diff options
Diffstat (limited to 'src/VBox/Additions/common/VBoxGuest/VBoxGuest-solaris.c')
| -rw-r--r-- | src/VBox/Additions/common/VBoxGuest/VBoxGuest-solaris.c | 1138 |
1 files changed, 1138 insertions, 0 deletions
diff --git a/src/VBox/Additions/common/VBoxGuest/VBoxGuest-solaris.c b/src/VBox/Additions/common/VBoxGuest/VBoxGuest-solaris.c new file mode 100644 index 00000000..a56bb253 --- /dev/null +++ b/src/VBox/Additions/common/VBoxGuest/VBoxGuest-solaris.c @@ -0,0 +1,1138 @@ +/* $Id: VBoxGuest-solaris.c $ */ +/** @file + * VirtualBox Guest Additions Driver for Solaris. + */ + +/* + * Copyright (C) 2007-2022 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/conf.h> +#include <sys/modctl.h> +#include <sys/mutex.h> +#include <sys/pci.h> +#include <sys/stat.h> +#include <sys/ddi.h> +#include <sys/ddi_intr.h> +#include <sys/sunddi.h> +#include <sys/open.h> +#include <sys/sunldi.h> +#include <sys/policy.h> +#include <sys/file.h> +#undef u /* /usr/include/sys/user.h:249:1 is where this is defined to (curproc->p_user). very cool. */ + +#include "VBoxGuestInternal.h" +#include <VBox/log.h> +#include <VBox/version.h> +#include <iprt/assert.h> +#include <iprt/initterm.h> +#include <iprt/process.h> +#include <iprt/mem.h> +#include <iprt/cdefs.h> +#include <iprt/asm.h> + + +/********************************************************************************************************************************* +* Defined Constants And Macros * +*********************************************************************************************************************************/ +/** The module name. */ +#define DEVICE_NAME "vboxguest" +/** The module description as seen in 'modinfo'. */ +#define DEVICE_DESC "VirtualBox GstDrv" + + +/********************************************************************************************************************************* +* Internal Functions * +*********************************************************************************************************************************/ +static int vgdrvSolarisOpen(dev_t *pDev, int fFlag, int fType, cred_t *pCred); +static int vgdrvSolarisClose(dev_t Dev, int fFlag, int fType, cred_t *pCred); +static int vgdrvSolarisRead(dev_t Dev, struct uio *pUio, cred_t *pCred); +static int vgdrvSolarisWrite(dev_t Dev, struct uio *pUio, cred_t *pCred); +static int vgdrvSolarisIOCtl(dev_t Dev, int iCmd, intptr_t pArg, int Mode, cred_t *pCred, int *pVal); +static int vgdrvSolarisIOCtlSlow(PVBOXGUESTSESSION pSession, int iCmd, int Mode, intptr_t iArgs); +static int vgdrvSolarisPoll(dev_t Dev, short fEvents, int fAnyYet, short *pReqEvents, struct pollhead **ppPollHead); + +static int vgdrvSolarisGetInfo(dev_info_t *pDip, ddi_info_cmd_t enmCmd, void *pArg, void **ppResult); +static int vgdrvSolarisAttach(dev_info_t *pDip, ddi_attach_cmd_t enmCmd); +static int vgdrvSolarisDetach(dev_info_t *pDip, ddi_detach_cmd_t enmCmd); +static int vgdrvSolarisQuiesce(dev_info_t *pDip); + +static int vgdrvSolarisAddIRQ(dev_info_t *pDip); +static void vgdrvSolarisRemoveIRQ(dev_info_t *pDip); +static uint_t vgdrvSolarisHighLevelISR(caddr_t Arg); +static uint_t vgdrvSolarisISR(caddr_t Arg); + + +/********************************************************************************************************************************* +* Structures and Typedefs * +*********************************************************************************************************************************/ +/** + * cb_ops: for drivers that support char/block entry points + */ +static struct cb_ops g_vgdrvSolarisCbOps = +{ + vgdrvSolarisOpen, + vgdrvSolarisClose, + nodev, /* b strategy */ + nodev, /* b dump */ + nodev, /* b print */ + vgdrvSolarisRead, + vgdrvSolarisWrite, + vgdrvSolarisIOCtl, + nodev, /* c devmap */ + nodev, /* c mmap */ + nodev, /* c segmap */ + vgdrvSolarisPoll, + ddi_prop_op, /* property ops */ + NULL, /* streamtab */ + D_NEW | D_MP, /* compat. flag */ + CB_REV /* revision */ +}; + +/** + * dev_ops: for driver device operations + */ +static struct dev_ops g_vgdrvSolarisDevOps = +{ + DEVO_REV, /* driver build revision */ + 0, /* ref count */ + vgdrvSolarisGetInfo, + nulldev, /* identify */ + nulldev, /* probe */ + vgdrvSolarisAttach, + vgdrvSolarisDetach, + nodev, /* reset */ + &g_vgdrvSolarisCbOps, + (struct bus_ops *)0, + nodev, /* power */ + vgdrvSolarisQuiesce +}; + +/** + * modldrv: export driver specifics to the kernel + */ +static struct modldrv g_vgdrvSolarisModule = +{ + &mod_driverops, /* extern from kernel */ + DEVICE_DESC " " VBOX_VERSION_STRING "r" RT_XSTR(VBOX_SVN_REV), + &g_vgdrvSolarisDevOps +}; + +/** + * modlinkage: export install/remove/info to the kernel + */ +static struct modlinkage g_vgdrvSolarisModLinkage = +{ + MODREV_1, /* loadable module system revision */ + &g_vgdrvSolarisModule, + NULL /* terminate array of linkage structures */ +}; + +/** + * State info for each open file handle. + */ +typedef struct +{ + /** Pointer to the session handle. */ + PVBOXGUESTSESSION pSession; + /** The process reference for posting signals */ + void *pvProcRef; +} vboxguest_state_t; + + +/********************************************************************************************************************************* +* Global Variables * +*********************************************************************************************************************************/ +/** Device handle (we support only one instance). */ +static dev_info_t *g_pDip = NULL; +/** Opaque pointer to file-descriptor states */ +static void *g_pvgdrvSolarisState = NULL; +/** Device extention & session data association structure. */ +static VBOXGUESTDEVEXT g_DevExt; +/** IO port handle. */ +static ddi_acc_handle_t g_PciIOHandle; +/** MMIO handle. */ +static ddi_acc_handle_t g_PciMMIOHandle; +/** IO Port. */ +static uint16_t g_uIOPortBase; +/** Address of the MMIO region.*/ +static caddr_t g_pMMIOBase; +/** Size of the MMIO region. */ +static off_t g_cbMMIO; +/** Pointer to an array of interrupt handles. */ +static ddi_intr_handle_t *g_pahIntrs; +/** Handle to the soft interrupt. */ +static ddi_softint_handle_t g_hSoftIntr; +/** The pollhead structure */ +static pollhead_t g_PollHead; +/** The IRQ Mutex */ +static kmutex_t g_IrqMtx; +/** The IRQ high-level Mutex. */ +static kmutex_t g_HighLevelIrqMtx; +/** Whether soft-ints are setup. */ +static bool g_fSoftIntRegistered = false; + +/** Additional IPRT function we need to drag in for vboxfs. */ +PFNRT g_Deps[] = +{ + (PFNRT)RTErrConvertToErrno, +}; + + +/** + * Kernel entry points + */ +int _init(void) +{ + /* + * Initialize IPRT R0 driver, which internally calls OS-specific r0 init. + */ + int rc = RTR0Init(0); + if (RT_SUCCESS(rc)) + { + PRTLOGGER pRelLogger; + static const char * const s_apszGroups[] = VBOX_LOGGROUP_NAMES; + rc = RTLogCreate(&pRelLogger, 0 /* fFlags */, "all", + "VBOX_RELEASE_LOG", RT_ELEMENTS(s_apszGroups), s_apszGroups, + RTLOGDEST_STDOUT | RTLOGDEST_DEBUGGER, NULL); + if (RT_SUCCESS(rc)) + RTLogRelSetDefaultInstance(pRelLogger); + else + cmn_err(CE_NOTE, "failed to initialize driver logging rc=%d!\n", rc); + + /* + * Prevent module autounloading. + */ + modctl_t *pModCtl = mod_getctl(&g_vgdrvSolarisModLinkage); + if (pModCtl) + pModCtl->mod_loadflags |= MOD_NOAUTOUNLOAD; + else + LogRel((DEVICE_NAME ": failed to disable autounloading!\n")); + + rc = ddi_soft_state_init(&g_pvgdrvSolarisState, sizeof(vboxguest_state_t), 1); + if (!rc) + { + rc = mod_install(&g_vgdrvSolarisModLinkage); + if (rc) + ddi_soft_state_fini(&g_pvgdrvSolarisState); + } + } + else + { + cmn_err(CE_NOTE, "_init: RTR0Init failed. rc=%d\n", rc); + return EINVAL; + } + + return rc; +} + + +int _fini(void) +{ + LogFlow((DEVICE_NAME ":_fini\n")); + int rc = mod_remove(&g_vgdrvSolarisModLinkage); + if (!rc) + ddi_soft_state_fini(&g_pvgdrvSolarisState); + + RTLogDestroy(RTLogRelSetDefaultInstance(NULL)); + RTLogDestroy(RTLogSetDefaultInstance(NULL)); + + if (!rc) + RTR0Term(); + return rc; +} + + +int _info(struct modinfo *pModInfo) +{ + /* LogFlow((DEVICE_NAME ":_info\n")); - Called too early, causing RTThreadPreemtIsEnabled warning. */ + return mod_info(&g_vgdrvSolarisModLinkage, pModInfo); +} + + +/** + * Attach entry point, to attach a device to the system or resume it. + * + * @param pDip The module structure instance. + * @param enmCmd Attach type (ddi_attach_cmd_t) + * + * @return corresponding solaris error code. + */ +static int vgdrvSolarisAttach(dev_info_t *pDip, ddi_attach_cmd_t enmCmd) +{ + LogFlow(("vgdrvSolarisAttach:\n")); + switch (enmCmd) + { + case DDI_ATTACH: + { + if (g_pDip) + { + LogRel(("vgdrvSolarisAttach: Only one instance supported.\n")); + return DDI_FAILURE; + } + + /* + * Enable resources for PCI access. + */ + ddi_acc_handle_t PciHandle; + int rc = pci_config_setup(pDip, &PciHandle); + if (rc == DDI_SUCCESS) + { + /* + * Map the register address space. + */ + caddr_t baseAddr; + ddi_device_acc_attr_t deviceAttr; + deviceAttr.devacc_attr_version = DDI_DEVICE_ATTR_V0; + deviceAttr.devacc_attr_endian_flags = DDI_NEVERSWAP_ACC; + deviceAttr.devacc_attr_dataorder = DDI_STRICTORDER_ACC; + deviceAttr.devacc_attr_access = DDI_DEFAULT_ACC; + rc = ddi_regs_map_setup(pDip, 1, &baseAddr, 0, 0, &deviceAttr, &g_PciIOHandle); + if (rc == DDI_SUCCESS) + { + /* + * Read size of the MMIO region. + */ + g_uIOPortBase = (uintptr_t)baseAddr; + rc = ddi_dev_regsize(pDip, 2, &g_cbMMIO); + if (rc == DDI_SUCCESS) + { + rc = ddi_regs_map_setup(pDip, 2, &g_pMMIOBase, 0, g_cbMMIO, &deviceAttr, &g_PciMMIOHandle); + if (rc == DDI_SUCCESS) + { + /* + * Call the common device extension initializer. + */ + rc = VGDrvCommonInitDevExt(&g_DevExt, g_uIOPortBase, g_pMMIOBase, g_cbMMIO, +#if ARCH_BITS == 64 + VBOXOSTYPE_Solaris_x64, +#else + VBOXOSTYPE_Solaris, +#endif + VMMDEV_EVENT_MOUSE_POSITION_CHANGED); + if (RT_SUCCESS(rc)) + { + /* + * Add IRQ of VMMDev. + */ + rc = vgdrvSolarisAddIRQ(pDip); + if (rc == DDI_SUCCESS) + { + /* + * Read host configuration. + */ + VGDrvCommonProcessOptionsFromHost(&g_DevExt); + + rc = ddi_create_minor_node(pDip, DEVICE_NAME, S_IFCHR, 0 /* instance */, DDI_PSEUDO, + 0 /* fFlags */); + if (rc == DDI_SUCCESS) + { + g_pDip = pDip; + pci_config_teardown(&PciHandle); + return DDI_SUCCESS; + } + + LogRel((DEVICE_NAME "::Attach: ddi_create_minor_node failed.\n")); + vgdrvSolarisRemoveIRQ(pDip); + } + else + LogRel((DEVICE_NAME "::Attach: vgdrvSolarisAddIRQ failed.\n")); + VGDrvCommonDeleteDevExt(&g_DevExt); + } + else + LogRel((DEVICE_NAME "::Attach: VGDrvCommonInitDevExt failed.\n")); + ddi_regs_map_free(&g_PciMMIOHandle); + } + else + LogRel((DEVICE_NAME "::Attach: ddi_regs_map_setup for MMIO region failed.\n")); + } + else + LogRel((DEVICE_NAME "::Attach: ddi_dev_regsize for MMIO region failed.\n")); + ddi_regs_map_free(&g_PciIOHandle); + } + else + LogRel((DEVICE_NAME "::Attach: ddi_regs_map_setup for IOport failed.\n")); + pci_config_teardown(&PciHandle); + } + else + LogRel((DEVICE_NAME "::Attach: pci_config_setup failed rc=%d.\n", rc)); + return DDI_FAILURE; + } + + case DDI_RESUME: + { + /** @todo implement resume for guest driver. */ + return DDI_SUCCESS; + } + + default: + return DDI_FAILURE; + } +} + + +/** + * Detach entry point, to detach a device to the system or suspend it. + * + * @param pDip The module structure instance. + * @param enmCmd Attach type (ddi_attach_cmd_t) + * + * @return corresponding solaris error code. + */ +static int vgdrvSolarisDetach(dev_info_t *pDip, ddi_detach_cmd_t enmCmd) +{ + LogFlow(("vgdrvSolarisDetach:\n")); + switch (enmCmd) + { + case DDI_DETACH: + { + vgdrvSolarisRemoveIRQ(pDip); + ddi_regs_map_free(&g_PciIOHandle); + ddi_regs_map_free(&g_PciMMIOHandle); + ddi_remove_minor_node(pDip, NULL); + VGDrvCommonDeleteDevExt(&g_DevExt); + g_pDip = NULL; + return DDI_SUCCESS; + } + + case DDI_SUSPEND: + { + /** @todo implement suspend for guest driver. */ + return DDI_SUCCESS; + } + + default: + return DDI_FAILURE; + } +} + + +/** + * Quiesce entry point, called by solaris kernel for disabling the device from + * generating any interrupts or doing in-bound DMA. + * + * @param pDip The module structure instance. + * + * @return corresponding solaris error code. + */ +static int vgdrvSolarisQuiesce(dev_info_t *pDip) +{ + int rc = ddi_intr_disable(g_pahIntrs[0]); + if (rc != DDI_SUCCESS) + return DDI_FAILURE; + + /** @todo What about HGCM/HGSMI touching guest-memory? */ + + return DDI_SUCCESS; +} + + +/** + * Info entry point, called by solaris kernel for obtaining driver info. + * + * @param pDip The module structure instance (do not use). + * @param enmCmd Information request type. + * @param pvArg Type specific argument. + * @param ppvResult Where to store the requested info. + * + * @return corresponding solaris error code. + */ +static int vgdrvSolarisGetInfo(dev_info_t *pDip, ddi_info_cmd_t enmCmd, void *pvArg, void **ppvResult) +{ + LogFlow(("vgdrvSolarisGetInfo:\n")); + + int rc = DDI_SUCCESS; + switch (enmCmd) + { + case DDI_INFO_DEVT2DEVINFO: + { + *ppvResult = (void *)g_pDip; + if (!*ppvResult) + rc = DDI_FAILURE; + break; + } + + case DDI_INFO_DEVT2INSTANCE: + { + /* There can only be a single-instance of this driver and thus its instance number is 0. */ + *ppvResult = (void *)0; + break; + } + + default: + rc = DDI_FAILURE; + break; + } + + NOREF(pvArg); + return rc; +} + + +/** + * User context entry points + * + * @remarks fFlags are the flags passed to open() or to ldi_open_by_name. In + * the latter case the FKLYR flag is added to indicate that the caller + * is a kernel component rather than user land. + */ +static int vgdrvSolarisOpen(dev_t *pDev, int fFlags, int fType, cred_t *pCred) +{ + int rc; + PVBOXGUESTSESSION pSession = NULL; + + LogFlow(("vgdrvSolarisOpen:\n")); + + /* + * Verify we are being opened as a character device. + */ + if (fType != OTYP_CHR) + return EINVAL; + + vboxguest_state_t *pState = NULL; + unsigned iOpenInstance; + for (iOpenInstance = 0; iOpenInstance < 4096; iOpenInstance++) + { + if ( !ddi_get_soft_state(g_pvgdrvSolarisState, iOpenInstance) /* faster */ + && ddi_soft_state_zalloc(g_pvgdrvSolarisState, iOpenInstance) == DDI_SUCCESS) + { + pState = ddi_get_soft_state(g_pvgdrvSolarisState, iOpenInstance); + break; + } + } + if (!pState) + { + Log(("vgdrvSolarisOpen: too many open instances.")); + return ENXIO; + } + + /* + * Create a new session. + * + * Note! The devfs inode with the gid isn't readily available here, so we cannot easily + * to the vbox group detection like on linux. Read config instead? + */ + if (!(fFlags & FKLYR)) + { + uint32_t fRequestor = VMMDEV_REQUESTOR_USERMODE | VMMDEV_REQUESTOR_TRUST_NOT_GIVEN; + if (crgetruid(pCred) == 0) + fRequestor |= VMMDEV_REQUESTOR_USR_ROOT; + else + fRequestor |= VMMDEV_REQUESTOR_USR_USER; + if (secpolicy_coreadm(pCred) == 0) + fRequestor |= VMMDEV_REQUESTOR_GRP_WHEEL; + /** @todo is there any way of detecting that the process belongs to someone on the physical console? + * secpolicy_console() [== PRIV_SYS_DEVICES] doesn't look quite right, or does it? */ + fRequestor |= VMMDEV_REQUESTOR_CON_DONT_KNOW; + fRequestor |= VMMDEV_REQUESTOR_NO_USER_DEVICE; /** @todo implement vboxuser device node. */ + + rc = VGDrvCommonCreateUserSession(&g_DevExt, fRequestor, &pSession); + } + else + rc = VGDrvCommonCreateKernelSession(&g_DevExt, &pSession); + if (RT_SUCCESS(rc)) + { + if (!(fFlags & FKLYR)) + pState->pvProcRef = proc_ref(); + else + pState->pvProcRef = NULL; + pState->pSession = pSession; + *pDev = makedevice(getmajor(*pDev), iOpenInstance); + Log(("vgdrvSolarisOpen: pSession=%p pState=%p pid=%d\n", pSession, pState, (int)RTProcSelf())); + return 0; + } + + /* Failed, clean up. */ + ddi_soft_state_free(g_pvgdrvSolarisState, iOpenInstance); + + LogRel((DEVICE_NAME "::Open: VGDrvCommonCreateUserSession failed. rc=%d\n", rc)); + return EFAULT; +} + + +static int vgdrvSolarisClose(dev_t Dev, int flag, int fType, cred_t *pCred) +{ + LogFlow(("vgdrvSolarisClose: pid=%d\n", (int)RTProcSelf())); + + PVBOXGUESTSESSION pSession = NULL; + vboxguest_state_t *pState = ddi_get_soft_state(g_pvgdrvSolarisState, getminor(Dev)); + if (!pState) + { + Log(("vgdrvSolarisClose: failed to get pState.\n")); + return EFAULT; + } + + if (pState->pvProcRef != NULL) + { + proc_unref(pState->pvProcRef); + pState->pvProcRef = NULL; + } + pSession = pState->pSession; + pState->pSession = NULL; + Log(("vgdrvSolarisClose: pSession=%p pState=%p\n", pSession, pState)); + ddi_soft_state_free(g_pvgdrvSolarisState, getminor(Dev)); + if (!pSession) + { + Log(("vgdrvSolarisClose: failed to get pSession.\n")); + return EFAULT; + } + + /* + * Close the session. + */ + if (pSession) + VGDrvCommonCloseSession(&g_DevExt, pSession); + return 0; +} + + +static int vgdrvSolarisRead(dev_t Dev, struct uio *pUio, cred_t *pCred) +{ + LogFlow((DEVICE_NAME "::Read\n")); + + vboxguest_state_t *pState = ddi_get_soft_state(g_pvgdrvSolarisState, getminor(Dev)); + if (!pState) + { + Log((DEVICE_NAME "::Close: failed to get pState.\n")); + return EFAULT; + } + + PVBOXGUESTSESSION pSession = pState->pSession; + uint32_t u32CurSeq = ASMAtomicUoReadU32(&g_DevExt.u32MousePosChangedSeq); + if (pSession->u32MousePosChangedSeq != u32CurSeq) + pSession->u32MousePosChangedSeq = u32CurSeq; + + return 0; +} + + +static int vgdrvSolarisWrite(dev_t Dev, struct uio *pUio, cred_t *pCred) +{ + LogFlow(("vgdrvSolarisWrite:\n")); + return 0; +} + + +/** @def IOCPARM_LEN + * Gets the length from the ioctl number. + * This is normally defined by sys/ioccom.h on BSD systems... + */ +#ifndef IOCPARM_LEN +# define IOCPARM_LEN(x) ( ((x) >> 16) & IOCPARM_MASK ) +#endif + + +/** + * Driver ioctl, an alternate entry point for this character driver. + * + * @param Dev Device number + * @param iCmd Operation identifier + * @param iArgs Arguments from user to driver + * @param Mode Information bitfield (read/write, address space etc.) + * @param pCred User credentials + * @param pVal Return value for calling process. + * + * @return corresponding solaris error code. + */ +static int vgdrvSolarisIOCtl(dev_t Dev, int iCmd, intptr_t iArgs, int Mode, cred_t *pCred, int *pVal) +{ + /* + * Get the session from the soft state item. + */ + vboxguest_state_t *pState = ddi_get_soft_state(g_pvgdrvSolarisState, getminor(Dev)); + if (!pState) + { + LogRel(("vgdrvSolarisIOCtl: no state data for %#x (%d)\n", Dev, getminor(Dev))); + return EINVAL; + } + + PVBOXGUESTSESSION pSession = pState->pSession; + if (!pSession) + { + LogRel(("vgdrvSolarisIOCtl: no session in state data for %#x (%d)\n", Dev, getminor(Dev))); + return DDI_SUCCESS; + } + + /* + * Deal with fast requests. + */ + if (VBGL_IOCTL_IS_FAST(iCmd)) + { + *pVal = VGDrvCommonIoCtlFast(iCmd, &g_DevExt, pSession); + return 0; + } + + /* + * It's kind of simple if this is a kernel session, take slow path if user land. + */ + if (pSession->R0Process == NIL_RTR0PROCESS) + { + if (IOCPARM_LEN(iCmd) == sizeof(VBGLREQHDR)) + { + PVBGLREQHDR pHdr = (PVBGLREQHDR)iArgs; + int rc; + if (iCmd != VBGL_IOCTL_IDC_DISCONNECT) + rc =VGDrvCommonIoCtl(iCmd, &g_DevExt, pSession, pHdr, RT_MAX(pHdr->cbIn, pHdr->cbOut)); + else + { + pState->pSession = NULL; + rc = VGDrvCommonIoCtl(iCmd, &g_DevExt, pSession, pHdr, RT_MAX(pHdr->cbIn, pHdr->cbOut)); + if (RT_FAILURE(rc)) + pState->pSession = pSession; + } + return rc; + } + } + + return vgdrvSolarisIOCtlSlow(pSession, iCmd, Mode, iArgs); +} + + +/** + * Worker for VBoxSupDrvIOCtl that takes the slow IOCtl functions. + * + * @returns Solaris errno. + * + * @param pSession The session. + * @param iCmd The IOCtl command. + * @param Mode Information bitfield (for specifying ownership of data) + * @param iArg User space address of the request buffer. + */ +static int vgdrvSolarisIOCtlSlow(PVBOXGUESTSESSION pSession, int iCmd, int Mode, intptr_t iArg) +{ + int rc; + uint32_t cbBuf = 0; + union + { + VBGLREQHDR Hdr; + uint8_t abBuf[64]; + } StackBuf; + PVBGLREQHDR pHdr; + + + /* + * Read the header. + */ + if (RT_UNLIKELY(IOCPARM_LEN(iCmd) != sizeof(StackBuf.Hdr))) + { + LogRel(("vgdrvSolarisIOCtlSlow: iCmd=%#x len %d expected %d\n", iCmd, IOCPARM_LEN(iCmd), sizeof(StackBuf.Hdr))); + return EINVAL; + } + rc = ddi_copyin((void *)iArg, &StackBuf.Hdr, sizeof(StackBuf.Hdr), Mode); + if (RT_UNLIKELY(rc)) + { + LogRel(("vgdrvSolarisIOCtlSlow: ddi_copyin(,%#lx,) failed; iCmd=%#x. rc=%d\n", iArg, iCmd, rc)); + return EFAULT; + } + if (RT_UNLIKELY(StackBuf.Hdr.uVersion != VBGLREQHDR_VERSION)) + { + LogRel(("vgdrvSolarisIOCtlSlow: bad header version %#x; iCmd=%#x\n", StackBuf.Hdr.uVersion, iCmd)); + return EINVAL; + } + cbBuf = RT_MAX(StackBuf.Hdr.cbIn, StackBuf.Hdr.cbOut); + if (RT_UNLIKELY( StackBuf.Hdr.cbIn < sizeof(StackBuf.Hdr) + || (StackBuf.Hdr.cbOut < sizeof(StackBuf.Hdr) && StackBuf.Hdr.cbOut != 0) + || cbBuf > _1M*16)) + { + LogRel(("vgdrvSolarisIOCtlSlow: max(%#x,%#x); iCmd=%#x\n", StackBuf.Hdr.cbIn, StackBuf.Hdr.cbOut, iCmd)); + return EINVAL; + } + + /* + * Buffer the request. + * + * Note! Common code revalidates the header sizes and version. So it's + * fine to read it once more. + */ + if (cbBuf <= sizeof(StackBuf)) + pHdr = &StackBuf.Hdr; + else + { + pHdr = RTMemTmpAlloc(cbBuf); + if (RT_UNLIKELY(!pHdr)) + { + LogRel(("vgdrvSolarisIOCtlSlow: failed to allocate buffer of %d bytes for iCmd=%#x.\n", cbBuf, iCmd)); + return ENOMEM; + } + } + rc = ddi_copyin((void *)iArg, pHdr, cbBuf, Mode); + if (RT_UNLIKELY(rc)) + { + LogRel(("vgdrvSolarisIOCtlSlow: copy_from_user(,%#lx, %#x) failed; iCmd=%#x. rc=%d\n", iArg, cbBuf, iCmd, rc)); + if (pHdr != &StackBuf.Hdr) + RTMemFree(pHdr); + return EFAULT; + } + + /* + * Process the IOCtl. + */ + rc = VGDrvCommonIoCtl(iCmd, &g_DevExt, pSession, pHdr, cbBuf); + + /* + * Copy ioctl data and output buffer back to user space. + */ + if (RT_SUCCESS(rc)) + { + uint32_t cbOut = pHdr->cbOut; + if (RT_UNLIKELY(cbOut > cbBuf)) + { + LogRel(("vgdrvSolarisIOCtlSlow: too much output! %#x > %#x; iCmd=%#x!\n", cbOut, cbBuf, iCmd)); + cbOut = cbBuf; + } + rc = ddi_copyout(pHdr, (void *)iArg, cbOut, Mode); + if (RT_UNLIKELY(rc != 0)) + { + /* this is really bad */ + LogRel(("vgdrvSolarisIOCtlSlow: ddi_copyout(,%p,%d) failed. rc=%d\n", (void *)iArg, cbBuf, rc)); + rc = EFAULT; + } + } + else + rc = EINVAL; + + if (pHdr != &StackBuf.Hdr) + RTMemTmpFree(pHdr); + return rc; +} + + +#if 0 +/** + * @note This code is duplicated on other platforms with variations, so please + * keep them all up to date when making changes! + */ +int VBOXCALL VBoxGuestIDC(void *pvSession, uintptr_t uReq, PVBGLREQHDR pReqHdr, size_t cbReq) +{ + /* + * Simple request validation (common code does the rest). + */ + int rc; + if ( RT_VALID_PTR(pReqHdr) + && cbReq >= sizeof(*pReqHdr)) + { + /* + * All requests except the connect one requires a valid session. + */ + PVBOXGUESTSESSION pSession = (PVBOXGUESTSESSION)pvSession; + if (pSession) + { + if ( RT_VALID_PTR(pSession) + && pSession->pDevExt == &g_DevExt) + rc = VGDrvCommonIoCtl(uReq, &g_DevExt, pSession, pReqHdr, cbReq); + else + rc = VERR_INVALID_HANDLE; + } + else if (uReq == VBGL_IOCTL_IDC_CONNECT) + { + rc = VGDrvCommonCreateKernelSession(&g_DevExt, &pSession); + if (RT_SUCCESS(rc)) + { + rc = VGDrvCommonIoCtl(uReq, &g_DevExt, pSession, pReqHdr, cbReq); + if (RT_FAILURE(rc)) + VGDrvCommonCloseSession(&g_DevExt, pSession); + } + } + else + rc = VERR_INVALID_HANDLE; + } + else + rc = VERR_INVALID_POINTER; + return rc; +} +#endif + + +static int vgdrvSolarisPoll(dev_t Dev, short fEvents, int fAnyYet, short *pReqEvents, struct pollhead **ppPollHead) +{ + LogFlow(("vgdrvSolarisPoll: fEvents=%d fAnyYet=%d\n", fEvents, fAnyYet)); + + vboxguest_state_t *pState = ddi_get_soft_state(g_pvgdrvSolarisState, getminor(Dev)); + if (RT_LIKELY(pState)) + { + PVBOXGUESTSESSION pSession = (PVBOXGUESTSESSION)pState->pSession; + uint32_t u32CurSeq = ASMAtomicUoReadU32(&g_DevExt.u32MousePosChangedSeq); + if (pSession->u32MousePosChangedSeq != u32CurSeq) + { + *pReqEvents |= (POLLIN | POLLRDNORM); + pSession->u32MousePosChangedSeq = u32CurSeq; + } + else + { + *pReqEvents = 0; + if (!fAnyYet) + *ppPollHead = &g_PollHead; + } + + return 0; + } + + Log(("vgdrvSolarisPoll: no state data for %d\n", getminor(Dev))); + return EINVAL; +} + + +/** + * Sets IRQ for VMMDev. + * + * @returns Solaris error code. + * @param pDip Pointer to the device info structure. + */ +static int vgdrvSolarisAddIRQ(dev_info_t *pDip) +{ + LogFlow(("vgdrvSolarisAddIRQ: pDip=%p\n", pDip)); + + /* Get the types of interrupt supported for this hardware. */ + int fIntrType = 0; + int rc = ddi_intr_get_supported_types(pDip, &fIntrType); + if (rc == DDI_SUCCESS) + { + /* We only support fixed interrupts at this point, not MSIs. */ + if (fIntrType & DDI_INTR_TYPE_FIXED) + { + /* Verify the number of interrupts supported by this device. There can only be one fixed interrupt. */ + int cIntrCount = 0; + rc = ddi_intr_get_nintrs(pDip, fIntrType, &cIntrCount); + if ( rc == DDI_SUCCESS + && cIntrCount == 1) + { + /* Allocated kernel memory for the interrupt handle. The allocation size is stored internally. */ + g_pahIntrs = RTMemAllocZ(cIntrCount * sizeof(ddi_intr_handle_t)); + if (g_pahIntrs) + { + /* Allocate the interrupt for this device and verify the allocation. */ + int cIntrAllocated; + rc = ddi_intr_alloc(pDip, g_pahIntrs, fIntrType, 0 /* interrupt number */, cIntrCount, &cIntrAllocated, + DDI_INTR_ALLOC_NORMAL); + if ( rc == DDI_SUCCESS + && cIntrAllocated == 1) + { + /* Get the interrupt priority assigned by the system. */ + uint_t uIntrPriority; + rc = ddi_intr_get_pri(g_pahIntrs[0], &uIntrPriority); + if (rc == DDI_SUCCESS) + { + /* Check if the interrupt priority is scheduler level or above, if so we need to use a high-level + and low-level interrupt handlers with corresponding mutexes. */ + cmn_err(CE_CONT, "!vboxguest: uIntrPriority=%d hilevel_pri=%d\n", uIntrPriority, ddi_intr_get_hilevel_pri()); + if (uIntrPriority >= ddi_intr_get_hilevel_pri()) + { + /* Initialize the high-level mutex. */ + mutex_init(&g_HighLevelIrqMtx, NULL /* pszDesc */, MUTEX_DRIVER, DDI_INTR_PRI(uIntrPriority)); + + /* Assign interrupt handler function to the interrupt handle. */ + rc = ddi_intr_add_handler(g_pahIntrs[0], (ddi_intr_handler_t *)&vgdrvSolarisHighLevelISR, + NULL /* pvArg1 */, NULL /* pvArg2 */); + + if (rc == DDI_SUCCESS) + { + /* Add the low-level interrupt handler. */ + rc = ddi_intr_add_softint(pDip, &g_hSoftIntr, DDI_INTR_SOFTPRI_MAX, + (ddi_intr_handler_t *)&vgdrvSolarisISR, NULL /* pvArg1 */); + if (rc == DDI_SUCCESS) + { + /* Initialize the low-level mutex at the corresponding level. */ + mutex_init(&g_IrqMtx, NULL /* pszDesc */, MUTEX_DRIVER, + DDI_INTR_PRI(DDI_INTR_SOFTPRI_MAX)); + + g_fSoftIntRegistered = true; + /* Enable the high-level interrupt. */ + rc = ddi_intr_enable(g_pahIntrs[0]); + if (rc == DDI_SUCCESS) + return rc; + + LogRel((DEVICE_NAME "::AddIRQ: failed to enable interrupt. rc=%d\n", rc)); + mutex_destroy(&g_IrqMtx); + } + else + LogRel((DEVICE_NAME "::AddIRQ: failed to add soft interrupt handler. rc=%d\n", rc)); + + ddi_intr_remove_handler(g_pahIntrs[0]); + } + else + LogRel((DEVICE_NAME "::AddIRQ: failed to add high-level interrupt handler. rc=%d\n", rc)); + + mutex_destroy(&g_HighLevelIrqMtx); + } + else + { + /* Interrupt handler runs at reschedulable level, initialize the mutex at the given priority. */ + mutex_init(&g_IrqMtx, NULL /* pszDesc */, MUTEX_DRIVER, DDI_INTR_PRI(uIntrPriority)); + + /* Assign interrupt handler function to the interrupt handle. */ + rc = ddi_intr_add_handler(g_pahIntrs[0], (ddi_intr_handler_t *)vgdrvSolarisISR, + NULL /* pvArg1 */, NULL /* pvArg2 */); + if (rc == DDI_SUCCESS) + { + /* Enable the interrupt. */ + rc = ddi_intr_enable(g_pahIntrs[0]); + if (rc == DDI_SUCCESS) + return rc; + + LogRel((DEVICE_NAME "::AddIRQ: failed to enable interrupt. rc=%d\n", rc)); + mutex_destroy(&g_IrqMtx); + } + } + } + else + LogRel((DEVICE_NAME "::AddIRQ: failed to get priority of interrupt. rc=%d\n", rc)); + + Assert(cIntrAllocated == 1); + ddi_intr_free(g_pahIntrs[0]); + } + else + LogRel((DEVICE_NAME "::AddIRQ: failed to allocated IRQs. count=%d\n", cIntrCount)); + RTMemFree(g_pahIntrs); + } + else + LogRel((DEVICE_NAME "::AddIRQ: failed to allocated IRQs. count=%d\n", cIntrCount)); + } + else + LogRel((DEVICE_NAME "::AddIRQ: failed to get or insufficient number of IRQs. rc=%d cIntrCount=%d\n", rc, cIntrCount)); + } + else + LogRel((DEVICE_NAME "::AddIRQ: fixed-type interrupts not supported. IntrType=%#x\n", fIntrType)); + } + else + LogRel((DEVICE_NAME "::AddIRQ: failed to get supported interrupt types. rc=%d\n", rc)); + return rc; +} + + +/** + * Removes IRQ for VMMDev. + * + * @param pDip Pointer to the device info structure. + */ +static void vgdrvSolarisRemoveIRQ(dev_info_t *pDip) +{ + LogFlow(("vgdrvSolarisRemoveIRQ:\n")); + + int rc = ddi_intr_disable(g_pahIntrs[0]); + if (rc == DDI_SUCCESS) + { + rc = ddi_intr_remove_handler(g_pahIntrs[0]); + if (rc == DDI_SUCCESS) + ddi_intr_free(g_pahIntrs[0]); + } + + if (g_fSoftIntRegistered) + { + ddi_intr_remove_softint(g_hSoftIntr); + mutex_destroy(&g_HighLevelIrqMtx); + g_fSoftIntRegistered = false; + } + + mutex_destroy(&g_IrqMtx); + RTMemFree(g_pahIntrs); +} + + +/** + * High-level Interrupt Service Routine for VMMDev. + * + * This routine simply dispatches a soft-interrupt at an acceptable IPL as + * VGDrvCommonISR() cannot be called at a high IPL (scheduler level or higher) + * due to pollwakeup() in VGDrvNativeISRMousePollEvent(). + * + * @param Arg Private data (unused, will be NULL). + * @returns DDI_INTR_CLAIMED if it's our interrupt, DDI_INTR_UNCLAIMED if it isn't. + */ +static uint_t vgdrvSolarisHighLevelISR(caddr_t Arg) +{ + bool const fOurIrq = VGDrvCommonIsOurIRQ(&g_DevExt); + if (fOurIrq) + { + ddi_intr_trigger_softint(g_hSoftIntr, NULL /* Arg */); + return DDI_INTR_CLAIMED; + } + return DDI_INTR_UNCLAIMED; +} + + +/** + * Interrupt Service Routine for VMMDev. + * + * @param Arg Private data (unused, will be NULL). + * @returns DDI_INTR_CLAIMED if it's our interrupt, DDI_INTR_UNCLAIMED if it isn't. + */ +static uint_t vgdrvSolarisISR(caddr_t Arg) +{ + LogFlow(("vgdrvSolarisISR:\n")); + + /* The mutex is required to protect against parallel executions (if possible?) and also the + mouse notify registeration race between VGDrvNativeSetMouseNotifyCallback() and VGDrvCommonISR(). */ + mutex_enter(&g_IrqMtx); + bool fOurIRQ = VGDrvCommonISR(&g_DevExt); + mutex_exit(&g_IrqMtx); + + return fOurIRQ ? DDI_INTR_CLAIMED : DDI_INTR_UNCLAIMED; +} + + +void VGDrvNativeISRMousePollEvent(PVBOXGUESTDEVEXT pDevExt) +{ + LogFlow(("VGDrvNativeISRMousePollEvent:\n")); + + /* + * Wake up poll waiters. + */ + pollwakeup(&g_PollHead, POLLIN | POLLRDNORM); +} + + +bool VGDrvNativeProcessOption(PVBOXGUESTDEVEXT pDevExt, const char *pszName, const char *pszValue) +{ + RT_NOREF(pDevExt); RT_NOREF(pszName); RT_NOREF(pszValue); + return false; +} + + +/** + * Sets the mouse notification callback. + * + * @returns VBox status code. + * @param pDevExt Pointer to the device extension. + * @param pNotify Pointer to the mouse notify struct. + */ +int VGDrvNativeSetMouseNotifyCallback(PVBOXGUESTDEVEXT pDevExt, PVBGLIOCSETMOUSENOTIFYCALLBACK pNotify) +{ + /* Take the mutex here so as to not race with VGDrvCommonISR() which invokes the mouse notify callback. */ + mutex_enter(&g_IrqMtx); + pDevExt->pfnMouseNotifyCallback = pNotify->u.In.pfnNotify; + pDevExt->pvMouseNotifyCallbackArg = pNotify->u.In.pvUser; + mutex_exit(&g_IrqMtx); + return VINF_SUCCESS; +} + |