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|
/* $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;
}
|
