diff options
Diffstat (limited to '')
| -rw-r--r-- | src/VBox/Additions/common/VBoxGuest/VBoxGuest-freebsd.c | 799 |
1 files changed, 799 insertions, 0 deletions
diff --git a/src/VBox/Additions/common/VBoxGuest/VBoxGuest-freebsd.c b/src/VBox/Additions/common/VBoxGuest/VBoxGuest-freebsd.c new file mode 100644 index 00000000..99228388 --- /dev/null +++ b/src/VBox/Additions/common/VBoxGuest/VBoxGuest-freebsd.c @@ -0,0 +1,799 @@ +/* $Id: VBoxGuest-freebsd.c $ */ +/** @file + * VirtualBox Guest Additions Driver for FreeBSD. + */ + +/* + * Copyright (C) 2007-2023 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 + */ + +/** @todo r=bird: This must merge with SUPDrv-freebsd.c before long. The two + * source files should only differ on prefixes and the extra bits wrt to the + * pci device. I.e. it should be diffable so that fixes to one can easily be + * applied to the other. */ + + +/********************************************************************************************************************************* +* Header Files * +*********************************************************************************************************************************/ +#include <sys/param.h> +#undef PVM +#include <sys/types.h> +#include <sys/module.h> +#include <sys/systm.h> +#include <sys/errno.h> +#include <sys/kernel.h> +#include <sys/fcntl.h> +#include <sys/conf.h> +#include <sys/uio.h> +#include <sys/bus.h> +#include <sys/poll.h> +#include <sys/selinfo.h> +#include <sys/queue.h> +#include <sys/lock.h> +#include <sys/lockmgr.h> +#include <sys/malloc.h> +#include <sys/file.h> +#include <sys/rman.h> +#include <machine/bus.h> +#include <machine/resource.h> +#include <dev/pci/pcivar.h> +#include <dev/pci/pcireg.h> + +#include "VBoxGuestInternal.h" +#include <VBox/version.h> +#include <VBox/log.h> +#include <iprt/assert.h> +#include <iprt/initterm.h> +#include <iprt/process.h> +#include <iprt/string.h> +#include <iprt/mem.h> +#include <iprt/asm.h> + + +/********************************************************************************************************************************* +* Defined Constants And Macros * +*********************************************************************************************************************************/ +/** The module name. */ +#define DEVICE_NAME "vboxguest" + + +/********************************************************************************************************************************* +* Structures and Typedefs * +*********************************************************************************************************************************/ +struct VBoxGuestDeviceState +{ + /** Resource ID of the I/O port */ + int iIOPortResId; + /** Pointer to the I/O port resource. */ + struct resource *pIOPortRes; + /** Start address of the IO Port. */ + uint16_t uIOPortBase; + /** Resource ID of the MMIO area */ + int iVMMDevMemResId; + /** Pointer to the MMIO resource. */ + struct resource *pVMMDevMemRes; + /** Handle of the MMIO resource. */ + bus_space_handle_t VMMDevMemHandle; + /** Size of the memory area. */ + bus_size_t VMMDevMemSize; + /** Mapping of the register space */ + void *pMMIOBase; + /** IRQ number */ + int iIrqResId; + /** IRQ resource handle. */ + struct resource *pIrqRes; + /** Pointer to the IRQ handler. */ + void *pfnIrqHandler; + /** VMMDev version */ + uint32_t u32Version; +}; + + +/********************************************************************************************************************************* +* Internal Functions * +*********************************************************************************************************************************/ +/* + * Character device file handlers. + */ +static d_fdopen_t vgdrvFreeBSDOpen; +static d_close_t vgdrvFreeBSDClose; +static d_ioctl_t vgdrvFreeBSDIOCtl; +static int vgdrvFreeBSDIOCtlSlow(PVBOXGUESTSESSION pSession, u_long ulCmd, caddr_t pvData, struct thread *pTd); +static d_write_t vgdrvFreeBSDWrite; +static d_read_t vgdrvFreeBSDRead; +static d_poll_t vgdrvFreeBSDPoll; + +/* + * IRQ related functions. + */ +static void vgdrvFreeBSDRemoveIRQ(device_t pDevice, void *pvState); +static int vgdrvFreeBSDAddIRQ(device_t pDevice, void *pvState); +static int vgdrvFreeBSDISR(void *pvState); + + +/********************************************************************************************************************************* +* Global Variables * +*********************************************************************************************************************************/ +static MALLOC_DEFINE(M_VBOXGUEST, "vboxguest", "VirtualBox Guest Device Driver"); + +#ifndef D_NEEDMINOR +# define D_NEEDMINOR 0 +#endif + +/* + * The /dev/vboxguest character device entry points. + */ +static struct cdevsw g_vgdrvFreeBSDChrDevSW = +{ + .d_version = D_VERSION, + .d_flags = D_TRACKCLOSE | D_NEEDMINOR, + .d_fdopen = vgdrvFreeBSDOpen, + .d_close = vgdrvFreeBSDClose, + .d_ioctl = vgdrvFreeBSDIOCtl, + .d_read = vgdrvFreeBSDRead, + .d_write = vgdrvFreeBSDWrite, + .d_poll = vgdrvFreeBSDPoll, + .d_name = "vboxguest" +}; + +/** Device extention & session data association structure. */ +static VBOXGUESTDEVEXT g_DevExt; + +/** List of cloned device. Managed by the kernel. */ +static struct clonedevs *g_pvgdrvFreeBSDClones; +/** The dev_clone event handler tag. */ +static eventhandler_tag g_vgdrvFreeBSDEHTag; +/** Reference counter */ +static volatile uint32_t cUsers; +/** selinfo structure used for polling. */ +static struct selinfo g_SelInfo; + +/** + * DEVFS event handler. + */ +static void vgdrvFreeBSDClone(void *pvArg, struct ucred *pCred, char *pszName, int cchName, struct cdev **ppDev) +{ + int iUnit; + int rc; + + Log(("vgdrvFreeBSDClone: pszName=%s ppDev=%p\n", pszName, ppDev)); + + /* + * One device node per user, si_drv1 points to the session. + * /dev/vboxguest<N> where N = {0...255}. + */ + if (!ppDev) + return; + if (strcmp(pszName, "vboxguest") == 0) + iUnit = -1; + else if (dev_stdclone(pszName, NULL, "vboxguest", &iUnit) != 1) + return; + if (iUnit >= 256) + { + Log(("vgdrvFreeBSDClone: iUnit=%d >= 256 - rejected\n", iUnit)); + return; + } + + Log(("vgdrvFreeBSDClone: pszName=%s iUnit=%d\n", pszName, iUnit)); + + rc = clone_create(&g_pvgdrvFreeBSDClones, &g_vgdrvFreeBSDChrDevSW, &iUnit, ppDev, 0); + Log(("vgdrvFreeBSDClone: clone_create -> %d; iUnit=%d\n", rc, iUnit)); + if (rc) + { + *ppDev = make_dev(&g_vgdrvFreeBSDChrDevSW, + iUnit, + UID_ROOT, + GID_WHEEL, + 0664, + "vboxguest%d", iUnit); + if (*ppDev) + { + dev_ref(*ppDev); + (*ppDev)->si_flags |= SI_CHEAPCLONE; + Log(("vgdrvFreeBSDClone: Created *ppDev=%p iUnit=%d si_drv1=%p si_drv2=%p\n", + *ppDev, iUnit, (*ppDev)->si_drv1, (*ppDev)->si_drv2)); + (*ppDev)->si_drv1 = (*ppDev)->si_drv2 = NULL; + } + else + Log(("vgdrvFreeBSDClone: make_dev iUnit=%d failed\n", iUnit)); + } + else + Log(("vgdrvFreeBSDClone: Existing *ppDev=%p iUnit=%d si_drv1=%p si_drv2=%p\n", + *ppDev, iUnit, (*ppDev)->si_drv1, (*ppDev)->si_drv2)); +} + +/** + * File open handler + * + */ +#if __FreeBSD_version >= 700000 +static int vgdrvFreeBSDOpen(struct cdev *pDev, int fOpen, struct thread *pTd, struct file *pFd) +#else +static int vgdrvFreeBSDOpen(struct cdev *pDev, int fOpen, struct thread *pTd) +#endif +{ + int rc; + PVBOXGUESTSESSION pSession; + uint32_t fRequestor; + struct ucred *pCred = curthread->td_ucred; + if (!pCred) + pCred = curproc->p_ucred; + + LogFlow(("vgdrvFreeBSDOpen:\n")); + + /* + * Try grab it (we don't grab the giant, remember). + */ + if (!ASMAtomicCmpXchgPtr(&pDev->si_drv1, (void *)0x42, NULL)) + return EBUSY; + + /* + * Create a new session. + */ + fRequestor = VMMDEV_REQUESTOR_USERMODE | VMMDEV_REQUESTOR_TRUST_NOT_GIVEN; + if (pCred && pCred->cr_uid == 0) + fRequestor |= VMMDEV_REQUESTOR_USR_ROOT; + else + fRequestor |= VMMDEV_REQUESTOR_USR_USER; + if (pCred && groupmember(0, pCred)) + fRequestor |= VMMDEV_REQUESTOR_GRP_WHEEL; + fRequestor |= VMMDEV_REQUESTOR_NO_USER_DEVICE; /** @todo implement /dev/vboxuser + if (!fUnrestricted) + fRequestor |= VMMDEV_REQUESTOR_USER_DEVICE; */ + fRequestor |= VMMDEV_REQUESTOR_CON_DONT_KNOW; /** @todo see if we can figure out console relationship of pProc. */ + rc = VGDrvCommonCreateUserSession(&g_DevExt, fRequestor, &pSession); + if (RT_SUCCESS(rc)) + { + if (ASMAtomicCmpXchgPtr(&pDev->si_drv1, pSession, (void *)0x42)) + { + Log(("vgdrvFreeBSDOpen: success - g_DevExt=%p pSession=%p rc=%d pid=%d\n", &g_DevExt, pSession, rc, (int)RTProcSelf())); + ASMAtomicIncU32(&cUsers); + return 0; + } + + VGDrvCommonCloseSession(&g_DevExt, pSession); + } + + LogRel(("vgdrvFreeBSDOpen: failed. rc=%d\n", rc)); + return RTErrConvertToErrno(rc); +} + +/** + * File close handler + * + */ +static int vgdrvFreeBSDClose(struct cdev *pDev, int fFile, int DevType, struct thread *pTd) +{ + PVBOXGUESTSESSION pSession = (PVBOXGUESTSESSION)pDev->si_drv1; + Log(("vgdrvFreeBSDClose: fFile=%#x pSession=%p\n", fFile, pSession)); + + /* + * Close the session if it's still hanging on to the device... + */ + if (RT_VALID_PTR(pSession)) + { + VGDrvCommonCloseSession(&g_DevExt, pSession); + if (!ASMAtomicCmpXchgPtr(&pDev->si_drv1, NULL, pSession)) + Log(("vgdrvFreeBSDClose: si_drv1=%p expected %p!\n", pDev->si_drv1, pSession)); + ASMAtomicDecU32(&cUsers); + /* Don't use destroy_dev here because it may sleep resulting in a hanging user process. */ + destroy_dev_sched(pDev); + } + else + Log(("vgdrvFreeBSDClose: si_drv1=%p!\n", pSession)); + return 0; +} + + +/** + * I/O control request. + * + * @returns depends... + * @param pDev The device. + * @param ulCmd The command. + * @param pvData Pointer to the data. + * @param fFile The file descriptor flags. + * @param pTd The calling thread. + */ +static int vgdrvFreeBSDIOCtl(struct cdev *pDev, u_long ulCmd, caddr_t pvData, int fFile, struct thread *pTd) +{ + PVBOXGUESTSESSION pSession; + devfs_get_cdevpriv((void **)&pSession); + + /* + * Deal with the fast ioctl path first. + */ + if (VBGL_IOCTL_IS_FAST(ulCmd)) + return VGDrvCommonIoCtlFast(ulCmd, &g_DevExt, pSession); + + return vgdrvFreeBSDIOCtlSlow(pSession, ulCmd, pvData, pTd); +} + + +/** + * Deal with the 'slow' I/O control requests. + * + * @returns 0 on success, appropriate errno on failure. + * @param pSession The session. + * @param ulCmd The command. + * @param pvData The request data. + * @param pTd The calling thread. + */ +static int vgdrvFreeBSDIOCtlSlow(PVBOXGUESTSESSION pSession, u_long ulCmd, caddr_t pvData, struct thread *pTd) +{ + PVBGLREQHDR pHdr; + uint32_t cbReq = IOCPARM_LEN(ulCmd); + void *pvUser = NULL; + + /* + * Buffered request? + */ + if ((IOC_DIRMASK & ulCmd) == IOC_INOUT) + { + pHdr = (PVBGLREQHDR)pvData; + if (RT_UNLIKELY(cbReq < sizeof(*pHdr))) + { + LogRel(("vgdrvFreeBSDIOCtlSlow: cbReq=%#x < %#x; ulCmd=%#lx\n", cbReq, (int)sizeof(*pHdr), ulCmd)); + return EINVAL; + } + if (RT_UNLIKELY(pHdr->uVersion != VBGLREQHDR_VERSION)) + { + LogRel(("vgdrvFreeBSDIOCtlSlow: bad uVersion=%#x; ulCmd=%#lx\n", pHdr->uVersion, ulCmd)); + return EINVAL; + } + if (RT_UNLIKELY( RT_MAX(pHdr->cbIn, pHdr->cbOut) != cbReq + || pHdr->cbIn < sizeof(*pHdr) + || (pHdr->cbOut < sizeof(*pHdr) && pHdr->cbOut != 0))) + { + LogRel(("vgdrvFreeBSDIOCtlSlow: max(%#x,%#x) != %#x; ulCmd=%#lx\n", pHdr->cbIn, pHdr->cbOut, cbReq, ulCmd)); + return EINVAL; + } + } + /* + * Big unbuffered request? + */ + else if ((IOC_DIRMASK & ulCmd) == IOC_VOID && !cbReq) + { + /* + * Read the header, validate it and figure out how much that needs to be buffered. + */ + VBGLREQHDR Hdr; + pvUser = *(void **)pvData; + int rc = copyin(pvUser, &Hdr, sizeof(Hdr)); + if (RT_UNLIKELY(rc)) + { + LogRel(("vgdrvFreeBSDIOCtlSlow: copyin(%p,Hdr,) -> %#x; ulCmd=%#lx\n", pvUser, rc, ulCmd)); + return rc; + } + if (RT_UNLIKELY(Hdr.uVersion != VBGLREQHDR_VERSION)) + { + LogRel(("vgdrvFreeBSDIOCtlSlow: bad uVersion=%#x; ulCmd=%#lx\n", Hdr.uVersion, ulCmd)); + return EINVAL; + } + cbReq = RT_MAX(Hdr.cbIn, Hdr.cbOut); + if (RT_UNLIKELY( Hdr.cbIn < sizeof(Hdr) + || (Hdr.cbOut < sizeof(Hdr) && Hdr.cbOut != 0) + || cbReq > _1M*16)) + { + LogRel(("vgdrvFreeBSDIOCtlSlow: max(%#x,%#x); ulCmd=%#lx\n", Hdr.cbIn, Hdr.cbOut, ulCmd)); + return EINVAL; + } + + /* + * Allocate buffer and copy in the data. + */ + pHdr = (PVBGLREQHDR)RTMemTmpAlloc(cbReq); + if (RT_UNLIKELY(!pHdr)) + { + LogRel(("vgdrvFreeBSDIOCtlSlow: failed to allocate buffer of %d bytes; ulCmd=%#lx\n", cbReq, ulCmd)); + return ENOMEM; + } + rc = copyin(pvUser, pHdr, Hdr.cbIn); + if (RT_UNLIKELY(rc)) + { + LogRel(("vgdrvFreeBSDIOCtlSlow: copyin(%p,%p,%#x) -> %#x; ulCmd=%#lx\n", + pvUser, pHdr, Hdr.cbIn, rc, ulCmd)); + RTMemTmpFree(pHdr); + return rc; + } + if (Hdr.cbIn < cbReq) + RT_BZERO((uint8_t *)pHdr + Hdr.cbIn, cbReq - Hdr.cbIn); + } + else + { + Log(("vgdrvFreeBSDIOCtlSlow: huh? cbReq=%#x ulCmd=%#lx\n", cbReq, ulCmd)); + return EINVAL; + } + + /* + * Process the IOCtl. + */ + int rc = VGDrvCommonIoCtl(ulCmd, &g_DevExt, pSession, pHdr, cbReq); + if (RT_LIKELY(!rc)) + { + /* + * If unbuffered, copy back the result before returning. + */ + if (pvUser) + { + uint32_t cbOut = pHdr->cbOut; + if (cbOut > cbReq) + { + LogRel(("vgdrvFreeBSDIOCtlSlow: too much output! %#x > %#x; uCmd=%#lx!\n", cbOut, cbReq, ulCmd)); + cbOut = cbReq; + } + rc = copyout(pHdr, pvUser, cbOut); + if (RT_UNLIKELY(rc)) + LogRel(("vgdrvFreeBSDIOCtlSlow: copyout(%p,%p,%#x) -> %d; uCmd=%#lx!\n", pHdr, pvUser, cbOut, rc, ulCmd)); + + Log(("vgdrvFreeBSDIOCtlSlow: returns %d / %d ulCmd=%lx\n", 0, pHdr->rc, ulCmd)); + + /* cleanup */ + RTMemTmpFree(pHdr); + } + } + else + { + /* + * The request failed, just clean up. + */ + if (pvUser) + RTMemTmpFree(pHdr); + + Log(("vgdrvFreeBSDIOCtlSlow: ulCmd=%lx pData=%p failed, rc=%d\n", ulCmd, pvData, rc)); + rc = EINVAL; + } + + return rc; +} + + +/** + * @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; +} + + +static int vgdrvFreeBSDPoll(struct cdev *pDev, int fEvents, struct thread *td) +{ + int fEventsProcessed; + + LogFlow(("vgdrvFreeBSDPoll: fEvents=%d\n", fEvents)); + + PVBOXGUESTSESSION pSession = (PVBOXGUESTSESSION)pDev->si_drv1; + if (RT_UNLIKELY(!RT_VALID_PTR(pSession))) { + Log(("vgdrvFreeBSDPoll: no state data for %s\n", devtoname(pDev))); + return (fEvents & (POLLHUP|POLLIN|POLLRDNORM|POLLOUT|POLLWRNORM)); + } + + uint32_t u32CurSeq = ASMAtomicUoReadU32(&g_DevExt.u32MousePosChangedSeq); + if (pSession->u32MousePosChangedSeq != u32CurSeq) + { + fEventsProcessed = fEvents & (POLLIN | POLLRDNORM); + pSession->u32MousePosChangedSeq = u32CurSeq; + } + else + { + fEventsProcessed = 0; + + selrecord(td, &g_SelInfo); + } + + return fEventsProcessed; +} + +static int vgdrvFreeBSDWrite(struct cdev *pDev, struct uio *pUio, int fIo) +{ + return 0; +} + +static int vgdrvFreeBSDRead(struct cdev *pDev, struct uio *pUio, int fIo) +{ + return 0; +} + +static int vgdrvFreeBSDDetach(device_t pDevice) +{ + struct VBoxGuestDeviceState *pState = device_get_softc(pDevice); + + if (cUsers > 0) + return EBUSY; + + /* + * Reverse what we did in vgdrvFreeBSDAttach. + */ + if (g_vgdrvFreeBSDEHTag != NULL) + EVENTHANDLER_DEREGISTER(dev_clone, g_vgdrvFreeBSDEHTag); + + clone_cleanup(&g_pvgdrvFreeBSDClones); + + vgdrvFreeBSDRemoveIRQ(pDevice, pState); + + if (pState->pVMMDevMemRes) + bus_release_resource(pDevice, SYS_RES_MEMORY, pState->iVMMDevMemResId, pState->pVMMDevMemRes); + if (pState->pIOPortRes) + bus_release_resource(pDevice, SYS_RES_IOPORT, pState->iIOPortResId, pState->pIOPortRes); + + VGDrvCommonDeleteDevExt(&g_DevExt); + + RTR0Term(); + + return 0; +} + + +/** + * Interrupt service routine. + * + * @returns Whether the interrupt was from VMMDev. + * @param pvState Opaque pointer to the device state. + */ +static int vgdrvFreeBSDISR(void *pvState) +{ + LogFlow(("vgdrvFreeBSDISR: pvState=%p\n", pvState)); + + bool fOurIRQ = VGDrvCommonISR(&g_DevExt); + + return fOurIRQ ? 0 : 1; +} + +void VGDrvNativeISRMousePollEvent(PVBOXGUESTDEVEXT pDevExt) +{ + LogFlow(("VGDrvNativeISRMousePollEvent:\n")); + + /* + * Wake up poll waiters. + */ + selwakeup(&g_SelInfo); +} + + +bool VGDrvNativeProcessOption(PVBOXGUESTDEVEXT pDevExt, const char *pszName, const char *pszValue) +{ + RT_NOREF(pDevExt); RT_NOREF(pszName); RT_NOREF(pszValue); + return false; +} + + +/** + * Sets IRQ for VMMDev. + * + * @returns FreeBSD error code. + * @param pDevice Pointer to the device info structure. + * @param pvState Pointer to the state info structure. + */ +static int vgdrvFreeBSDAddIRQ(device_t pDevice, void *pvState) +{ + int iResId = 0; + int rc = 0; + struct VBoxGuestDeviceState *pState = (struct VBoxGuestDeviceState *)pvState; + + pState->pIrqRes = bus_alloc_resource_any(pDevice, SYS_RES_IRQ, &iResId, RF_SHAREABLE | RF_ACTIVE); + +#if __FreeBSD_version >= 700000 + rc = bus_setup_intr(pDevice, pState->pIrqRes, INTR_TYPE_BIO | INTR_MPSAFE, NULL, (driver_intr_t *)vgdrvFreeBSDISR, pState, + &pState->pfnIrqHandler); +#else + rc = bus_setup_intr(pDevice, pState->pIrqRes, INTR_TYPE_BIO, (driver_intr_t *)vgdrvFreeBSDISR, pState, &pState->pfnIrqHandler); +#endif + + if (rc) + { + pState->pfnIrqHandler = NULL; + return VERR_DEV_IO_ERROR; + } + + pState->iIrqResId = iResId; + + return VINF_SUCCESS; +} + +/** + * Removes IRQ for VMMDev. + * + * @param pDevice Pointer to the device info structure. + * @param pvState Opaque pointer to the state info structure. + */ +static void vgdrvFreeBSDRemoveIRQ(device_t pDevice, void *pvState) +{ + struct VBoxGuestDeviceState *pState = (struct VBoxGuestDeviceState *)pvState; + + if (pState->pIrqRes) + { + bus_teardown_intr(pDevice, pState->pIrqRes, pState->pfnIrqHandler); + bus_release_resource(pDevice, SYS_RES_IRQ, 0, pState->pIrqRes); + } +} + +static int vgdrvFreeBSDAttach(device_t pDevice) +{ + int rc; + int iResId; + struct VBoxGuestDeviceState *pState; + + cUsers = 0; + + /* + * Initialize IPRT R0 driver, which internally calls OS-specific r0 init. + */ + rc = RTR0Init(0); + if (RT_FAILURE(rc)) + { + LogFunc(("RTR0Init failed.\n")); + return ENXIO; + } + + pState = device_get_softc(pDevice); + + /* + * Allocate I/O port resource. + */ + iResId = PCIR_BAR(0); + pState->pIOPortRes = bus_alloc_resource_any(pDevice, SYS_RES_IOPORT, &iResId, RF_ACTIVE); + pState->uIOPortBase = rman_get_start(pState->pIOPortRes); + pState->iIOPortResId = iResId; + if (pState->uIOPortBase) + { + /* + * Map the MMIO region. + */ + iResId = PCIR_BAR(1); + pState->pVMMDevMemRes = bus_alloc_resource_any(pDevice, SYS_RES_MEMORY, &iResId, RF_ACTIVE); + pState->VMMDevMemHandle = rman_get_bushandle(pState->pVMMDevMemRes); + pState->VMMDevMemSize = rman_get_size(pState->pVMMDevMemRes); + + pState->pMMIOBase = rman_get_virtual(pState->pVMMDevMemRes); + pState->iVMMDevMemResId = iResId; + if (pState->pMMIOBase) + { + /* + * Call the common device extension initializer. + */ + rc = VGDrvCommonInitDevExt(&g_DevExt, pState->uIOPortBase, + pState->pMMIOBase, pState->VMMDevMemSize, +#if ARCH_BITS == 64 + VBOXOSTYPE_FreeBSD_x64, +#else + VBOXOSTYPE_FreeBSD, +#endif + VMMDEV_EVENT_MOUSE_POSITION_CHANGED); + if (RT_SUCCESS(rc)) + { + /* + * Add IRQ of VMMDev. + */ + rc = vgdrvFreeBSDAddIRQ(pDevice, pState); + if (RT_SUCCESS(rc)) + { + /* + * Read host configuration. + */ + VGDrvCommonProcessOptionsFromHost(&g_DevExt); + + /* + * Configure device cloning. + */ + clone_setup(&g_pvgdrvFreeBSDClones); + g_vgdrvFreeBSDEHTag = EVENTHANDLER_REGISTER(dev_clone, vgdrvFreeBSDClone, 0, 1000); + if (g_vgdrvFreeBSDEHTag) + { + printf(DEVICE_NAME ": loaded successfully\n"); + return 0; + } + + printf(DEVICE_NAME ": EVENTHANDLER_REGISTER(dev_clone,,,) failed\n"); + clone_cleanup(&g_pvgdrvFreeBSDClones); + vgdrvFreeBSDRemoveIRQ(pDevice, pState); + } + else + printf((DEVICE_NAME ": VGDrvCommonInitDevExt failed.\n")); + VGDrvCommonDeleteDevExt(&g_DevExt); + } + else + printf((DEVICE_NAME ": vgdrvFreeBSDAddIRQ failed.\n")); + } + else + printf((DEVICE_NAME ": MMIO region setup failed.\n")); + } + else + printf((DEVICE_NAME ": IOport setup failed.\n")); + + RTR0Term(); + return ENXIO; +} + +static int vgdrvFreeBSDProbe(device_t pDevice) +{ + if ((pci_get_vendor(pDevice) == VMMDEV_VENDORID) && (pci_get_device(pDevice) == VMMDEV_DEVICEID)) + return 0; + + return ENXIO; +} + +static device_method_t vgdrvFreeBSDMethods[] = +{ + /* Device interface. */ + DEVMETHOD(device_probe, vgdrvFreeBSDProbe), + DEVMETHOD(device_attach, vgdrvFreeBSDAttach), + DEVMETHOD(device_detach, vgdrvFreeBSDDetach), + {0,0} +}; + +static driver_t vgdrvFreeBSDDriver = +{ + DEVICE_NAME, + vgdrvFreeBSDMethods, + sizeof(struct VBoxGuestDeviceState), +}; + +static devclass_t vgdrvFreeBSDClass; + +DRIVER_MODULE(vboxguest, pci, vgdrvFreeBSDDriver, vgdrvFreeBSDClass, 0, 0); +MODULE_VERSION(vboxguest, 1); + |