COPYING.CDDL" file included + * in the VirtualBox distribution, in which case the provisions of the + * CDDL are applicable instead of those of the GPL. + * + * You may elect to license modified versions of this file under the + * terms and conditions of either the GPL or the CDDL or both. + * + * SPDX-License-Identifier: GPL-3.0-only OR CDDL-1.0 + */ + + +/********************************************************************************************************************************* +* Header Files * +*********************************************************************************************************************************/ +#include "the-solaris-kernel.h" +#include "internal/iprt.h" +#include <iprt/mp.h> + +#if defined(RT_ARCH_AMD64) || defined(RT_ARCH_X86) +# include <iprt/asm-amd64-x86.h> +#endif +#include <iprt/assert.h> +#include <iprt/errcore.h> + + + +RTDECL(int) RTMpPokeCpu(RTCPUID idCpu) +{ + RT_ASSERT_INTS_ON(); + if (idCpu < ncpus) + poke_cpu(idCpu); + return VINF_SUCCESS; +} + diff --git a/src/VBox/Runtime/r0drv/solaris/alloc-r0drv-solaris.c b/src/VBox/Runtime/r0drv/solaris/alloc-r0drv-solaris.c new file mode 100644 index 00000000..9c0e9765 --- /dev/null +++ b/src/VBox/Runtime/r0drv/solaris/alloc-r0drv-solaris.c @@ -0,0 +1,198 @@ +/* $Id: alloc-r0drv-solaris.c $ */ +/** @file + * IPRT - Memory Allocation, Ring-0 Driver, Solaris. + */ + +/* + * Copyright (C) 2006-2023 Oracle and/or its affiliates. + * + * This file is part of VirtualBox base platform packages, as + * available from https://www.virtualbox.org. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation, in version 3 of the + * License. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, see <https://www.gnu.org/licenses>. + * + * The contents of this file may alternatively be used under the terms + * of the Common Development and Distribution License Version 1.0 + * (CDDL), a copy of it is provided in the "COPYING.CDDL" file included + * in the VirtualBox distribution, in which case the provisions of the + * CDDL are applicable instead of those of the GPL. + * + * You may elect to license modified versions of this file under the + * terms and conditions of either the GPL or the CDDL or both. + * + * SPDX-License-Identifier: GPL-3.0-only OR CDDL-1.0 + */ + + +/********************************************************************************************************************************* +* Header Files * +*********************************************************************************************************************************/ +#include "the-solaris-kernel.h" +#include "internal/iprt.h" +#include <iprt/mem.h> + +#include <iprt/assert.h> +#include <iprt/errcore.h> +#include <iprt/log.h> +#include <iprt/param.h> +#include <iprt/thread.h> +#include "r0drv/alloc-r0drv.h" + + +/********************************************************************************************************************************* +* Structures and Typedefs * +*********************************************************************************************************************************/ +static ddi_dma_attr_t s_rtR0SolDmaAttr = +{ + DMA_ATTR_V0, /* Version Number */ + (uint64_t)0, /* Lower limit */ + (uint64_t)0, /* High limit */ + (uint64_t)0xffffffff, /* Counter limit */ + (uint64_t)PAGESIZE, /* Alignment */ + (uint64_t)PAGESIZE, /* Burst size */ + (uint64_t)PAGESIZE, /* Effective DMA size */ + (uint64_t)0xffffffff, /* Max DMA xfer size */ + (uint64_t)0xffffffff, /* Segment boundary */ + 1, /* Scatter-gather list length (1 for contiguous) */ + 1, /* Device granularity */ + 0 /* Bus-specific flags */ +}; + +extern void *contig_alloc(size_t cb, ddi_dma_attr_t *pDmaAttr, size_t uAlign, int fCanSleep); + + +/** + * OS specific allocation function. + */ +DECLHIDDEN(int) rtR0MemAllocEx(size_t cb, uint32_t fFlags, PRTMEMHDR *ppHdr) +{ + size_t cbAllocated = cb; + PRTMEMHDR pHdr; + unsigned fKmFlags = fFlags & RTMEMHDR_FLAG_ANY_CTX_ALLOC ? KM_NOSLEEP : KM_SLEEP; + if (fFlags & RTMEMHDR_FLAG_ZEROED) + pHdr = (PRTMEMHDR)kmem_zalloc(cb + sizeof(*pHdr), fKmFlags); + else + pHdr = (PRTMEMHDR)kmem_alloc(cb + sizeof(*pHdr), fKmFlags); + if (RT_UNLIKELY(!pHdr)) + { + LogRel(("rtMemAllocEx(%u, %#x) failed\n", (unsigned)cb + sizeof(*pHdr), fFlags)); + return VERR_NO_MEMORY; + } + + pHdr->u32Magic = RTMEMHDR_MAGIC; + pHdr->fFlags = fFlags; + pHdr->cb = cbAllocated; + pHdr->cbReq = cb; + + *ppHdr = pHdr; + return VINF_SUCCESS; +} + + +/** + * OS specific free function. + */ +DECLHIDDEN(void) rtR0MemFree(PRTMEMHDR pHdr) +{ + pHdr->u32Magic += 1; + kmem_free(pHdr, pHdr->cb + sizeof(*pHdr)); +} + + +/** + * Allocates physical memory which satisfy the given constraints. + * + * @param uPhysHi The upper physical address limit (inclusive). + * @param puPhys Where to store the physical address of the allocated + * memory. Optional, can be NULL. + * @param cb Size of allocation. + * @param uAlignment Alignment. + * @param fContig Whether the memory must be physically contiguous or + * not. + * @returns Virtual address of allocated memory block or NULL if allocation + * failed. + */ +DECLHIDDEN(void *) rtR0SolMemAlloc(uint64_t uPhysHi, uint64_t *puPhys, size_t cb, uint64_t uAlignment, bool fContig) +{ + if ((cb & PAGEOFFSET) != 0) + return NULL; + + size_t cPages = (cb + PAGESIZE - 1) >> PAGESHIFT; + if (!cPages) + return NULL; + + ddi_dma_attr_t DmaAttr = s_rtR0SolDmaAttr; + DmaAttr.dma_attr_addr_hi = uPhysHi; + DmaAttr.dma_attr_align = uAlignment; + if (!fContig) + DmaAttr.dma_attr_sgllen = cPages > INT_MAX ? INT_MAX - 1 : cPages; + else + AssertRelease(DmaAttr.dma_attr_sgllen == 1); + + void *pvMem = contig_alloc(cb, &DmaAttr, PAGESIZE, 1 /* can sleep */); + if (!pvMem) + { + LogRel(("rtR0SolMemAlloc failed. cb=%u Align=%u fContig=%d\n", (unsigned)cb, (unsigned)uAlignment, fContig)); + return NULL; + } + + pfn_t PageFrameNum = hat_getpfnum(kas.a_hat, (caddr_t)pvMem); + AssertRelease(PageFrameNum != PFN_INVALID); + if (puPhys) + *puPhys = (uint64_t)PageFrameNum << PAGESHIFT; + + return pvMem; +} + + +/** + * Frees memory allocated using rtR0SolMemAlloc(). + * + * @param pv The memory to free. + * @param cb Size of the memory block + */ +DECLHIDDEN(void) rtR0SolMemFree(void *pv, size_t cb) +{ + if (RT_LIKELY(pv)) + g_pfnrtR0Sol_contig_free(pv, cb); +} + + +RTR0DECL(void *) RTMemContAlloc(PRTCCPHYS pPhys, size_t cb) +{ + AssertPtrReturn(pPhys, NULL); + AssertReturn(cb > 0, NULL); + RT_ASSERT_PREEMPTIBLE(); + + /* Allocate physically contiguous (< 4GB) page-aligned memory. */ + uint64_t uPhys; + void *pvMem = rtR0SolMemAlloc((uint64_t)_4G - 1, &uPhys, cb, PAGESIZE, true /* fContig */); + if (RT_UNLIKELY(!pvMem)) + { + LogRel(("RTMemContAlloc failed to allocate %u bytes\n", cb)); + return NULL; + } + + Assert(uPhys < _4G); + *pPhys = uPhys; + return pvMem; +} + + +RTR0DECL(void) RTMemContFree(void *pv, size_t cb) +{ + RT_ASSERT_PREEMPTIBLE(); + rtR0SolMemFree(pv, cb); +} + diff --git a/src/VBox/Runtime/r0drv/solaris/assert-r0drv-solaris.c b/src/VBox/Runtime/r0drv/solaris/assert-r0drv-solaris.c new file mode 100644 index 00000000..a1b9dc56 --- /dev/null +++ b/src/VBox/Runtime/r0drv/solaris/assert-r0drv-solaris.c @@ -0,0 +1,87 @@ +/* $Id: assert-r0drv-solaris.c $ */ +/** @file + * IPRT - Assertion Workers, Ring-0 Drivers, Solaris. + */ + +/* + * Copyright (C) 2006-2023 Oracle and/or its affiliates. + * + * This file is part of VirtualBox base platform packages, as + * available from https://www.virtualbox.org. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation, in version 3 of the + * License. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, see <https://www.gnu.org/licenses>. + * + * The contents of this file may alternatively be used under the terms + * of the Common Development and Distribution License Version 1.0 + * (CDDL), a copy of it is provided in the "COPYING.CDDL" file included + * in the VirtualBox distribution, in which case the provisions of the + * CDDL are applicable instead of those of the GPL. + * + * You may elect to license modified versions of this file under the + * terms and conditions of either the GPL or the CDDL or both. + * + * SPDX-License-Identifier: GPL-3.0-only OR CDDL-1.0 + */ + + +/********************************************************************************************************************************* +* Header Files * +*********************************************************************************************************************************/ +#include "the-solaris-kernel.h" +#include "internal/iprt.h" +#include <iprt/assert.h> + +#include <iprt/asm.h> +#include <iprt/log.h> +#include <iprt/stdarg.h> +#include <iprt/string.h> + +#include "internal/assert.h" + + +DECLHIDDEN(void) rtR0AssertNativeMsg1(const char *pszExpr, unsigned uLine, const char *pszFile, const char *pszFunction) +{ + uprintf("\r\n!!Assertion Failed!!\r\n" + "Expression: %s\r\n" + "Location : %s(%d) %s\r\n", + pszExpr, pszFile, uLine, pszFunction); +} + + +DECLHIDDEN(void) rtR0AssertNativeMsg2V(bool fInitial, const char *pszFormat, va_list va) +{ + char szMsg[256]; + + RTStrPrintfV(szMsg, sizeof(szMsg) - 1, pszFormat, va); + szMsg[sizeof(szMsg) - 1] = '\0'; + uprintf("%s", szMsg); + + NOREF(fInitial); +} + + +RTR0DECL(void) RTR0AssertPanicSystem(void) +{ + const char *psz = &g_szRTAssertMsg2[0]; + const char *pszEnd = &g_szRTAssertMsg2[sizeof(g_szRTAssertMsg2)]; + while (psz < pszEnd && (*psz == ' ' || *psz == '\t' || *psz == '\n' || *psz == '\r')) + psz++; + + if (psz < pszEnd && *psz) + assfail(psz, g_pszRTAssertFile, g_u32RTAssertLine); + else + assfail(g_szRTAssertMsg1, g_pszRTAssertFile, g_u32RTAssertLine); + g_szRTAssertMsg2[0] = '\0'; +} + diff --git a/src/VBox/Runtime/r0drv/solaris/dbgkrnlinfo-r0drv-solaris.c b/src/VBox/Runtime/r0drv/solaris/dbgkrnlinfo-r0drv-solaris.c new file mode 100644 index 00000000..bc617428 --- /dev/null +++ b/src/VBox/Runtime/r0drv/solaris/dbgkrnlinfo-r0drv-solaris.c @@ -0,0 +1,349 @@ +/* $Id: dbgkrnlinfo-r0drv-solaris.c $ */ +/** @file + * IPRT - Kernel debug information, Ring-0 Driver, Solaris Code. + */ + +/* + * Copyright (C) 2012-2023 Oracle and/or its affiliates. + * + * This file is part of VirtualBox base platform packages, as + * available from https://www.virtualbox.org. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation, in version 3 of the + * License. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, see <https://www.gnu.org/licenses>. + * + * The contents of this file may alternatively be used under the terms + * of the Common Development and Distribution License Version 1.0 + * (CDDL), a copy of it is provided in the "COPYING.CDDL" file included + * in the VirtualBox distribution, in which case the provisions of the + * CDDL are applicable instead of those of the GPL. + * + * You may elect to license modified versions of this file under the + * terms and conditions of either the GPL or the CDDL or both. + * + * SPDX-License-Identifier: GPL-3.0-only OR CDDL-1.0 + */ + + +/********************************************************************************************************************************* +* Header Files * +*********************************************************************************************************************************/ +#include "the-solaris-kernel.h" +#include "internal/iprt.h" + +#include <iprt/dbg.h> +#include <iprt/asm.h> +#include <iprt/assert.h> +#include <iprt/err.h> +#include <iprt/log.h> +#include <iprt/mem.h> +#include <iprt/string.h> +#include <iprt/thread.h> + +#include "internal/magics.h" + + +/********************************************************************************************************************************* +* Structures and Typedefs * +*********************************************************************************************************************************/ +/** + * Solaris kernel debug info instance data. + */ +typedef struct RTDBGKRNLINFOINT +{ + /** Magic value (RTDBGKRNLINFO_MAGIC). */ + uint32_t volatile u32Magic; + /** The number of threads referencing this object. */ + uint32_t volatile cRefs; + /** Pointer to the genunix CTF handle. */ + ctf_file_t *pGenUnixCTF; + /** Pointer to the genunix module handle. */ + modctl_t *pGenUnixMod; +} RTDBGKRNLINFOINT; +/** Pointer to the solaris kernel debug info instance data. */ +typedef struct RTDBGKRNLINFOINT *PRTDBGKRNLINFOINT; + + +/** + * Retains a kernel module and opens the CTF data associated with it. + * + * @param pszModule The name of the module to open. + * @param ppMod Where to store the module handle. + * @param ppCTF Where to store the module's CTF handle. + * + * @return IPRT status code. + */ +static int rtR0DbgKrnlInfoModRetain(char *pszModule, modctl_t **ppMod, ctf_file_t **ppCTF) +{ + AssertPtrReturn(pszModule, VERR_INVALID_PARAMETER); + AssertPtrReturn(ppMod, VERR_INVALID_PARAMETER); + AssertPtrReturn(ppCTF, VERR_INVALID_PARAMETER); + + int rc = VINF_SUCCESS; + modid_t ModId = mod_name_to_modid(pszModule); + if (ModId != -1) + { + *ppMod = mod_hold_by_id(ModId); + if (*ppMod) + { + /* + * Hold mod_lock as ctf_modopen may update the module with uncompressed CTF data. + */ + int err; + mutex_enter(&mod_lock); + *ppCTF = ctf_modopen(((modctl_t *)*ppMod)->mod_mp, &err); + mutex_exit(&mod_lock); + mod_release_mod(*ppMod); + + if (*ppCTF) + return VINF_SUCCESS; + else + { + LogRel(("rtR0DbgKrnlInfoModRetain: ctf_modopen failed for '%s' err=%d\n", pszModule, err)); + rc = VERR_INTERNAL_ERROR_3; + } + } + else + { + LogRel(("rtR0DbgKrnlInfoModRetain: mod_hold_by_id failed for '%s'\n", pszModule)); + rc = VERR_INTERNAL_ERROR_2; + } + } + else + { + LogRel(("rtR0DbgKrnlInfoModRetain: mod_name_to_modid failed for '%s'\n", pszModule)); + rc = VERR_INTERNAL_ERROR; + } + + return rc; +} + + +/** + * Releases the kernel module and closes its CTF data. + * + * @param pMod Pointer to the module handle. + * @param pCTF Pointer to the module's CTF handle. + */ +static void rtR0DbgKrnlInfoModRelease(modctl_t *pMod, ctf_file_t *pCTF) +{ + AssertPtrReturnVoid(pMod); + AssertPtrReturnVoid(pCTF); + + ctf_close(pCTF); +} + + +/** + * Helper for opening the specified kernel module. + * + * @param pszModule The name of the module. + * @param ppMod Where to store the module handle. + * @param ppCtf Where to store the module's CTF handle. + * + * @returns Pointer to the CTF structure for the module. + */ +static int rtR0DbgKrnlInfoModRetainEx(const char *pszModule, modctl_t **ppMod, ctf_file_t **ppCtf) +{ + char *pszMod = RTStrDup(pszModule); + if (RT_LIKELY(pszMod)) + { + int rc = rtR0DbgKrnlInfoModRetain(pszMod, ppMod, ppCtf); + RTStrFree(pszMod); + if (RT_SUCCESS(rc)) + { + AssertPtrReturn(*ppMod, VERR_INTERNAL_ERROR_2); + AssertPtrReturn(*ppCtf, VERR_INTERNAL_ERROR_3); + } + return rc; + } + return VERR_NO_MEMORY; +} + + +RTR0DECL(int) RTR0DbgKrnlInfoOpen(PRTDBGKRNLINFO phKrnlInfo, uint32_t fFlags) +{ + AssertReturn(fFlags == 0, VERR_INVALID_PARAMETER); + AssertPtrReturn(phKrnlInfo, VERR_INVALID_POINTER); + /* This can be called as part of IPRT init, in which case we have no thread preempt information yet. */ + if (g_frtSolInitDone) + RT_ASSERT_PREEMPTIBLE(); + + *phKrnlInfo = NIL_RTDBGKRNLINFO; + PRTDBGKRNLINFOINT pThis = (PRTDBGKRNLINFOINT)RTMemAllocZ(sizeof(*pThis)); + if (!pThis) + return VERR_NO_MEMORY; + + char szGenUnixModName[] = "genunix"; + int rc = rtR0DbgKrnlInfoModRetain(szGenUnixModName, &pThis->pGenUnixMod, &pThis->pGenUnixCTF); + if (RT_SUCCESS(rc)) + { + pThis->u32Magic = RTDBGKRNLINFO_MAGIC; + pThis->cRefs = 1; + + *phKrnlInfo = pThis; + return VINF_SUCCESS; + } + + LogRel(("RTR0DbgKrnlInfoOpen: rtR0DbgKrnlInfoModRetain failed rc=%d.\n", rc)); + RTMemFree(pThis); + return rc; +} + + +RTR0DECL(uint32_t) RTR0DbgKrnlInfoRetain(RTDBGKRNLINFO hKrnlInfo) +{ + PRTDBGKRNLINFOINT pThis = hKrnlInfo; + AssertPtrReturn(pThis, UINT32_MAX); + AssertMsgReturn(pThis->u32Magic == RTDBGKRNLINFO_MAGIC, ("%p: u32Magic=%RX32\n", pThis, pThis->u32Magic), UINT32_MAX); + + uint32_t cRefs = ASMAtomicIncU32(&pThis->cRefs); + Assert(cRefs && cRefs < 100000); + return cRefs; +} + + +RTR0DECL(uint32_t) RTR0DbgKrnlInfoRelease(RTDBGKRNLINFO hKrnlInfo) +{ + PRTDBGKRNLINFOINT pThis = hKrnlInfo; + if (pThis == NIL_RTDBGKRNLINFO) + return 0; + AssertPtrReturn(pThis, UINT32_MAX); + AssertMsgReturn(pThis->u32Magic == RTDBGKRNLINFO_MAGIC, ("%p: u32Magic=%RX32\n", pThis, pThis->u32Magic), UINT32_MAX); + if (g_frtSolInitDone) + RT_ASSERT_PREEMPTIBLE(); + + uint32_t cRefs = ASMAtomicDecU32(&pThis->cRefs); + if (cRefs == 0) + { + pThis->u32Magic = ~RTDBGKRNLINFO_MAGIC; + rtR0DbgKrnlInfoModRelease(pThis->pGenUnixMod, pThis->pGenUnixCTF); + RTMemFree(pThis); + } + return cRefs; +} + + +RTR0DECL(int) RTR0DbgKrnlInfoQueryMember(RTDBGKRNLINFO hKrnlInfo, const char *pszModule, const char *pszStructure, + const char *pszMember, size_t *poffMember) +{ + PRTDBGKRNLINFOINT pThis = hKrnlInfo; + AssertPtrReturn(pThis, VERR_INVALID_HANDLE); + AssertMsgReturn(pThis->u32Magic == RTDBGKRNLINFO_MAGIC, ("%p: u32Magic=%RX32\n", pThis, pThis->u32Magic), VERR_INVALID_HANDLE); + AssertPtrReturn(pszMember, VERR_INVALID_PARAMETER); + AssertPtrReturn(pszStructure, VERR_INVALID_PARAMETER); + AssertPtrReturn(poffMember, VERR_INVALID_PARAMETER); + if (g_frtSolInitDone) + RT_ASSERT_PREEMPTIBLE(); + + ctf_file_t *pCtf = NULL; + modctl_t *pMod = NULL; + if (!pszModule) + { + pCtf = pThis->pGenUnixCTF; + pMod = pThis->pGenUnixMod; + } + else + { + int rc2 = rtR0DbgKrnlInfoModRetainEx(pszModule, &pMod, &pCtf); + if (RT_FAILURE(rc2)) + return rc2; + Assert(pMod); + Assert(pCtf); + } + + int rc = VERR_NOT_FOUND; + ctf_id_t TypeIdent = ctf_lookup_by_name(pCtf, pszStructure); + if (TypeIdent != CTF_ERR) + { + ctf_membinfo_t MemberInfo; + RT_ZERO(MemberInfo); + if (ctf_member_info(pCtf, TypeIdent, pszMember, &MemberInfo) != CTF_ERR) + { + *poffMember = (MemberInfo.ctm_offset >> 3); + rc = VINF_SUCCESS; + } + } + + if (pszModule) + rtR0DbgKrnlInfoModRelease(pMod, pCtf); + return rc; +} + + +RTR0DECL(int) RTR0DbgKrnlInfoQuerySymbol(RTDBGKRNLINFO hKrnlInfo, const char *pszModule, + const char *pszSymbol, void **ppvSymbol) +{ + PRTDBGKRNLINFOINT pThis = hKrnlInfo; + AssertPtrReturn(pThis, VERR_INVALID_HANDLE); + AssertMsgReturn(pThis->u32Magic == RTDBGKRNLINFO_MAGIC, ("%p: u32Magic=%RX32\n", pThis, pThis->u32Magic), VERR_INVALID_HANDLE); + AssertPtrReturn(pszSymbol, VERR_INVALID_PARAMETER); + AssertPtrNullReturn(ppvSymbol, VERR_INVALID_PARAMETER); + AssertReturn(!pszModule, VERR_MODULE_NOT_FOUND); + if (g_frtSolInitDone) + RT_ASSERT_PREEMPTIBLE(); + + uintptr_t uValue = kobj_getsymvalue((char *)pszSymbol, 1 /* only kernel */); + if (ppvSymbol) + *ppvSymbol = (void *)uValue; + if (uValue) + return VINF_SUCCESS; + return VERR_SYMBOL_NOT_FOUND; +} + + +RTR0DECL(int) RTR0DbgKrnlInfoQuerySize(RTDBGKRNLINFO hKrnlInfo, const char *pszModule, const char *pszType, size_t *pcbType) +{ + PRTDBGKRNLINFOINT pThis = hKrnlInfo; + AssertPtrReturn(pThis, VERR_INVALID_HANDLE); + AssertMsgReturn(pThis->u32Magic == RTDBGKRNLINFO_MAGIC, ("%p: u32Magic=%RX32\n", pThis, pThis->u32Magic), VERR_INVALID_HANDLE); + AssertPtrReturn(pszType, VERR_INVALID_PARAMETER); + AssertPtrReturn(pcbType, VERR_INVALID_PARAMETER); + if (g_frtSolInitDone) + RT_ASSERT_PREEMPTIBLE(); + + modctl_t *pMod = NULL; + ctf_file_t *pCtf = NULL; + if (!pszModule) + { + pCtf = pThis->pGenUnixCTF; + pMod = pThis->pGenUnixMod; + } + else + { + int rc2 = rtR0DbgKrnlInfoModRetainEx(pszModule, &pMod, &pCtf); + if (RT_FAILURE(rc2)) + return rc2; + Assert(pMod); + Assert(pCtf); + } + + int rc = VERR_NOT_FOUND; + ctf_id_t TypeIdent = ctf_lookup_by_name(pCtf, pszType); + if (TypeIdent != CTF_ERR) + { + ssize_t cbType = ctf_type_size(pCtf, TypeIdent); + if (cbType > 0) + { + *pcbType = cbType; + rc = VINF_SUCCESS; + } + else + rc = VERR_WRONG_TYPE; + } + + if (pszModule) + rtR0DbgKrnlInfoModRelease(pMod, pCtf); + return rc; +} + diff --git a/src/VBox/Runtime/r0drv/solaris/initterm-r0drv-solaris.c b/src/VBox/Runtime/r0drv/solaris/initterm-r0drv-solaris.c new file mode 100644 index 00000000..4320a775 --- /dev/null +++ b/src/VBox/Runtime/r0drv/solaris/initterm-r0drv-solaris.c @@ -0,0 +1,310 @@ +/* $Id: initterm-r0drv-solaris.c $ */ +/** @file + * IPRT - Initialization & Termination, Ring-0 Driver, Solaris. + */ + +/* + * Copyright (C) 2006-2023 Oracle and/or its affiliates. + * + * This file is part of VirtualBox base platform packages, as + * available from https://www.virtualbox.org. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation, in version 3 of the + * License. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, see <https://www.gnu.org/licenses>. + * + * The contents of this file may alternatively be used under the terms + * of the Common Development and Distribution License Version 1.0 + * (CDDL), a copy of it is provided in the "COPYING.CDDL" file included + * in the VirtualBox distribution, in which case the provisions of the + * CDDL are applicable instead of those of the GPL. + * + * You may elect to license modified versions of this file under the + * terms and conditions of either the GPL or the CDDL or both. + * + * SPDX-License-Identifier: GPL-3.0-only OR CDDL-1.0 + */ + + +/********************************************************************************************************************************* +* Header Files * +*********************************************************************************************************************************/ +#include "the-solaris-kernel.h" +#include "internal/iprt.h" + +#include <iprt/assert.h> +#include <iprt/errcore.h> +#if defined(RT_ARCH_AMD64) || defined(RT_ARCH_X86) +# include <iprt/asm-amd64-x86.h> +#endif +#include "internal/initterm.h" + + +/********************************************************************************************************************************* +* Global Variables * +*********************************************************************************************************************************/ +/** Kernel debug info handle. */ +RTDBGKRNLINFO g_hKrnlDbgInfo; +/** Indicates that the spl routines (and therefore a bunch of other ones too) + * will set EFLAGS::IF and break code that disables interrupts. */ +bool g_frtSolSplSetsEIF = false; +/** timeout_generic address. */ +PFNSOL_timeout_generic g_pfnrtR0Sol_timeout_generic = NULL; +/** untimeout_generic address. */ +PFNSOL_untimeout_generic g_pfnrtR0Sol_untimeout_generic = NULL; +/** cyclic_reprogram address. */ +PFNSOL_cyclic_reprogram g_pfnrtR0Sol_cyclic_reprogram = NULL; +/** page_noreloc_supported address. */ +PFNSOL_page_noreloc_supported g_pfnrtR0Sol_page_noreloc_supported = NULL; +/** Whether to use the kernel page freelist. */ +bool g_frtSolUseKflt = false; +/** Whether we've completed R0 initialization. */ +bool g_frtSolInitDone = false; +/** Whether to use old-style xc_call interface. */ +bool g_frtSolOldIPI = false; +/** Whether to use old-style xc_call interface using one ulong_t as the CPU set + * representation. */ +bool g_frtSolOldIPIUlong = false; +/** The xc_call callout table structure. */ +RTR0FNSOLXCCALL g_rtSolXcCall; +/** Whether to use the old-style installctx()/removectx() routines. */ +bool g_frtSolOldThreadCtx = false; +/** The thread-context hooks callout table structure. */ +RTR0FNSOLTHREADCTX g_rtSolThreadCtx; +/** Thread preemption offset in the thread structure. */ +size_t g_offrtSolThreadPreempt; +/** Thread ID offset in the thread structure. */ +size_t g_offrtSolThreadId; +/** The interrupt (pinned) thread pointer offset in the thread structure. */ +size_t g_offrtSolThreadIntrThread; +/** The dispatcher lock pointer offset in the thread structure. */ +size_t g_offrtSolThreadLock; +/** The process pointer offset in the thread structure. */ +size_t g_offrtSolThreadProc; +/** Host scheduler preemption offset. */ +size_t g_offrtSolCpuPreempt; +/** Host scheduler force preemption offset. */ +size_t g_offrtSolCpuForceKernelPreempt; +/** Whether to use the old-style map_addr() routine. */ +bool g_frtSolOldMapAddr = false; +/** The map_addr() hooks callout table structure. */ +RTR0FNSOLMAPADDR g_rtSolMapAddr; +/* Resolve using dl_lookup (remove if no longer relevant for supported S10 versions) */ +extern void contig_free(void *addr, size_t size); +#pragma weak contig_free +/** contig_free address. */ +PFNSOL_contig_free g_pfnrtR0Sol_contig_free = contig_free; + +DECLHIDDEN(int) rtR0InitNative(void) +{ + /* + * IPRT has not yet been initialized at this point, so use Solaris' native cmn_err() for logging. + */ + int rc = RTR0DbgKrnlInfoOpen(&g_hKrnlDbgInfo, 0 /* fFlags */); + if (RT_SUCCESS(rc)) + { +#if defined(RT_ARCH_AMD64) || defined(RT_ARCH_X86) + /* + * Detect whether spl*() is preserving the interrupt flag or not. + * This is a problem on S10. + */ + RTCCUINTREG uOldFlags = ASMIntDisableFlags(); + int iOld = splr(DISP_LEVEL); + if (ASMIntAreEnabled()) + g_frtSolSplSetsEIF = true; + splx(iOld); + if (ASMIntAreEnabled()) + g_frtSolSplSetsEIF = true; + ASMSetFlags(uOldFlags); +#else + /* PORTME: See if the amd64/x86 problem applies to this architecture. */ +#endif + /* + * Mandatory: Preemption offsets. + */ + rc = RTR0DbgKrnlInfoQueryMember(g_hKrnlDbgInfo, NULL, "cpu_t", "cpu_runrun", &g_offrtSolCpuPreempt); + if (RT_FAILURE(rc)) + { + cmn_err(CE_NOTE, "Failed to find cpu_t::cpu_runrun!\n"); + goto errorbail; + } + + rc = RTR0DbgKrnlInfoQueryMember(g_hKrnlDbgInfo, NULL, "cpu_t", "cpu_kprunrun", &g_offrtSolCpuForceKernelPreempt); + if (RT_FAILURE(rc)) + { + cmn_err(CE_NOTE, "Failed to find cpu_t::cpu_kprunrun!\n"); + goto errorbail; + } + + rc = RTR0DbgKrnlInfoQueryMember(g_hKrnlDbgInfo, NULL, "kthread_t", "t_preempt", &g_offrtSolThreadPreempt); + if (RT_FAILURE(rc)) + { + cmn_err(CE_NOTE, "Failed to find kthread_t::t_preempt!\n"); + goto errorbail; + } + + rc = RTR0DbgKrnlInfoQueryMember(g_hKrnlDbgInfo, NULL, "kthread_t", "t_did", &g_offrtSolThreadId); + if (RT_FAILURE(rc)) + { + cmn_err(CE_NOTE, "Failed to find kthread_t::t_did!\n"); + goto errorbail; + } + + rc = RTR0DbgKrnlInfoQueryMember(g_hKrnlDbgInfo, NULL, "kthread_t", "t_intr", &g_offrtSolThreadIntrThread); + if (RT_FAILURE(rc)) + { + cmn_err(CE_NOTE, "Failed to find kthread_t::t_intr!\n"); + goto errorbail; + } + + rc = RTR0DbgKrnlInfoQueryMember(g_hKrnlDbgInfo, NULL, "kthread_t", "t_lockp", &g_offrtSolThreadLock); + if (RT_FAILURE(rc)) + { + cmn_err(CE_NOTE, "Failed to find kthread_t::t_lockp!\n"); + goto errorbail; + } + + rc = RTR0DbgKrnlInfoQueryMember(g_hKrnlDbgInfo, NULL, "kthread_t", "t_procp", &g_offrtSolThreadProc); + if (RT_FAILURE(rc)) + { + cmn_err(CE_NOTE, "Failed to find kthread_t::t_procp!\n"); + goto errorbail; + } + cmn_err(CE_CONT, "!cpu_t::cpu_runrun @ 0x%lx (%ld)\n", g_offrtSolCpuPreempt, g_offrtSolCpuPreempt); + cmn_err(CE_CONT, "!cpu_t::cpu_kprunrun @ 0x%lx (%ld)\n", g_offrtSolCpuForceKernelPreempt, g_offrtSolCpuForceKernelPreempt); + cmn_err(CE_CONT, "!kthread_t::t_preempt @ 0x%lx (%ld)\n", g_offrtSolThreadPreempt, g_offrtSolThreadPreempt); + cmn_err(CE_CONT, "!kthread_t::t_did @ 0x%lx (%ld)\n", g_offrtSolThreadId, g_offrtSolThreadId); + cmn_err(CE_CONT, "!kthread_t::t_intr @ 0x%lx (%ld)\n", g_offrtSolThreadIntrThread, g_offrtSolThreadIntrThread); + cmn_err(CE_CONT, "!kthread_t::t_lockp @ 0x%lx (%ld)\n", g_offrtSolThreadLock, g_offrtSolThreadLock); + cmn_err(CE_CONT, "!kthread_t::t_procp @ 0x%lx (%ld)\n", g_offrtSolThreadProc, g_offrtSolThreadProc); + + /* + * Mandatory: CPU cross call infrastructure. Refer the-solaris-kernel.h for details. + */ + rc = RTR0DbgKrnlInfoQuerySymbol(g_hKrnlDbgInfo, NULL /* pszModule */, "xc_init_cpu", NULL /* ppvSymbol */); + if (RT_SUCCESS(rc)) + { + if (ncpus > IPRT_SOL_NCPUS) + { + cmn_err(CE_NOTE, "rtR0InitNative: CPU count mismatch! ncpus=%d IPRT_SOL_NCPUS=%d\n", ncpus, IPRT_SOL_NCPUS); + rc = VERR_NOT_SUPPORTED; + goto errorbail; + } + g_rtSolXcCall.u.pfnSol_xc_call = (void *)xc_call; + } + else + { + g_frtSolOldIPI = true; + g_rtSolXcCall.u.pfnSol_xc_call_old = (void *)xc_call; + if (max_cpuid + 1 == sizeof(ulong_t) * 8) + { + g_frtSolOldIPIUlong = true; + g_rtSolXcCall.u.pfnSol_xc_call_old_ulong = (void *)xc_call; + } + else if (max_cpuid + 1 != IPRT_SOL_NCPUS) + { + cmn_err(CE_NOTE, "rtR0InitNative: cpuset_t size mismatch! max_cpuid=%d IPRT_SOL_NCPUS=%d\n", max_cpuid, + IPRT_SOL_NCPUS); + rc = VERR_NOT_SUPPORTED; + goto errorbail; + } + } + + /* + * Mandatory: Thread-context hooks. + */ + rc = RTR0DbgKrnlInfoQuerySymbol(g_hKrnlDbgInfo, NULL /* pszModule */, "exitctx", NULL /* ppvSymbol */); + if (RT_SUCCESS(rc)) + { + g_rtSolThreadCtx.Install.pfnSol_installctx = (void *)installctx; + g_rtSolThreadCtx.Remove.pfnSol_removectx = (void *)removectx; + } + else + { + g_frtSolOldThreadCtx = true; + g_rtSolThreadCtx.Install.pfnSol_installctx_old = (void *)installctx; + g_rtSolThreadCtx.Remove.pfnSol_removectx_old = (void *)removectx; + } + + /* + * Mandatory: map_addr() hooks. + */ + rc = RTR0DbgKrnlInfoQuerySymbol(g_hKrnlDbgInfo, NULL /* pszModule */, "plat_map_align_amount", NULL /* ppvSymbol */); + if (RT_SUCCESS(rc)) + { + g_rtSolMapAddr.u.pfnSol_map_addr = (void *)map_addr; + } + else + { + g_frtSolOldMapAddr = true; + g_rtSolMapAddr.u.pfnSol_map_addr_old = (void *)map_addr; + } + + /* + * Optional: Timeout hooks. + */ + RTR0DbgKrnlInfoQuerySymbol(g_hKrnlDbgInfo, NULL /* pszModule */, "timeout_generic", + (void **)&g_pfnrtR0Sol_timeout_generic); + RTR0DbgKrnlInfoQuerySymbol(g_hKrnlDbgInfo, NULL /* pszModule */, "untimeout_generic", + (void **)&g_pfnrtR0Sol_untimeout_generic); + if ((g_pfnrtR0Sol_timeout_generic == NULL) != (g_pfnrtR0Sol_untimeout_generic == NULL)) + { + static const char *s_apszFn[2] = { "timeout_generic", "untimeout_generic" }; + bool iMissingFn = g_pfnrtR0Sol_timeout_generic == NULL; + cmn_err(CE_NOTE, "rtR0InitNative: Weird! Found %s but not %s!\n", s_apszFn[!iMissingFn], s_apszFn[iMissingFn]); + g_pfnrtR0Sol_timeout_generic = NULL; + g_pfnrtR0Sol_untimeout_generic = NULL; + } + RTR0DbgKrnlInfoQuerySymbol(g_hKrnlDbgInfo, NULL /* pszModule */, "cyclic_reprogram", + (void **)&g_pfnrtR0Sol_cyclic_reprogram); + + /* + * Optional: Querying page no-relocation support. + */ + RTR0DbgKrnlInfoQuerySymbol(g_hKrnlDbgInfo, NULL /*pszModule */, "page_noreloc_supported", + (void **)&g_pfnrtR0Sol_page_noreloc_supported); + + /* + * Weak binding failures: contig_free + */ + if (g_pfnrtR0Sol_contig_free == NULL) + { + rc = RTR0DbgKrnlInfoQuerySymbol(g_hKrnlDbgInfo, NULL /* pszModule */, "contig_free", + (void **)&g_pfnrtR0Sol_contig_free); + if (RT_FAILURE(rc)) + { + cmn_err(CE_NOTE, "rtR0InitNative: failed to find contig_free!\n"); + goto errorbail; + } + } + + g_frtSolInitDone = true; + return VINF_SUCCESS; + } + else + { + cmn_err(CE_NOTE, "RTR0DbgKrnlInfoOpen failed. rc=%d\n", rc); + return rc; + } + +errorbail: + RTR0DbgKrnlInfoRelease(g_hKrnlDbgInfo); + return rc; +} + + +DECLHIDDEN(void) rtR0TermNative(void) +{ + RTR0DbgKrnlInfoRelease(g_hKrnlDbgInfo); + g_frtSolInitDone = false; +} + diff --git a/src/VBox/Runtime/r0drv/solaris/memobj-r0drv-solaris.c b/src/VBox/Runtime/r0drv/solaris/memobj-r0drv-solaris.c new file mode 100644 index 00000000..2308eff8 --- /dev/null +++ b/src/VBox/Runtime/r0drv/solaris/memobj-r0drv-solaris.c @@ -0,0 +1,1213 @@ +/* $Id: memobj-r0drv-solaris.c $ */ +/** @file + * IPRT - Ring-0 Memory Objects, Solaris. + */ + +/* + * Copyright (C) 2006-2023 Oracle and/or its affiliates. + * + * This file is part of VirtualBox base platform packages, as + * available from https://www.virtualbox.org. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation, in version 3 of the + * License. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, see <https://www.gnu.org/licenses>. + * + * The contents of this file may alternatively be used under the terms + * of the Common Development and Distribution License Version 1.0 + * (CDDL), a copy of it is provided in the "COPYING.CDDL" file included + * in the VirtualBox distribution, in which case the provisions of the + * CDDL are applicable instead of those of the GPL. + * + * You may elect to license modified versions of this file under the + * terms and conditions of either the GPL or the CDDL or both. + * + * SPDX-License-Identifier: GPL-3.0-only OR CDDL-1.0 + */ + + +/********************************************************************************************************************************* +* Header Files * +*********************************************************************************************************************************/ +#include "the-solaris-kernel.h" +#include "internal/iprt.h" +#include <iprt/memobj.h> + +#include <iprt/asm.h> +#include <iprt/assert.h> +#include <iprt/err.h> +#include <iprt/log.h> +#include <iprt/mem.h> +#include <iprt/param.h> +#include <iprt/process.h> +#include "internal/memobj.h" +#include "memobj-r0drv-solaris.h" + + +/********************************************************************************************************************************* +* Defined Constants And Macros * +*********************************************************************************************************************************/ +#define SOL_IS_KRNL_ADDR(vx) ((uintptr_t)(vx) >= kernelbase) + + +/********************************************************************************************************************************* +* Structures and Typedefs * +*********************************************************************************************************************************/ +/** + * The Solaris version of the memory object structure. + */ +typedef struct RTR0MEMOBJSOL +{ + /** The core structure. */ + RTR0MEMOBJINTERNAL Core; + /** Pointer to kernel memory cookie. */ + ddi_umem_cookie_t Cookie; + /** Shadow locked pages. */ + void *pvHandle; + /** Access during locking. */ + int fAccess; + /** Set if large pages are involved in an RTR0MEMOBJTYPE_PHYS allocation. */ + bool fLargePage; + /** Whether we have individual pages or a kernel-mapped virtual memory + * block in an RTR0MEMOBJTYPE_PHYS_NC allocation. */ + bool fIndivPages; + /** Set if executable allocation - only RTR0MEMOBJTYPE_PHYS. */ + bool fExecutable; +} RTR0MEMOBJSOL, *PRTR0MEMOBJSOL; + + +/********************************************************************************************************************************* +* Global Variables * +*********************************************************************************************************************************/ +static vnode_t g_PageVnode; +static kmutex_t g_OffsetMtx; +static u_offset_t g_offPage; + +static vnode_t g_LargePageVnode; +static kmutex_t g_LargePageOffsetMtx; +static u_offset_t g_offLargePage; +static bool g_fLargePageNoReloc; + + +/** + * Returns the physical address for a virtual address. + * + * @param pv The virtual address. + * + * @returns The physical address corresponding to @a pv. + */ +static uint64_t rtR0MemObjSolVirtToPhys(void *pv) +{ + struct hat *pHat = NULL; + pfn_t PageFrameNum = 0; + uintptr_t uVirtAddr = (uintptr_t)pv; + + if (SOL_IS_KRNL_ADDR(pv)) + pHat = kas.a_hat; + else + { + proc_t *pProcess = (proc_t *)RTR0ProcHandleSelf(); + AssertRelease(pProcess); + pHat = pProcess->p_as->a_hat; + } + + PageFrameNum = hat_getpfnum(pHat, (caddr_t)(uVirtAddr & PAGEMASK)); + AssertReleaseMsg(PageFrameNum != PFN_INVALID, ("rtR0MemObjSolVirtToPhys failed. pv=%p\n", pv)); + return (((uint64_t)PageFrameNum << PAGE_SHIFT) | (uVirtAddr & PAGE_OFFSET_MASK)); +} + + +/** + * Returns the physical address for a page. + * + * @param pPage Pointer to the page. + * + * @returns The physical address for a page. + */ +static inline uint64_t rtR0MemObjSolPagePhys(page_t *pPage) +{ + AssertPtr(pPage); + pfn_t PageFrameNum = page_pptonum(pPage); + AssertReleaseMsg(PageFrameNum != PFN_INVALID, ("rtR0MemObjSolPagePhys failed pPage=%p\n")); + return (uint64_t)PageFrameNum << PAGE_SHIFT; +} + + +/** + * Allocates one page. + * + * @param virtAddr The virtual address to which this page maybe mapped in + * the future. + * + * @returns Pointer to the allocated page, NULL on failure. + */ +static page_t *rtR0MemObjSolPageAlloc(caddr_t virtAddr) +{ + u_offset_t offPage; + seg_t KernelSeg; + + /* + * 16777215 terabytes of total memory for all VMs or + * restart 8000 1GB VMs 2147483 times until wraparound! + */ + mutex_enter(&g_OffsetMtx); + AssertCompileSize(u_offset_t, sizeof(uint64_t)); NOREF(RTASSERTVAR); + g_offPage = RT_ALIGN_64(g_offPage, PAGE_SIZE) + PAGE_SIZE; + offPage = g_offPage; + mutex_exit(&g_OffsetMtx); + + KernelSeg.s_as = &kas; + page_t *pPage = page_create_va(&g_PageVnode, offPage, PAGE_SIZE, PG_WAIT | PG_NORELOC, &KernelSeg, virtAddr); + if (RT_LIKELY(pPage)) + { + /* + * Lock this page into memory "long term" to prevent this page from being paged out + * when we drop the page lock temporarily (during free). Downgrade to a shared lock + * to prevent page relocation. + */ + page_pp_lock(pPage, 0 /* COW */, 1 /* Kernel */); + page_io_unlock(pPage); + page_downgrade(pPage); + Assert(PAGE_LOCKED_SE(pPage, SE_SHARED)); + } + + return pPage; +} + + +/** + * Destroys an allocated page. + * + * @param pPage Pointer to the page to be destroyed. + * @remarks This function expects page in @c pPage to be shared locked. + */ +static void rtR0MemObjSolPageDestroy(page_t *pPage) +{ + /* + * We need to exclusive lock the pages before freeing them, if upgrading the shared lock to exclusive fails, + * drop the page lock and look it up from the hash. Record the page offset before we drop the page lock as + * we cannot touch any page_t members once the lock is dropped. + */ + AssertPtr(pPage); + Assert(PAGE_LOCKED_SE(pPage, SE_SHARED)); + + u_offset_t offPage = pPage->p_offset; + int rc = page_tryupgrade(pPage); + if (!rc) + { + page_unlock(pPage); + page_t *pFoundPage = page_lookup(&g_PageVnode, offPage, SE_EXCL); + + /* + * Since we allocated the pages as PG_NORELOC we should only get back the exact page always. + */ + AssertReleaseMsg(pFoundPage == pPage, ("Page lookup failed %p:%llx returned %p, expected %p\n", + &g_PageVnode, offPage, pFoundPage, pPage)); + } + Assert(PAGE_LOCKED_SE(pPage, SE_EXCL)); + page_pp_unlock(pPage, 0 /* COW */, 1 /* Kernel */); + page_destroy(pPage, 0 /* move it to the free list */); +} + + +/* Currently not used on 32-bits, define it to shut up gcc. */ +#if HC_ARCH_BITS == 64 +/** + * Allocates physical, non-contiguous memory of pages. + * + * @param puPhys Where to store the physical address of first page. Optional, + * can be NULL. + * @param cb The size of the allocation. + * + * @return Array of allocated pages, NULL on failure. + */ +static page_t **rtR0MemObjSolPagesAlloc(uint64_t *puPhys, size_t cb) +{ + /* + * VM1: + * The page freelist and cachelist both hold pages that are not mapped into any address space. + * The cachelist is not really free pages but when memory is exhausted they'll be moved to the + * free lists, it's the total of the free+cache list that we see on the 'free' column in vmstat. + * + * VM2: + * @todo Document what happens behind the scenes in VM2 regarding the free and cachelist. + */ + + /* + * Non-pageable memory reservation request for _4K pages, don't sleep. + */ + size_t cPages = (cb + PAGE_SIZE - 1) >> PAGE_SHIFT; + int rc = page_resv(cPages, KM_NOSLEEP); + if (rc) + { + size_t cbPages = cPages * sizeof(page_t *); + page_t **ppPages = kmem_zalloc(cbPages, KM_SLEEP); + if (RT_LIKELY(ppPages)) + { + /* + * Get pages from kseg, the 'virtAddr' here is only for colouring but unfortunately + * we don't yet have the 'virtAddr' to which this memory may be mapped. + */ + caddr_t virtAddr = 0; + for (size_t i = 0; i < cPages; i++, virtAddr += PAGE_SIZE) + { + /* + * Get a page from the free list locked exclusively. The page will be named (hashed in) + * and we rely on it during free. The page we get will be shared locked to prevent the page + * from being relocated. + */ + page_t *pPage = rtR0MemObjSolPageAlloc(virtAddr); + if (RT_UNLIKELY(!pPage)) + { + /* + * No page found, release whatever pages we grabbed so far. + */ + for (size_t k = 0; k < i; k++) + rtR0MemObjSolPageDestroy(ppPages[k]); + kmem_free(ppPages, cbPages); + page_unresv(cPages); + return NULL; + } + + ppPages[i] = pPage; + } + + if (puPhys) + *puPhys = rtR0MemObjSolPagePhys(ppPages[0]); + return ppPages; + } + + page_unresv(cPages); + } + + return NULL; +} +#endif /* HC_ARCH_BITS == 64 */ + + +/** + * Frees the allocates pages. + * + * @param ppPages Pointer to the page list. + * @param cbPages Size of the allocation. + */ +static void rtR0MemObjSolPagesFree(page_t **ppPages, size_t cb) +{ + size_t cPages = (cb + PAGE_SIZE - 1) >> PAGE_SHIFT; + size_t cbPages = cPages * sizeof(page_t *); + for (size_t iPage = 0; iPage < cPages; iPage++) + rtR0MemObjSolPageDestroy(ppPages[iPage]); + + kmem_free(ppPages, cbPages); + page_unresv(cPages); +} + + +/** + * Allocates one large page. + * + * @param puPhys Where to store the physical address of the allocated + * page. Optional, can be NULL. + * @param cbLargePage Size of the large page. + * + * @returns Pointer to a list of pages that cover the large page, NULL on + * failure. + */ +static page_t **rtR0MemObjSolLargePageAlloc(uint64_t *puPhys, size_t cbLargePage) +{ + /* + * Check PG_NORELOC support for large pages. Using this helps prevent _1G page + * fragementation on systems that support it. + */ + static bool fPageNoRelocChecked = false; + if (fPageNoRelocChecked == false) + { + fPageNoRelocChecked = true; + g_fLargePageNoReloc = false; + if ( g_pfnrtR0Sol_page_noreloc_supported + && g_pfnrtR0Sol_page_noreloc_supported(cbLargePage)) + { + g_fLargePageNoReloc = true; + } + } + + /* + * Non-pageable memory reservation request for _4K pages, don't sleep. + */ + size_t cPages = (cbLargePage + PAGE_SIZE - 1) >> PAGE_SHIFT; + size_t cbPages = cPages * sizeof(page_t *); + u_offset_t offPage = 0; + int rc = page_resv(cPages, KM_NOSLEEP); + if (rc) + { + page_t **ppPages = kmem_zalloc(cbPages, KM_SLEEP); + if (RT_LIKELY(ppPages)) + { + mutex_enter(&g_LargePageOffsetMtx); + AssertCompileSize(u_offset_t, sizeof(uint64_t)); NOREF(RTASSERTVAR); + g_offLargePage = RT_ALIGN_64(g_offLargePage, cbLargePage) + cbLargePage; + offPage = g_offLargePage; + mutex_exit(&g_LargePageOffsetMtx); + + seg_t KernelSeg; + KernelSeg.s_as = &kas; + page_t *pRootPage = page_create_va_large(&g_LargePageVnode, offPage, cbLargePage, + PG_EXCL | (g_fLargePageNoReloc ? PG_NORELOC : 0), &KernelSeg, + 0 /* vaddr */,NULL /* locality group */); + if (pRootPage) + { + /* + * Split it into sub-pages, downgrade each page to a shared lock to prevent page relocation. + */ + page_t *pPageList = pRootPage; + for (size_t iPage = 0; iPage < cPages; iPage++) + { + page_t *pPage = pPageList; + AssertPtr(pPage); + AssertMsg(page_pptonum(pPage) == iPage + page_pptonum(pRootPage), + ("%p:%lx %lx+%lx\n", pPage, page_pptonum(pPage), iPage, page_pptonum(pRootPage))); + AssertMsg(pPage->p_szc == pRootPage->p_szc, ("Size code mismatch %p %d %d\n", pPage, + (int)pPage->p_szc, (int)pRootPage->p_szc)); + + /* + * Lock the page into memory "long term". This prevents callers of page_try_demote_pages() (such as the + * pageout scanner) from demoting the large page into smaller pages while we temporarily release the + * exclusive lock (during free). We pass "0, 1" since we've already accounted for availrmem during + * page_resv(). + */ + page_pp_lock(pPage, 0 /* COW */, 1 /* Kernel */); + + page_sub(&pPageList, pPage); + page_io_unlock(pPage); + page_downgrade(pPage); + Assert(PAGE_LOCKED_SE(pPage, SE_SHARED)); + + ppPages[iPage] = pPage; + } + Assert(pPageList == NULL); + Assert(ppPages[0] == pRootPage); + + uint64_t uPhys = rtR0MemObjSolPagePhys(pRootPage); + AssertMsg(!(uPhys & (cbLargePage - 1)), ("%llx %zx\n", uPhys, cbLargePage)); + if (puPhys) + *puPhys = uPhys; + return ppPages; + } + + /* + * Don't restore offPrev in case of failure (race condition), we have plenty of offset space. + * The offset must be unique (for the same vnode) or we'll encounter panics on page_create_va_large(). + */ + kmem_free(ppPages, cbPages); + } + + page_unresv(cPages); + } + return NULL; +} + + +/** + * Frees the large page. + * + * @param ppPages Pointer to the list of small pages that cover the + * large page. + * @param cbLargePage Size of the allocation (i.e. size of the large + * page). + */ +static void rtR0MemObjSolLargePageFree(page_t **ppPages, size_t cbLargePage) +{ + Assert(ppPages); + Assert(cbLargePage > PAGE_SIZE); + + bool fDemoted = false; + size_t cPages = (cbLargePage + PAGE_SIZE - 1) >> PAGE_SHIFT; + size_t cbPages = cPages * sizeof(page_t *); + page_t *pPageList = ppPages[0]; + + for (size_t iPage = 0; iPage < cPages; iPage++) + { + /* + * We need the pages exclusively locked, try upgrading the shared lock. + * If it fails, drop the shared page lock (cannot access any page_t members once this is done) + * and lookup the page from the page hash locking it exclusively. + */ + page_t *pPage = ppPages[iPage]; + u_offset_t offPage = pPage->p_offset; + int rc = page_tryupgrade(pPage); + if (!rc) + { + page_unlock(pPage); + page_t *pFoundPage = page_lookup(&g_LargePageVnode, offPage, SE_EXCL); + AssertRelease(pFoundPage); + + if (g_fLargePageNoReloc) + { + /* + * This can only be guaranteed if PG_NORELOC is used while allocating the pages. + */ + AssertReleaseMsg(pFoundPage == pPage, + ("lookup failed %p:%llu returned %p, expected %p\n", &g_LargePageVnode, offPage, + pFoundPage, pPage)); + } + + /* + * Check for page demotion (regardless of relocation). Some places in Solaris (e.g. VM1 page_retire()) + * could possibly demote the large page to _4K pages between our call to page_unlock() and page_lookup(). + */ + if (page_get_pagecnt(pFoundPage->p_szc) == 1) /* Base size of only _4K associated with this page. */ + fDemoted = true; + pPage = pFoundPage; + ppPages[iPage] = pFoundPage; + } + Assert(PAGE_LOCKED_SE(pPage, SE_EXCL)); + page_pp_unlock(pPage, 0 /* COW */, 1 /* Kernel */); + } + + if (fDemoted) + { + for (size_t iPage = 0; iPage < cPages; iPage++) + { + Assert(page_get_pagecnt(ppPages[iPage]->p_szc) == 1); + page_destroy(ppPages[iPage], 0 /* move it to the free list */); + } + } + else + { + /* + * Although we shred the adjacent pages in the linked list, page_destroy_pages works on + * adjacent pages via array increments. So this does indeed free all the pages. + */ + AssertPtr(pPageList); + page_destroy_pages(pPageList); + } + kmem_free(ppPages, cbPages); + page_unresv(cPages); +} + + +/** + * Unmaps kernel/user-space mapped memory. + * + * @param pv Pointer to the mapped memory block. + * @param cb Size of the memory block. + */ +static void rtR0MemObjSolUnmap(void *pv, size_t cb) +{ + if (SOL_IS_KRNL_ADDR(pv)) + { + hat_unload(kas.a_hat, pv, cb, HAT_UNLOAD | HAT_UNLOAD_UNLOCK); + vmem_free(heap_arena, pv, cb); + } + else + { + struct as *pAddrSpace = ((proc_t *)RTR0ProcHandleSelf())->p_as; + AssertPtr(pAddrSpace); + as_rangelock(pAddrSpace); + as_unmap(pAddrSpace, pv, cb); + as_rangeunlock(pAddrSpace); + } +} + + +/** + * Lock down memory mappings for a virtual address. + * + * @param pv Pointer to the memory to lock down. + * @param cb Size of the memory block. + * @param fAccess Page access rights (S_READ, S_WRITE, S_EXEC) + * + * @returns IPRT status code. + */ +static int rtR0MemObjSolLock(void *pv, size_t cb, int fPageAccess) +{ + /* + * Kernel memory mappings on x86/amd64 are always locked, only handle user-space memory. + */ + if (!SOL_IS_KRNL_ADDR(pv)) + { + proc_t *pProc = (proc_t *)RTR0ProcHandleSelf(); + AssertPtr(pProc); + faultcode_t rc = as_fault(pProc->p_as->a_hat, pProc->p_as, (caddr_t)pv, cb, F_SOFTLOCK, fPageAccess); + if (rc) + { + LogRel(("rtR0MemObjSolLock failed for pv=%pv cb=%lx fPageAccess=%d rc=%d\n", pv, cb, fPageAccess, rc)); + return VERR_LOCK_FAILED; + } + } + return VINF_SUCCESS; +} + + +/** + * Unlock memory mappings for a virtual address. + * + * @param pv Pointer to the locked memory. + * @param cb Size of the memory block. + * @param fPageAccess Page access rights (S_READ, S_WRITE, S_EXEC). + */ +static void rtR0MemObjSolUnlock(void *pv, size_t cb, int fPageAccess) +{ + if (!SOL_IS_KRNL_ADDR(pv)) + { + proc_t *pProcess = (proc_t *)RTR0ProcHandleSelf(); + AssertPtr(pProcess); + as_fault(pProcess->p_as->a_hat, pProcess->p_as, (caddr_t)pv, cb, F_SOFTUNLOCK, fPageAccess); + } +} + + +/** + * Maps a list of physical pages into user address space. + * + * @param pVirtAddr Where to store the virtual address of the mapping. + * @param fPageAccess Page access rights (PROT_READ, PROT_WRITE, + * PROT_EXEC) + * @param paPhysAddrs Array of physical addresses to pages. + * @param cb Size of memory being mapped. + * + * @returns IPRT status code. + */ +static int rtR0MemObjSolUserMap(caddr_t *pVirtAddr, unsigned fPageAccess, uint64_t *paPhysAddrs, size_t cb, size_t cbPageSize) +{ + struct as *pAddrSpace = ((proc_t *)RTR0ProcHandleSelf())->p_as; + int rc; + SEGVBOX_CRARGS Args; + + Args.paPhysAddrs = paPhysAddrs; + Args.fPageAccess = fPageAccess; + Args.cbPageSize = cbPageSize; + + as_rangelock(pAddrSpace); + if (g_frtSolOldMapAddr) + g_rtSolMapAddr.u.pfnSol_map_addr_old(pVirtAddr, cb, 0 /* offset */, 0 /* vacalign */, MAP_SHARED); + else + g_rtSolMapAddr.u.pfnSol_map_addr(pVirtAddr, cb, 0 /* offset */, MAP_SHARED); + if (*pVirtAddr != NULL) + rc = as_map(pAddrSpace, *pVirtAddr, cb, rtR0SegVBoxSolCreate, &Args); + else + rc = ENOMEM; + as_rangeunlock(pAddrSpace); + + return RTErrConvertFromErrno(rc); +} + + +DECLHIDDEN(int) rtR0MemObjNativeFree(RTR0MEMOBJ pMem) +{ + PRTR0MEMOBJSOL pMemSolaris = (PRTR0MEMOBJSOL)pMem; + + switch (pMemSolaris->Core.enmType) + { + case RTR0MEMOBJTYPE_LOW: + rtR0SolMemFree(pMemSolaris->Core.pv, pMemSolaris->Core.cb); + break; + + case RTR0MEMOBJTYPE_PHYS: + if (pMemSolaris->Core.u.Phys.fAllocated) + { + if (pMemSolaris->fLargePage) + rtR0MemObjSolLargePageFree(pMemSolaris->pvHandle, pMemSolaris->Core.cb); + else + rtR0SolMemFree(pMemSolaris->Core.pv, pMemSolaris->Core.cb); + } + break; + + case RTR0MEMOBJTYPE_PHYS_NC: + if (pMemSolaris->fIndivPages) + rtR0MemObjSolPagesFree(pMemSolaris->pvHandle, pMemSolaris->Core.cb); + else + rtR0SolMemFree(pMemSolaris->Core.pv, pMemSolaris->Core.cb); + break; + + case RTR0MEMOBJTYPE_PAGE: + if (!pMemSolaris->fExecutable) + ddi_umem_free(pMemSolaris->Cookie); + else + segkmem_free(heaptext_arena, pMemSolaris->Core.pv, pMemSolaris->Core.cb); + break; + + case RTR0MEMOBJTYPE_LOCK: + rtR0MemObjSolUnlock(pMemSolaris->Core.pv, pMemSolaris->Core.cb, pMemSolaris->fAccess); + break; + + case RTR0MEMOBJTYPE_MAPPING: + rtR0MemObjSolUnmap(pMemSolaris->Core.pv, pMemSolaris->Core.cb); + break; + + case RTR0MEMOBJTYPE_RES_VIRT: + if (pMemSolaris->Core.u.ResVirt.R0Process == NIL_RTR0PROCESS) + vmem_xfree(heap_arena, pMemSolaris->Core.pv, pMemSolaris->Core.cb); + else + AssertFailed(); + break; + + case RTR0MEMOBJTYPE_CONT: /* we don't use this type here. */ + default: + AssertMsgFailed(("enmType=%d\n", pMemSolaris->Core.enmType)); + return VERR_INTERNAL_ERROR; + } + + return VINF_SUCCESS; +} + + +DECLHIDDEN(int) rtR0MemObjNativeAllocPage(PPRTR0MEMOBJINTERNAL ppMem, size_t cb, bool fExecutable, const char *pszTag) +{ + /* Create the object. */ + PRTR0MEMOBJSOL pMemSolaris = (PRTR0MEMOBJSOL)rtR0MemObjNew(sizeof(*pMemSolaris), RTR0MEMOBJTYPE_PAGE, NULL, cb, pszTag); + if (pMemSolaris) + { + void *pvMem; + if (!fExecutable) + { + pMemSolaris->Core.fFlags |= RTR0MEMOBJ_FLAGS_ZERO_AT_ALLOC; + pvMem = ddi_umem_alloc(cb, DDI_UMEM_SLEEP, &pMemSolaris->Cookie); + } + else + { + pMemSolaris->Core.fFlags |= RTR0MEMOBJ_FLAGS_UNINITIALIZED_AT_ALLOC; /** @todo does segkmem_alloc zero the memory? */ + pvMem = segkmem_alloc(heaptext_arena, cb, KM_SLEEP); + } + if (pvMem) + { + pMemSolaris->Core.pv = pvMem; + pMemSolaris->pvHandle = NULL; + pMemSolaris->fExecutable = fExecutable; + *ppMem = &pMemSolaris->Core; + return VINF_SUCCESS; + } + rtR0MemObjDelete(&pMemSolaris->Core); + return VERR_NO_PAGE_MEMORY; + } + return VERR_NO_MEMORY; +} + + +DECLHIDDEN(int) rtR0MemObjNativeAllocLarge(PPRTR0MEMOBJINTERNAL ppMem, size_t cb, size_t cbLargePage, uint32_t fFlags, + const char *pszTag) +{ + return rtR0MemObjFallbackAllocLarge(ppMem, cb, cbLargePage, fFlags, pszTag); +} + + +DECLHIDDEN(int) rtR0MemObjNativeAllocLow(PPRTR0MEMOBJINTERNAL ppMem, size_t cb, bool fExecutable, const char *pszTag) +{ + AssertReturn(!fExecutable, VERR_NOT_SUPPORTED); + + /* Create the object */ + PRTR0MEMOBJSOL pMemSolaris = (PRTR0MEMOBJSOL)rtR0MemObjNew(sizeof(*pMemSolaris), RTR0MEMOBJTYPE_LOW, NULL, cb, pszTag); + if (pMemSolaris) + { + /* Allocate physically low page-aligned memory. */ + uint64_t uPhysHi = _4G - 1; + void *pvMem = rtR0SolMemAlloc(uPhysHi, NULL /* puPhys */, cb, PAGE_SIZE, false /* fContig */); + if (pvMem) + { + pMemSolaris->Core.fFlags |= RTR0MEMOBJ_FLAGS_UNINITIALIZED_AT_ALLOC; + pMemSolaris->Core.pv = pvMem; + pMemSolaris->pvHandle = NULL; + *ppMem = &pMemSolaris->Core; + return VINF_SUCCESS; + } + rtR0MemObjDelete(&pMemSolaris->Core); + return VERR_NO_LOW_MEMORY; + } + return VERR_NO_MEMORY; +} + + +DECLHIDDEN(int) rtR0MemObjNativeAllocCont(PPRTR0MEMOBJINTERNAL ppMem, size_t cb, bool fExecutable, const char *pszTag) +{ + AssertReturn(!fExecutable, VERR_NOT_SUPPORTED); + return rtR0MemObjNativeAllocPhys(ppMem, cb, _4G - 1, PAGE_SIZE /* alignment */, pszTag); +} + + +DECLHIDDEN(int) rtR0MemObjNativeAllocPhysNC(PPRTR0MEMOBJINTERNAL ppMem, size_t cb, RTHCPHYS PhysHighest, const char *pszTag) +{ +#if HC_ARCH_BITS == 64 + PRTR0MEMOBJSOL pMemSolaris = (PRTR0MEMOBJSOL)rtR0MemObjNew(sizeof(*pMemSolaris), RTR0MEMOBJTYPE_PHYS_NC, NULL, cb, pszTag); + if (pMemSolaris) + { + if (PhysHighest == NIL_RTHCPHYS) + { + uint64_t PhysAddr = UINT64_MAX; + void *pvPages = rtR0MemObjSolPagesAlloc(&PhysAddr, cb); + if (!pvPages) + { + LogRel(("rtR0MemObjNativeAllocPhysNC: rtR0MemObjSolPagesAlloc failed for cb=%u.\n", cb)); + rtR0MemObjDelete(&pMemSolaris->Core); + return VERR_NO_MEMORY; + } + Assert(PhysAddr != UINT64_MAX); + Assert(!(PhysAddr & PAGE_OFFSET_MASK)); + + pMemSolaris->Core.pv = NULL; + pMemSolaris->pvHandle = pvPages; + pMemSolaris->fIndivPages = true; + } + else + { + /* + * If we must satisfy an upper limit constraint, it isn't feasible to grab individual pages. + * We fall back to using contig_alloc(). + */ + uint64_t PhysAddr = UINT64_MAX; + void *pvMem = rtR0SolMemAlloc(PhysHighest, &PhysAddr, cb, PAGE_SIZE, false /* fContig */); + if (!pvMem) + { + LogRel(("rtR0MemObjNativeAllocPhysNC: rtR0SolMemAlloc failed for cb=%u PhysHighest=%RHp.\n", cb, PhysHighest)); + rtR0MemObjDelete(&pMemSolaris->Core); + return VERR_NO_MEMORY; + } + Assert(PhysAddr != UINT64_MAX); + Assert(!(PhysAddr & PAGE_OFFSET_MASK)); + + pMemSolaris->Core.pv = pvMem; + pMemSolaris->pvHandle = NULL; + pMemSolaris->fIndivPages = false; + } + pMemSolaris->Core.fFlags |= RTR0MEMOBJ_FLAGS_UNINITIALIZED_AT_ALLOC; + *ppMem = &pMemSolaris->Core; + return VINF_SUCCESS; + } + return VERR_NO_MEMORY; + +#else /* 32 bit: */ + return VERR_NOT_SUPPORTED; /* see the RTR0MemObjAllocPhysNC specs */ +#endif +} + + +DECLHIDDEN(int) rtR0MemObjNativeAllocPhys(PPRTR0MEMOBJINTERNAL ppMem, size_t cb, RTHCPHYS PhysHighest, size_t uAlignment, + const char *pszTag) +{ + AssertMsgReturn(PhysHighest >= 16 *_1M, ("PhysHigest=%RHp\n", PhysHighest), VERR_NOT_SUPPORTED); + + PRTR0MEMOBJSOL pMemSolaris = (PRTR0MEMOBJSOL)rtR0MemObjNew(sizeof(*pMemSolaris), RTR0MEMOBJTYPE_PHYS, NULL, cb, pszTag); + if (RT_UNLIKELY(!pMemSolaris)) + return VERR_NO_MEMORY; + + /* + * Allocating one large page gets special treatment. + */ + static uint32_t s_cbLargePage = UINT32_MAX; + if (s_cbLargePage == UINT32_MAX) + { + if (page_num_pagesizes() > 1) + ASMAtomicWriteU32(&s_cbLargePage, page_get_pagesize(1)); /* Page-size code 1 maps to _2M on Solaris x86/amd64. */ + else + ASMAtomicWriteU32(&s_cbLargePage, 0); + } + + uint64_t PhysAddr; + if ( cb == s_cbLargePage + && cb == uAlignment + && PhysHighest == NIL_RTHCPHYS) + { + /* + * Allocate one large page (backed by physically contiguous memory). + */ + void *pvPages = rtR0MemObjSolLargePageAlloc(&PhysAddr, cb); + if (RT_LIKELY(pvPages)) + { + AssertMsg(!(PhysAddr & (cb - 1)), ("%RHp\n", PhysAddr)); + pMemSolaris->Core.fFlags |= RTR0MEMOBJ_FLAGS_UNINITIALIZED_AT_ALLOC; /*?*/ + pMemSolaris->Core.pv = NULL; + pMemSolaris->Core.u.Phys.PhysBase = PhysAddr; + pMemSolaris->Core.u.Phys.fAllocated = true; + pMemSolaris->pvHandle = pvPages; + pMemSolaris->fLargePage = true; + + *ppMem = &pMemSolaris->Core; + return VINF_SUCCESS; + } + } + else + { + /* + * Allocate physically contiguous memory aligned as specified. + */ + AssertCompile(NIL_RTHCPHYS == UINT64_MAX); NOREF(RTASSERTVAR); + PhysAddr = PhysHighest; + void *pvMem = rtR0SolMemAlloc(PhysHighest, &PhysAddr, cb, uAlignment, true /* fContig */); + if (RT_LIKELY(pvMem)) + { + Assert(!(PhysAddr & PAGE_OFFSET_MASK)); + Assert(PhysAddr < PhysHighest); + Assert(PhysAddr + cb <= PhysHighest); + + pMemSolaris->Core.fFlags |= RTR0MEMOBJ_FLAGS_UNINITIALIZED_AT_ALLOC; + pMemSolaris->Core.pv = pvMem; + pMemSolaris->Core.u.Phys.PhysBase = PhysAddr; + pMemSolaris->Core.u.Phys.fAllocated = true; + pMemSolaris->pvHandle = NULL; + pMemSolaris->fLargePage = false; + + *ppMem = &pMemSolaris->Core; + return VINF_SUCCESS; + } + } + rtR0MemObjDelete(&pMemSolaris->Core); + return VERR_NO_CONT_MEMORY; +} + + +DECLHIDDEN(int) rtR0MemObjNativeEnterPhys(PPRTR0MEMOBJINTERNAL ppMem, RTHCPHYS Phys, size_t cb, uint32_t uCachePolicy, + const char *pszTag) +{ + AssertReturn(uCachePolicy == RTMEM_CACHE_POLICY_DONT_CARE, VERR_NOT_SUPPORTED); + + /* Create the object. */ + PRTR0MEMOBJSOL pMemSolaris = (PRTR0MEMOBJSOL)rtR0MemObjNew(sizeof(*pMemSolaris), RTR0MEMOBJTYPE_PHYS, NULL, cb, pszTag); + if (!pMemSolaris) + return VERR_NO_MEMORY; + + /* There is no allocation here, it needs to be mapped somewhere first. */ + pMemSolaris->Core.u.Phys.fAllocated = false; + pMemSolaris->Core.u.Phys.PhysBase = Phys; + pMemSolaris->Core.u.Phys.uCachePolicy = uCachePolicy; + *ppMem = &pMemSolaris->Core; + return VINF_SUCCESS; +} + + +DECLHIDDEN(int) rtR0MemObjNativeLockUser(PPRTR0MEMOBJINTERNAL ppMem, RTR3PTR R3Ptr, size_t cb, uint32_t fAccess, + RTR0PROCESS R0Process, const char *pszTag) +{ + AssertReturn(R0Process == RTR0ProcHandleSelf(), VERR_INVALID_PARAMETER); + NOREF(fAccess); + + /* Create the locking object */ + PRTR0MEMOBJSOL pMemSolaris = (PRTR0MEMOBJSOL)rtR0MemObjNew(sizeof(*pMemSolaris), RTR0MEMOBJTYPE_LOCK, + (void *)R3Ptr, cb, pszTag); + if (!pMemSolaris) + return VERR_NO_MEMORY; + + /* Lock down user pages. */ + int fPageAccess = S_READ; + if (fAccess & RTMEM_PROT_WRITE) + fPageAccess = S_WRITE; + if (fAccess & RTMEM_PROT_EXEC) + fPageAccess = S_EXEC; + int rc = rtR0MemObjSolLock((void *)R3Ptr, cb, fPageAccess); + if (RT_FAILURE(rc)) + { + LogRel(("rtR0MemObjNativeLockUser: rtR0MemObjSolLock failed rc=%d\n", rc)); + rtR0MemObjDelete(&pMemSolaris->Core); + return rc; + } + + /* Fill in the object attributes and return successfully. */ + pMemSolaris->Core.u.Lock.R0Process = R0Process; + pMemSolaris->pvHandle = NULL; + pMemSolaris->fAccess = fPageAccess; + *ppMem = &pMemSolaris->Core; + return VINF_SUCCESS; +} + + +DECLHIDDEN(int) rtR0MemObjNativeLockKernel(PPRTR0MEMOBJINTERNAL ppMem, void *pv, size_t cb, uint32_t fAccess, const char *pszTag) +{ + NOREF(fAccess); + + PRTR0MEMOBJSOL pMemSolaris = (PRTR0MEMOBJSOL)rtR0MemObjNew(sizeof(*pMemSolaris), RTR0MEMOBJTYPE_LOCK, pv, cb, pszTag); + if (!pMemSolaris) + return VERR_NO_MEMORY; + + /* Lock down kernel pages. */ + int fPageAccess = S_READ; + if (fAccess & RTMEM_PROT_WRITE) + fPageAccess = S_WRITE; + if (fAccess & RTMEM_PROT_EXEC) + fPageAccess = S_EXEC; + int rc = rtR0MemObjSolLock(pv, cb, fPageAccess); + if (RT_FAILURE(rc)) + { + LogRel(("rtR0MemObjNativeLockKernel: rtR0MemObjSolLock failed rc=%d\n", rc)); + rtR0MemObjDelete(&pMemSolaris->Core); + return rc; + } + + /* Fill in the object attributes and return successfully. */ + pMemSolaris->Core.u.Lock.R0Process = NIL_RTR0PROCESS; + pMemSolaris->pvHandle = NULL; + pMemSolaris->fAccess = fPageAccess; + *ppMem = &pMemSolaris->Core; + return VINF_SUCCESS; +} + + +DECLHIDDEN(int) rtR0MemObjNativeReserveKernel(PPRTR0MEMOBJINTERNAL ppMem, void *pvFixed, size_t cb, size_t uAlignment, + const char *pszTag) +{ + PRTR0MEMOBJSOL pMemSolaris; + + /* + * Use xalloc. + */ + void *pv = vmem_xalloc(heap_arena, cb, uAlignment, 0 /* phase */, 0 /* nocross */, + NULL /* minaddr */, NULL /* maxaddr */, VM_SLEEP); + if (RT_UNLIKELY(!pv)) + return VERR_NO_MEMORY; + + /* Create the object. */ + pMemSolaris = (PRTR0MEMOBJSOL)rtR0MemObjNew(sizeof(*pMemSolaris), RTR0MEMOBJTYPE_RES_VIRT, pv, cb, pszTag); + if (!pMemSolaris) + { + LogRel(("rtR0MemObjNativeReserveKernel failed to alloc memory object.\n")); + vmem_xfree(heap_arena, pv, cb); + return VERR_NO_MEMORY; + } + + pMemSolaris->Core.u.ResVirt.R0Process = NIL_RTR0PROCESS; + *ppMem = &pMemSolaris->Core; + return VINF_SUCCESS; +} + + +DECLHIDDEN(int) rtR0MemObjNativeReserveUser(PPRTR0MEMOBJINTERNAL ppMem, RTR3PTR R3PtrFixed, size_t cb, size_t uAlignment, + RTR0PROCESS R0Process, const char *pszTag) +{ + RT_NOREF(ppMem, R3PtrFixed, cb, uAlignment, R0Process, pszTag); + return VERR_NOT_SUPPORTED; +} + + +DECLHIDDEN(int) rtR0MemObjNativeMapKernel(PPRTR0MEMOBJINTERNAL ppMem, RTR0MEMOBJ pMemToMap, void *pvFixed, size_t uAlignment, + unsigned fProt, size_t offSub, size_t cbSub, const char *pszTag) +{ + /* Fail if requested to do something we can't. */ + AssertMsgReturn(pvFixed == (void *)-1, ("%p\n", pvFixed), VERR_NOT_SUPPORTED); + if (uAlignment > PAGE_SIZE) + return VERR_NOT_SUPPORTED; + + /* + * Use xalloc to get address space. + */ + if (!cbSub) + cbSub = pMemToMap->cb; + void *pv = vmem_xalloc(heap_arena, cbSub, uAlignment, 0 /* phase */, 0 /* nocross */, + NULL /* minaddr */, NULL /* maxaddr */, VM_SLEEP); + if (RT_UNLIKELY(!pv)) + return VERR_MAP_FAILED; + + /* + * Load the pages from the other object into it. + */ + uint32_t fAttr = HAT_UNORDERED_OK | HAT_MERGING_OK | HAT_LOADCACHING_OK | HAT_STORECACHING_OK; + if (fProt & RTMEM_PROT_READ) + fAttr |= PROT_READ; + if (fProt & RTMEM_PROT_EXEC) + fAttr |= PROT_EXEC; + if (fProt & RTMEM_PROT_WRITE) + fAttr |= PROT_WRITE; + fAttr |= HAT_NOSYNC; + + int rc = VINF_SUCCESS; + size_t off = 0; + while (off < cbSub) + { + RTHCPHYS HCPhys = RTR0MemObjGetPagePhysAddr(pMemToMap, (offSub + off) >> PAGE_SHIFT); + AssertBreakStmt(HCPhys != NIL_RTHCPHYS, rc = VERR_INTERNAL_ERROR_2); + pfn_t pfn = HCPhys >> PAGE_SHIFT; + AssertBreakStmt(((RTHCPHYS)pfn << PAGE_SHIFT) == HCPhys, rc = VERR_INTERNAL_ERROR_3); + + hat_devload(kas.a_hat, (uint8_t *)pv + off, PAGE_SIZE, pfn, fAttr, HAT_LOAD_LOCK); + + /* Advance. */ + off += PAGE_SIZE; + } + if (RT_SUCCESS(rc)) + { + /* + * Create a memory object for the mapping. + */ + PRTR0MEMOBJSOL pMemSolaris = (PRTR0MEMOBJSOL)rtR0MemObjNew(sizeof(*pMemSolaris), RTR0MEMOBJTYPE_MAPPING, + pv, cbSub, pszTag); + if (pMemSolaris) + { + pMemSolaris->Core.u.Mapping.R0Process = NIL_RTR0PROCESS; + *ppMem = &pMemSolaris->Core; + return VINF_SUCCESS; + } + + LogRel(("rtR0MemObjNativeMapKernel failed to alloc memory object.\n")); + rc = VERR_NO_MEMORY; + } + + if (off) + hat_unload(kas.a_hat, pv, off, HAT_UNLOAD | HAT_UNLOAD_UNLOCK); + vmem_xfree(heap_arena, pv, cbSub); + return rc; +} + + +DECLHIDDEN(int) rtR0MemObjNativeMapUser(PPRTR0MEMOBJINTERNAL ppMem, PRTR0MEMOBJINTERNAL pMemToMap, RTR3PTR R3PtrFixed, + size_t uAlignment, unsigned fProt, RTR0PROCESS R0Process, size_t offSub, size_t cbSub, + const char *pszTag) +{ + /* + * Fend off things we cannot do. + */ + AssertMsgReturn(R3PtrFixed == (RTR3PTR)-1, ("%p\n", R3PtrFixed), VERR_NOT_SUPPORTED); + AssertMsgReturn(R0Process == RTR0ProcHandleSelf(), ("%p != %p\n", R0Process, RTR0ProcHandleSelf()), VERR_NOT_SUPPORTED); + if (uAlignment != PAGE_SIZE) + return VERR_NOT_SUPPORTED; + + /* + * Get parameters from the source object and offSub/cbSub. + */ + PRTR0MEMOBJSOL pMemToMapSolaris = (PRTR0MEMOBJSOL)pMemToMap; + uint8_t *pb = pMemToMapSolaris->Core.pv ? (uint8_t *)pMemToMapSolaris->Core.pv + offSub : NULL; + size_t const cb = cbSub ? cbSub : pMemToMapSolaris->Core.cb; + size_t const cPages = cb >> PAGE_SHIFT; + Assert(!offSub || cbSub); + Assert(!(cb & PAGE_OFFSET_MASK)); + + /* + * Create the mapping object + */ + PRTR0MEMOBJSOL pMemSolaris; + pMemSolaris = (PRTR0MEMOBJSOL)rtR0MemObjNew(sizeof(*pMemSolaris), RTR0MEMOBJTYPE_MAPPING, pb, cb, pszTag); + if (RT_UNLIKELY(!pMemSolaris)) + return VERR_NO_MEMORY; + + /* + * Gather the physical page address of the pages to be mapped. + */ + int rc = VINF_SUCCESS; + uint64_t *paPhysAddrs = kmem_zalloc(sizeof(uint64_t) * cPages, KM_SLEEP); + if (RT_LIKELY(paPhysAddrs)) + { + if ( pMemToMapSolaris->Core.enmType == RTR0MEMOBJTYPE_PHYS_NC + && pMemToMapSolaris->fIndivPages) + { + /* Translate individual page_t to physical addresses. */ + page_t **papPages = pMemToMapSolaris->pvHandle; + AssertPtr(papPages); + papPages += offSub >> PAGE_SHIFT; + for (size_t iPage = 0; iPage < cPages; iPage++) + paPhysAddrs[iPage] = rtR0MemObjSolPagePhys(papPages[iPage]); + } + else if ( pMemToMapSolaris->Core.enmType == RTR0MEMOBJTYPE_PHYS + && pMemToMapSolaris->fLargePage) + { + /* Split up the large page into page-sized chunks. */ + RTHCPHYS Phys = pMemToMapSolaris->Core.u.Phys.PhysBase; + Phys += offSub; + for (size_t iPage = 0; iPage < cPages; iPage++, Phys += PAGE_SIZE) + paPhysAddrs[iPage] = Phys; + } + else + { + /* Have kernel mapping, just translate virtual to physical. */ + AssertPtr(pb); + for (size_t iPage = 0; iPage < cPages; iPage++) + { + paPhysAddrs[iPage] = rtR0MemObjSolVirtToPhys(pb); + if (RT_UNLIKELY(paPhysAddrs[iPage] == -(uint64_t)1)) + { + LogRel(("rtR0MemObjNativeMapUser: no page to map.\n")); + rc = VERR_MAP_FAILED; + break; + } + pb += PAGE_SIZE; + } + } + if (RT_SUCCESS(rc)) + { + /* + * Perform the actual mapping. + */ + unsigned fPageAccess = PROT_READ; + if (fProt & RTMEM_PROT_WRITE) + fPageAccess |= PROT_WRITE; + if (fProt & RTMEM_PROT_EXEC) + fPageAccess |= PROT_EXEC; + + caddr_t UserAddr = NULL; + rc = rtR0MemObjSolUserMap(&UserAddr, fPageAccess, paPhysAddrs, cb, PAGE_SIZE); + if (RT_SUCCESS(rc)) + { + pMemSolaris->Core.u.Mapping.R0Process = R0Process; + pMemSolaris->Core.pv = UserAddr; + + *ppMem = &pMemSolaris->Core; + kmem_free(paPhysAddrs, sizeof(uint64_t) * cPages); + return VINF_SUCCESS; + } + + LogRel(("rtR0MemObjNativeMapUser: rtR0MemObjSolUserMap failed rc=%d.\n", rc)); + } + + rc = VERR_MAP_FAILED; + kmem_free(paPhysAddrs, sizeof(uint64_t) * cPages); + } + else + rc = VERR_NO_MEMORY; + rtR0MemObjDelete(&pMemSolaris->Core); + return rc; +} + + +DECLHIDDEN(int) rtR0MemObjNativeProtect(PRTR0MEMOBJINTERNAL pMem, size_t offSub, size_t cbSub, uint32_t fProt) +{ + NOREF(pMem); + NOREF(offSub); + NOREF(cbSub); + NOREF(fProt); + return VERR_NOT_SUPPORTED; +} + + +DECLHIDDEN(RTHCPHYS) rtR0MemObjNativeGetPagePhysAddr(PRTR0MEMOBJINTERNAL pMem, size_t iPage) +{ + PRTR0MEMOBJSOL pMemSolaris = (PRTR0MEMOBJSOL)pMem; + + switch (pMemSolaris->Core.enmType) + { + case RTR0MEMOBJTYPE_PHYS_NC: + if ( pMemSolaris->Core.u.Phys.fAllocated + || !pMemSolaris->fIndivPages) + { + uint8_t *pb = (uint8_t *)pMemSolaris->Core.pv + ((size_t)iPage << PAGE_SHIFT); + return rtR0MemObjSolVirtToPhys(pb); + } + page_t **ppPages = pMemSolaris->pvHandle; + return rtR0MemObjSolPagePhys(ppPages[iPage]); + + case RTR0MEMOBJTYPE_PAGE: + case RTR0MEMOBJTYPE_LOW: + case RTR0MEMOBJTYPE_LOCK: + { + uint8_t *pb = (uint8_t *)pMemSolaris->Core.pv + ((size_t)iPage << PAGE_SHIFT); + return rtR0MemObjSolVirtToPhys(pb); + } + + /* + * Although mapping can be handled by rtR0MemObjSolVirtToPhys(offset) like the above case, + * request it from the parent so that we have a clear distinction between CONT/PHYS_NC. + */ + case RTR0MEMOBJTYPE_MAPPING: + return rtR0MemObjNativeGetPagePhysAddr(pMemSolaris->Core.uRel.Child.pParent, iPage); + + case RTR0MEMOBJTYPE_CONT: + case RTR0MEMOBJTYPE_PHYS: + AssertFailed(); /* handled by the caller */ + case RTR0MEMOBJTYPE_RES_VIRT: + default: + return NIL_RTHCPHYS; + } +} + diff --git a/src/VBox/Runtime/r0drv/solaris/memobj-r0drv-solaris.h b/src/VBox/Runtime/r0drv/solaris/memobj-r0drv-solaris.h new file mode 100644 index 00000000..8dbb6e5e --- /dev/null +++ b/src/VBox/Runtime/r0drv/solaris/memobj-r0drv-solaris.h @@ -0,0 +1,336 @@ +/* $Id: memobj-r0drv-solaris.h $ */ +/** @file + * IPRT - Ring-0 Memory Objects - Segment driver, Solaris. + */ + +/* + * Copyright (C) 2012-2023 Oracle and/or its affiliates. + * + * This file is part of VirtualBox base platform packages, as + * available from https://www.virtualbox.org. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation, in version 3 of the + * License. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, see <https://www.gnu.org/licenses>. + * + * The contents of this file may alternatively be used under the terms + * of the Common Development and Distribution License Version 1.0 + * (CDDL), a copy of it is provided in the "COPYING.CDDL" file included + * in the VirtualBox distribution, in which case the provisions of the + * CDDL are applicable instead of those of the GPL. + * + * You may elect to license modified versions of this file under the + * terms and conditions of either the GPL or the CDDL or both. + * + * SPDX-License-Identifier: GPL-3.0-only OR CDDL-1.0 + */ + +#ifndef IPRT_INCLUDED_SRC_r0drv_solaris_memobj_r0drv_solaris_h +#define IPRT_INCLUDED_SRC_r0drv_solaris_memobj_r0drv_solaris_h +#ifndef RT_WITHOUT_PRAGMA_ONCE +# pragma once +#endif + +/******************************************************************************* +* Header Files * +*******************************************************************************/ +#include "the-solaris-kernel.h" + + +/******************************************************************************* +* Structures and Typedefs * +*******************************************************************************/ +typedef struct SEGVBOX_CRARGS +{ + uint64_t *paPhysAddrs; + size_t cbPageSize; + uint_t fPageAccess; +} SEGVBOX_CRARGS; +typedef SEGVBOX_CRARGS *PSEGVBOX_CRARGS; + +typedef struct SEGVBOX_DATA +{ + uint_t fPageAccess; + size_t cbPageSize; +} SEGVBOX_DATA; +typedef SEGVBOX_DATA *PSEGVBOX_DATA; + +static struct seg_ops s_SegVBoxOps; +static vnode_t s_segVBoxVnode; + + +DECLINLINE(int) rtR0SegVBoxSolCreate(seg_t *pSeg, void *pvArgs) +{ + struct as *pAddrSpace = pSeg->s_as; + PSEGVBOX_CRARGS pArgs = pvArgs; + PSEGVBOX_DATA pData = kmem_zalloc(sizeof(*pData), KM_SLEEP); + + AssertPtr(pAddrSpace); + AssertPtr(pArgs); + AssertPtr(pData); + + /* + * Currently we only map _4K pages but this segment driver can handle any size + * supported by the Solaris HAT layer. + */ + size_t cbPageSize = pArgs->cbPageSize; + size_t uPageShift = 0; + switch (cbPageSize) + { + case _4K: uPageShift = 12; break; + case _2M: uPageShift = 21; break; + default: AssertReleaseMsgFailed(("Unsupported page size for mapping cbPageSize=%llx\n", cbPageSize)); break; + } + + hat_map(pAddrSpace->a_hat, pSeg->s_base, pSeg->s_size, HAT_MAP); + pData->fPageAccess = pArgs->fPageAccess | PROT_USER; + pData->cbPageSize = cbPageSize; + + pSeg->s_ops = &s_SegVBoxOps; + pSeg->s_data = pData; + + /* + * Now load and lock down the mappings to the physical addresses. + */ + caddr_t virtAddr = pSeg->s_base; + pgcnt_t cPages = (pSeg->s_size + cbPageSize - 1) >> uPageShift; + for (pgcnt_t iPage = 0; iPage < cPages; ++iPage, virtAddr += cbPageSize) + { + hat_devload(pAddrSpace->a_hat, virtAddr, cbPageSize, pArgs->paPhysAddrs[iPage] >> uPageShift, + pData->fPageAccess | HAT_UNORDERED_OK, HAT_LOAD_LOCK); + } + + return 0; +} + + +static int rtR0SegVBoxSolDup(seg_t *pSrcSeg, seg_t *pDstSeg) +{ + /* + * Duplicate a segment and return the new segment in 'pDstSeg'. + */ + PSEGVBOX_DATA pSrcData = pSrcSeg->s_data; + PSEGVBOX_DATA pDstData = kmem_zalloc(sizeof(*pDstData), KM_SLEEP); + + AssertPtr(pDstData); + AssertPtr(pSrcData); + + pDstData->fPageAccess = pSrcData->fPageAccess; + pDstData->cbPageSize = pSrcData->cbPageSize; + pDstSeg->s_ops = &s_SegVBoxOps; + pDstSeg->s_data = pDstData; + + return 0; +} + + +static int rtR0SegVBoxSolUnmap(seg_t *pSeg, caddr_t virtAddr, size_t cb) +{ + PSEGVBOX_DATA pData = pSeg->s_data; + + AssertRelease(pData); + AssertReleaseMsg(virtAddr >= pSeg->s_base, ("virtAddr=%p s_base=%p\n", virtAddr, pSeg->s_base)); + AssertReleaseMsg(virtAddr + cb <= pSeg->s_base + pSeg->s_size, ("virtAddr=%p cb=%llu s_base=%p s_size=%llu\n", virtAddr, + cb, pSeg->s_base, pSeg->s_size)); + size_t cbPageOffset = pData->cbPageSize - 1; + AssertRelease(!(cb & cbPageOffset)); + AssertRelease(!((uintptr_t)virtAddr & cbPageOffset)); + + if ( virtAddr != pSeg->s_base + || cb != pSeg->s_size) + { + return ENOTSUP; + } + + hat_unload(pSeg->s_as->a_hat, virtAddr, cb, HAT_UNLOAD_UNMAP | HAT_UNLOAD_UNLOCK); + + seg_free(pSeg); + return 0; +} + + +static void rtR0SegVBoxSolFree(seg_t *pSeg) +{ + PSEGVBOX_DATA pData = pSeg->s_data; + kmem_free(pData, sizeof(*pData)); +} + + +static int rtR0SegVBoxSolFault(struct hat *pHat, seg_t *pSeg, caddr_t virtAddr, size_t cb, enum fault_type FaultType, + enum seg_rw ReadWrite) +{ + /* + * We would demand fault if the (u)read() path would SEGOP_FAULT() on buffers mapped in via our + * segment driver i.e. prefaults before DMA. Don't fail in such case where we're called directly, + * see @bugref{5047}. + */ + return 0; +} + + +static int rtR0SegVBoxSolFaultA(seg_t *pSeg, caddr_t virtAddr) +{ + return 0; +} + + +static int rtR0SegVBoxSolSetProt(seg_t *pSeg, caddr_t virtAddr, size_t cb, uint_t fPageAccess) +{ + return EACCES; +} + + +static int rtR0SegVBoxSolCheckProt(seg_t *pSeg, caddr_t virtAddr, size_t cb, uint_t fPageAccess) +{ + return EINVAL; +} + + +static int rtR0SegVBoxSolKluster(seg_t *pSeg, caddr_t virtAddr, ssize_t Delta) +{ + return -1; +} + + +static int rtR0SegVBoxSolSync(seg_t *pSeg, caddr_t virtAddr, size_t cb, int Attr, uint_t fFlags) +{ + return 0; +} + + +static size_t rtR0SegVBoxSolInCore(seg_t *pSeg, caddr_t virtAddr, size_t cb, char *pVec) +{ + PSEGVBOX_DATA pData = pSeg->s_data; + AssertRelease(pData); + size_t uPageOffset = pData->cbPageSize - 1; + size_t uPageMask = ~uPageOffset; + size_t cbLen = (cb + uPageOffset) & uPageMask; + for (virtAddr = 0; cbLen != 0; cbLen -= pData->cbPageSize, virtAddr += pData->cbPageSize) + *pVec++ = 1; + return cbLen; +} + + +static int rtR0SegVBoxSolLockOp(seg_t *pSeg, caddr_t virtAddr, size_t cb, int Attr, int Op, ulong_t *pLockMap, size_t off) +{ + return 0; +} + + +static int rtR0SegVBoxSolGetProt(seg_t *pSeg, caddr_t virtAddr, size_t cb, uint_t *pafPageAccess) +{ + PSEGVBOX_DATA pData = pSeg->s_data; + size_t iPage = seg_page(pSeg, virtAddr + cb) - seg_page(pSeg, virtAddr) + 1; + if (iPage) + { + do + { + iPage--; + pafPageAccess[iPage] = pData->fPageAccess; + } while (iPage); + } + return 0; +} + + +static u_offset_t rtR0SegVBoxSolGetOffset(seg_t *pSeg, caddr_t virtAddr) +{ + return ((uintptr_t)virtAddr - (uintptr_t)pSeg->s_base); +} + + +static int rtR0SegVBoxSolGetType(seg_t *pSeg, caddr_t virtAddr) +{ + return MAP_SHARED; +} + + +static int rtR0SegVBoxSolGetVp(seg_t *pSeg, caddr_t virtAddr, vnode_t **ppVnode) +{ + *ppVnode = &s_segVBoxVnode; + return 0; +} + + +static int rtR0SegVBoxSolAdvise(seg_t *pSeg, caddr_t virtAddr, size_t cb, uint_t Behav /* wut? */) +{ + return 0; +} + + +#if defined(VBOX_NEW_CRASH_DUMP_FORMAT) +static void rtR0SegVBoxSolDump(seg_t *pSeg, dump_addpage_f Func) +#else +static void rtR0SegVBoxSolDump(seg_t *pSeg) +#endif +{ + /* Nothing to do. */ +} + + +static int rtR0SegVBoxSolPageLock(seg_t *pSeg, caddr_t virtAddr, size_t cb, page_t ***pppPage, enum lock_type LockType, enum seg_rw ReadWrite) +{ + return ENOTSUP; +} + + +static int rtR0SegVBoxSolSetPageSize(seg_t *pSeg, caddr_t virtAddr, size_t cb, uint_t SizeCode) +{ + return ENOTSUP; +} + + +static int rtR0SegVBoxSolGetMemId(seg_t *pSeg, caddr_t virtAddr, memid_t *pMemId) +{ + return ENODEV; +} + + +#ifdef SEGOP_CAPABLE +static int rtR0SegVBoxSolCapable(seg_t *pSeg, segcapability_t Capab) +{ + return 0; +} +#endif + + +static struct seg_ops s_SegVBoxOps = +{ + rtR0SegVBoxSolDup, + rtR0SegVBoxSolUnmap, + rtR0SegVBoxSolFree, + rtR0SegVBoxSolFault, + rtR0SegVBoxSolFaultA, + rtR0SegVBoxSolSetProt, + rtR0SegVBoxSolCheckProt, + rtR0SegVBoxSolKluster, + NULL, /* swapout */ + rtR0SegVBoxSolSync, + rtR0SegVBoxSolInCore, + rtR0SegVBoxSolLockOp, + rtR0SegVBoxSolGetProt, + rtR0SegVBoxSolGetOffset, + rtR0SegVBoxSolGetType, + rtR0SegVBoxSolGetVp, + rtR0SegVBoxSolAdvise, + rtR0SegVBoxSolDump, + rtR0SegVBoxSolPageLock, + rtR0SegVBoxSolSetPageSize, + rtR0SegVBoxSolGetMemId, + NULL, /* getpolicy() */ +#ifdef SEGOP_CAPABLE + rtR0SegVBoxSolCapable +#endif +}; + +#endif /* !IPRT_INCLUDED_SRC_r0drv_solaris_memobj_r0drv_solaris_h */ + diff --git a/src/VBox/Runtime/r0drv/solaris/memuserkernel-r0drv-solaris.c b/src/VBox/Runtime/r0drv/solaris/memuserkernel-r0drv-solaris.c new file mode 100644 index 00000000..81278fd7 --- /dev/null +++ b/src/VBox/Runtime/r0drv/solaris/memuserkernel-r0drv-solaris.c @@ -0,0 +1,110 @@ +/* $Id: memuserkernel-r0drv-solaris.c $ */ +/** @file + * IPRT - User & Kernel Memory, Ring-0 Driver, Solaris. + */ + +/* + * Copyright (C) 2009-2023 Oracle and/or its affiliates. + * + * This file is part of VirtualBox base platform packages, as + * available from https://www.virtualbox.org. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation, in version 3 of the + * License. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, see <https://www.gnu.org/licenses>. + * + * The contents of this file may alternatively be used under the terms + * of the Common Development and Distribution License Version 1.0 + * (CDDL), a copy of it is provided in the "COPYING.CDDL" file included + * in the VirtualBox distribution, in which case the provisions of the + * CDDL are applicable instead of those of the GPL. + * + * You may elect to license modified versions of this file under the + * terms and conditions of either the GPL or the CDDL or both. + * + * SPDX-License-Identifier: GPL-3.0-only OR CDDL-1.0 + */ + + +/********************************************************************************************************************************* +* Header Files * +*********************************************************************************************************************************/ +#include "the-solaris-kernel.h" +#include "internal/iprt.h" +#include <iprt/mem.h> + +#if defined(RT_ARCH_AMD64) || defined(RT_ARCH_X86) +# include <iprt/asm-amd64-x86.h> +#endif +#include <iprt/assert.h> +#include <iprt/errcore.h> + + +RTR0DECL(int) RTR0MemUserCopyFrom(void *pvDst, RTR3PTR R3PtrSrc, size_t cb) +{ + int rc; + RT_ASSERT_INTS_ON(); + + rc = ddi_copyin((const char *)R3PtrSrc, pvDst, cb, 0 /*flags*/); + if (RT_LIKELY(rc == 0)) + return VINF_SUCCESS; + return VERR_ACCESS_DENIED; +} + + +RTR0DECL(int) RTR0MemUserCopyTo(RTR3PTR R3PtrDst, void const *pvSrc, size_t cb) +{ + int rc; + RT_ASSERT_INTS_ON(); + + rc = ddi_copyout(pvSrc, (void *)R3PtrDst, cb, 0 /*flags*/); + if (RT_LIKELY(rc == 0)) + return VINF_SUCCESS; + return VERR_ACCESS_DENIED; +} + + +RTR0DECL(bool) RTR0MemUserIsValidAddr(RTR3PTR R3Ptr) +{ + return R3Ptr < kernelbase; +} + + +RTR0DECL(bool) RTR0MemKernelIsValidAddr(void *pv) +{ + return (uintptr_t)pv >= kernelbase; +} + + +RTR0DECL(bool) RTR0MemAreKrnlAndUsrDifferent(void) +{ + return true; +} + + +RTR0DECL(int) RTR0MemKernelCopyFrom(void *pvDst, void const *pvSrc, size_t cb) +{ + int rc = kcopy(pvSrc, pvDst, cb); + if (RT_LIKELY(rc == 0)) + return VINF_SUCCESS; + return VERR_ACCESS_DENIED; +} + + +RTR0DECL(int) RTR0MemKernelCopyTo(void *pvDst, void const *pvSrc, size_t cb) +{ + int rc = kcopy(pvSrc, pvDst, cb); + if (RT_LIKELY(rc == 0)) + return VINF_SUCCESS; + return VERR_ACCESS_DENIED; +} + diff --git a/src/VBox/Runtime/r0drv/solaris/modulestub-r0drv-solaris.c b/src/VBox/Runtime/r0drv/solaris/modulestub-r0drv-solaris.c new file mode 100644 index 00000000..0e053c47 --- /dev/null +++ b/src/VBox/Runtime/r0drv/solaris/modulestub-r0drv-solaris.c @@ -0,0 +1,89 @@ +/* $Id: modulestub-r0drv-solaris.c $ */ +/** @file + * IPRT - Ring-0 Solaris stubs + */ + +/* + * Copyright (C) 2011-2023 Oracle and/or its affiliates. + * + * This file is part of VirtualBox base platform packages, as + * available from https://www.virtualbox.org. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation, in version 3 of the + * License. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, see <https://www.gnu.org/licenses>. + * + * The contents of this file may alternatively be used under the terms + * of the Common Development and Distribution License Version 1.0 + * (CDDL), a copy of it is provided in the "COPYING.CDDL" file included + * in the VirtualBox distribution, in which case the provisions of the + * CDDL are applicable instead of those of the GPL. + * + * You may elect to license modified versions of this file under the + * terms and conditions of either the GPL or the CDDL or both. + * + * SPDX-License-Identifier: GPL-3.0-only OR CDDL-1.0 + */ + + +/********************************************************************************************************************************* +* Header Files * +*********************************************************************************************************************************/ +#include <sys/modctl.h> + + +/********************************************************************************************************************************* +* Global Variables * +*********************************************************************************************************************************/ +static struct modlmisc g_rtModuleStubMisc = +{ + &mod_miscops, /* extern from kernel */ + "platform agnostic module" +}; + + +static struct modlinkage g_rtModuleStubModLinkage = +{ + MODREV_1, /* loadable module system revision */ + { + &g_rtModuleStubMisc, + NULL /* terminate array of linkage structures */ + } +}; + + + +int _init(void); +int _init(void) +{ + /* Disable auto unloading. */ + modctl_t *pModCtl = mod_getctl(&g_rtModuleStubModLinkage); + if (pModCtl) + pModCtl->mod_loadflags |= MOD_NOAUTOUNLOAD; + + return mod_install(&g_rtModuleStubModLinkage); +} + + +int _fini(void); +int _fini(void) +{ + return mod_remove(&g_rtModuleStubModLinkage); +} + + +int _info(struct modinfo *pModInfo); +int _info(struct modinfo *pModInfo) +{ + return mod_info(&g_rtModuleStubModLinkage, pModInfo); +} + diff --git a/src/VBox/Runtime/r0drv/solaris/mp-r0drv-solaris.c b/src/VBox/Runtime/r0drv/solaris/mp-r0drv-solaris.c new file mode 100644 index 00000000..0f4f63e5 --- /dev/null +++ b/src/VBox/Runtime/r0drv/solaris/mp-r0drv-solaris.c @@ -0,0 +1,460 @@ +/* $Id: mp-r0drv-solaris.c $ */ +/** @file + * IPRT - Multiprocessor, Ring-0 Driver, Solaris. + */ + +/* + * Copyright (C) 2008-2023 Oracle and/or its affiliates. + * + * This file is part of VirtualBox base platform packages, as + * available from https://www.virtualbox.org. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation, in version 3 of the + * License. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, see <https://www.gnu.org/licenses>. + * + * The contents of this file may alternatively be used under the terms + * of the Common Development and Distribution License Version 1.0 + * (CDDL), a copy of it is provided in the "COPYING.CDDL" file included + * in the VirtualBox distribution, in which case the provisions of the + * CDDL are applicable instead of those of the GPL. + * + * You may elect to license modified versions of this file under the + * terms and conditions of either the GPL or the CDDL or both. + * + * SPDX-License-Identifier: GPL-3.0-only OR CDDL-1.0 + */ + + +/********************************************************************************************************************************* +* Header Files * +*********************************************************************************************************************************/ +#include "the-solaris-kernel.h" +#include "internal/iprt.h" +#include <iprt/mp.h> +#include <iprt/cpuset.h> +#include <iprt/thread.h> + +#include <iprt/asm.h> +#if defined(RT_ARCH_AMD64) || defined(RT_ARCH_X86) +# include <iprt/asm-amd64-x86.h> +#endif +#include <iprt/err.h> +#include "r0drv/mp-r0drv.h" + +typedef int FNRTMPSOLWORKER(void *pvUser1, void *pvUser2, void *pvUser3); +typedef FNRTMPSOLWORKER *PFNRTMPSOLWORKER; + + +RTDECL(bool) RTMpIsCpuWorkPending(void) +{ + return false; +} + + +RTDECL(RTCPUID) RTMpCpuId(void) +{ + return CPU->cpu_id; +} + + +RTDECL(int) RTMpCurSetIndex(void) +{ + return CPU->cpu_id; +} + + +RTDECL(int) RTMpCurSetIndexAndId(PRTCPUID pidCpu) +{ + return *pidCpu = CPU->cpu_id; +} + + +RTDECL(int) RTMpCpuIdToSetIndex(RTCPUID idCpu) +{ + return idCpu < RTCPUSET_MAX_CPUS && idCpu <= max_cpuid ? idCpu : -1; +} + + +RTDECL(RTCPUID) RTMpCpuIdFromSetIndex(int iCpu) +{ + return (unsigned)iCpu <= max_cpuid ? iCpu : NIL_RTCPUID; +} + + +RTDECL(RTCPUID) RTMpGetMaxCpuId(void) +{ + return max_cpuid; +} + + +RTDECL(bool) RTMpIsCpuOnline(RTCPUID idCpu) +{ + /* + * We cannot query CPU status recursively, check cpu member from cached set. + */ + if (idCpu >= ncpus) + return false; + + return RTCpuSetIsMember(&g_rtMpSolCpuSet, idCpu); +} + + +RTDECL(bool) RTMpIsCpuPossible(RTCPUID idCpu) +{ + return idCpu < ncpus; +} + + +RTDECL(PRTCPUSET) RTMpGetSet(PRTCPUSET pSet) +{ + RTCPUID idCpu; + + RTCpuSetEmpty(pSet); + idCpu = RTMpGetMaxCpuId(); /* it's inclusive */ + do + { + if (RTMpIsCpuPossible(idCpu)) + RTCpuSetAdd(pSet, idCpu); + } while (idCpu-- > 0); + + return pSet; +} + + +RTDECL(RTCPUID) RTMpGetCount(void) +{ + return ncpus; +} + + +RTDECL(PRTCPUSET) RTMpGetOnlineSet(PRTCPUSET pSet) +{ + /* + * We cannot query CPU status recursively, return the cached set. + */ + *pSet = g_rtMpSolCpuSet; + return pSet; +} + + +RTDECL(RTCPUID) RTMpGetOnlineCount(void) +{ + RTCPUSET Set; + RTMpGetOnlineSet(&Set); + return RTCpuSetCount(&Set); +} + + +/** + * Wrapper to Solaris IPI infrastructure. + * + * @returns Solaris error code. + * @param pCpuSet Pointer to Solaris CPU set. + * @param pfnSolWorker Function to execute on target CPU(s). + * @param pArgs Pointer to RTMPARGS to pass to @a pfnSolWorker. + */ +static void rtMpSolCrossCall(PRTSOLCPUSET pCpuSet, PFNRTMPSOLWORKER pfnSolWorker, PRTMPARGS pArgs) +{ + AssertPtrReturnVoid(pCpuSet); + AssertPtrReturnVoid(pfnSolWorker); + AssertPtrReturnVoid(pCpuSet); + + if (g_frtSolOldIPI) + { + if (g_frtSolOldIPIUlong) + { + g_rtSolXcCall.u.pfnSol_xc_call_old_ulong((xc_arg_t)pArgs, /* Arg to IPI function */ + 0, /* Arg2, ignored */ + 0, /* Arg3, ignored */ + IPRT_SOL_X_CALL_HIPRI, /* IPI priority */ + pCpuSet->auCpus[0], /* Target CPU(s) */ + (xc_func_t)pfnSolWorker); /* Function to execute on target(s) */ + } + else + { + g_rtSolXcCall.u.pfnSol_xc_call_old((xc_arg_t)pArgs, /* Arg to IPI function */ + 0, /* Arg2, ignored */ + 0, /* Arg3, ignored */ + IPRT_SOL_X_CALL_HIPRI, /* IPI priority */ + *pCpuSet, /* Target CPU set */ + (xc_func_t)pfnSolWorker); /* Function to execute on target(s) */ + } + } + else + { + g_rtSolXcCall.u.pfnSol_xc_call((xc_arg_t)pArgs, /* Arg to IPI function */ + 0, /* Arg2 */ + 0, /* Arg3 */ + &pCpuSet->auCpus[0], /* Target CPU set */ + (xc_func_t)pfnSolWorker); /* Function to execute on target(s) */ + } +} + + +/** + * Wrapper between the native solaris per-cpu callback and PFNRTWORKER + * for the RTMpOnAll API. + * + * @returns Solaris error code. + * @param uArgs Pointer to the RTMPARGS package. + * @param pvIgnored1 Ignored. + * @param pvIgnored2 Ignored. + */ +static int rtMpSolOnAllCpuWrapper(void *uArg, void *pvIgnored1, void *pvIgnored2) +{ + PRTMPARGS pArgs = (PRTMPARGS)(uArg); + + /* + * Solaris CPU cross calls execute on offline CPUs too. Check our CPU cache + * set and ignore if it's offline. + */ + if (!RTMpIsCpuOnline(RTMpCpuId())) + return 0; + + pArgs->pfnWorker(RTMpCpuId(), pArgs->pvUser1, pArgs->pvUser2); + + NOREF(pvIgnored1); + NOREF(pvIgnored2); + return 0; +} + + +RTDECL(int) RTMpOnAll(PFNRTMPWORKER pfnWorker, void *pvUser1, void *pvUser2) +{ + RTMPARGS Args; + RTSOLCPUSET CpuSet; + RTTHREADPREEMPTSTATE PreemptState = RTTHREADPREEMPTSTATE_INITIALIZER; + RT_ASSERT_INTS_ON(); + + Args.pfnWorker = pfnWorker; + Args.pvUser1 = pvUser1; + Args.pvUser2 = pvUser2; + Args.idCpu = NIL_RTCPUID; + Args.cHits = 0; + + for (int i = 0; i < IPRT_SOL_SET_WORDS; i++) + CpuSet.auCpus[i] = (ulong_t)-1L; + + RTThreadPreemptDisable(&PreemptState); + + rtMpSolCrossCall(&CpuSet, rtMpSolOnAllCpuWrapper, &Args); + + RTThreadPreemptRestore(&PreemptState); + + return VINF_SUCCESS; +} + + +/** + * Wrapper between the native solaris per-cpu callback and PFNRTWORKER + * for the RTMpOnOthers API. + * + * @returns Solaris error code. + * @param uArgs Pointer to the RTMPARGS package. + * @param pvIgnored1 Ignored. + * @param pvIgnored2 Ignored. + */ +static int rtMpSolOnOtherCpusWrapper(void *uArg, void *pvIgnored1, void *pvIgnored2) +{ + PRTMPARGS pArgs = (PRTMPARGS)(uArg); + RTCPUID idCpu = RTMpCpuId(); + + Assert(idCpu != pArgs->idCpu); + pArgs->pfnWorker(idCpu, pArgs->pvUser1, pArgs->pvUser2); + + NOREF(pvIgnored1); + NOREF(pvIgnored2); + return 0; +} + + +RTDECL(int) RTMpOnOthers(PFNRTMPWORKER pfnWorker, void *pvUser1, void *pvUser2) +{ + RTMPARGS Args; + RTSOLCPUSET CpuSet; + RTTHREADPREEMPTSTATE PreemptState = RTTHREADPREEMPTSTATE_INITIALIZER; + RT_ASSERT_INTS_ON(); + + Args.pfnWorker = pfnWorker; + Args.pvUser1 = pvUser1; + Args.pvUser2 = pvUser2; + Args.idCpu = RTMpCpuId(); + Args.cHits = 0; + + /* The caller is supposed to have disabled preemption, but take no chances. */ + RTThreadPreemptDisable(&PreemptState); + + for (int i = 0; i < IPRT_SOL_SET_WORDS; i++) + CpuSet.auCpus[0] = (ulong_t)-1L; + BT_CLEAR(CpuSet.auCpus, RTMpCpuId()); + + rtMpSolCrossCall(&CpuSet, rtMpSolOnOtherCpusWrapper, &Args); + + RTThreadPreemptRestore(&PreemptState); + + return VINF_SUCCESS; +} + + + +/** + * Wrapper between the native solaris per-cpu callback and PFNRTWORKER + * for the RTMpOnPair API. + * + * @returns Solaris error code. + * @param uArgs Pointer to the RTMPARGS package. + * @param pvIgnored1 Ignored. + * @param pvIgnored2 Ignored. + */ +static int rtMpSolOnPairCpuWrapper(void *uArg, void *pvIgnored1, void *pvIgnored2) +{ + PRTMPARGS pArgs = (PRTMPARGS)(uArg); + RTCPUID idCpu = RTMpCpuId(); + + Assert(idCpu == pArgs->idCpu || idCpu == pArgs->idCpu2); + pArgs->pfnWorker(idCpu, pArgs->pvUser1, pArgs->pvUser2); + ASMAtomicIncU32(&pArgs->cHits); + + NOREF(pvIgnored1); + NOREF(pvIgnored2); + return 0; +} + + +RTDECL(int) RTMpOnPair(RTCPUID idCpu1, RTCPUID idCpu2, uint32_t fFlags, PFNRTMPWORKER pfnWorker, void *pvUser1, void *pvUser2) +{ + int rc; + RTMPARGS Args; + RTSOLCPUSET CpuSet; + RTTHREADPREEMPTSTATE PreemptState = RTTHREADPREEMPTSTATE_INITIALIZER; + + AssertReturn(idCpu1 != idCpu2, VERR_INVALID_PARAMETER); + AssertReturn(!(fFlags & RTMPON_F_VALID_MASK), VERR_INVALID_FLAGS); + + Args.pfnWorker = pfnWorker; + Args.pvUser1 = pvUser1; + Args.pvUser2 = pvUser2; + Args.idCpu = idCpu1; + Args.idCpu2 = idCpu2; + Args.cHits = 0; + + for (int i = 0; i < IPRT_SOL_SET_WORDS; i++) + CpuSet.auCpus[i] = 0; + BT_SET(CpuSet.auCpus, idCpu1); + BT_SET(CpuSet.auCpus, idCpu2); + + /* + * Check that both CPUs are online before doing the broadcast call. + */ + RTThreadPreemptDisable(&PreemptState); + if ( RTMpIsCpuOnline(idCpu1) + && RTMpIsCpuOnline(idCpu2)) + { + rtMpSolCrossCall(&CpuSet, rtMpSolOnPairCpuWrapper, &Args); + + Assert(Args.cHits <= 2); + if (Args.cHits == 2) + rc = VINF_SUCCESS; + else if (Args.cHits == 1) + rc = VERR_NOT_ALL_CPUS_SHOWED; + else if (Args.cHits == 0) + rc = VERR_CPU_OFFLINE; + else + rc = VERR_CPU_IPE_1; + } + /* + * A CPU must be present to be considered just offline. + */ + else if ( RTMpIsCpuPresent(idCpu1) + && RTMpIsCpuPresent(idCpu2)) + rc = VERR_CPU_OFFLINE; + else + rc = VERR_CPU_NOT_FOUND; + + RTThreadPreemptRestore(&PreemptState); + return rc; +} + + +RTDECL(bool) RTMpOnPairIsConcurrentExecSupported(void) +{ + return true; +} + + +/** + * Wrapper between the native solaris per-cpu callback and PFNRTWORKER + * for the RTMpOnSpecific API. + * + * @returns Solaris error code. + * @param uArgs Pointer to the RTMPARGS package. + * @param pvIgnored1 Ignored. + * @param pvIgnored2 Ignored. + */ +static int rtMpSolOnSpecificCpuWrapper(void *uArg, void *pvIgnored1, void *pvIgnored2) +{ + PRTMPARGS pArgs = (PRTMPARGS)(uArg); + RTCPUID idCpu = RTMpCpuId(); + + Assert(idCpu == pArgs->idCpu); + pArgs->pfnWorker(idCpu, pArgs->pvUser1, pArgs->pvUser2); + ASMAtomicIncU32(&pArgs->cHits); + + NOREF(pvIgnored1); + NOREF(pvIgnored2); + return 0; +} + + +RTDECL(int) RTMpOnSpecific(RTCPUID idCpu, PFNRTMPWORKER pfnWorker, void *pvUser1, void *pvUser2) +{ + RTMPARGS Args; + RTSOLCPUSET CpuSet; + RTTHREADPREEMPTSTATE PreemptState = RTTHREADPREEMPTSTATE_INITIALIZER; + RT_ASSERT_INTS_ON(); + + if (idCpu >= ncpus) + return VERR_CPU_NOT_FOUND; + + if (RT_UNLIKELY(!RTMpIsCpuOnline(idCpu))) + return RTMpIsCpuPresent(idCpu) ? VERR_CPU_OFFLINE : VERR_CPU_NOT_FOUND; + + Args.pfnWorker = pfnWorker; + Args.pvUser1 = pvUser1; + Args.pvUser2 = pvUser2; + Args.idCpu = idCpu; + Args.cHits = 0; + + for (int i = 0; i < IPRT_SOL_SET_WORDS; i++) + CpuSet.auCpus[i] = 0; + BT_SET(CpuSet.auCpus, idCpu); + + RTThreadPreemptDisable(&PreemptState); + + rtMpSolCrossCall(&CpuSet, rtMpSolOnSpecificCpuWrapper, &Args); + + RTThreadPreemptRestore(&PreemptState); + + Assert(ASMAtomicUoReadU32(&Args.cHits) <= 1); + + return ASMAtomicUoReadU32(&Args.cHits) == 1 + ? VINF_SUCCESS + : VERR_CPU_NOT_FOUND; +} + + +RTDECL(bool) RTMpOnAllIsConcurrentSafe(void) +{ + return true; +} + diff --git a/src/VBox/Runtime/r0drv/solaris/mpnotification-r0drv-solaris.c b/src/VBox/Runtime/r0drv/solaris/mpnotification-r0drv-solaris.c new file mode 100644 index 00000000..983b5790 --- /dev/null +++ b/src/VBox/Runtime/r0drv/solaris/mpnotification-r0drv-solaris.c @@ -0,0 +1,149 @@ +/* $Id: mpnotification-r0drv-solaris.c $ */ +/** @file + * IPRT - Multiprocessor Event Notifications, Ring-0 Driver, Solaris. + */ + +/* + * Copyright (C) 2008-2023 Oracle and/or its affiliates. + * + * This file is part of VirtualBox base platform packages, as + * available from https://www.virtualbox.org. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation, in version 3 of the + * License. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, see <https://www.gnu.org/licenses>. + * + * The contents of this file may alternatively be used under the terms + * of the Common Development and Distribution License Version 1.0 + * (CDDL), a copy of it is provided in the "COPYING.CDDL" file included + * in the VirtualBox distribution, in which case the provisions of the + * CDDL are applicable instead of those of the GPL. + * + * You may elect to license modified versions of this file under the + * terms and conditions of either the GPL or the CDDL or both. + * + * SPDX-License-Identifier: GPL-3.0-only OR CDDL-1.0 + */ + + +/********************************************************************************************************************************* +* Header Files * +*********************************************************************************************************************************/ +#include "the-solaris-kernel.h" +#include "internal/iprt.h" + +#include <iprt/errcore.h> +#include <iprt/mp.h> +#include <iprt/cpuset.h> +#include <iprt/string.h> +#include <iprt/thread.h> +#include "r0drv/mp-r0drv.h" + + +/********************************************************************************************************************************* +* Global Variables * +*********************************************************************************************************************************/ +/** Whether CPUs are being watched or not. */ +static volatile bool g_fSolCpuWatch = false; +/** Set of online cpus that is maintained by the MP callback. + * This avoids locking issues querying the set from the kernel as well as + * eliminating any uncertainty regarding the online status during the + * callback. */ +RTCPUSET g_rtMpSolCpuSet; + +/** + * Internal solaris representation for watching CPUs. + */ +typedef struct RTMPSOLWATCHCPUS +{ + /** Function pointer to Mp worker. */ + PFNRTMPWORKER pfnWorker; + /** Argument to pass to the Mp worker. */ + void *pvArg; +} RTMPSOLWATCHCPUS; +typedef RTMPSOLWATCHCPUS *PRTMPSOLWATCHCPUS; + + +/** + * Solaris callback function for Mp event notification. + * + * @returns Solaris error code. + * @param CpuState The current event/state of the CPU. + * @param iCpu Which CPU is this event for. + * @param pvArg Ignored. + * + * @remarks This function assumes index == RTCPUID. + * We may -not- be firing on the CPU going online/offline and called + * with preemption enabled. + */ +static int rtMpNotificationCpuEvent(cpu_setup_t CpuState, int iCpu, void *pvArg) +{ + RTMPEVENT enmMpEvent; + + /* + * Update our CPU set structures first regardless of whether we've been + * scheduled on the right CPU or not, this is just atomic accounting. + */ + if (CpuState == CPU_ON) + { + enmMpEvent = RTMPEVENT_ONLINE; + RTCpuSetAdd(&g_rtMpSolCpuSet, iCpu); + } + else if (CpuState == CPU_OFF) + { + enmMpEvent = RTMPEVENT_OFFLINE; + RTCpuSetDel(&g_rtMpSolCpuSet, iCpu); + } + else + return 0; + + rtMpNotificationDoCallbacks(enmMpEvent, iCpu); + NOREF(pvArg); + return 0; +} + + +DECLHIDDEN(int) rtR0MpNotificationNativeInit(void) +{ + if (ASMAtomicReadBool(&g_fSolCpuWatch) == true) + return VERR_WRONG_ORDER; + + /* + * Register the callback building the online cpu set as we do so. + */ + RTCpuSetEmpty(&g_rtMpSolCpuSet); + + mutex_enter(&cpu_lock); + register_cpu_setup_func(rtMpNotificationCpuEvent, NULL /* pvArg */); + + for (int i = 0; i < (int)RTMpGetCount(); ++i) + if (cpu_is_online(cpu[i])) + rtMpNotificationCpuEvent(CPU_ON, i, NULL /* pvArg */); + + ASMAtomicWriteBool(&g_fSolCpuWatch, true); + mutex_exit(&cpu_lock); + + return VINF_SUCCESS; +} + + +DECLHIDDEN(void) rtR0MpNotificationNativeTerm(void) +{ + if (ASMAtomicReadBool(&g_fSolCpuWatch) == true) + { + mutex_enter(&cpu_lock); + unregister_cpu_setup_func(rtMpNotificationCpuEvent, NULL /* pvArg */); + ASMAtomicWriteBool(&g_fSolCpuWatch, false); + mutex_exit(&cpu_lock); + } +} + diff --git a/src/VBox/Runtime/r0drv/solaris/process-r0drv-solaris.c b/src/VBox/Runtime/r0drv/solaris/process-r0drv-solaris.c new file mode 100644 index 00000000..0d9be4d9 --- /dev/null +++ b/src/VBox/Runtime/r0drv/solaris/process-r0drv-solaris.c @@ -0,0 +1,59 @@ +/* $Id: process-r0drv-solaris.c $ */ +/** @file + * IPRT - Process Management, Ring-0 Driver, Solaris. + */ + +/* + * Copyright (C) 2006-2023 Oracle and/or its affiliates. + * + * This file is part of VirtualBox base platform packages, as + * available from https://www.virtualbox.org. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation, in version 3 of the + * License. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, see <https://www.gnu.org/licenses>. + * + * The contents of this file may alternatively be used under the terms + * of the Common Development and Distribution License Version 1.0 + * (CDDL), a copy of it is provided in the "COPYING.CDDL" file included + * in the VirtualBox distribution, in which case the provisions of the + * CDDL are applicable instead of those of the GPL. + * + * You may elect to license modified versions of this file under the + * terms and conditions of either the GPL or the CDDL or both. + * + * SPDX-License-Identifier: GPL-3.0-only OR CDDL-1.0 + */ + + +/********************************************************************************************************************************* +* Header Files * +*********************************************************************************************************************************/ +#include "the-solaris-kernel.h" +#include "internal/iprt.h" +#include <iprt/process.h> + + + +RTDECL(RTPROCESS) RTProcSelf(void) +{ + return ddi_get_pid(); +} + + +RTR0DECL(RTR0PROCESS) RTR0ProcHandleSelf(void) +{ + proc_t *pProcess = NULL; + drv_getparm(UPROCP, &pProcess); + return (RTR0PROCESS)pProcess; +} + diff --git a/src/VBox/Runtime/r0drv/solaris/semevent-r0drv-solaris.c b/src/VBox/Runtime/r0drv/solaris/semevent-r0drv-solaris.c new file mode 100644 index 00000000..0fab932b --- /dev/null +++ b/src/VBox/Runtime/r0drv/solaris/semevent-r0drv-solaris.c @@ -0,0 +1,364 @@ +/* $Id: semevent-r0drv-solaris.c $ */ +/** @file + * IPRT - Single Release Event Semaphores, Ring-0 Driver, Solaris. + */ + +/* + * Copyright (C) 2006-2023 Oracle and/or its affiliates. + * + * This file is part of VirtualBox base platform packages, as + * available from https://www.virtualbox.org. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation, in version 3 of the + * License. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, see <https://www.gnu.org/licenses>. + * + * The contents of this file may alternatively be used under the terms + * of the Common Development and Distribution License Version 1.0 + * (CDDL), a copy of it is provided in the "COPYING.CDDL" file included + * in the VirtualBox distribution, in which case the provisions of the + * CDDL are applicable instead of those of the GPL. + * + * You may elect to license modified versions of this file under the + * terms and conditions of either the GPL or the CDDL or both. + * + * SPDX-License-Identifier: GPL-3.0-only OR CDDL-1.0 + */ + + +/********************************************************************************************************************************* +* Header Files * +*********************************************************************************************************************************/ +#define RTSEMEVENT_WITHOUT_REMAPPING +#include "the-solaris-kernel.h" +#include "internal/iprt.h" +#include <iprt/semaphore.h> + +#include <iprt/assert.h> +#include <iprt/asm.h> +#if defined(RT_ARCH_AMD64) || defined(RT_ARCH_X86) +# include <iprt/asm-amd64-x86.h> +#endif +#include <iprt/err.h> +#include <iprt/list.h> +#include <iprt/lockvalidator.h> +#include <iprt/mem.h> +#include <iprt/mp.h> +#include <iprt/thread.h> +#include "internal/magics.h" +#include "semeventwait-r0drv-solaris.h" + + +/********************************************************************************************************************************* +* Structures and Typedefs * +*********************************************************************************************************************************/ +/** + * Waiter entry. Lives on the stack. + * + * @remarks Unfortunately, we cannot easily use cv_signal because we cannot + * distinguish between it and the spurious wakeups we get after fork. + * So, we keep an unprioritized FIFO with the sleeping threads. + */ +typedef struct RTSEMEVENTSOLENTRY +{ + /** The list node. */ + RTLISTNODE Node; + /** The thread. */ + kthread_t *pThread; + /** Set to @c true when waking up the thread by signal or destroy. */ + uint32_t volatile fWokenUp; +} RTSEMEVENTSOLENTRY; +/** Pointer to waiter entry. */ +typedef RTSEMEVENTSOLENTRY *PRTSEMEVENTSOLENTRY; + + +/** + * Solaris event semaphore. + */ +typedef struct RTSEMEVENTINTERNAL +{ + /** Magic value (RTSEMEVENT_MAGIC). */ + uint32_t volatile u32Magic; + /** The number of threads referencing this object. */ + uint32_t volatile cRefs; + /** Set if the object is signalled when there are no waiters. */ + bool fSignaled; + /** List of waiting and woken up threads. */ + RTLISTANCHOR WaitList; + /** The Solaris mutex protecting this structure and pairing up the with the cv. */ + kmutex_t Mtx; + /** The Solaris condition variable. */ + kcondvar_t Cnd; +} RTSEMEVENTINTERNAL, *PRTSEMEVENTINTERNAL; + + + +RTDECL(int) RTSemEventCreate(PRTSEMEVENT phEventSem) +{ + return RTSemEventCreateEx(phEventSem, 0 /*fFlags*/, NIL_RTLOCKVALCLASS, NULL); +} + + +RTDECL(int) RTSemEventCreateEx(PRTSEMEVENT phEventSem, uint32_t fFlags, RTLOCKVALCLASS hClass, const char *pszNameFmt, ...) +{ + AssertCompile(sizeof(RTSEMEVENTINTERNAL) > sizeof(void *)); + AssertReturn(!(fFlags & ~(RTSEMEVENT_FLAGS_NO_LOCK_VAL | RTSEMEVENT_FLAGS_BOOTSTRAP_HACK)), VERR_INVALID_PARAMETER); + Assert(!(fFlags & RTSEMEVENT_FLAGS_BOOTSTRAP_HACK) || (fFlags & RTSEMEVENT_FLAGS_NO_LOCK_VAL)); + AssertPtrReturn(phEventSem, VERR_INVALID_POINTER); + RT_ASSERT_PREEMPTIBLE(); + + PRTSEMEVENTINTERNAL pThis = (PRTSEMEVENTINTERNAL)RTMemAlloc(sizeof(*pThis)); + if (!pThis) + return VERR_NO_MEMORY; + + pThis->u32Magic = RTSEMEVENT_MAGIC; + pThis->cRefs = 1; + pThis->fSignaled = false; + RTListInit(&pThis->WaitList); + mutex_init(&pThis->Mtx, "IPRT Event Semaphore", MUTEX_DRIVER, (void *)ipltospl(DISP_LEVEL)); + cv_init(&pThis->Cnd, "IPRT CV", CV_DRIVER, NULL); + + *phEventSem = pThis; + return VINF_SUCCESS; +} + + +/** + * Retain a reference to the semaphore. + * + * @param pThis The semaphore. + */ +DECLINLINE(void) rtR0SemEventSolRetain(PRTSEMEVENTINTERNAL pThis) +{ + uint32_t cRefs = ASMAtomicIncU32(&pThis->cRefs); + Assert(cRefs && cRefs < 100000); + NOREF(cRefs); +} + + +/** + * The destruct. + * + * @param pThis The semaphore. + */ +static void rtR0SemEventSolDtor(PRTSEMEVENTINTERNAL pThis) +{ + Assert(pThis->u32Magic != RTSEMEVENT_MAGIC); + cv_destroy(&pThis->Cnd); + mutex_destroy(&pThis->Mtx); + RTMemFree(pThis); +} + + +/** + * Release a reference, destroy the thing if necessary. + * + * @param pThis The semaphore. + */ +DECLINLINE(void) rtR0SemEventSolRelease(PRTSEMEVENTINTERNAL pThis) +{ + if (RT_UNLIKELY(ASMAtomicDecU32(&pThis->cRefs) == 0)) + rtR0SemEventSolDtor(pThis); +} + + +RTDECL(int) RTSemEventDestroy(RTSEMEVENT hEventSem) +{ + /* + * Validate input. + */ + PRTSEMEVENTINTERNAL pThis = hEventSem; + if (pThis == NIL_RTSEMEVENT) + return VINF_SUCCESS; + AssertPtrReturn(pThis, VERR_INVALID_HANDLE); + AssertMsgReturn(pThis->u32Magic == RTSEMEVENT_MAGIC, ("u32Magic=%RX32 pThis=%p\n", pThis->u32Magic, pThis), VERR_INVALID_HANDLE); + Assert(pThis->cRefs > 0); + RT_ASSERT_INTS_ON(); + + mutex_enter(&pThis->Mtx); + + /* + * Invalidate the semaphore. + */ + ASMAtomicWriteU32(&pThis->u32Magic, ~RTSEMEVENT_MAGIC); + ASMAtomicWriteBool(&pThis->fSignaled, false); + + /* + * Abort and wake up all threads. + */ + PRTSEMEVENTSOLENTRY pWaiter; + RTListForEach(&pThis->WaitList, pWaiter, RTSEMEVENTSOLENTRY, Node) + { + pWaiter->fWokenUp = true; + } + cv_broadcast(&pThis->Cnd); + + /* + * Release the reference from RTSemEventCreateEx. + */ + mutex_exit(&pThis->Mtx); + rtR0SemEventSolRelease(pThis); + + return VINF_SUCCESS; +} + + +RTDECL(int) RTSemEventSignal(RTSEMEVENT hEventSem) +{ + PRTSEMEVENTINTERNAL pThis = (PRTSEMEVENTINTERNAL)hEventSem; + RT_ASSERT_PREEMPT_CPUID_VAR(); + AssertPtrReturn(pThis, VERR_INVALID_HANDLE); + AssertMsgReturn(pThis->u32Magic == RTSEMEVENT_MAGIC, ("u32Magic=%RX32 pThis=%p\n", pThis->u32Magic, pThis), VERR_INVALID_HANDLE); + RT_ASSERT_INTS_ON(); + + rtR0SemEventSolRetain(pThis); + rtR0SemSolWaitEnterMutexWithUnpinningHack(&pThis->Mtx); + + /* + * Wake up one thread. + */ + ASMAtomicWriteBool(&pThis->fSignaled, true); + + PRTSEMEVENTSOLENTRY pWaiter; + RTListForEach(&pThis->WaitList, pWaiter, RTSEMEVENTSOLENTRY, Node) + { + if (!pWaiter->fWokenUp) + { + pWaiter->fWokenUp = true; + setrun(pWaiter->pThread); + ASMAtomicWriteBool(&pThis->fSignaled, false); + break; + } + } + + mutex_exit(&pThis->Mtx); + rtR0SemEventSolRelease(pThis); + +#ifdef DEBUG_ramshankar + /** See @bugref{6318} comment#11 */ + return VINF_SUCCESS; +#endif + RT_ASSERT_PREEMPT_CPUID(); + return VINF_SUCCESS; +} + + +/** + * Worker for RTSemEventWaitEx and RTSemEventWaitExDebug. + * + * @returns VBox status code. + * @param pThis The event semaphore. + * @param fFlags See RTSemEventWaitEx. + * @param uTimeout See RTSemEventWaitEx. + * @param pSrcPos The source code position of the wait. + */ +static int rtR0SemEventSolWait(PRTSEMEVENTINTERNAL pThis, uint32_t fFlags, uint64_t uTimeout, + PCRTLOCKVALSRCPOS pSrcPos) +{ + /* + * Validate the input. + */ + AssertPtrReturn(pThis, VERR_INVALID_PARAMETER); + AssertMsgReturn(pThis->u32Magic == RTSEMEVENT_MAGIC, ("%p u32Magic=%RX32\n", pThis, pThis->u32Magic), VERR_INVALID_PARAMETER); + AssertReturn(RTSEMWAIT_FLAGS_ARE_VALID(fFlags), VERR_INVALID_PARAMETER); + + rtR0SemEventSolRetain(pThis); + mutex_enter(&pThis->Mtx); + + /* + * In the signaled state? + */ + int rc; + if (ASMAtomicCmpXchgBool(&pThis->fSignaled, false, true)) + rc = VINF_SUCCESS; + else + { + /* + * We have to wait. + */ + RTR0SEMSOLWAIT Wait; + rc = rtR0SemSolWaitInit(&Wait, fFlags, uTimeout); + if (RT_SUCCESS(rc)) + { + RTSEMEVENTSOLENTRY Waiter; /* ASSUMES we won't get swapped out while waiting (TS_DONT_SWAP). */ + Waiter.pThread = curthread; + Waiter.fWokenUp = false; + RTListAppend(&pThis->WaitList, &Waiter.Node); + + for (;;) + { + /* The destruction test. */ + if (RT_UNLIKELY(pThis->u32Magic != RTSEMEVENT_MAGIC)) + rc = VERR_SEM_DESTROYED; + else + { + /* Check the exit conditions. */ + if (RT_UNLIKELY(pThis->u32Magic != RTSEMEVENT_MAGIC)) + rc = VERR_SEM_DESTROYED; + else if (Waiter.fWokenUp) + rc = VINF_SUCCESS; + else if (rtR0SemSolWaitHasTimedOut(&Wait)) + rc = VERR_TIMEOUT; + else if (rtR0SemSolWaitWasInterrupted(&Wait)) + rc = VERR_INTERRUPTED; + else + { + /* Do the wait and then recheck the conditions. */ + rtR0SemSolWaitDoIt(&Wait, &pThis->Cnd, &pThis->Mtx, &Waiter.fWokenUp, false); + continue; + } + } + break; + } + + rtR0SemSolWaitDelete(&Wait); + RTListNodeRemove(&Waiter.Node); + } + } + + mutex_exit(&pThis->Mtx); + rtR0SemEventSolRelease(pThis); + return rc; +} + + +RTDECL(int) RTSemEventWaitEx(RTSEMEVENT hEventSem, uint32_t fFlags, uint64_t uTimeout) +{ +#ifndef RTSEMEVENT_STRICT + return rtR0SemEventSolWait(hEventSem, fFlags, uTimeout, NULL); +#else + RTLOCKVALSRCPOS SrcPos = RTLOCKVALSRCPOS_INIT_NORMAL_API(); + return rtR0SemEventSolWait(hEventSem, fFlags, uTimeout, &SrcPos); +#endif +} + + +RTDECL(int) RTSemEventWaitExDebug(RTSEMEVENT hEventSem, uint32_t fFlags, uint64_t uTimeout, + RTHCUINTPTR uId, RT_SRC_POS_DECL) +{ + RTLOCKVALSRCPOS SrcPos = RTLOCKVALSRCPOS_INIT_DEBUG_API(); + return rtR0SemEventSolWait(hEventSem, fFlags, uTimeout, &SrcPos); +} + + +RTDECL(uint32_t) RTSemEventGetResolution(void) +{ + return rtR0SemSolWaitGetResolution(); +} + + +RTR0DECL(bool) RTSemEventIsSignalSafe(void) +{ + /* I don't trust Solaris not to preempt us. */ + return false; +} + diff --git a/src/VBox/Runtime/r0drv/solaris/semeventmulti-r0drv-solaris.c b/src/VBox/Runtime/r0drv/solaris/semeventmulti-r0drv-solaris.c new file mode 100644 index 00000000..04692b61 --- /dev/null +++ b/src/VBox/Runtime/r0drv/solaris/semeventmulti-r0drv-solaris.c @@ -0,0 +1,372 @@ +/* $Id: semeventmulti-r0drv-solaris.c $ */ +/** @file + * IPRT - Multiple Release Event Semaphores, Ring-0 Driver, Solaris. + */ + +/* + * Copyright (C) 2006-2023 Oracle and/or its affiliates. + * + * This file is part of VirtualBox base platform packages, as + * available from https://www.virtualbox.org. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation, in version 3 of the + * License. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, see <https://www.gnu.org/licenses>. + * + * The contents of this file may alternatively be used under the terms + * of the Common Development and Distribution License Version 1.0 + * (CDDL), a copy of it is provided in the "COPYING.CDDL" file included + * in the VirtualBox distribution, in which case the provisions of the + * CDDL are applicable instead of those of the GPL. + * + * You may elect to license modified versions of this file under the + * terms and conditions of either the GPL or the CDDL or both. + * + * SPDX-License-Identifier: GPL-3.0-only OR CDDL-1.0 + */ + + +/********************************************************************************************************************************* +* Header Files * +*********************************************************************************************************************************/ +#define RTSEMEVENTMULTI_WITHOUT_REMAPPING +#include "the-solaris-kernel.h" +#include "internal/iprt.h" +#include <iprt/semaphore.h> + +#include <iprt/assert.h> +#include <iprt/asm.h> +#if defined(RT_ARCH_AMD64) || defined(RT_ARCH_X86) +# include <iprt/asm-amd64-x86.h> +#endif +#include <iprt/err.h> +#include <iprt/lockvalidator.h> +#include <iprt/mem.h> +#include <iprt/mp.h> +#include <iprt/thread.h> +#include <iprt/time.h> +#include "internal/magics.h" +#include "semeventwait-r0drv-solaris.h" + + +/********************************************************************************************************************************* +* Defined Constants And Macros * +*********************************************************************************************************************************/ +/** @name fStateAndGen values + * @{ */ +/** The state bit number. */ +#define RTSEMEVENTMULTISOL_STATE_BIT 0 +/** The state mask. */ +#define RTSEMEVENTMULTISOL_STATE_MASK RT_BIT_32(RTSEMEVENTMULTISOL_STATE_BIT) +/** The generation mask. */ +#define RTSEMEVENTMULTISOL_GEN_MASK ~RTSEMEVENTMULTISOL_STATE_MASK +/** The generation shift. */ +#define RTSEMEVENTMULTISOL_GEN_SHIFT 1 +/** The initial variable value. */ +#define RTSEMEVENTMULTISOL_STATE_GEN_INIT UINT32_C(0xfffffffc) +/** @} */ + + +/********************************************************************************************************************************* +* Structures and Typedefs * +*********************************************************************************************************************************/ +/** + * Solaris multiple release event semaphore. + */ +typedef struct RTSEMEVENTMULTIINTERNAL +{ + /** Magic value (RTSEMEVENTMULTI_MAGIC). */ + uint32_t volatile u32Magic; + /** The number of references. */ + uint32_t volatile cRefs; + /** The object state bit and generation counter. + * The generation counter is incremented every time the object is + * signalled. */ + uint32_t volatile fStateAndGen; + /** The Solaris mutex protecting this structure and pairing up the with the cv. */ + kmutex_t Mtx; + /** The Solaris condition variable. */ + kcondvar_t Cnd; +} RTSEMEVENTMULTIINTERNAL, *PRTSEMEVENTMULTIINTERNAL; + + + +RTDECL(int) RTSemEventMultiCreate(PRTSEMEVENTMULTI phEventMultiSem) +{ + return RTSemEventMultiCreateEx(phEventMultiSem, 0 /*fFlags*/, NIL_RTLOCKVALCLASS, NULL); +} + + +RTDECL(int) RTSemEventMultiCreateEx(PRTSEMEVENTMULTI phEventMultiSem, uint32_t fFlags, RTLOCKVALCLASS hClass, + const char *pszNameFmt, ...) +{ + AssertReturn(!(fFlags & ~RTSEMEVENTMULTI_FLAGS_NO_LOCK_VAL), VERR_INVALID_PARAMETER); + AssertPtrReturn(phEventMultiSem, VERR_INVALID_POINTER); + RT_ASSERT_PREEMPTIBLE(); + + AssertCompile(sizeof(RTSEMEVENTMULTIINTERNAL) > sizeof(void *)); + PRTSEMEVENTMULTIINTERNAL pThis = (PRTSEMEVENTMULTIINTERNAL)RTMemAlloc(sizeof(*pThis)); + if (pThis) + { + pThis->u32Magic = RTSEMEVENTMULTI_MAGIC; + pThis->cRefs = 1; + pThis->fStateAndGen = RTSEMEVENTMULTISOL_STATE_GEN_INIT; + mutex_init(&pThis->Mtx, "IPRT Multiple Release Event Semaphore", MUTEX_DRIVER, (void *)ipltospl(DISP_LEVEL)); + cv_init(&pThis->Cnd, "IPRT CV", CV_DRIVER, NULL); + + *phEventMultiSem = pThis; + return VINF_SUCCESS; + } + return VERR_NO_MEMORY; +} + + +/** + * Retain a reference to the semaphore. + * + * @param pThis The semaphore. + */ +DECLINLINE(void) rtR0SemEventMultiSolRetain(PRTSEMEVENTMULTIINTERNAL pThis) +{ + uint32_t cRefs = ASMAtomicIncU32(&pThis->cRefs); + Assert(cRefs && cRefs < 100000); + NOREF(cRefs); +} + + +/** + * Destructor that is called when cRefs == 0. + * + * @param pThis The instance to destroy. + */ +static void rtSemEventMultiDtor(PRTSEMEVENTMULTIINTERNAL pThis) +{ + Assert(pThis->u32Magic != RTSEMEVENTMULTI_MAGIC); + cv_destroy(&pThis->Cnd); + mutex_destroy(&pThis->Mtx); + RTMemFree(pThis); +} + + +/** + * Release a reference, destroy the thing if necessary. + * + * @param pThis The semaphore. + */ +DECLINLINE(void) rtR0SemEventMultiSolRelease(PRTSEMEVENTMULTIINTERNAL pThis) +{ + if (RT_UNLIKELY(ASMAtomicDecU32(&pThis->cRefs) == 0)) + rtSemEventMultiDtor(pThis); +} + + + +RTDECL(int) RTSemEventMultiDestroy(RTSEMEVENTMULTI hEventMultiSem) +{ + PRTSEMEVENTMULTIINTERNAL pThis = (PRTSEMEVENTMULTIINTERNAL)hEventMultiSem; + if (pThis == NIL_RTSEMEVENTMULTI) + return VINF_SUCCESS; + AssertPtrReturn(pThis, VERR_INVALID_HANDLE); + AssertMsgReturn(pThis->u32Magic == RTSEMEVENTMULTI_MAGIC, ("pThis=%p u32Magic=%#x\n", pThis, pThis->u32Magic), VERR_INVALID_HANDLE); + AssertMsgReturn(pThis->cRefs > 0, ("pThis=%p cRefs=%d\n", pThis, pThis->cRefs), VERR_INVALID_HANDLE); + RT_ASSERT_INTS_ON(); + + mutex_enter(&pThis->Mtx); + + /* Invalidate the handle and wake up all threads that might be waiting on the semaphore. */ + Assert(pThis->u32Magic == RTSEMEVENTMULTI_MAGIC); + ASMAtomicWriteU32(&pThis->u32Magic, RTSEMEVENTMULTI_MAGIC_DEAD); + ASMAtomicAndU32(&pThis->fStateAndGen, RTSEMEVENTMULTISOL_GEN_MASK); + cv_broadcast(&pThis->Cnd); + + /* Drop the reference from RTSemEventMultiCreateEx. */ + mutex_exit(&pThis->Mtx); + rtR0SemEventMultiSolRelease(pThis); + + return VINF_SUCCESS; +} + + +RTDECL(int) RTSemEventMultiSignal(RTSEMEVENTMULTI hEventMultiSem) +{ + PRTSEMEVENTMULTIINTERNAL pThis = (PRTSEMEVENTMULTIINTERNAL)hEventMultiSem; + RT_ASSERT_PREEMPT_CPUID_VAR(); + + AssertPtrReturn(pThis, VERR_INVALID_HANDLE); + AssertMsgReturn(pThis->u32Magic == RTSEMEVENTMULTI_MAGIC, + ("pThis=%p u32Magic=%#x\n", pThis, pThis->u32Magic), + VERR_INVALID_HANDLE); + RT_ASSERT_INTS_ON(); + rtR0SemEventMultiSolRetain(pThis); + rtR0SemSolWaitEnterMutexWithUnpinningHack(&pThis->Mtx); + Assert(pThis->u32Magic == RTSEMEVENTMULTI_MAGIC); + + /* + * Do the job. + */ + uint32_t fNew = ASMAtomicUoReadU32(&pThis->fStateAndGen); + fNew += 1 << RTSEMEVENTMULTISOL_GEN_SHIFT; + fNew |= RTSEMEVENTMULTISOL_STATE_MASK; + ASMAtomicWriteU32(&pThis->fStateAndGen, fNew); + + cv_broadcast(&pThis->Cnd); + + mutex_exit(&pThis->Mtx); + + rtR0SemEventMultiSolRelease(pThis); +#ifdef DEBUG_ramshankar + /** See @bugref{6318#c11}. */ + return VINF_SUCCESS; +#endif + RT_ASSERT_PREEMPT_CPUID(); + return VINF_SUCCESS; +} + + +RTDECL(int) RTSemEventMultiReset(RTSEMEVENTMULTI hEventMultiSem) +{ + PRTSEMEVENTMULTIINTERNAL pThis = (PRTSEMEVENTMULTIINTERNAL)hEventMultiSem; + RT_ASSERT_PREEMPT_CPUID_VAR(); + + AssertPtrReturn(pThis, VERR_INVALID_HANDLE); + AssertMsgReturn(pThis->u32Magic == RTSEMEVENTMULTI_MAGIC, + ("pThis=%p u32Magic=%#x\n", pThis, pThis->u32Magic), + VERR_INVALID_HANDLE); + RT_ASSERT_INTS_ON(); + + rtR0SemEventMultiSolRetain(pThis); + rtR0SemSolWaitEnterMutexWithUnpinningHack(&pThis->Mtx); + Assert(pThis->u32Magic == RTSEMEVENTMULTI_MAGIC); + + /* + * Do the job (could be done without the lock, but play safe). + */ + ASMAtomicAndU32(&pThis->fStateAndGen, ~RTSEMEVENTMULTISOL_STATE_MASK); + + mutex_exit(&pThis->Mtx); + rtR0SemEventMultiSolRelease(pThis); + +#ifdef DEBUG_ramshankar + /** See @bugref{6318#c11}. */ + return VINF_SUCCESS; +#endif + RT_ASSERT_PREEMPT_CPUID(); + return VINF_SUCCESS; +} + + +/** + * Worker for RTSemEventMultiWaitEx and RTSemEventMultiWaitExDebug. + * + * @returns VBox status code. + * @param pThis The event semaphore. + * @param fFlags See RTSemEventMultiWaitEx. + * @param uTimeout See RTSemEventMultiWaitEx. + * @param pSrcPos The source code position of the wait. + */ +static int rtR0SemEventMultiSolWait(PRTSEMEVENTMULTIINTERNAL pThis, uint32_t fFlags, uint64_t uTimeout, + PCRTLOCKVALSRCPOS pSrcPos) +{ + uint32_t fOrgStateAndGen; + int rc; + + /* + * Validate the input. + */ + AssertPtrReturn(pThis, VERR_INVALID_PARAMETER); + AssertMsgReturn(pThis->u32Magic == RTSEMEVENTMULTI_MAGIC, ("%p u32Magic=%RX32\n", pThis, pThis->u32Magic), VERR_INVALID_PARAMETER); + AssertReturn(RTSEMWAIT_FLAGS_ARE_VALID(fFlags), VERR_INVALID_PARAMETER); + rtR0SemEventMultiSolRetain(pThis); + mutex_enter(&pThis->Mtx); /* this could be moved down to the else, but play safe for now. */ + + /* + * Is the event already signalled or do we have to wait? + */ + fOrgStateAndGen = ASMAtomicUoReadU32(&pThis->fStateAndGen); + if (fOrgStateAndGen & RTSEMEVENTMULTISOL_STATE_MASK) + rc = VINF_SUCCESS; + else + { + /* + * We have to wait. + */ + RTR0SEMSOLWAIT Wait; + rc = rtR0SemSolWaitInit(&Wait, fFlags, uTimeout); + if (RT_SUCCESS(rc)) + { + for (;;) + { + /* The destruction test. */ + if (RT_UNLIKELY(pThis->u32Magic != RTSEMEVENTMULTI_MAGIC)) + rc = VERR_SEM_DESTROYED; + else + { + /* Check the exit conditions. */ + if (RT_UNLIKELY(pThis->u32Magic != RTSEMEVENTMULTI_MAGIC)) + rc = VERR_SEM_DESTROYED; + else if (ASMAtomicUoReadU32(&pThis->fStateAndGen) != fOrgStateAndGen) + rc = VINF_SUCCESS; + else if (rtR0SemSolWaitHasTimedOut(&Wait)) + rc = VERR_TIMEOUT; + else if (rtR0SemSolWaitWasInterrupted(&Wait)) + rc = VERR_INTERRUPTED; + else + { + /* Do the wait and then recheck the conditions. */ + rtR0SemSolWaitDoIt(&Wait, &pThis->Cnd, &pThis->Mtx, &pThis->fStateAndGen, fOrgStateAndGen); + continue; + } + } + break; + } + rtR0SemSolWaitDelete(&Wait); + } + } + + mutex_exit(&pThis->Mtx); + rtR0SemEventMultiSolRelease(pThis); + return rc; +} + + + +RTDECL(int) RTSemEventMultiWaitEx(RTSEMEVENTMULTI hEventMultiSem, uint32_t fFlags, uint64_t uTimeout) +{ +#ifndef RTSEMEVENT_STRICT + return rtR0SemEventMultiSolWait(hEventMultiSem, fFlags, uTimeout, NULL); +#else + RTLOCKVALSRCPOS SrcPos = RTLOCKVALSRCPOS_INIT_NORMAL_API(); + return rtR0SemEventMultiSolWait(hEventMultiSem, fFlags, uTimeout, &SrcPos); +#endif +} + + +RTDECL(int) RTSemEventMultiWaitExDebug(RTSEMEVENTMULTI hEventMultiSem, uint32_t fFlags, uint64_t uTimeout, + RTHCUINTPTR uId, RT_SRC_POS_DECL) +{ + RTLOCKVALSRCPOS SrcPos = RTLOCKVALSRCPOS_INIT_DEBUG_API(); + return rtR0SemEventMultiSolWait(hEventMultiSem, fFlags, uTimeout, &SrcPos); +} + + +RTDECL(uint32_t) RTSemEventMultiGetResolution(void) +{ + return rtR0SemSolWaitGetResolution(); +} + + +RTR0DECL(bool) RTSemEventMultiIsSignalSafe(void) +{ + /* Don't trust solaris not to preempt us. */ + return false; +} + diff --git a/src/VBox/Runtime/r0drv/solaris/semeventwait-r0drv-solaris.h b/src/VBox/Runtime/r0drv/solaris/semeventwait-r0drv-solaris.h new file mode 100644 index 00000000..2494d6f5 --- /dev/null +++ b/src/VBox/Runtime/r0drv/solaris/semeventwait-r0drv-solaris.h @@ -0,0 +1,508 @@ +/* $Id: semeventwait-r0drv-solaris.h $ */ +/** @file + * IPRT - Solaris Ring-0 Driver Helpers for Event Semaphore Waits. + */ + +/* + * Copyright (C) 2006-2023 Oracle and/or its affiliates. + * + * This file is part of VirtualBox base platform packages, as + * available from https://www.virtualbox.org. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation, in version 3 of the + * License. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, see <https://www.gnu.org/licenses>. + * + * The contents of this file may alternatively be used under the terms + * of the Common Development and Distribution License Version 1.0 + * (CDDL), a copy of it is provided in the "COPYING.CDDL" file included + * in the VirtualBox distribution, in which case the provisions of the + * CDDL are applicable instead of those of the GPL. + * + * You may elect to license modified versions of this file under the + * terms and conditions of either the GPL or the CDDL or both. + * + * SPDX-License-Identifier: GPL-3.0-only OR CDDL-1.0 + */ + +#ifndef IPRT_INCLUDED_SRC_r0drv_solaris_semeventwait_r0drv_solaris_h +#define IPRT_INCLUDED_SRC_r0drv_solaris_semeventwait_r0drv_solaris_h +#ifndef RT_WITHOUT_PRAGMA_ONCE +# pragma once +#endif + +#include "the-solaris-kernel.h" + +#include <iprt/err.h> +#include <iprt/string.h> +#include <iprt/time.h> + + +/** The resolution (nanoseconds) specified when using timeout_generic. */ +#define RTR0SEMSOLWAIT_RESOLUTION 50000 + +/** Disables the cyclic fallback code for old S10 installs - see @bugref{5342}. + * @todo Fixed by @bugref{5595}, can be reenabled after checking out + * CY_HIGH_LEVEL. */ +#define RTR0SEMSOLWAIT_NO_OLD_S10_FALLBACK + +#define SOL_THREAD_TINTR_PTR ((kthread_t **)((char *)curthread + g_offrtSolThreadIntrThread)) + + +/** + * Solaris semaphore wait structure. + */ +typedef struct RTR0SEMSOLWAIT +{ + /** The absolute timeout given as nanoseconds since the start of the + * monotonic clock. */ + uint64_t uNsAbsTimeout; + /** The timeout in nanoseconds relative to the start of the wait. */ + uint64_t cNsRelTimeout; + /** The native timeout value. */ + union + { + /** The timeout (in ticks) when fHighRes is false. */ + clock_t lTimeout; + } u; + /** Set if we use high resolution timeouts. */ + bool fHighRes; + /** Set if it's an indefinite wait. */ + bool fIndefinite; + /** Set if the waiting thread is ready to be woken up. + * Avoids false setrun() calls due to temporary mutex exits. */ + bool volatile fWantWakeup; + /** Set if we've already timed out. + * Set by rtR0SemSolWaitDoIt or rtR0SemSolWaitHighResTimeout, read by + * rtR0SemSolWaitHasTimedOut. */ + bool volatile fTimedOut; + /** Whether the wait was interrupted. */ + bool fInterrupted; + /** Interruptible or uninterruptible wait. */ + bool fInterruptible; + /** The thread to wake up. */ + kthread_t *pThread; +#ifndef RTR0SEMSOLWAIT_NO_OLD_S10_FALLBACK + /** Cylic timer ID (used by the timeout callback). */ + cyclic_id_t idCy; +#endif + /** The mutex associated with the condition variable wait. */ + void volatile *pvMtx; +} RTR0SEMSOLWAIT; +/** Pointer to a solaris semaphore wait structure. */ +typedef RTR0SEMSOLWAIT *PRTR0SEMSOLWAIT; + + +/** + * Initializes a wait. + * + * The caller MUST check the wait condition BEFORE calling this function or the + * timeout logic will be flawed. + * + * @returns VINF_SUCCESS or VERR_TIMEOUT. + * @param pWait The wait structure. + * @param fFlags The wait flags. + * @param uTimeout The timeout. + */ +DECLINLINE(int) rtR0SemSolWaitInit(PRTR0SEMSOLWAIT pWait, uint32_t fFlags, uint64_t uTimeout) +{ + /* + * Process the flags and timeout. + */ + if (!(fFlags & RTSEMWAIT_FLAGS_INDEFINITE)) + { + if (fFlags & RTSEMWAIT_FLAGS_MILLISECS) + uTimeout = uTimeout < UINT64_MAX / RT_NS_1MS + ? uTimeout * RT_NS_1MS + : UINT64_MAX; + if (uTimeout == UINT64_MAX) + fFlags |= RTSEMWAIT_FLAGS_INDEFINITE; + else + { + uint64_t u64Now; + if (fFlags & RTSEMWAIT_FLAGS_RELATIVE) + { + if (uTimeout == 0) + return VERR_TIMEOUT; + + u64Now = RTTimeSystemNanoTS(); + pWait->cNsRelTimeout = uTimeout; + pWait->uNsAbsTimeout = u64Now + uTimeout; + if (pWait->uNsAbsTimeout < u64Now) /* overflow */ + fFlags |= RTSEMWAIT_FLAGS_INDEFINITE; + } + else + { + u64Now = RTTimeSystemNanoTS(); + if (u64Now >= uTimeout) + return VERR_TIMEOUT; + + pWait->cNsRelTimeout = uTimeout - u64Now; + pWait->uNsAbsTimeout = uTimeout; + } + } + } + + if (!(fFlags & RTSEMWAIT_FLAGS_INDEFINITE)) + { + pWait->fIndefinite = false; + if ( ( (fFlags & (RTSEMWAIT_FLAGS_NANOSECS | RTSEMWAIT_FLAGS_ABSOLUTE)) + || pWait->cNsRelTimeout < UINT32_C(1000000000) / 100 /*Hz*/ * 4) +#ifdef RTR0SEMSOLWAIT_NO_OLD_S10_FALLBACK + && g_pfnrtR0Sol_timeout_generic != NULL +#endif + ) + pWait->fHighRes = true; + else + { + uint64_t cTicks = NSEC_TO_TICK_ROUNDUP(uTimeout); + if (cTicks >= LONG_MAX) + fFlags |= RTSEMWAIT_FLAGS_INDEFINITE; + else + { + pWait->u.lTimeout = cTicks; + pWait->fHighRes = false; + } + } + } + + if (fFlags & RTSEMWAIT_FLAGS_INDEFINITE) + { + pWait->fIndefinite = true; + pWait->fHighRes = false; + pWait->uNsAbsTimeout = UINT64_MAX; + pWait->cNsRelTimeout = UINT64_MAX; + pWait->u.lTimeout = LONG_MAX; + } + + pWait->fWantWakeup = false; + pWait->fTimedOut = false; + pWait->fInterrupted = false; + pWait->fInterruptible = !!(fFlags & RTSEMWAIT_FLAGS_INTERRUPTIBLE); + pWait->pThread = curthread; + pWait->pvMtx = NULL; +#ifndef RTR0SEMSOLWAIT_NO_OLD_S10_FALLBACK + pWait->idCy = CYCLIC_NONE; +#endif + + return VINF_SUCCESS; +} + + +#ifndef RTR0SEMSOLWAIT_NO_OLD_S10_FALLBACK +/** + * Cyclic timeout callback that sets the timeout indicator and wakes up the + * waiting thread. + * + * @param pvUser The wait structure. + */ +static void rtR0SemSolWaitHighResTimeout(void *pvUser) +{ + PRTR0SEMSOLWAIT pWait = (PRTR0SEMSOLWAIT)pvUser; + kthread_t *pThread = pWait->pThread; + kmutex_t *pMtx = (kmutex_t *)ASMAtomicReadPtr(&pWait->pvMtx); + if (RT_VALID_PTR(pMtx)) + { + /* Enter the mutex here to make sure the thread has gone to sleep + before we wake it up. + Note: Trying to take the cpu_lock here doesn't work. */ + mutex_enter(pMtx); + if (mutex_owner(&cpu_lock) == curthread) + { + cyclic_remove(pWait->idCy); + pWait->idCy = CYCLIC_NONE; + } + bool const fWantWakeup = pWait->fWantWakeup; + ASMAtomicWriteBool(&pWait->fTimedOut, true); + mutex_exit(pMtx); + + if (fWantWakeup) + setrun(pThread); + } +} +#endif + + +/** + * Timeout callback that sets the timeout indicator and wakes up the waiting + * thread. + * + * @param pvUser The wait structure. + */ +static void rtR0SemSolWaitTimeout(void *pvUser) +{ + PRTR0SEMSOLWAIT pWait = (PRTR0SEMSOLWAIT)pvUser; + kthread_t *pThread = pWait->pThread; + kmutex_t *pMtx = (kmutex_t *)ASMAtomicReadPtr((void * volatile *)&pWait->pvMtx); + if (RT_VALID_PTR(pMtx)) + { + /* Enter the mutex here to make sure the thread has gone to sleep + before we wake it up. */ + mutex_enter(pMtx); + bool const fWantWakeup = pWait->fWantWakeup; + ASMAtomicWriteBool(&pWait->fTimedOut, true); + mutex_exit(pMtx); + + if (fWantWakeup) + setrun(pThread); + } +} + + +/** + * Do the actual wait. + * + * @param pWait The wait structure. + * @param pCnd The condition variable to wait on. + * @param pMtx The mutex related to the condition variable. + * The caller has entered this. + * @param pfState The state variable to check if have changed + * after leaving the mutex (spinlock). + * @param fCurState The current value of @a pfState. We'll return + * without sleeping if @a pfState doesn't hold + * this value after reacquiring the mutex. + * + * @remarks This must be call with the object mutex (spinlock) held. + */ +DECLINLINE(void) rtR0SemSolWaitDoIt(PRTR0SEMSOLWAIT pWait, kcondvar_t *pCnd, kmutex_t *pMtx, + uint32_t volatile *pfState, uint32_t const fCurState) +{ + union + { + callout_id_t idCo; + timeout_id_t idTom; + } u; + + u.idCo = 0; /* Silence a spurious gcc [-Wmaybe-uninitialized] warning. */ + + /* + * Arm the timeout callback. + * + * We will have to leave the mutex (spinlock) when doing this because S10 + * (didn't check S11) will not correctly preserve PIL across calls to + * timeout_generic() - @bugref{5595}. We do it for all timeout methods to + * be on the safe side, the nice sideeffect of which is that it solves the + * lock inversion problem found in @bugref{5342}. + */ + bool const fHasTimeout = !pWait->fIndefinite; + bool fGoToSleep = !fHasTimeout; + if (fHasTimeout) + { + pWait->fWantWakeup = false; /* only want fTimedOut */ + ASMAtomicWritePtr(&pWait->pvMtx, pMtx); /* atomic is paranoia */ + mutex_exit(pMtx); + + if (pWait->fHighRes) + { +#ifndef RTR0SEMSOLWAIT_NO_OLD_S10_FALLBACK + if (g_pfnrtR0Sol_timeout_generic != NULL) +#endif + { + /* + * High resolution timeout - arm a high resolution timeout callback + * for waking up the thread at the desired time. + */ + u.idCo = g_pfnrtR0Sol_timeout_generic(CALLOUT_REALTIME, rtR0SemSolWaitTimeout, pWait, + pWait->uNsAbsTimeout, RTR0SEMSOLWAIT_RESOLUTION, + CALLOUT_FLAG_ABSOLUTE); + } +#ifndef RTR0SEMSOLWAIT_NO_OLD_S10_FALLBACK + else + { + /* + * High resolution timeout - arm a one-shot cyclic for waking up + * the thread at the desired time. + */ + cyc_handler_t Cyh; + Cyh.cyh_arg = pWait; + Cyh.cyh_func = rtR0SemSolWaitHighResTimeout; + Cyh.cyh_level = CY_LOW_LEVEL; /// @todo try CY_LOCK_LEVEL and CY_HIGH_LEVEL? + + cyc_time_t Cyt; + Cyt.cyt_when = pWait->uNsAbsTimeout; + Cyt.cyt_interval = UINT64_C(1000000000) * 60; + + mutex_enter(&cpu_lock); + pWait->idCy = cyclic_add(&Cyh, &Cyt); + mutex_exit(&cpu_lock); + } +#endif + } + else + { + /* + * Normal timeout. + * We're better off with our own callback like on the timeout man page, + * than calling cv_timedwait[_sig](). + */ + u.idTom = realtime_timeout(rtR0SemSolWaitTimeout, pWait, pWait->u.lTimeout); + } + + /* + * Reacquire the mutex and check if the sleep condition still holds and + * that we didn't already time out. + */ + mutex_enter(pMtx); + pWait->fWantWakeup = true; + fGoToSleep = !ASMAtomicUoReadBool(&pWait->fTimedOut) + && ASMAtomicReadU32(pfState) == fCurState; + } + + /* + * Do the waiting if that's still desirable. + * (rc > 0 - normal wake-up; rc == 0 - interruption; rc == -1 - timeout) + */ + if (fGoToSleep) + { + if (pWait->fInterruptible) + { + int rc = cv_wait_sig(pCnd, pMtx); + if (RT_UNLIKELY(rc <= 0)) + { + if (RT_LIKELY(rc == 0)) + pWait->fInterrupted = true; + else + AssertMsgFailed(("rc=%d\n", rc)); /* no timeouts, see above! */ + } + } + else + cv_wait(pCnd, pMtx); + } + + /* + * Remove the timeout callback. Drop the lock while we're doing that + * to reduce lock contention / deadlocks. Before dropping the lock, + * indicate that the callback shouldn't do anything. + * + * (Too bad we are stuck with the cv_* API here, it's doing a little + * bit too much.) + */ + if (fHasTimeout) + { + pWait->fWantWakeup = false; + ASMAtomicWritePtr(&pWait->pvMtx, NULL); + mutex_exit(pMtx); + + if (pWait->fHighRes) + { +#ifndef RTR0SEMSOLWAIT_NO_OLD_S10_FALLBACK + if (g_pfnrtR0Sol_timeout_generic != NULL) +#endif + g_pfnrtR0Sol_untimeout_generic(u.idCo, 0 /*nowait*/); +#ifndef RTR0SEMSOLWAIT_NO_OLD_S10_FALLBACK + else + { + mutex_enter(&cpu_lock); + if (pWait->idCy != CYCLIC_NONE) + { + cyclic_remove(pWait->idCy); + pWait->idCy = CYCLIC_NONE; + } + mutex_exit(&cpu_lock); + } +#endif + } + else + untimeout(u.idTom); + + mutex_enter(pMtx); + } +} + + +/** + * Checks if a solaris wait was interrupted. + * + * @returns true / false + * @param pWait The wait structure. + * @remarks This shall be called before the first rtR0SemSolWaitDoIt(). + */ +DECLINLINE(bool) rtR0SemSolWaitWasInterrupted(PRTR0SEMSOLWAIT pWait) +{ + return pWait->fInterrupted; +} + + +/** + * Checks if a solaris wait has timed out. + * + * @returns true / false + * @param pWait The wait structure. + */ +DECLINLINE(bool) rtR0SemSolWaitHasTimedOut(PRTR0SEMSOLWAIT pWait) +{ + return pWait->fTimedOut; +} + + +/** + * Deletes a solaris wait. + * + * @param pWait The wait structure. + */ +DECLINLINE(void) rtR0SemSolWaitDelete(PRTR0SEMSOLWAIT pWait) +{ + pWait->pThread = NULL; +} + + +/** + * Enters the mutex, unpinning the underlying current thread if contended and + * we're on an interrupt thread. + * + * The unpinning is done to prevent a deadlock, see s this could lead to a + * deadlock (see @bugref{4259} for the full explanation) + * + * @param pMtx The mutex to enter. + */ +DECLINLINE(void) rtR0SemSolWaitEnterMutexWithUnpinningHack(kmutex_t *pMtx) +{ + int fAcquired = mutex_tryenter(pMtx); + if (!fAcquired) + { + /* + * Note! This assumes nobody is using the RTThreadPreemptDisable() in an + * interrupt context and expects it to work right. The swtch will + * result in a voluntary preemption. To fix this, we would have to + * do our own counting in RTThreadPreemptDisable/Restore() like we do + * on systems which doesn't do preemption (OS/2, linux, ...) and + * check whether preemption was disabled via RTThreadPreemptDisable() + * or not and only call swtch if RTThreadPreemptDisable() wasn't called. + */ + kthread_t **ppIntrThread = SOL_THREAD_TINTR_PTR; + if ( *ppIntrThread + && getpil() < DISP_LEVEL) + { + RTTHREADPREEMPTSTATE PreemptState = RTTHREADPREEMPTSTATE_INITIALIZER; + RTThreadPreemptDisable(&PreemptState); + preempt(); + RTThreadPreemptRestore(&PreemptState); + } + mutex_enter(pMtx); + } +} + + +/** + * Gets the max resolution of the timeout machinery. + * + * @returns Resolution specified in nanoseconds. + */ +DECLINLINE(uint32_t) rtR0SemSolWaitGetResolution(void) +{ + return g_pfnrtR0Sol_timeout_generic != NULL + ? RTR0SEMSOLWAIT_RESOLUTION + : cyclic_getres(); +} + +#endif /* !IPRT_INCLUDED_SRC_r0drv_solaris_semeventwait_r0drv_solaris_h */ + diff --git a/src/VBox/Runtime/r0drv/solaris/semfastmutex-r0drv-solaris.c b/src/VBox/Runtime/r0drv/solaris/semfastmutex-r0drv-solaris.c new file mode 100644 index 00000000..22a15aef --- /dev/null +++ b/src/VBox/Runtime/r0drv/solaris/semfastmutex-r0drv-solaris.c @@ -0,0 +1,130 @@ +/* $Id: semfastmutex-r0drv-solaris.c $ */ +/** @file + * IPRT - Fast Mutex Semaphores, Ring-0 Driver, Solaris. + */ + +/* + * Copyright (C) 2006-2023 Oracle and/or its affiliates. + * + * This file is part of VirtualBox base platform packages, as + * available from https://www.virtualbox.org. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation, in version 3 of the + * License. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, see <https://www.gnu.org/licenses>. + * + * The contents of this file may alternatively be used under the terms + * of the Common Development and Distribution License Version 1.0 + * (CDDL), a copy of it is provided in the "COPYING.CDDL" file included + * in the VirtualBox distribution, in which case the provisions of the + * CDDL are applicable instead of those of the GPL. + * + * You may elect to license modified versions of this file under the + * terms and conditions of either the GPL or the CDDL or both. + * + * SPDX-License-Identifier: GPL-3.0-only OR CDDL-1.0 + */ + + +/********************************************************************************************************************************* +* Header Files * +*********************************************************************************************************************************/ +#include "the-solaris-kernel.h" +#include "internal/iprt.h" +#include <iprt/semaphore.h> + +#include <iprt/asm.h> +#if defined(RT_ARCH_AMD64) || defined(RT_ARCH_X86) +# include <iprt/asm-amd64-x86.h> +#endif +#include <iprt/assert.h> +#include <iprt/errcore.h> +#include <iprt/mem.h> +#include <iprt/thread.h> +#include "internal/magics.h" + + +/********************************************************************************************************************************* +* Structures and Typedefs * +*********************************************************************************************************************************/ +/** + * Wrapper for the Solaris mutex. + */ +typedef struct RTSEMFASTMUTEXINTERNAL +{ + /** Magic value (RTSEMFASTMUTEX_MAGIC). */ + uint32_t u32Magic; + /** The Solaris mutex. */ + krwlock_t Mtx; +} RTSEMFASTMUTEXINTERNAL, *PRTSEMFASTMUTEXINTERNAL; + + + +RTDECL(int) RTSemFastMutexCreate(PRTSEMFASTMUTEX phFastMtx) +{ + AssertCompile(sizeof(RTSEMFASTMUTEXINTERNAL) > sizeof(void *)); + AssertPtrReturn(phFastMtx, VERR_INVALID_POINTER); + RT_ASSERT_PREEMPTIBLE(); + + PRTSEMFASTMUTEXINTERNAL pThis = (PRTSEMFASTMUTEXINTERNAL)RTMemAlloc(sizeof(*pThis)); + if (pThis) + { + pThis->u32Magic = RTSEMFASTMUTEX_MAGIC; + rw_init (&pThis->Mtx, "RWLOCK", RW_DRIVER, NULL); + + *phFastMtx = pThis; + return VINF_SUCCESS; + } + return VERR_NO_MEMORY; +} + + +RTDECL(int) RTSemFastMutexDestroy(RTSEMFASTMUTEX hFastMtx) +{ + PRTSEMFASTMUTEXINTERNAL pThis = hFastMtx; + if (pThis == NIL_RTSEMFASTMUTEX) + return VINF_SUCCESS; + AssertPtrReturn(pThis, VERR_INVALID_HANDLE); + AssertMsgReturn(pThis->u32Magic == RTSEMFASTMUTEX_MAGIC, ("%p: u32Magic=%RX32\n", pThis, pThis->u32Magic), VERR_INVALID_HANDLE); + RT_ASSERT_INTS_ON(); + + ASMAtomicXchgU32(&pThis->u32Magic, RTSEMFASTMUTEX_MAGIC_DEAD); + rw_destroy(&pThis->Mtx); + RTMemFree(pThis); + + return VINF_SUCCESS; +} + + +RTDECL(int) RTSemFastMutexRequest(RTSEMFASTMUTEX hFastMtx) +{ + PRTSEMFASTMUTEXINTERNAL pThis = hFastMtx; + AssertPtrReturn(pThis, VERR_INVALID_HANDLE); + AssertMsgReturn(pThis->u32Magic == RTSEMFASTMUTEX_MAGIC, ("%p: u32Magic=%RX32\n", pThis, pThis->u32Magic), VERR_INVALID_HANDLE); + RT_ASSERT_PREEMPTIBLE(); + + rw_enter(&pThis->Mtx, RW_WRITER); + return VINF_SUCCESS; +} + + +RTDECL(int) RTSemFastMutexRelease(RTSEMFASTMUTEX hFastMtx) +{ + PRTSEMFASTMUTEXINTERNAL pThis = hFastMtx; + AssertPtrReturn(pThis, VERR_INVALID_HANDLE); + AssertMsgReturn(pThis->u32Magic == RTSEMFASTMUTEX_MAGIC, ("%p: u32Magic=%RX32\n", pThis, pThis->u32Magic), VERR_INVALID_HANDLE); + RT_ASSERT_INTS_ON(); + + rw_exit(&pThis->Mtx); + return VINF_SUCCESS; +} + diff --git a/src/VBox/Runtime/r0drv/solaris/semmutex-r0drv-solaris.c b/src/VBox/Runtime/r0drv/solaris/semmutex-r0drv-solaris.c new file mode 100644 index 00000000..e8081482 --- /dev/null +++ b/src/VBox/Runtime/r0drv/solaris/semmutex-r0drv-solaris.c @@ -0,0 +1,397 @@ +/* $Id: semmutex-r0drv-solaris.c $ */ +/** @file + * IPRT - Mutex Semaphores, Ring-0 Driver, Solaris. + */ + +/* + * Copyright (C) 2006-2023 Oracle and/or its affiliates. + * + * This file is part of VirtualBox base platform packages, as + * available from https://www.virtualbox.org. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation, in version 3 of the + * License. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, see <https://www.gnu.org/licenses>. + * + * The contents of this file may alternatively be used under the terms + * of the Common Development and Distribution License Version 1.0 + * (CDDL), a copy of it is provided in the "COPYING.CDDL" file included + * in the VirtualBox distribution, in which case the provisions of the + * CDDL are applicable instead of those of the GPL. + * + * You may elect to license modified versions of this file under the + * terms and conditions of either the GPL or the CDDL or both. + * + * SPDX-License-Identifier: GPL-3.0-only OR CDDL-1.0 + */ + + +/********************************************************************************************************************************* +* Header Files * +*********************************************************************************************************************************/ +#define RTSEMMUTEX_WITHOUT_REMAPPING +#include "the-solaris-kernel.h" +#include "internal/iprt.h" +#include <iprt/semaphore.h> + +#include <iprt/assert.h> +#include <iprt/asm.h> +#if defined(RT_ARCH_AMD64) || defined(RT_ARCH_X86) +# include <iprt/asm-amd64-x86.h> +#endif +#include <iprt/mem.h> +#include <iprt/err.h> +#include <iprt/list.h> +#include <iprt/thread.h> + +#include "internal/magics.h" + + +/********************************************************************************************************************************* +* Structures and Typedefs * +*********************************************************************************************************************************/ +/** + * Wrapper for the solaris semaphore structure. + */ +typedef struct RTSEMMUTEXINTERNAL +{ + /** Magic value (RTSEMMUTEX_MAGIC). */ + uint32_t u32Magic; + /** The number of recursions. */ + uint32_t cRecursions; + /** The number of threads waiting for the mutex. */ + uint32_t volatile cWaiters; + /** The number of threads referencing us. */ + uint32_t volatile cRefs; + /** The owner thread, NIL_RTNATIVETHREAD if none. */ + RTNATIVETHREAD hOwnerThread; + /** The mutex object for synchronization. */ + kmutex_t Mtx; + /** The condition variable for synchronization. */ + kcondvar_t Cnd; +} RTSEMMUTEXINTERNAL, *PRTSEMMUTEXINTERNAL; + + +RTDECL(int) RTSemMutexCreate(PRTSEMMUTEX phMtx) +{ + /* + * Allocate. + */ + PRTSEMMUTEXINTERNAL pThis = (PRTSEMMUTEXINTERNAL)RTMemAlloc(sizeof(*pThis)); + if (RT_UNLIKELY(!pThis)) + return VERR_NO_MEMORY; + + /* + * Initialize. + */ + pThis->u32Magic = RTSEMMUTEX_MAGIC; + pThis->cRecursions = 0; + pThis->cWaiters = 0; + pThis->cRefs = 1; + pThis->hOwnerThread = NIL_RTNATIVETHREAD; + mutex_init(&pThis->Mtx, "IPRT Mutex", MUTEX_DRIVER, (void *)ipltospl(DISP_LEVEL)); + cv_init(&pThis->Cnd, "IPRT CVM", CV_DRIVER, NULL); + *phMtx = pThis; + return VINF_SUCCESS; +} + + +RTDECL(int) RTSemMutexDestroy(RTSEMMUTEX hMtx) +{ + PRTSEMMUTEXINTERNAL pThis = hMtx; + + /* + * Validate. + */ + if (pThis == NIL_RTSEMMUTEX) + return VINF_SUCCESS; + AssertPtrReturn(pThis, VERR_INVALID_HANDLE); + AssertMsgReturn(pThis->u32Magic == RTSEMMUTEX_MAGIC, ("u32Magic=%RX32 pThis=%p\n", pThis->u32Magic, pThis), VERR_INVALID_HANDLE); + + mutex_enter(&pThis->Mtx); + + ASMAtomicDecU32(&pThis->cRefs); + + /* + * Invalidate the magic to indicate the mutex is being destroyed. + */ + ASMAtomicIncU32(&pThis->u32Magic); + if (pThis->cWaiters > 0) + { + /* + * Wake up all waiters, last waiter thread cleans up. + */ + cv_broadcast(&pThis->Cnd); + mutex_exit(&pThis->Mtx); + } + else if (pThis->cRefs == 0) + { + /* + * We're the last waiter, destroy. + */ + mutex_exit(&pThis->Mtx); + cv_destroy(&pThis->Cnd); + mutex_destroy(&pThis->Mtx); + RTMemFree(pThis); + } + else + { + /* + * We're not the last waiting thread to be woken up. Just relinquish & bail. + */ + mutex_exit(&pThis->Mtx); + } + + return VINF_SUCCESS; +} + + +/** + * Worker for rtSemMutexSolRequest that handles the case where we go to sleep. + * + * @returns VINF_SUCCESS, VERR_INTERRUPTED, or VERR_SEM_DESTROYED. + * Returns without owning the mutex. + * @param pThis The mutex instance. + * @param cMillies The timeout, must be > 0 or RT_INDEFINITE_WAIT. + * @param fInterruptible The wait type. + * + * @remarks This needs to be called with the mutex object held! + */ +static int rtSemMutexSolRequestSleep(PRTSEMMUTEXINTERNAL pThis, RTMSINTERVAL cMillies, + bool fInterruptible) +{ + int rc = VERR_GENERAL_FAILURE; + Assert(cMillies > 0); + + /* + * Now we wait (sleep; although might spin and then sleep) & reference the mutex. + */ + ASMAtomicIncU32(&pThis->cWaiters); + ASMAtomicIncU32(&pThis->cRefs); + + if (cMillies != RT_INDEFINITE_WAIT) + { + clock_t cTicks = drv_usectohz((clock_t)(cMillies * 1000L)); + clock_t cTimeout = ddi_get_lbolt(); + cTimeout += cTicks; + if (fInterruptible) + rc = cv_timedwait_sig(&pThis->Cnd, &pThis->Mtx, cTimeout); + else + rc = cv_timedwait(&pThis->Cnd, &pThis->Mtx, cTimeout); + } + else + { + if (fInterruptible) + rc = cv_wait_sig(&pThis->Cnd, &pThis->Mtx); + else + { + cv_wait(&pThis->Cnd, &pThis->Mtx); + rc = 1; + } + } + + ASMAtomicDecU32(&pThis->cWaiters); + if (rc > 0) + { + if (pThis->u32Magic == RTSEMMUTEX_MAGIC) + { + if (pThis->hOwnerThread == NIL_RTNATIVETHREAD) + { + /* + * Woken up by a release from another thread. + */ + Assert(pThis->cRecursions == 0); + pThis->cRecursions = 1; + pThis->hOwnerThread = RTThreadNativeSelf(); + rc = VINF_SUCCESS; + } + else + { + /* + * Interrupted by some signal. + */ + rc = VERR_INTERRUPTED; + } + } + else + { + /* + * Awakened due to the destruction-in-progress broadcast. + * We will cleanup if we're the last waiter. + */ + rc = VERR_SEM_DESTROYED; + } + } + else if (rc == -1) + { + /* + * Timed out. + */ + rc = VERR_TIMEOUT; + } + else + { + /* + * Condition may not have been met, returned due to pending signal. + */ + rc = VERR_INTERRUPTED; + } + + if (!ASMAtomicDecU32(&pThis->cRefs)) + { + Assert(RT_FAILURE_NP(rc)); + mutex_exit(&pThis->Mtx); + cv_destroy(&pThis->Cnd); + mutex_destroy(&pThis->Mtx); + RTMemFree(pThis); + return rc; + } + + return rc; +} + + +/** + * Internal worker. + */ +DECLINLINE(int) rtSemMutexSolRequest(RTSEMMUTEX hMutexSem, RTMSINTERVAL cMillies, bool fInterruptible) +{ + PRTSEMMUTEXINTERNAL pThis = hMutexSem; + int rc = VERR_GENERAL_FAILURE; + + /* + * Validate. + */ + AssertPtrReturn(pThis, VERR_INVALID_HANDLE); + AssertMsgReturn(pThis->u32Magic == RTSEMMUTEX_MAGIC, ("u32Magic=%RX32 pThis=%p\n", pThis->u32Magic, pThis), VERR_INVALID_HANDLE); + Assert(pThis->cRefs >= 1); + + /* + * Lock it and check if it's a recursion. + */ + mutex_enter(&pThis->Mtx); + if (pThis->hOwnerThread == RTThreadNativeSelf()) + { + pThis->cRecursions++; + Assert(pThis->cRecursions > 1); + Assert(pThis->cRecursions < 256); + rc = VINF_SUCCESS; + } + /* + * Not a recursion, claim the unowned mutex if we're there are no waiters. + */ + else if ( pThis->hOwnerThread == NIL_RTNATIVETHREAD + && pThis->cWaiters == 0) + { + pThis->cRecursions = 1; + pThis->hOwnerThread = RTThreadNativeSelf(); + rc = VINF_SUCCESS; + } + /* + * A polling call? + */ + else if (cMillies == 0) + rc = VERR_TIMEOUT; + /* + * No, we really need to get to sleep. + */ + else + rc = rtSemMutexSolRequestSleep(pThis, cMillies, fInterruptible); + + mutex_exit(&pThis->Mtx); + return rc; +} + + +RTDECL(int) RTSemMutexRequest(RTSEMMUTEX hMutexSem, RTMSINTERVAL cMillies) +{ + return rtSemMutexSolRequest(hMutexSem, cMillies, false /*fInterruptible*/); +} + + +RTDECL(int) RTSemMutexRequestDebug(RTSEMMUTEX hMutexSem, RTMSINTERVAL cMillies, RTHCUINTPTR uId, RT_SRC_POS_DECL) +{ + return RTSemMutexRequest(hMutexSem, cMillies); +} + + +RTDECL(int) RTSemMutexRequestNoResume(RTSEMMUTEX hMutexSem, RTMSINTERVAL cMillies) +{ + return rtSemMutexSolRequest(hMutexSem, cMillies, true /*fInterruptible*/); +} + + +RTDECL(int) RTSemMutexRequestNoResumeDebug(RTSEMMUTEX hMutexSem, RTMSINTERVAL cMillies, RTHCUINTPTR uId, RT_SRC_POS_DECL) +{ + return RTSemMutexRequestNoResume(hMutexSem, cMillies); +} + + +RTDECL(int) RTSemMutexRelease(RTSEMMUTEX hMtx) +{ + PRTSEMMUTEXINTERNAL pThis = hMtx; + int rc; + + /* + * Validate. + */ + AssertPtrReturn(pThis, VERR_INVALID_HANDLE); + AssertMsgReturn(pThis->u32Magic == RTSEMMUTEX_MAGIC, ("u32Magic=%RX32 pThis=%p\n", pThis->u32Magic, pThis), VERR_INVALID_HANDLE); + + /* + * Take the lock and release one recursion. + */ + mutex_enter(&pThis->Mtx); + if (pThis->hOwnerThread == RTThreadNativeSelf()) + { + Assert(pThis->cRecursions > 0); + if (--pThis->cRecursions == 0) + { + pThis->hOwnerThread = NIL_RTNATIVETHREAD; + + /* + * If there are any waiters, signal one of them. + */ + if (pThis->cWaiters > 0) + cv_signal(&pThis->Cnd); + } + rc = VINF_SUCCESS; + } + else + rc = VERR_NOT_OWNER; + + mutex_exit(&pThis->Mtx); + return rc; +} + + +RTDECL(bool) RTSemMutexIsOwned(RTSEMMUTEX hMutexSem) +{ + PRTSEMMUTEXINTERNAL pThis = hMutexSem; + bool fOwned = false; + + /* + * Validate. + */ + AssertPtrReturn(pThis, false); + AssertMsgReturn(pThis->u32Magic == RTSEMMUTEX_MAGIC, ("u32Magic=%RX32 pThis=%p\n", pThis->u32Magic, pThis), false); + + /* + * Check if this is the owner. + */ + mutex_enter(&pThis->Mtx); + fOwned = pThis->hOwnerThread != NIL_RTNATIVETHREAD; + mutex_exit(&pThis->Mtx); + + return fOwned; +} + diff --git a/src/VBox/Runtime/r0drv/solaris/spinlock-r0drv-solaris.c b/src/VBox/Runtime/r0drv/solaris/spinlock-r0drv-solaris.c new file mode 100644 index 00000000..9032d810 --- /dev/null +++ b/src/VBox/Runtime/r0drv/solaris/spinlock-r0drv-solaris.c @@ -0,0 +1,214 @@ +/* $Id: spinlock-r0drv-solaris.c $ */ +/** @file + * IPRT - Spinlocks, Ring-0 Driver, Solaris. + */ + +/* + * Copyright (C) 2006-2023 Oracle and/or its affiliates. + * + * This file is part of VirtualBox base platform packages, as + * available from https://www.virtualbox.org. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation, in version 3 of the + * License. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, see <https://www.gnu.org/licenses>. + * + * The contents of this file may alternatively be used under the terms + * of the Common Development and Distribution License Version 1.0 + * (CDDL), a copy of it is provided in the "COPYING.CDDL" file included + * in the VirtualBox distribution, in which case the provisions of the + * CDDL are applicable instead of those of the GPL. + * + * You may elect to license modified versions of this file under the + * terms and conditions of either the GPL or the CDDL or both. + * + * SPDX-License-Identifier: GPL-3.0-only OR CDDL-1.0 + */ + + +/********************************************************************************************************************************* +* Header Files * +*********************************************************************************************************************************/ +#include "the-solaris-kernel.h" +#include "internal/iprt.h" +#include <iprt/spinlock.h> + +#include <iprt/asm.h> +#if defined(RT_ARCH_AMD64) || defined(RT_ARCH_X86) +# include <iprt/asm-amd64-x86.h> +#endif +#include <iprt/assert.h> +#include <iprt/errcore.h> +#include <iprt/mem.h> +#include <iprt/mp.h> +#include <iprt/thread.h> +#include "internal/magics.h" + + +/********************************************************************************************************************************* +* Structures and Typedefs * +*********************************************************************************************************************************/ +/** + * Wrapper for the struct mutex type. + */ +typedef struct RTSPINLOCKINTERNAL +{ + /** Spinlock magic value (RTSPINLOCK_MAGIC). */ + uint32_t volatile u32Magic; + /** Spinlock creation flags. */ + uint32_t fFlags; + /** Saved interrupt flag. */ + uint32_t volatile fIntSaved; + /** A Solaris spinlock. */ + kmutex_t Mtx; +#ifdef RT_MORE_STRICT + /** The idAssertCpu variable before acquring the lock for asserting after + * releasing the spinlock. */ + RTCPUID volatile idAssertCpu; + /** The CPU that owns the lock. */ + RTCPUID volatile idCpuOwner; +#endif +} RTSPINLOCKINTERNAL, *PRTSPINLOCKINTERNAL; + + + +RTDECL(int) RTSpinlockCreate(PRTSPINLOCK pSpinlock, uint32_t fFlags, const char *pszName) +{ + RT_ASSERT_PREEMPTIBLE(); + AssertReturn(fFlags == RTSPINLOCK_FLAGS_INTERRUPT_SAFE || fFlags == RTSPINLOCK_FLAGS_INTERRUPT_UNSAFE, VERR_INVALID_PARAMETER); + + /* + * Allocate. + */ + AssertCompile(sizeof(RTSPINLOCKINTERNAL) > sizeof(void *)); + PRTSPINLOCKINTERNAL pThis = (PRTSPINLOCKINTERNAL)RTMemAlloc(sizeof(*pThis)); + if (!pThis) + return VERR_NO_MEMORY; + + /* + * Initialize & return. + */ + pThis->u32Magic = RTSPINLOCK_MAGIC; + pThis->fFlags = fFlags; + pThis->fIntSaved = 0; + /** @todo Consider different PIL when not interrupt safe requirement. */ + mutex_init(&pThis->Mtx, "IPRT Spinlock", MUTEX_SPIN, (void *)ipltospl(PIL_MAX)); + *pSpinlock = pThis; + return VINF_SUCCESS; +} + + +RTDECL(int) RTSpinlockDestroy(RTSPINLOCK Spinlock) +{ + /* + * Validate input. + */ + RT_ASSERT_INTS_ON(); + PRTSPINLOCKINTERNAL pThis = (PRTSPINLOCKINTERNAL)Spinlock; + if (!pThis) + return VERR_INVALID_PARAMETER; + AssertMsgReturn(pThis->u32Magic == RTSPINLOCK_MAGIC, + ("Invalid spinlock %p magic=%#x\n", pThis, pThis->u32Magic), + VERR_INVALID_PARAMETER); + + /* + * Make the lock invalid and release the memory. + */ + ASMAtomicIncU32(&pThis->u32Magic); + mutex_destroy(&pThis->Mtx); + RTMemFree(pThis); + return VINF_SUCCESS; +} + + +RTDECL(void) RTSpinlockAcquire(RTSPINLOCK Spinlock) +{ + PRTSPINLOCKINTERNAL pThis = (PRTSPINLOCKINTERNAL)Spinlock; + RT_ASSERT_PREEMPT_CPUID_VAR(); + AssertPtr(pThis); + Assert(pThis->u32Magic == RTSPINLOCK_MAGIC); + + if (pThis->fFlags & RTSPINLOCK_FLAGS_INTERRUPT_SAFE) + { +#if defined(RT_ARCH_AMD64) || defined(RT_ARCH_X86) + uint32_t fIntSaved = ASMIntDisableFlags(); +#endif + mutex_enter(&pThis->Mtx); + + /* + * Solaris 10 doesn't preserve the interrupt flag, but since we're at PIL_MAX we should be + * fine and not get interrupts while lock is held. Re-disable interrupts to not upset + * assertions & assumptions callers might have. + */ +#if defined(RT_ARCH_AMD64) || defined(RT_ARCH_X86) + ASMIntDisable(); +#endif + +#if defined(RT_ARCH_AMD64) || defined(RT_ARCH_X86) + Assert(!ASMIntAreEnabled()); +#endif + pThis->fIntSaved = fIntSaved; + } + else + { +#if defined(RT_STRICT) && (defined(RT_ARCH_AMD64) || defined(RT_ARCH_X86)) + bool fIntsOn = ASMIntAreEnabled(); +#endif + + mutex_enter(&pThis->Mtx); + +#if defined(RT_ARCH_AMD64) || defined(RT_ARCH_X86) + AssertMsg(fIntsOn == ASMIntAreEnabled(), ("fIntsOn=%RTbool\n", fIntsOn)); +#endif + } + + RT_ASSERT_PREEMPT_CPUID_SPIN_ACQUIRED(pThis); +} + + +RTDECL(void) RTSpinlockRelease(RTSPINLOCK Spinlock) +{ + PRTSPINLOCKINTERNAL pThis = (PRTSPINLOCKINTERNAL)Spinlock; + RT_ASSERT_PREEMPT_CPUID_SPIN_RELEASE_VARS(); + + AssertPtr(pThis); + Assert(pThis->u32Magic == RTSPINLOCK_MAGIC); + RT_ASSERT_PREEMPT_CPUID_SPIN_RELEASE(pThis); + + if (pThis->fFlags & RTSPINLOCK_FLAGS_INTERRUPT_SAFE) + { +#if defined(RT_ARCH_AMD64) || defined(RT_ARCH_X86) + uint32_t fIntSaved = pThis->fIntSaved; + pThis->fIntSaved = 0; +#endif + mutex_exit(&pThis->Mtx); + +#if defined(RT_ARCH_AMD64) || defined(RT_ARCH_X86) + ASMSetFlags(fIntSaved); +#endif + } + else + { +#if defined(RT_STRICT) && (defined(RT_ARCH_AMD64) || defined(RT_ARCH_X86)) + bool fIntsOn = ASMIntAreEnabled(); +#endif + + mutex_exit(&pThis->Mtx); + +#if defined(RT_ARCH_AMD64) || defined(RT_ARCH_X86) + AssertMsg(fIntsOn == ASMIntAreEnabled(), ("fIntsOn=%RTbool\n", fIntsOn)); +#endif + } + + RT_ASSERT_PREEMPT_CPUID(); +} + diff --git a/src/VBox/Runtime/r0drv/solaris/the-solaris-kernel.h b/src/VBox/Runtime/r0drv/solaris/the-solaris-kernel.h new file mode 100644 index 00000000..3cadd282 --- /dev/null +++ b/src/VBox/Runtime/r0drv/solaris/the-solaris-kernel.h @@ -0,0 +1,244 @@ +/* $Id: the-solaris-kernel.h $ */ +/** @file + * IPRT - Include all necessary headers for the Solaris kernel. + */ + +/* + * Copyright (C) 2006-2023 Oracle and/or its affiliates. + * + * This file is part of VirtualBox base platform packages, as + * available from https://www.virtualbox.org. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation, in version 3 of the + * License. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, see <https://www.gnu.org/licenses>. + * + * The contents of this file may alternatively be used under the terms + * of the Common Development and Distribution License Version 1.0 + * (CDDL), a copy of it is provided in the "COPYING.CDDL" file included + * in the VirtualBox distribution, in which case the provisions of the + * CDDL are applicable instead of those of the GPL. + * + * You may elect to license modified versions of this file under the + * terms and conditions of either the GPL or the CDDL or both. + * + * SPDX-License-Identifier: GPL-3.0-only OR CDDL-1.0 + */ + +#ifndef IPRT_INCLUDED_SRC_r0drv_solaris_the_solaris_kernel_h +#define IPRT_INCLUDED_SRC_r0drv_solaris_the_solaris_kernel_h +#ifndef RT_WITHOUT_PRAGMA_ONCE +# pragma once +#endif + +#include <sys/kmem.h> +#include <sys/types.h> +#include <sys/mman.h> +#include <sys/thread.h> +#include <sys/mutex.h> +#include <sys/condvar.h> +#include <sys/sdt.h> +#include <sys/schedctl.h> +#include <sys/time.h> +#include <sys/sysmacros.h> +#include <sys/cmn_err.h> +#include <sys/vmsystm.h> +#include <sys/cyclic.h> +#include <sys/class.h> +#include <sys/cpuvar.h> +#include <sys/archsystm.h> +#include <sys/x_call.h> /* in platform dir */ +#include <sys/x86_archext.h> +#include <vm/hat.h> +#include <vm/seg_vn.h> +#include <vm/seg_kmem.h> +#include <vm/page.h> +#include <sys/ddi.h> +#include <sys/sunddi.h> +#include <sys/spl.h> +#include <sys/archsystm.h> +#include <sys/callo.h> +#include <sys/kobj.h> +#include <sys/ctf_api.h> +#include <sys/modctl.h> +#include <sys/proc.h> +#include <sys/t_lock.h> + +#undef u /* /usr/include/sys/user.h:249:1 is where this is defined to (curproc->p_user). very cool. */ + +#include <iprt/cdefs.h> +#include <iprt/types.h> +#include <iprt/dbg.h> + +RT_C_DECLS_BEGIN + +/* IPRT functions. */ +DECLHIDDEN(void *) rtR0SolMemAlloc(uint64_t cbPhysHi, uint64_t *puPhys, size_t cb, uint64_t cbAlign, bool fContig); +DECLHIDDEN(void) rtR0SolMemFree(void *pv, size_t cb); + + +/* Solaris functions. */ +typedef callout_id_t (*PFNSOL_timeout_generic)(int type, void (*func)(void *), + void *arg, hrtime_t expiration, + hrtime_t resultion, int flags); +typedef hrtime_t (*PFNSOL_untimeout_generic)(callout_id_t id, int nowait); +typedef int (*PFNSOL_cyclic_reprogram)(cyclic_id_t id, hrtime_t expiration); +typedef void (*PFNSOL_contig_free)(void *addr, size_t size); +typedef int (*PFNSOL_page_noreloc_supported)(size_t cbPageSize); + +/* IPRT globals. */ +extern bool g_frtSolSplSetsEIF; +extern RTCPUSET g_rtMpSolCpuSet; +extern PFNSOL_timeout_generic g_pfnrtR0Sol_timeout_generic; +extern PFNSOL_untimeout_generic g_pfnrtR0Sol_untimeout_generic; +extern PFNSOL_cyclic_reprogram g_pfnrtR0Sol_cyclic_reprogram; +extern PFNSOL_contig_free g_pfnrtR0Sol_contig_free; +extern PFNSOL_page_noreloc_supported g_pfnrtR0Sol_page_noreloc_supported; +extern size_t g_offrtSolThreadPreempt; +extern size_t g_offrtSolThreadIntrThread; +extern size_t g_offrtSolThreadLock; +extern size_t g_offrtSolThreadProc; +extern size_t g_offrtSolThreadId; +extern size_t g_offrtSolCpuPreempt; +extern size_t g_offrtSolCpuForceKernelPreempt; +extern bool g_frtSolInitDone; +extern RTDBGKRNLINFO g_hKrnlDbgInfo; + +/* + * Workarounds for running on old versions of solaris with different cross call + * interfaces. If we find xc_init_cpu() in the kernel, then just use the + * defined interfaces for xc_call() from the include file where the xc_call() + * interfaces just takes a pointer to a ulong_t array. The array must be long + * enough to hold "ncpus" bits at runtime. + + * The reason for the hacks is that using the type "cpuset_t" is pretty much + * impossible from code built outside the Solaris source repository that wants + * to run on multiple releases of Solaris. + * + * For old style xc_call()s, 32 bit solaris and older 64 bit versions use + * "ulong_t" as cpuset_t. + * + * Later versions of 64 bit Solaris used: struct {ulong_t words[x];} + * where "x" depends on NCPU. + * + * We detect the difference in 64 bit support by checking the kernel value of + * max_cpuid, which always holds the compiled value of NCPU - 1. + * + * If Solaris increases NCPU to more than 256, VBox will continue to work on + * all versions of Solaris as long as the number of installed CPUs in the + * machine is <= IPRT_SOLARIS_NCPUS. If IPRT_SOLARIS_NCPUS is increased, this + * code has to be re-written some to provide compatibility with older Solaris + * which expects cpuset_t to be based on NCPU==256 -- or we discontinue + * support of old Nevada/S10. + */ +#define IPRT_SOL_NCPUS 256 +#define IPRT_SOL_SET_WORDS (IPRT_SOL_NCPUS / (sizeof(ulong_t) * 8)) +#define IPRT_SOL_X_CALL_HIPRI (2) /* for Old Solaris interface */ +typedef struct RTSOLCPUSET +{ + ulong_t auCpus[IPRT_SOL_SET_WORDS]; +} RTSOLCPUSET; +typedef RTSOLCPUSET *PRTSOLCPUSET; + +/* Avoid warnings even if it means more typing... */ +typedef struct RTR0FNSOLXCCALL +{ + union + { + void *(*pfnSol_xc_call) (xc_arg_t, xc_arg_t, xc_arg_t, ulong_t *, xc_func_t); + void *(*pfnSol_xc_call_old) (xc_arg_t, xc_arg_t, xc_arg_t, int, RTSOLCPUSET, xc_func_t); + void *(*pfnSol_xc_call_old_ulong)(xc_arg_t, xc_arg_t, xc_arg_t, int, ulong_t, xc_func_t); + } u; +} RTR0FNSOLXCCALL; +typedef RTR0FNSOLXCCALL *PRTR0FNSOLXCCALL; + +extern RTR0FNSOLXCCALL g_rtSolXcCall; +extern bool g_frtSolOldIPI; +extern bool g_frtSolOldIPIUlong; + +/* + * Thread-context hooks. + * Workarounds for older Solaris versions that did not have the exitctx() callback. + */ +typedef struct RTR0FNSOLTHREADCTX +{ + union + { + void *(*pfnSol_installctx) (kthread_t *pThread, void *pvArg, + void (*pfnSave)(void *pvArg), + void (*pfnRestore)(void *pvArg), + void (*pfnFork)(void *pvThread, void *pvThreadFork), + void (*pfnLwpCreate)(void *pvThread, void *pvThreadCreate), + void (*pfnExit)(void *pvThread), + void (*pfnFree)(void *pvArg, int fIsExec)); + + void *(*pfnSol_installctx_old) (kthread_t *pThread, void *pvArg, + void (*pfnSave)(void *pvArg), + void (*pfnRestore)(void *pvArg), + void (*pfnFork)(void *pvThread, void *pvThreadFork), + void (*pfnLwpCreate)(void *pvThread, void *pvThreadCreate), + void (*pfnFree)(void *pvArg, int fIsExec)); + } Install; + + union + { + int (*pfnSol_removectx) (kthread_t *pThread, void *pvArg, + void (*pfnSave)(void *pvArg), + void (*pfnRestore)(void *pvArg), + void (*pfnFork)(void *pvThread, void *pvThreadFork), + void (*pfnLwpCreate)(void *pvThread, void *pvThreadCreate), + void (*pfnExit)(void *pvThread), + void (*pfnFree)(void *pvArg, int fIsExec)); + + int (*pfnSol_removectx_old) (kthread_t *pThread, void *pvArg, + void (*pfnSave)(void *pvArg), + void (*pfnRestore)(void *pvArg), + void (*pfnFork)(void *pvThread, void *pvThreadFork), + void (*pfnLwpCreate)(void *pvThread, void *pvThreadCreate), + void (*pfnFree)(void *pvArg, int fIsExec)); + } Remove; +} RTR0FNSOLTHREADCTX; +typedef RTR0FNSOLTHREADCTX *PRTR0FNSOLTHREADCTX; + +extern RTR0FNSOLTHREADCTX g_rtSolThreadCtx; +extern bool g_frtSolOldThreadCtx; + +/* + * Workaround for older Solaris versions which called map_addr()/choose_addr()/ + * map_addr_proc() with an 'alignment' argument that was removed in Solaris + * 11.4. + */ +typedef struct RTR0FNSOLMAPADDR +{ + union + { + void *(*pfnSol_map_addr) (caddr_t *, size_t, offset_t, uint_t); + void *(*pfnSol_map_addr_old) (caddr_t *, size_t, offset_t, int, uint_t); + } u; +} RTR0FNSOLMAPADDR; +typedef RTR0FNSOLMAPADDR *PRTR0FNSOLMAPADDR; + +extern RTR0FNSOLMAPADDR g_rtSolMapAddr; +extern bool g_frtSolOldMapAddr; + +/* Solaris globals. */ +extern uintptr_t kernelbase; + +/* Misc stuff from newer kernels. */ +#ifndef CALLOUT_FLAG_ABSOLUTE +# define CALLOUT_FLAG_ABSOLUTE 2 +#endif + +RT_C_DECLS_END + +#endif /* !IPRT_INCLUDED_SRC_r0drv_solaris_the_solaris_kernel_h */ + diff --git a/src/VBox/Runtime/r0drv/solaris/thread-r0drv-solaris.c b/src/VBox/Runtime/r0drv/solaris/thread-r0drv-solaris.c new file mode 100644 index 00000000..0fefabe9 --- /dev/null +++ b/src/VBox/Runtime/r0drv/solaris/thread-r0drv-solaris.c @@ -0,0 +1,195 @@ +/* $Id: thread-r0drv-solaris.c $ */ +/** @file + * IPRT - Threads, Ring-0 Driver, Solaris. + */ + +/* + * Copyright (C) 2006-2023 Oracle and/or its affiliates. + * + * This file is part of VirtualBox base platform packages, as + * available from https://www.virtualbox.org. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation, in version 3 of the + * License. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, see <https://www.gnu.org/licenses>. + * + * The contents of this file may alternatively be used under the terms + * of the Common Development and Distribution License Version 1.0 + * (CDDL), a copy of it is provided in the "COPYING.CDDL" file included + * in the VirtualBox distribution, in which case the provisions of the + * CDDL are applicable instead of those of the GPL. + * + * You may elect to license modified versions of this file under the + * terms and conditions of either the GPL or the CDDL or both. + * + * SPDX-License-Identifier: GPL-3.0-only OR CDDL-1.0 + */ + + +/********************************************************************************************************************************* +* Header Files * +*********************************************************************************************************************************/ +#include "the-solaris-kernel.h" +#include "internal/iprt.h" +#include <iprt/thread.h> + +#if defined(RT_ARCH_AMD64) || defined(RT_ARCH_X86) +# include <iprt/asm-amd64-x86.h> +#endif +#include <iprt/assert.h> +#include <iprt/errcore.h> +#include <iprt/mp.h> + +#define SOL_THREAD_PREEMPT (*((char *)curthread + g_offrtSolThreadPreempt)) +#define SOL_CPU_RUNRUN (*((char *)CPU + g_offrtSolCpuPreempt)) +#define SOL_CPU_KPRUNRUN (*((char *)CPU + g_offrtSolCpuForceKernelPreempt)) + +RTDECL(RTNATIVETHREAD) RTThreadNativeSelf(void) +{ + return (RTNATIVETHREAD)curthread; +} + + +static int rtR0ThreadSolSleepCommon(RTMSINTERVAL cMillies) +{ + clock_t cTicks; + RT_ASSERT_PREEMPTIBLE(); + + if (!cMillies) + { + RTThreadYield(); + return VINF_SUCCESS; + } + + if (cMillies != RT_INDEFINITE_WAIT) + cTicks = drv_usectohz((clock_t)(cMillies * 1000L)); + else + cTicks = 0; + + delay(cTicks); + return VINF_SUCCESS; +} + + +RTDECL(int) RTThreadSleep(RTMSINTERVAL cMillies) +{ + return rtR0ThreadSolSleepCommon(cMillies); +} + + +RTDECL(int) RTThreadSleepNoLog(RTMSINTERVAL cMillies) +{ + return rtR0ThreadSolSleepCommon(cMillies); +} + + +RTDECL(bool) RTThreadYield(void) +{ + RT_ASSERT_PREEMPTIBLE(); + + RTTHREADPREEMPTSTATE PreemptState = RTTHREADPREEMPTSTATE_INITIALIZER; + RTThreadPreemptDisable(&PreemptState); + + char const bThreadPreempt = SOL_THREAD_PREEMPT; + char const bForcePreempt = SOL_CPU_KPRUNRUN; + bool fWillYield = false; + Assert(bThreadPreempt >= 1); + + /* + * If we are the last preemption enabler for this thread and if force + * preemption is set on the CPU, only then we are guaranteed to be preempted. + */ + if (bThreadPreempt == 1 && bForcePreempt != 0) + fWillYield = true; + + RTThreadPreemptRestore(&PreemptState); + return fWillYield; +} + + +RTDECL(bool) RTThreadPreemptIsEnabled(RTTHREAD hThread) +{ + Assert(hThread == NIL_RTTHREAD); + if (RT_UNLIKELY(g_frtSolInitDone == false)) + { + cmn_err(CE_CONT, "!RTThreadPreemptIsEnabled called before RTR0Init!\n"); + return true; + } + + bool fThreadPreempt = false; + if (SOL_THREAD_PREEMPT == 0) + fThreadPreempt = true; + + if (!fThreadPreempt) + return false; +#if defined(RT_ARCH_AMD64) || defined(RT_ARCH_X86) + if (!ASMIntAreEnabled()) + return false; +#endif + if (getpil() >= DISP_LEVEL) + return false; + return true; +} + + +RTDECL(bool) RTThreadPreemptIsPending(RTTHREAD hThread) +{ + Assert(hThread == NIL_RTTHREAD); + + char const bPreempt = SOL_CPU_RUNRUN; + char const bForcePreempt = SOL_CPU_KPRUNRUN; + return (bPreempt != 0 || bForcePreempt != 0); +} + + +RTDECL(bool) RTThreadPreemptIsPendingTrusty(void) +{ + /* yes, RTThreadPreemptIsPending is reliable. */ + return true; +} + + +RTDECL(bool) RTThreadPreemptIsPossible(void) +{ + /* yes, kernel preemption is possible. */ + return true; +} + + +RTDECL(void) RTThreadPreemptDisable(PRTTHREADPREEMPTSTATE pState) +{ + AssertPtr(pState); + + SOL_THREAD_PREEMPT++; + Assert(SOL_THREAD_PREEMPT >= 1); + + RT_ASSERT_PREEMPT_CPUID_DISABLE(pState); +} + + +RTDECL(void) RTThreadPreemptRestore(PRTTHREADPREEMPTSTATE pState) +{ + AssertPtr(pState); + RT_ASSERT_PREEMPT_CPUID_RESTORE(pState); + + Assert(SOL_THREAD_PREEMPT >= 1); + if (--SOL_THREAD_PREEMPT == 0 && SOL_CPU_RUNRUN != 0) + kpreempt(KPREEMPT_SYNC); +} + + +RTDECL(bool) RTThreadIsInInterrupt(RTTHREAD hThread) +{ + Assert(hThread == NIL_RTTHREAD); + return servicing_interrupt() ? true : false; +} + diff --git a/src/VBox/Runtime/r0drv/solaris/thread2-r0drv-solaris.c b/src/VBox/Runtime/r0drv/solaris/thread2-r0drv-solaris.c new file mode 100644 index 00000000..8ff450a5 --- /dev/null +++ b/src/VBox/Runtime/r0drv/solaris/thread2-r0drv-solaris.c @@ -0,0 +1,160 @@ +/* $Id: thread2-r0drv-solaris.c $ */ +/** @file + * IPRT - Threads (Part 2), Ring-0 Driver, Solaris. + */ + +/* + * Copyright (C) 2006-2023 Oracle and/or its affiliates. + * + * This file is part of VirtualBox base platform packages, as + * available from https://www.virtualbox.org. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation, in version 3 of the + * License. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, see <https://www.gnu.org/licenses>. + * + * The contents of this file may alternatively be used under the terms + * of the Common Development and Distribution License Version 1.0 + * (CDDL), a copy of it is provided in the "COPYING.CDDL" file included + * in the VirtualBox distribution, in which case the provisions of the + * CDDL are applicable instead of those of the GPL. + * + * You may elect to license modified versions of this file under the + * terms and conditions of either the GPL or the CDDL or both. + * + * SPDX-License-Identifier: GPL-3.0-only OR CDDL-1.0 + */ + + +/********************************************************************************************************************************* +* Header Files * +*********************************************************************************************************************************/ +#include "the-solaris-kernel.h" +#include "internal/iprt.h" +#include <iprt/thread.h> +#include <iprt/process.h> + +#include <iprt/assert.h> +#include <iprt/errcore.h> +#include "internal/thread.h" + +#define SOL_THREAD_ID_PTR ((uint64_t *)((char *)curthread + g_offrtSolThreadId)) +#define SOL_THREAD_LOCKP_PTR ((disp_lock_t **)((char *)curthread + g_offrtSolThreadLock)) + +DECLHIDDEN(int) rtThreadNativeInit(void) +{ + return VINF_SUCCESS; +} + + +RTDECL(RTTHREAD) RTThreadSelf(void) +{ + return rtThreadGetByNative(RTThreadNativeSelf()); +} + + +DECLHIDDEN(int) rtThreadNativeSetPriority(PRTTHREADINT pThread, RTTHREADTYPE enmType) +{ + int iPriority; + disp_lock_t **ppDispLock; + switch (enmType) + { + case RTTHREADTYPE_INFREQUENT_POLLER: iPriority = 60; break; + case RTTHREADTYPE_EMULATION: iPriority = 66; break; + case RTTHREADTYPE_DEFAULT: iPriority = 72; break; + case RTTHREADTYPE_MSG_PUMP: iPriority = 78; break; + case RTTHREADTYPE_IO: iPriority = 84; break; + case RTTHREADTYPE_TIMER: iPriority = 99; break; + default: + AssertMsgFailed(("enmType=%d\n", enmType)); + return VERR_INVALID_PARAMETER; + } + + Assert(curthread); + thread_lock(curthread); + thread_change_pri(curthread, iPriority, 0); + + /* + * thread_unlock() is a macro calling disp_lock_exit() with the thread's dispatcher lock. + * We need to dereference the offset manually here (for S10, S11 compatibility) rather than + * using the macro. + */ + ppDispLock = SOL_THREAD_LOCKP_PTR; + disp_lock_exit(*ppDispLock); + + return VINF_SUCCESS; +} + + +DECLHIDDEN(int) rtThreadNativeAdopt(PRTTHREADINT pThread) +{ + NOREF(pThread); + /* There is nothing special that needs doing here, but the + user really better know what he's cooking. */ + return VINF_SUCCESS; +} + + +DECLHIDDEN(void) rtThreadNativeWaitKludge(PRTTHREADINT pThread) +{ + thread_join(pThread->tid); +} + + +DECLHIDDEN(void) rtThreadNativeDestroy(PRTTHREADINT pThread) +{ + NOREF(pThread); +} + + +/** + * Native thread main function. + * + * @param pvThreadInt The thread structure. + */ +static void rtThreadNativeMain(void *pvThreadInt) +{ + PRTTHREADINT pThreadInt = (PRTTHREADINT)pvThreadInt; + + AssertCompile(sizeof(kt_did_t) == sizeof(pThreadInt->tid)); + uint64_t *pu64ThrId = SOL_THREAD_ID_PTR; + pThreadInt->tid = *pu64ThrId; + rtThreadMain(pThreadInt, RTThreadNativeSelf(), &pThreadInt->szName[0]); + thread_exit(); +} + + +DECLHIDDEN(int) rtThreadNativeCreate(PRTTHREADINT pThreadInt, PRTNATIVETHREAD pNativeThread) +{ + kthread_t *pThread; + RT_ASSERT_PREEMPTIBLE(); + + pThreadInt->tid = UINT64_MAX; + + pThread = thread_create(NULL, /* Stack, use base */ + 0, /* Stack size */ + rtThreadNativeMain, /* Thread function */ + pThreadInt, /* Function data */ + 0, /* Data size */ + &p0, /* Process 0 handle */ + TS_RUN, /* Ready to run */ + minclsyspri /* Priority */ + ); + if (RT_LIKELY(pThread)) + { + *pNativeThread = (RTNATIVETHREAD)pThread; + return VINF_SUCCESS; + } + + return VERR_OUT_OF_RESOURCES; +} + diff --git a/src/VBox/Runtime/r0drv/solaris/threadctxhooks-r0drv-solaris.c b/src/VBox/Runtime/r0drv/solaris/threadctxhooks-r0drv-solaris.c new file mode 100644 index 00000000..387e9356 --- /dev/null +++ b/src/VBox/Runtime/r0drv/solaris/threadctxhooks-r0drv-solaris.c @@ -0,0 +1,359 @@ +/* $Id: threadctxhooks-r0drv-solaris.c $ */ +/** @file + * IPRT - Thread Context Switching Hook, Ring-0 Driver, Solaris. + */ + +/* + * Copyright (C) 2013-2023 Oracle and/or its affiliates. + * + * This file is part of VirtualBox base platform packages, as + * available from https://www.virtualbox.org. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation, in version 3 of the + * License. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, see <https://www.gnu.org/licenses>. + * + * The contents of this file may alternatively be used under the terms + * of the Common Development and Distribution License Version 1.0 + * (CDDL), a copy of it is provided in the "COPYING.CDDL" file included + * in the VirtualBox distribution, in which case the provisions of the + * CDDL are applicable instead of those of the GPL. + * + * You may elect to license modified versions of this file under the + * terms and conditions of either the GPL or the CDDL or both. + * + * SPDX-License-Identifier: GPL-3.0-only OR CDDL-1.0 + */ + + +/********************************************************************************************************************************* +* Header Files * +*********************************************************************************************************************************/ +#include "the-solaris-kernel.h" +#include "internal/iprt.h" + +#include <iprt/mem.h> +#include <iprt/assert.h> +#include <iprt/thread.h> +#include <iprt/errcore.h> +#include <iprt/asm.h> +#include <iprt/log.h> +#include "internal/thread.h" + + +/********************************************************************************************************************************* +* Structures and Typedefs * +*********************************************************************************************************************************/ +/** + * The internal hook object for solaris. + */ +typedef struct RTTHREADCTXHOOKINT +{ + /** Magic value (RTTHREADCTXHOOKINT_MAGIC). */ + uint32_t volatile u32Magic; + /** The thread handle (owner) for which the context-hooks are registered. */ + RTNATIVETHREAD hOwner; + /** Pointer to the registered callback function. */ + PFNRTTHREADCTXHOOK pfnCallback; + /** User argument passed to the callback function. */ + void *pvUser; + /** Whether the hook is enabled or not. */ + bool volatile fEnabled; + /** Number of references to this object. */ + uint32_t volatile cRefs; +} RTTHREADCTXHOOKINT; +typedef RTTHREADCTXHOOKINT *PRTTHREADCTXHOOKINT; + + +/********************************************************************************************************************************* +* Defined Constants And Macros * +*********************************************************************************************************************************/ +/** Validates a hook handle and returns rc if not valid. */ +#define RTTHREADCTX_VALID_RETURN_RC(pThis, rc) \ + do { \ + AssertPtrReturn((pThis), (rc)); \ + AssertReturn((pThis)->u32Magic == RTTHREADCTXHOOKINT_MAGIC, (rc)); \ + AssertReturn((pThis)->cRefs > 0, (rc)); \ + } while (0) + + +/** + * Hook function for the thread-save event. + * + * @param pvThreadCtxInt Opaque pointer to the internal hook object. + * + * @remarks Called with the with preemption disabled! + */ +static void rtThreadCtxHookSolOut(void *pvThreadCtxInt) +{ + PRTTHREADCTXHOOKINT pThis = (PRTTHREADCTXHOOKINT)pvThreadCtxInt; + AssertPtr(pThis); + Assert(!RTThreadPreemptIsEnabled(NIL_RTTHREAD)); + Assert(pThis->cRefs > 0); + + if (pThis->fEnabled) + { + Assert(pThis->pfnCallback); + pThis->pfnCallback(RTTHREADCTXEVENT_OUT, pThis->pvUser); + } +} + + +/** + * Hook function for the thread-restore event. + * + * @param pvThreadCtxInt Opaque pointer to the internal hook object. + * + * @remarks Called with preemption disabled! + */ +static void rtThreadCtxHookSolIn(void *pvThreadCtxInt) +{ + PRTTHREADCTXHOOKINT pThis = (PRTTHREADCTXHOOKINT)pvThreadCtxInt; + AssertPtr(pThis); + Assert(!RTThreadPreemptIsEnabled(NIL_RTTHREAD)); + Assert(pThis->cRefs > 0); + + if (pThis->fEnabled) + { + Assert(pThis->pfnCallback); + pThis->pfnCallback(RTTHREADCTXEVENT_IN, pThis->pvUser); + } +} + + +/** + * Hook function for the thread-free event. + * + * This is used for making sure the hook object is safely released - see + * RTThreadCtxHookRelease for details. + * + * @param pvThreadCtxInt Opaque pointer to the internal hook object. + * @param fIsExec Whether this event is triggered due to exec(). + */ +static void rtThreadCtxHookSolFree(void *pvThreadCtxInt, int fIsExec) +{ + PRTTHREADCTXHOOKINT pThis = (PRTTHREADCTXHOOKINT)pvThreadCtxInt; + AssertPtrReturnVoid(pThis); + AssertMsgReturnVoid(pThis->u32Magic == RTTHREADCTXHOOKINT_MAGIC, ("pThis->u32Magic=%RX32 pThis=%p\n", pThis->u32Magic, pThis)); + + uint32_t cRefs = ASMAtomicReadU32(&pThis->cRefs); + if (cRefs > 0) + { + cRefs = ASMAtomicDecU32(&pThis->cRefs); + if (!cRefs) + { + Assert(!pThis->fEnabled); + ASMAtomicWriteU32(&pThis->u32Magic, ~RTTHREADCTXHOOKINT_MAGIC); + RTMemFree(pThis); + } + } + else + { + /* Should never happen. */ + AssertMsgFailed(("rtThreadCtxHookSolFree with cRefs=0 pThis=%p\n", pThis)); + } +} + + +RTDECL(int) RTThreadCtxHookCreate(PRTTHREADCTXHOOK phCtxHook, uint32_t fFlags, PFNRTTHREADCTXHOOK pfnCallback, void *pvUser) +{ + /* + * Validate input. + */ + PRTTHREADCTXHOOKINT pThis; + Assert(RTThreadPreemptIsEnabled(NIL_RTTHREAD)); + AssertPtrReturn(pfnCallback, VERR_INVALID_POINTER); + AssertReturn(fFlags == 0, VERR_INVALID_FLAGS); + + /* + * Allocate and initialize a new hook. + */ + pThis = (PRTTHREADCTXHOOKINT)RTMemAllocZ(sizeof(*pThis)); + if (RT_UNLIKELY(!pThis)) + return VERR_NO_MEMORY; + pThis->u32Magic = RTTHREADCTXHOOKINT_MAGIC; + pThis->hOwner = RTThreadNativeSelf(); + pThis->pfnCallback = pfnCallback; + pThis->pvUser = pvUser; + pThis->fEnabled = false; + pThis->cRefs = 2; /* One reference for the thread, one for the caller. */ + + /* + * installctx() allocates memory and thus cannot be used in RTThreadCtxHookRegister() which can be used + * with preemption disabled. We allocate the context-hooks here and use 'fEnabled' to determine if we can + * invoke the consumer's hook or not. + */ + if (g_frtSolOldThreadCtx) + { + g_rtSolThreadCtx.Install.pfnSol_installctx_old(curthread, + pThis, + rtThreadCtxHookSolOut, /* save */ + rtThreadCtxHookSolIn, /* restore */ + NULL, /* fork */ + NULL, /* lwp_create */ + rtThreadCtxHookSolFree); + } + else + { + g_rtSolThreadCtx.Install.pfnSol_installctx(curthread, + pThis, + rtThreadCtxHookSolOut, /* save */ + rtThreadCtxHookSolIn, /* restore */ + NULL, /* fork */ + NULL, /* lwp_create */ + NULL, /* exit */ + rtThreadCtxHookSolFree); + } + + *phCtxHook = pThis; + return VINF_SUCCESS; +} + + +RTDECL(int) RTThreadCtxHookDestroy(RTTHREADCTXHOOK hCtxHook) +{ + /* + * Validate input, ignoring NIL. + */ + PRTTHREADCTXHOOKINT pThis = hCtxHook; + if (pThis == NIL_RTTHREADCTXHOOK) + return VINF_SUCCESS; + RTTHREADCTX_VALID_RETURN_RC(hCtxHook, VERR_INVALID_HANDLE); + Assert(RTThreadPreemptIsEnabled(NIL_RTTHREAD)); + Assert(!pThis->fEnabled || pThis->hOwner == RTThreadNativeSelf()); + + /* + * Make sure it's disabled. + */ + ASMAtomicWriteBool(&pThis->fEnabled, false); + + /* + * Decrement. + */ + uint32_t cRefs = ASMAtomicDecU32(&pThis->cRefs); + if ( cRefs == 1 + && pThis->hOwner == RTThreadNativeSelf()) + { + /* + * removectx() will invoke rtThreadCtxHookSolFree() and there is no way to bypass it and still use + * rtThreadCtxHookSolFree() at the same time. Hence the convulated reference counting. + * + * When this function is called from the owner thread and is the last reference, we call removectx() which + * will invoke rtThreadCtxHookSolFree() with cRefs = 1 and that will then free the hook object. + * + * When the function is called from a different thread, we simply decrement the reference. Whenever the + * ring-0 thread dies, Solaris will call rtThreadCtxHookSolFree() which will free the hook object. + */ + int rc; + if (g_frtSolOldThreadCtx) + { + rc = g_rtSolThreadCtx.Remove.pfnSol_removectx_old(curthread, + pThis, + rtThreadCtxHookSolOut, /* save */ + rtThreadCtxHookSolIn, /* restore */ + NULL, /* fork */ + NULL, /* lwp_create */ + rtThreadCtxHookSolFree); + } + else + { + rc = g_rtSolThreadCtx.Remove.pfnSol_removectx(curthread, + pThis, + rtThreadCtxHookSolOut, /* save */ + rtThreadCtxHookSolIn, /* restore */ + NULL, /* fork */ + NULL, /* lwp_create */ + NULL, /* exit */ + rtThreadCtxHookSolFree); + } + AssertMsg(rc, ("removectx() failed. rc=%d\n", rc)); + NOREF(rc); + +#if 0 /*def RT_STRICT - access after free */ + cRefs = ASMAtomicReadU32(&pThis->cRefs); + Assert(!cRefs); +#endif + cRefs = 0; + } + else if (!cRefs) + { + /* + * The ring-0 thread for this hook object has already died. Free up the object as we have no more references. + */ + Assert(pThis->hOwner != RTThreadNativeSelf()); + ASMAtomicWriteU32(&pThis->u32Magic, ~RTTHREADCTXHOOKINT_MAGIC); + RTMemFree(pThis); + } + + return cRefs; +} + + +RTDECL(int) RTThreadCtxHookEnable(RTTHREADCTXHOOK hCtxHook) +{ + /* + * Validate input. + */ + PRTTHREADCTXHOOKINT pThis = hCtxHook; + AssertPtr(pThis); + AssertMsgReturn(pThis->u32Magic == RTTHREADCTXHOOKINT_MAGIC, ("pThis->u32Magic=%RX32 pThis=%p\n", pThis->u32Magic, pThis), + VERR_INVALID_HANDLE); + Assert(pThis->hOwner == RTThreadNativeSelf()); + Assert(!pThis->fEnabled); + + /* + * Mark it as enabled. + */ + pThis->fEnabled = true; + + return VINF_SUCCESS; +} + + +RTDECL(int) RTThreadCtxHookDisable(RTTHREADCTXHOOK hCtxHook) +{ + /* + * Validate input. + */ + PRTTHREADCTXHOOKINT pThis = hCtxHook; + if (pThis != NIL_RTTHREADCTXHOOK) + { + AssertPtr(pThis); + AssertMsgReturn(pThis->u32Magic == RTTHREADCTXHOOKINT_MAGIC, ("pThis->u32Magic=%RX32 pThis=%p\n", pThis->u32Magic, pThis), + VERR_INVALID_HANDLE); + Assert(pThis->hOwner == RTThreadNativeSelf()); + + /* + * Mark it as disabled. + */ + pThis->fEnabled = false; + } + + return VINF_SUCCESS; +} + + +RTDECL(bool) RTThreadCtxHookIsEnabled(RTTHREADCTXHOOK hCtxHook) +{ + /* + * Validate input. + */ + PRTTHREADCTXHOOKINT pThis = hCtxHook; + if (pThis == NIL_RTTHREADCTXHOOK) + return false; + AssertPtr(pThis); + AssertMsgReturn(pThis->u32Magic == RTTHREADCTXHOOKINT_MAGIC, ("pThis->u32Magic=%RX32 pThis=%p\n", pThis->u32Magic, pThis), + false); + + return pThis->fEnabled; +} + diff --git a/src/VBox/Runtime/r0drv/solaris/time-r0drv-solaris.c b/src/VBox/Runtime/r0drv/solaris/time-r0drv-solaris.c new file mode 100644 index 00000000..81001b97 --- /dev/null +++ b/src/VBox/Runtime/r0drv/solaris/time-r0drv-solaris.c @@ -0,0 +1,80 @@ +/* $Id: time-r0drv-solaris.c $ */ +/** @file + * IPRT - Time, Ring-0 Driver, Solaris. + */ + +/* + * Copyright (C) 2006-2023 Oracle and/or its affiliates. + * + * This file is part of VirtualBox base platform packages, as + * available from https://www.virtualbox.org. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation, in version 3 of the + * License. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, see <https://www.gnu.org/licenses>. + * + * The contents of this file may alternatively be used under the terms + * of the Common Development and Distribution License Version 1.0 + * (CDDL), a copy of it is provided in the "COPYING.CDDL" file included + * in the VirtualBox distribution, in which case the provisions of the + * CDDL are applicable instead of those of the GPL. + * + * You may elect to license modified versions of this file under the + * terms and conditions of either the GPL or the CDDL or both. + * + * SPDX-License-Identifier: GPL-3.0-only OR CDDL-1.0 + */ + + +/********************************************************************************************************************************* +* Header Files * +*********************************************************************************************************************************/ +#define RTTIME_INCL_TIMESPEC +#include "the-solaris-kernel.h" +#include "internal/iprt.h" +#include <iprt/time.h> + + +RTDECL(uint64_t) RTTimeNanoTS(void) +{ + return (uint64_t)gethrtime(); +} + + +RTDECL(uint64_t) RTTimeMilliTS(void) +{ + return RTTimeNanoTS() / RT_NS_1MS; +} + + +RTDECL(uint64_t) RTTimeSystemNanoTS(void) +{ + return RTTimeNanoTS(); +} + + +RTDECL(uint64_t) RTTimeSystemMilliTS(void) +{ + return RTTimeNanoTS() / RT_NS_1MS; +} + + +RTDECL(PRTTIMESPEC) RTTimeNow(PRTTIMESPEC pTime) +{ + timestruc_t TimeSpec; + + mutex_enter(&tod_lock); + TimeSpec = tod_get(); + mutex_exit(&tod_lock); + return RTTimeSpecSetNano(pTime, (uint64_t)TimeSpec.tv_sec * RT_NS_1SEC + TimeSpec.tv_nsec); +} + diff --git a/src/VBox/Runtime/r0drv/solaris/timer-r0drv-solaris.c b/src/VBox/Runtime/r0drv/solaris/timer-r0drv-solaris.c new file mode 100644 index 00000000..b415201d --- /dev/null +++ b/src/VBox/Runtime/r0drv/solaris/timer-r0drv-solaris.c @@ -0,0 +1,660 @@ +/* $Id: timer-r0drv-solaris.c $ */ +/** @file + * IPRT - Timer, Ring-0 Driver, Solaris. + */ + +/* + * Copyright (C) 2006-2023 Oracle and/or its affiliates. + * + * This file is part of VirtualBox base platform packages, as + * available from https://www.virtualbox.org. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation, in version 3 of the + * License. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, see <https://www.gnu.org/licenses>. + * + * The contents of this file may alternatively be used under the terms + * of the Common Development and Distribution License Version 1.0 + * (CDDL), a copy of it is provided in the "COPYING.CDDL" file included + * in the VirtualBox distribution, in which case the provisions of the + * CDDL are applicable instead of those of the GPL. + * + * You may elect to license modified versions of this file under the + * terms and conditions of either the GPL or the CDDL or both. + * + * SPDX-License-Identifier: GPL-3.0-only OR CDDL-1.0 + */ + + +/********************************************************************************************************************************* +* Header Files * +*********************************************************************************************************************************/ +#include "the-solaris-kernel.h" +#include "internal/iprt.h" +#include <iprt/timer.h> + +#include <iprt/asm.h> +#if defined(RT_ARCH_AMD64) || defined(RT_ARCH_X86) +# include <iprt/asm-amd64-x86.h> +#endif +#include <iprt/assert.h> +#include <iprt/err.h> +#include <iprt/mem.h> +#include <iprt/mp.h> +#include <iprt/spinlock.h> +#include <iprt/time.h> +#include <iprt/thread.h> +#include "internal/magics.h" + + +/********************************************************************************************************************************* +* Structures and Typedefs * +*********************************************************************************************************************************/ +/** + * The internal representation of a Solaris timer handle. + */ +typedef struct RTTIMER +{ + /** Magic. + * This is RTTIMER_MAGIC, but changes to something else before the timer + * is destroyed to indicate clearly that thread should exit. */ + uint32_t volatile u32Magic; + /** Reference counter. */ + uint32_t volatile cRefs; + /** Flag indicating that the timer is suspended (hCyclicId should be + * CYCLIC_NONE). */ + bool volatile fSuspended; + /** Flag indicating that the timer was suspended from the timer callback and + * therefore the hCyclicId may still be valid. */ + bool volatile fSuspendedFromTimer; + /** Flag indicating that the timer interval was changed and that it requires + * manual expiration time programming for each callout. */ + bool volatile fIntervalChanged; + /** Whether the timer must run on all CPUs or not. */ + uint8_t fAllCpus; + /** Whether the timer must run on a specific CPU or not. */ + uint8_t fSpecificCpu; + /** The CPU it must run on if fSpecificCpu is set. */ + uint32_t iCpu; + /** The nano second interval for repeating timers. */ + uint64_t volatile cNsInterval; + /** Cyclic timer Id. This is CYCLIC_NONE if no active timer. + * @remarks Please keep in mind that cyclic may call us back before the + * cyclic_add/cyclic_add_omni functions returns, so don't use this + * unguarded with cyclic_reprogram. */ + cyclic_id_t hCyclicId; + /** The user callback. */ + PFNRTTIMER pfnTimer; + /** The argument for the user callback. */ + void *pvUser; + /** Union with timer type specific data. */ + union + { + /** Single timer (fAllCpus == false). */ + struct + { + /** Timer ticks. */ + uint64_t u64Tick; + /** The next tick when fIntervalChanged is true, otherwise 0. */ + uint64_t nsNextTick; + /** The (interrupt) thread currently active in the callback. */ + kthread_t * volatile pActiveThread; + } Single; + + /** Omni timer (fAllCpus == true). */ + struct + { + /** Absolute timestamp of when the timer should fire first when starting up. */ + uint64_t u64When; + /** Array of per CPU data (variable size). */ + struct + { + /** Timer ticks (reinitialized when online'd). */ + uint64_t u64Tick; + /** The (interrupt) thread currently active in the callback. */ + kthread_t * volatile pActiveThread; + /** The next tick when fIntervalChanged is true, otherwise 0. */ + uint64_t nsNextTick; + } aPerCpu[1]; + } Omni; + } u; +} RTTIMER; + + +/********************************************************************************************************************************* +* Defined Constants And Macros * +*********************************************************************************************************************************/ +/** Validates that the timer is valid. */ +#define RTTIMER_ASSERT_VALID_RET(pTimer) \ + do \ + { \ + AssertPtrReturn(pTimer, VERR_INVALID_HANDLE); \ + AssertMsgReturn((pTimer)->u32Magic == RTTIMER_MAGIC, ("pTimer=%p u32Magic=%x expected %x\n", (pTimer), (pTimer)->u32Magic, RTTIMER_MAGIC), \ + VERR_INVALID_HANDLE); \ + } while (0) + + +/********************************************************************************************************************************* +* Internal Functions * +*********************************************************************************************************************************/ +static void rtTimerSolSingleCallbackWrapper(void *pvArg); +static void rtTimerSolStopIt(PRTTIMER pTimer); + + +/** + * Retains a reference to the timer. + * + * @returns New reference counter value. + * @param pTimer The timer. + */ +DECLINLINE(uint32_t) rtTimerSolRetain(PRTTIMER pTimer) +{ + return ASMAtomicIncU32(&pTimer->cRefs); +} + + +/** + * Destroys the timer when the reference counter has reached zero. + * + * @returns 0 (new references counter value). + * @param pTimer The timer. + */ +static uint32_t rtTimeSolReleaseCleanup(PRTTIMER pTimer) +{ + Assert(pTimer->hCyclicId == CYCLIC_NONE); + ASMAtomicWriteU32(&pTimer->u32Magic, ~RTTIMER_MAGIC); + RTMemFree(pTimer); + return 0; +} + + +/** + * Releases a reference to the timer. + * + * @returns New reference counter value. + * @param pTimer The timer. + */ +DECLINLINE(uint32_t) rtTimerSolRelease(PRTTIMER pTimer) +{ + uint32_t cRefs = ASMAtomicDecU32(&pTimer->cRefs); + if (!cRefs) + return rtTimeSolReleaseCleanup(pTimer); + return cRefs; +} + + +/** + * Callback wrapper for single-CPU timers. + * + * @param pvArg Opaque pointer to the timer. + * + * @remarks This will be executed in interrupt context but only at the specified + * level i.e. CY_LOCK_LEVEL in our case. We -CANNOT- call into the + * cyclic subsystem here, neither should pfnTimer(). + */ +static void rtTimerSolSingleCallbackWrapper(void *pvArg) +{ + PRTTIMER pTimer = (PRTTIMER)pvArg; + AssertPtrReturnVoid(pTimer); + Assert(!RTThreadPreemptIsEnabled(NIL_RTTHREAD)); + Assert(!pTimer->fAllCpus); + + /* Make sure one-shots do not fire another time. */ + Assert( !pTimer->fSuspended + || pTimer->cNsInterval != 0); + + if (!pTimer->fSuspendedFromTimer) + { + /* Make sure we are firing on the right CPU. */ + Assert( !pTimer->fSpecificCpu + || pTimer->iCpu == RTMpCpuId()); + + /* For one-shot, we may allow the callback to restart them. */ + if (pTimer->cNsInterval == 0) + pTimer->fSuspendedFromTimer = true; + + /* + * Perform the callout. + */ + pTimer->u.Single.pActiveThread = curthread; + + uint64_t u64Tick = ++pTimer->u.Single.u64Tick; + pTimer->pfnTimer(pTimer, pTimer->pvUser, u64Tick); + + pTimer->u.Single.pActiveThread = NULL; + + if (RT_LIKELY(!pTimer->fSuspendedFromTimer)) + { + if ( !pTimer->fIntervalChanged + || RT_UNLIKELY(pTimer->hCyclicId == CYCLIC_NONE)) + return; + + /* + * The interval was changed, we need to set the expiration time + * ourselves before returning. This comes at a slight cost, + * which is why we don't do it all the time. + */ + if (pTimer->u.Single.nsNextTick) + pTimer->u.Single.nsNextTick += ASMAtomicUoReadU64(&pTimer->cNsInterval); + else + pTimer->u.Single.nsNextTick = RTTimeSystemNanoTS() + ASMAtomicUoReadU64(&pTimer->cNsInterval); + cyclic_reprogram(pTimer->hCyclicId, pTimer->u.Single.nsNextTick); + return; + } + + /* + * The timer has been suspended, set expiration time to infinitiy. + */ + } + if (RT_LIKELY(pTimer->hCyclicId != CYCLIC_NONE)) + cyclic_reprogram(pTimer->hCyclicId, CY_INFINITY); +} + + +/** + * Callback wrapper for Omni-CPU timers. + * + * @param pvArg Opaque pointer to the timer. + * + * @remarks This will be executed in interrupt context but only at the specified + * level i.e. CY_LOCK_LEVEL in our case. We -CANNOT- call into the + * cyclic subsystem here, neither should pfnTimer(). + */ +static void rtTimerSolOmniCallbackWrapper(void *pvArg) +{ + PRTTIMER pTimer = (PRTTIMER)pvArg; + AssertPtrReturnVoid(pTimer); + Assert(!RTThreadPreemptIsEnabled(NIL_RTTHREAD)); + Assert(pTimer->fAllCpus); + + if (!pTimer->fSuspendedFromTimer) + { + /* + * Perform the callout. + */ + uint32_t const iCpu = CPU->cpu_id; + + pTimer->u.Omni.aPerCpu[iCpu].pActiveThread = curthread; + uint64_t u64Tick = ++pTimer->u.Omni.aPerCpu[iCpu].u64Tick; + + pTimer->pfnTimer(pTimer, pTimer->pvUser, u64Tick); + + pTimer->u.Omni.aPerCpu[iCpu].pActiveThread = NULL; + + if (RT_LIKELY(!pTimer->fSuspendedFromTimer)) + { + if ( !pTimer->fIntervalChanged + || RT_UNLIKELY(pTimer->hCyclicId == CYCLIC_NONE)) + return; + + /* + * The interval was changed, we need to set the expiration time + * ourselves before returning. This comes at a slight cost, + * which is why we don't do it all the time. + * + * Note! The cyclic_reprogram call only affects the omni cyclic + * component for this CPU. + */ + if (pTimer->u.Omni.aPerCpu[iCpu].nsNextTick) + pTimer->u.Omni.aPerCpu[iCpu].nsNextTick += ASMAtomicUoReadU64(&pTimer->cNsInterval); + else + pTimer->u.Omni.aPerCpu[iCpu].nsNextTick = RTTimeSystemNanoTS() + ASMAtomicUoReadU64(&pTimer->cNsInterval); + cyclic_reprogram(pTimer->hCyclicId, pTimer->u.Omni.aPerCpu[iCpu].nsNextTick); + return; + } + + /* + * The timer has been suspended, set expiration time to infinitiy. + */ + } + if (RT_LIKELY(pTimer->hCyclicId != CYCLIC_NONE)) + cyclic_reprogram(pTimer->hCyclicId, CY_INFINITY); +} + + +/** + * Omni-CPU cyclic online event. This is called before the omni cycle begins to + * fire on the specified CPU. + * + * @param pvArg Opaque pointer to the timer. + * @param pCpu Pointer to the CPU on which it will fire. + * @param pCyclicHandler Pointer to a cyclic handler to add to the CPU + * specified in @a pCpu. + * @param pCyclicTime Pointer to the cyclic time and interval object. + * + * @remarks We -CANNOT- call back into the cyclic subsystem here, we can however + * block (sleep). + */ +static void rtTimerSolOmniCpuOnline(void *pvArg, cpu_t *pCpu, cyc_handler_t *pCyclicHandler, cyc_time_t *pCyclicTime) +{ + PRTTIMER pTimer = (PRTTIMER)pvArg; + AssertPtrReturnVoid(pTimer); + AssertPtrReturnVoid(pCpu); + AssertPtrReturnVoid(pCyclicHandler); + AssertPtrReturnVoid(pCyclicTime); + uint32_t const iCpu = pCpu->cpu_id; /* Note! CPU is not necessarily the same as pCpu. */ + + pTimer->u.Omni.aPerCpu[iCpu].u64Tick = 0; + pTimer->u.Omni.aPerCpu[iCpu].nsNextTick = 0; + + pCyclicHandler->cyh_func = (cyc_func_t)rtTimerSolOmniCallbackWrapper; + pCyclicHandler->cyh_arg = pTimer; + pCyclicHandler->cyh_level = CY_LOCK_LEVEL; + + uint64_t u64Now = RTTimeSystemNanoTS(); + if (pTimer->u.Omni.u64When < u64Now) + pCyclicTime->cyt_when = u64Now + pTimer->cNsInterval / 2; + else + pCyclicTime->cyt_when = pTimer->u.Omni.u64When; + + pCyclicTime->cyt_interval = pTimer->cNsInterval; +} + + +RTDECL(int) RTTimerCreateEx(PRTTIMER *ppTimer, uint64_t u64NanoInterval, uint32_t fFlags, PFNRTTIMER pfnTimer, void *pvUser) +{ + RT_ASSERT_PREEMPTIBLE(); + *ppTimer = NULL; + + /* + * Validate flags. + */ + if (!RTTIMER_FLAGS_ARE_VALID(fFlags)) + return VERR_INVALID_PARAMETER; + + if ( (fFlags & RTTIMER_FLAGS_CPU_SPECIFIC) + && (fFlags & RTTIMER_FLAGS_CPU_ALL) != RTTIMER_FLAGS_CPU_ALL + && !RTMpIsCpuPossible(RTMpCpuIdFromSetIndex(fFlags & RTTIMER_FLAGS_CPU_MASK))) + return VERR_CPU_NOT_FOUND; + + /* One-shot omni timers are not supported by the cyclic system. */ + if ( (fFlags & RTTIMER_FLAGS_CPU_ALL) == RTTIMER_FLAGS_CPU_ALL + && u64NanoInterval == 0) + return VERR_NOT_SUPPORTED; + + /* + * Allocate and initialize the timer handle. The omni variant has a + * variable sized array of ticks counts, thus the size calculation. + */ + PRTTIMER pTimer = (PRTTIMER)RTMemAllocZ( (fFlags & RTTIMER_FLAGS_CPU_ALL) == RTTIMER_FLAGS_CPU_ALL + ? RT_UOFFSETOF_DYN(RTTIMER, u.Omni.aPerCpu[RTMpGetCount()]) + : sizeof(RTTIMER)); + if (!pTimer) + return VERR_NO_MEMORY; + + pTimer->u32Magic = RTTIMER_MAGIC; + pTimer->cRefs = 1; + pTimer->fSuspended = true; + pTimer->fSuspendedFromTimer = false; + pTimer->fIntervalChanged = false; + if ((fFlags & RTTIMER_FLAGS_CPU_ALL) == RTTIMER_FLAGS_CPU_ALL) + { + pTimer->fAllCpus = true; + pTimer->fSpecificCpu = false; + pTimer->iCpu = UINT32_MAX; + } + else if (fFlags & RTTIMER_FLAGS_CPU_SPECIFIC) + { + pTimer->fAllCpus = false; + pTimer->fSpecificCpu = true; + pTimer->iCpu = fFlags & RTTIMER_FLAGS_CPU_MASK; /* ASSUMES: index == cpuid */ + } + else + { + pTimer->fAllCpus = false; + pTimer->fSpecificCpu = false; + pTimer->iCpu = UINT32_MAX; + } + pTimer->cNsInterval = u64NanoInterval; + pTimer->pfnTimer = pfnTimer; + pTimer->pvUser = pvUser; + pTimer->hCyclicId = CYCLIC_NONE; + + *ppTimer = pTimer; + return VINF_SUCCESS; +} + + +/** + * Checks if the calling thread is currently executing the timer proceduce for + * the given timer. + * + * @returns true if it is, false if it isn't. + * @param pTimer The timer in question. + */ +DECLINLINE(bool) rtTimerSolIsCallingFromTimerProc(PRTTIMER pTimer) +{ + kthread_t *pCurThread = curthread; + AssertReturn(pCurThread, false); /* serious paranoia */ + + if (!pTimer->fAllCpus) + return pTimer->u.Single.pActiveThread == pCurThread; + return pTimer->u.Omni.aPerCpu[CPU->cpu_id].pActiveThread == pCurThread; +} + + +RTDECL(int) RTTimerDestroy(PRTTIMER pTimer) +{ + if (pTimer == NULL) + return VINF_SUCCESS; + RTTIMER_ASSERT_VALID_RET(pTimer); + RT_ASSERT_INTS_ON(); + + /* + * It is not possible to destroy a timer from it's callback function. + * Cyclic makes that impossible (or at least extremely risky). + */ + AssertReturn(!rtTimerSolIsCallingFromTimerProc(pTimer), VERR_INVALID_CONTEXT); + + /* + * Invalidate the handle, make sure it's stopped and free the associated resources. + */ + ASMAtomicWriteU32(&pTimer->u32Magic, ~RTTIMER_MAGIC); + + if ( !pTimer->fSuspended + || pTimer->hCyclicId != CYCLIC_NONE) /* 2nd check shouldn't happen */ + rtTimerSolStopIt(pTimer); + + rtTimerSolRelease(pTimer); + return VINF_SUCCESS; +} + + +RTDECL(int) RTTimerStart(PRTTIMER pTimer, uint64_t u64First) +{ + RTTIMER_ASSERT_VALID_RET(pTimer); + RT_ASSERT_INTS_ON(); + + /* + * It's not possible to restart a one-shot time from it's callback function, + * at least not at the moment. + */ + AssertReturn(!rtTimerSolIsCallingFromTimerProc(pTimer), VERR_INVALID_CONTEXT); + + mutex_enter(&cpu_lock); + + /* + * Make sure it's not active already. If it was suspended from a timer + * callback function, we need to do some cleanup work here before we can + * restart the timer. + */ + if (!pTimer->fSuspended) + { + if (!pTimer->fSuspendedFromTimer) + { + mutex_exit(&cpu_lock); + return VERR_TIMER_ACTIVE; + } + cyclic_remove(pTimer->hCyclicId); + pTimer->hCyclicId = CYCLIC_NONE; + } + + pTimer->fSuspended = false; + pTimer->fSuspendedFromTimer = false; + pTimer->fIntervalChanged = false; + if (pTimer->fAllCpus) + { + /* + * Setup omni (all CPU) timer. The Omni-CPU online event will fire + * and from there we setup periodic timers per CPU. + */ + pTimer->u.Omni.u64When = RTTimeSystemNanoTS() + (u64First ? u64First : pTimer->cNsInterval); + + cyc_omni_handler_t HandlerOmni; + HandlerOmni.cyo_online = rtTimerSolOmniCpuOnline; + HandlerOmni.cyo_offline = NULL; + HandlerOmni.cyo_arg = pTimer; + + pTimer->hCyclicId = cyclic_add_omni(&HandlerOmni); + } + else + { + cyc_handler_t Handler; + cyc_time_t FireTime; + + /* + * Setup a single CPU timer. If a specific CPU was requested, it + * must be online or the timer cannot start. + */ + if ( pTimer->fSpecificCpu + && !RTMpIsCpuOnline(pTimer->iCpu)) /* ASSUMES: index == cpuid */ + { + pTimer->fSuspended = true; + + mutex_exit(&cpu_lock); + return VERR_CPU_OFFLINE; + } + + Handler.cyh_func = (cyc_func_t)rtTimerSolSingleCallbackWrapper; + Handler.cyh_arg = pTimer; + Handler.cyh_level = CY_LOCK_LEVEL; + + /* + * Use a large interval (1 hour) so that we don't get a timer-callback between + * cyclic_add() and cyclic_bind(). Program the correct interval once cyclic_bind() is done. + * See @bugref{7691#c20}. + */ + if (!pTimer->fSpecificCpu) + FireTime.cyt_when = RTTimeSystemNanoTS() + u64First; + else + FireTime.cyt_when = RTTimeSystemNanoTS() + u64First + RT_NS_1HOUR; + FireTime.cyt_interval = pTimer->cNsInterval != 0 + ? pTimer->cNsInterval + : CY_INFINITY /* Special value, see cyclic_fire(). */; + pTimer->u.Single.u64Tick = 0; + pTimer->u.Single.nsNextTick = 0; + + pTimer->hCyclicId = cyclic_add(&Handler, &FireTime); + if (pTimer->fSpecificCpu) + { + cyclic_bind(pTimer->hCyclicId, cpu[pTimer->iCpu], NULL /* cpupart */); + cyclic_reprogram(pTimer->hCyclicId, RTTimeSystemNanoTS() + u64First); + } + } + + mutex_exit(&cpu_lock); + return VINF_SUCCESS; +} + + +/** + * Worker common for RTTimerStop and RTTimerDestroy. + * + * @param pTimer The timer to stop. + */ +static void rtTimerSolStopIt(PRTTIMER pTimer) +{ + mutex_enter(&cpu_lock); + + pTimer->fSuspended = true; + if (pTimer->hCyclicId != CYCLIC_NONE) + { + cyclic_remove(pTimer->hCyclicId); + pTimer->hCyclicId = CYCLIC_NONE; + } + pTimer->fSuspendedFromTimer = false; + + mutex_exit(&cpu_lock); +} + + +RTDECL(int) RTTimerStop(PRTTIMER pTimer) +{ + RTTIMER_ASSERT_VALID_RET(pTimer); + RT_ASSERT_INTS_ON(); + + if (pTimer->fSuspended) + return VERR_TIMER_SUSPENDED; + + /* Trying the cpu_lock stuff and calling cyclic_remove may deadlock + the system, so just mark the timer as suspened and deal with it in + the callback wrapper function above. */ + if (rtTimerSolIsCallingFromTimerProc(pTimer)) + pTimer->fSuspendedFromTimer = true; + else + rtTimerSolStopIt(pTimer); + + return VINF_SUCCESS; +} + + +RTDECL(int) RTTimerChangeInterval(PRTTIMER pTimer, uint64_t u64NanoInterval) +{ + /* + * Validate. + */ + RTTIMER_ASSERT_VALID_RET(pTimer); + AssertReturn(u64NanoInterval > 0, VERR_INVALID_PARAMETER); + AssertReturn(u64NanoInterval < UINT64_MAX / 8, VERR_INVALID_PARAMETER); + AssertReturn(pTimer->cNsInterval, VERR_INVALID_STATE); + + if (pTimer->fSuspended || pTimer->fSuspendedFromTimer) + pTimer->cNsInterval = u64NanoInterval; + else + { + ASMAtomicWriteU64(&pTimer->cNsInterval, u64NanoInterval); + ASMAtomicWriteBool(&pTimer->fIntervalChanged, true); + + if ( !pTimer->fAllCpus + && !pTimer->u.Single.nsNextTick + && pTimer->hCyclicId != CYCLIC_NONE + && rtTimerSolIsCallingFromTimerProc(pTimer)) + pTimer->u.Single.nsNextTick = RTTimeSystemNanoTS(); + } + + return VINF_SUCCESS; +} + + +RTDECL(uint32_t) RTTimerGetSystemGranularity(void) +{ + return nsec_per_tick; +} + + +RTDECL(int) RTTimerRequestSystemGranularity(uint32_t u32Request, uint32_t *pu32Granted) +{ + return VERR_NOT_SUPPORTED; +} + + +RTDECL(int) RTTimerReleaseSystemGranularity(uint32_t u32Granted) +{ + return VERR_NOT_SUPPORTED; +} + + +RTDECL(bool) RTTimerCanDoHighResolution(void) +{ + return true; +} + |