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Diffstat (limited to 'include/VBox/VBoxGuest.h')
| -rw-r--r-- | include/VBox/VBoxGuest.h | 1012 |
1 files changed, 1012 insertions, 0 deletions
diff --git a/include/VBox/VBoxGuest.h b/include/VBox/VBoxGuest.h new file mode 100644 index 00000000..ddd78327 --- /dev/null +++ b/include/VBox/VBoxGuest.h @@ -0,0 +1,1012 @@ +/** @file + * VBoxGuest - VirtualBox Guest Additions Driver Interface. (ADD,DEV) + * + * @note This file is used by 16-bit compilers too (OpenWatcom). + */ + +/* + * Copyright (C) 2006-2022 Oracle and/or its affiliates. + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, + * copy, modify, merge, publish, distribute, sublicense, and/or sell + * copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following + * conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES + * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT + * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, + * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING + * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR + * OTHER DEALINGS IN THE SOFTWARE. + */ + +#ifndef VBOX_INCLUDED_VBoxGuest_h +#define VBOX_INCLUDED_VBoxGuest_h +#ifndef RT_WITHOUT_PRAGMA_ONCE +# pragma once +#endif + +#include <VBox/types.h> +#include <iprt/assertcompile.h> +#include <VBox/VMMDevCoreTypes.h> +#include <VBox/VBoxGuestCoreTypes.h> + + + +/** @defgroup grp_vboxguest VirtualBox Guest Additions Device Driver + * + * Also know as VBoxGuest. + * + * @{ + */ + +/** @defgroup grp_vboxguest_ioc VirtualBox Guest Additions Driver Interface + * + * @note This is considered internal in ring-3, please use the VbglR3 functions. + * + * - I/O controls for user and/or kernel mode starts at 0. + * - IDC specific requests descends from 63. + * - Bits 7 and 6 are currently reserved for future hacks. + * + * @remarks When creating new IOCtl interfaces keep in mind that not all OSes supports + * reporting back the output size. (This got messed up a little bit in VBoxDrv.) + * + * The request size is also a little bit tricky as it's passed as part of the + * request code on unix. The size field is 14 bits on Linux, 12 bits on *BSD, + * 13 bits Darwin, and 8-bits on Solaris. All the BSDs and Darwin kernels + * will make use of the size field, while Linux and Solaris will not. We're of + * course using the size to validate and/or map/lock the request, so it has + * to be valid. + * + * For Solaris we will have to do something special though, 255 isn't + * sufficient for all we need. A 4KB restriction (BSD) is probably not + * too problematic (yet) as a general one. + * + * More info can be found in SUPDRVIOC.h and related sources. + * + * @remarks If adding interfaces that only has input or only has output, some new macros + * needs to be created so the most efficient IOCtl data buffering method can be + * used. + * + * @{ + */ +#if !defined(IN_RC) && !defined(IN_RING0_AGNOSTIC) + +/** Fictive start address of the hypervisor physical memory for MmMapIoSpace. */ +#define VBOXGUEST_HYPERVISOR_PHYSICAL_START UINT32_C(0xf8000000) + +#ifdef RT_OS_DARWIN +/** Cookie used to fend off some unwanted clients to the IOService. */ +# define VBOXGUEST_DARWIN_IOSERVICE_COOKIE UINT32_C(0x56426f78) /* 'VBox' */ +#endif + + +#if defined(RT_OS_WINDOWS) +# ifndef CTL_CODE +# include <iprt/win/windows.h> +# endif + /* Automatic buffering, size not encoded. */ +# define VBGL_IOCTL_CODE_SIZE(Function, Size) CTL_CODE(FILE_DEVICE_UNKNOWN, 2048 + (Function), METHOD_BUFFERED, FILE_WRITE_ACCESS) +# define VBGL_IOCTL_CODE_BIG(Function) CTL_CODE(FILE_DEVICE_UNKNOWN, 2048 + (Function), METHOD_BUFFERED, FILE_WRITE_ACCESS) +# define VBGL_IOCTL_CODE_FAST(Function) CTL_CODE(FILE_DEVICE_UNKNOWN, 2048 + (Function), METHOD_NEITHER, FILE_WRITE_ACCESS) +# define VBGL_IOCTL_CODE_STRIPPED(a_uIOCtl) (a_uIOCtl) +# define VBOXGUEST_DEVICE_NAME "\\\\.\\VBoxGuest" +/** The support service name. */ +# define VBOXGUEST_SERVICE_NAME "VBoxGuest" +/** Global name for Win2k+ */ +# define VBOXGUEST_DEVICE_NAME_GLOBAL "\\\\.\\Global\\VBoxGuest" +/** Win32 driver name */ +# define VBOXGUEST_DEVICE_NAME_NT L"\\Device\\VBoxGuest" +/** Device name. */ +# define VBOXGUEST_DEVICE_NAME_DOS L"\\DosDevices\\VBoxGuest" + +#elif defined(RT_OS_OS2) + /* No automatic buffering, size not encoded. */ +# define VBGL_IOCTL_CATEGORY 0xc2 +# define VBGL_IOCTL_CODE_SIZE(Function, Size) ((unsigned char)(Function)) +# define VBGL_IOCTL_CODE_BIG(Function) ((unsigned char)(Function)) +# define VBGL_IOCTL_CATEGORY_FAST 0xc3 /**< Also defined in VBoxGuestA-os2.asm. */ +# define VBGL_IOCTL_CODE_FAST(Function) ((unsigned char)(Function)) +# define VBGL_IOCTL_CODE_STRIPPED(a_uIOCtl) (a_uIOCtl) +# define VBOXGUEST_DEVICE_NAME "\\Dev\\VBoxGst$" +/** Short device name for AttachDD. + * @note Case sensitive. Must match what VBoxGuestA-os2.asm says! */ +# define VBOXGUEST_DEVICE_NAME_SHORT "vboxgst$" + +#elif defined(RT_OS_SOLARIS) + /* No automatic buffering, size limited to 255 bytes => use VBGLBIGREQ for everything. */ +# include <sys/ioccom.h> +# define VBGL_IOCTL_CODE_SIZE(Function, Size) ((uintptr_t)(_IOWRN('V', (Function), sizeof(VBGLREQHDR)))) +# define VBGL_IOCTL_CODE_BIG(Function) _IOWRN('V', (Function), sizeof(VBGLREQHDR)) +# define VBGL_IOCTL_CODE_FAST(Function) _IO( 'F', (Function)) +# define VBGL_IOCTL_CODE_STRIPPED(a_uIOCtl) (a_uIOCtl) +# define VBGL_IOCTL_IS_FAST(a_uIOCtl) ( ((a_uIOCtl) & 0x0000ff00) == ('F' << 8) ) + +#elif defined(RT_OS_LINUX) + /* No automatic buffering, size limited to 16KB. */ +# include <linux/ioctl.h> +# define VBGL_IOCTL_CODE_SIZE(Function, Size) _IOC(_IOC_READ | _IOC_WRITE, 'V', (Function), (Size)) +# define VBGL_IOCTL_CODE_BIG(Function) _IO('V', (Function)) +# define VBGL_IOCTL_CODE_FAST(Function) _IO('F', (Function)) +# define VBGL_IOCTL_CODE_STRIPPED(a_uIOCtl) _IOC_NR((a_uIOCtl)) +# define VBOXGUEST_USER_DEVICE_NAME "/dev/vboxuser" + +#elif defined(RT_OS_HAIKU) + /* No automatic buffering, size not encoded. */ + /** @todo do something better */ +# define VBGL_IOCTL_CODE_SIZE(Function, Size) (0x56420000 | (Function)) +# define VBGL_IOCTL_CODE_BIG(Function) (0x56420000 | (Function)) +# define VBGL_IOCTL_CODE_FAST(Function) (0x56420000 | (Function)) +# define VBGL_IOCTL_CODE_STRIPPED(a_uIOCtl) (a_uIOCtl) +# define VBOXGUEST_DEVICE_NAME "/dev/misc/vboxguest" + +#else /* BSD Like */ + /* Automatic buffering, size limited to 4KB on *BSD and 8KB on Darwin - commands the limit, 4KB. */ +# include <sys/ioccom.h> +# define VBGL_IOCTL_CODE_SIZE(Function, Size) _IOC(IOC_INOUT, 'V', (Function), (Size)) +# define VBGL_IOCTL_CODE_BIG(Function) _IO('V', (Function)) +# define VBGL_IOCTL_CODE_FAST(Function) _IO('F', (Function)) +# define VBGL_IOCTL_CODE_STRIPPED(a_uIOCtl) ((a_uIOCtl) & ~(_IOC(0,0,0,IOCPARM_MASK))) +# define VBGL_IOCTL_IS_FAST(a_uIOCtl) ( IOCGROUP(a_uIOCtl) == 'F' ) +# if defined(RT_OS_DARWIN) +# define VBOXGUEST_DEVICE_NAME "/dev/vboxguest" +# define VBOXGUEST_USER_DEVICE_NAME "/dev/vboxguestu" +# endif + +#endif + +/** @todo It would be nice if we could have two defines without paths. */ + +/** @def VBOXGUEST_DEVICE_NAME + * The support device name. */ +#ifndef VBOXGUEST_DEVICE_NAME /* PORTME */ +# define VBOXGUEST_DEVICE_NAME "/dev/vboxguest" +#endif + +/** @def VBOXGUEST_USER_DEVICE_NAME + * The support device name of the user accessible device node. */ +#ifndef VBOXGUEST_USER_DEVICE_NAME +# define VBOXGUEST_USER_DEVICE_NAME VBOXGUEST_DEVICE_NAME +#endif + + +/** + * The VBoxGuest I/O control version. + * + * As usual, the high word contains the major version and changes to it + * signifies incompatible changes. + * + * The lower word is the minor version number, it is increased when new + * functions are added or existing changed in a backwards compatible manner. + */ +#define VBGL_IOC_VERSION UINT32_C(0x00010000) + + + +/** @name VBGL_IOCTL_DRIVER_INFO + * Adjust and get driver information. + * + * @note May switch the session to a backwards compatible interface version if + * uClientVersion indicates older client code. + * + * @{ + */ +#define VBGL_IOCTL_DRIVER_VERSION_INFO VBGL_IOCTL_CODE_SIZE(0, VBGL_IOCTL_DRIVER_VERSION_INFO_SIZE) +#define VBGL_IOCTL_DRIVER_VERSION_INFO_SIZE sizeof(VBGLIOCDRIVERVERSIONINFO) +#define VBGL_IOCTL_DRIVER_VERSION_INFO_SIZE_IN RT_UOFFSET_AFTER(VBGLIOCDRIVERVERSIONINFO, u.In) +#define VBGL_IOCTL_DRIVER_VERSION_INFO_SIZE_OUT sizeof(VBGLIOCDRIVERVERSIONINFO) +typedef struct VBGLIOCDRIVERVERSIONINFO +{ + /** The header. */ + VBGLREQHDR Hdr; + union + { + struct + { + /** The requested interface version number (VBGL_IOC_VERSION). */ + uint32_t uReqVersion; + /** The minimum interface version number + * (typically the major version part of VBGL_IOC_VERSION). */ + uint32_t uMinVersion; + /** Reserved, MBZ. */ + uint32_t uReserved1; + /** Reserved, MBZ. */ + uint32_t uReserved2; + } In; + struct + { + /** Interface version for this session (typically VBGL_IOC_VERSION). */ + uint32_t uSessionVersion; + /** The version of the IDC interface (VBGL_IOC_VERSION). */ + uint32_t uDriverVersion; + /** The SVN revision of the driver. + * This will be set to 0 if not compiled into the driver. */ + uint32_t uDriverRevision; + /** Reserved \#1 (will be returned as zero until defined). */ + uint32_t uReserved1; + /** Reserved \#2 (will be returned as zero until defined). */ + uint32_t uReserved2; + } Out; + } u; +} VBGLIOCDRIVERVERSIONINFO, RT_FAR *PVBGLIOCDRIVERVERSIONINFO; +AssertCompileSize(VBGLIOCDRIVERVERSIONINFO, 24 + 20); +#if !defined(__GNUC__) /* Some GCC versions can't handle the complicated RT_UOFFSET_AFTER macro, it seems. */ \ + && (!defined(RT_OS_OS2) || (!defined(__IBMC__) && !defined(__IBMCPP__) && (!defined(__WATCOMC__) || !defined(__cplusplus)))) +AssertCompile(VBGL_IOCTL_DRIVER_VERSION_INFO_SIZE_IN == 24 + 16); +#endif +/** @} */ + + +/** @name VBGL_IOCTL_GET_PORT_INFO + * Query VMMDev I/O port region and MMIO mapping address. + * @remarks Ring-0 only. + * @{ + */ +#define VBGL_IOCTL_GET_VMMDEV_IO_INFO VBGL_IOCTL_CODE_SIZE(1, VBGL_IOCTL_GET_VMMDEV_IO_INFO_SIZE) +#define VBGL_IOCTL_GET_VMMDEV_IO_INFO_SIZE sizeof(VBGLIOCGETVMMDEVIOINFO) +#define VBGL_IOCTL_GET_VMMDEV_IO_INFO_SIZE_IN sizeof(VBGLREQHDR) +#define VBGL_IOCTL_GET_VMMDEV_IO_INFO_SIZE_OUT sizeof(VBGLIOCGETVMMDEVIOINFO) +typedef struct VBGLIOCGETVMMDEVIOINFO +{ + /** The header. */ + VBGLREQHDR Hdr; + union + { + struct + { + /** The MMIO mapping. NULL if no MMIO region. */ + struct VMMDevMemory volatile RT_FAR *pvVmmDevMapping; + /** The I/O port address. */ + RTIOPORT IoPort; + /** Padding, ignore. */ + RTIOPORT auPadding[HC_ARCH_BITS == 64 ? 3 : 1]; + } Out; + } u; +} VBGLIOCGETVMMDEVIOINFO, RT_FAR *PVBGLIOCGETVMMDEVIOINFO; +AssertCompileSize(VBGLIOCGETVMMDEVIOINFO, 24 + (HC_ARCH_BITS == 64 ? 16 : 8)); +/** @} */ + + +/** @name VBGL_IOCTL_VMMDEV_REQUEST + * IOCTL to VBoxGuest to perform a VMM Device request less than 1KB in size. + * @{ + */ +#define VBGL_IOCTL_VMMDEV_REQUEST(a_cb) VBGL_IOCTL_CODE_SIZE(2, (a_cb)) +/** @} */ + + +/** @name VBGL_IOCTL_VMMDEV_REQUEST_BIG + * IOCTL to VBoxGuest to perform a VMM Device request that can 1KB or larger. + * @{ + */ +#define VBGL_IOCTL_VMMDEV_REQUEST_BIG VBGL_IOCTL_CODE_BIG(3) +/** @} */ + +#ifdef VBOX_WITH_HGCM + +/** @name VBGL_IOCTL_HGCM_CONNECT + * Connect to a HGCM service. + * @{ */ +# define VBGL_IOCTL_HGCM_CONNECT VBGL_IOCTL_CODE_SIZE(4, VBGL_IOCTL_HGCM_CONNECT_SIZE) +# define VBGL_IOCTL_HGCM_CONNECT_SIZE sizeof(VBGLIOCHGCMCONNECT) +# define VBGL_IOCTL_HGCM_CONNECT_SIZE_IN sizeof(VBGLIOCHGCMCONNECT) +# define VBGL_IOCTL_HGCM_CONNECT_SIZE_OUT RT_UOFFSET_AFTER(VBGLIOCHGCMCONNECT, u.Out) +typedef struct VBGLIOCHGCMCONNECT +{ + /** The header. */ + VBGLREQHDR Hdr; + union + { + struct + { + HGCMServiceLocation Loc; + } In; + struct + { + uint32_t idClient; + } Out; + } u; +} VBGLIOCHGCMCONNECT, RT_FAR *PVBGLIOCHGCMCONNECT; +AssertCompileSize(VBGLIOCHGCMCONNECT, 24 + 132); +#if !defined(__GNUC__) /* Some GCC versions can't handle the complicated RT_UOFFSET_AFTER macro, it seems. */ \ + && (!defined(RT_OS_OS2) || (!defined(__IBMC__) && !defined(__IBMCPP__) && (!defined(__WATCOMC__) || !defined(__cplusplus)))) +AssertCompile(VBGL_IOCTL_HGCM_CONNECT_SIZE_OUT == 24 + 4); +#endif +/** @} */ + + +/** @name VBGL_IOCTL_HGCM_DISCONNECT + * Disconnect from a HGCM service. + * @{ */ +# define VBGL_IOCTL_HGCM_DISCONNECT VBGL_IOCTL_CODE_SIZE(5, VBGL_IOCTL_HGCM_DISCONNECT_SIZE) +# define VBGL_IOCTL_HGCM_DISCONNECT_SIZE sizeof(VBGLIOCHGCMDISCONNECT) +# define VBGL_IOCTL_HGCM_DISCONNECT_SIZE_IN sizeof(VBGLIOCHGCMDISCONNECT) +# define VBGL_IOCTL_HGCM_DISCONNECT_SIZE_OUT sizeof(VBGLREQHDR) +/** @note This is also used by a VbglR0 API. */ +typedef struct VBGLIOCHGCMDISCONNECT +{ + /** The header. */ + VBGLREQHDR Hdr; + union + { + struct + { + uint32_t idClient; + } In; + } u; +} VBGLIOCHGCMDISCONNECT, RT_FAR *PVBGLIOCHGCMDISCONNECT; +AssertCompileSize(VBGLIOCHGCMDISCONNECT, 24 + 4); +/** @} */ + + +/** @name VBGL_IOCTL_HGCM_CALL, VBGL_IOCTL_HGCM_CALL_WITH_USER_DATA + * + * Make a call to a HGCM service. There are several variations here. + * + * The VBGL_IOCTL_HGCM_CALL_WITH_USER_DATA variation is for other drivers (like + * the graphics ones) passing on requests from user land that contains user + * data. These calls are always interruptible. + * + * @{ */ +# define VBGL_IOCTL_HGCM_CALL_32(a_cb) VBGL_IOCTL_CODE_SIZE(6, (a_cb)) +# define VBGL_IOCTL_HGCM_CALL_64(a_cb) VBGL_IOCTL_CODE_SIZE(7, (a_cb)) +# if ARCH_BITS == 64 +# define VBGL_IOCTL_HGCM_CALL(a_cb) VBGL_IOCTL_HGCM_CALL_64(a_cb) +# else +# define VBGL_IOCTL_HGCM_CALL(a_cb) VBGL_IOCTL_HGCM_CALL_32(a_cb) +# endif +# define VBGL_IOCTL_HGCM_CALL_WITH_USER_DATA(a_cb) VBGL_IOCTL_CODE_SIZE(8, (a_cb)) +/** @} */ + + +/** @name VBGL_IOCTL_IDC_HGCM_FAST_CALL + * + * Variant of VBGL_IOCTL_HGCM_CALL for drivers that submits the request as-is to + * the host and handles the waiting, the caller does all the rest. + * + * @note ring-0 only. + * @note Size is not encoded in the I/O control code. + * @{ + */ +#define VBGL_IOCTL_IDC_HGCM_FAST_CALL VBGL_IOCTL_CODE_SIZE(61, sizeof(VBGLIOCIDCHGCMFASTCALL)) +#define VBGL_IOCTL_IDC_HGCM_FAST_CALL_SIZE(a_cb) (a_cb) +#define VBGL_IOCTL_IDC_HGCM_FAST_CALL_SIZE_IN(a_cb) (a_cb) +#define VBGL_IOCTL_IDC_HGCM_FAST_CALL_SIZE_OUT(a_cb) (a_cb) +#pragma pack(4) /* Want it to fit nicely with the 44 byte VMMDevHGCMCall and optimally align 64-bit parameters structures. */ +typedef struct VBGLIOCIDCHGCMFASTCALL +{ + /** The header. */ + VBGLREQHDR Hdr; + /** The physical address of the following VMMDevHGCMCall structure. */ + RTGCPHYS32 GCPhysReq; + /** Set if interruptible. */ + bool fInterruptible; + /** Reserved. */ + uint8_t abReserved0[3]; + uint64_t uTimestamp[2]; + uint8_t abReserved1[4]; + /* After this structure follows a VMMDevHGCMCall strcuture (44 bytes), then + zero or more HGCMFunctionParameter structures (12 or 16 bytes), and finally + page lists and embedded buffers. */ +} VBGLIOCIDCHGCMFASTCALL, RT_FAR *PVBGLIOCIDCHGCMFASTCALL; +#pragma pack() +AssertCompileSize(VBGLIOCIDCHGCMFASTCALL, /* 24 + 4 + 1 + 3 + 2*8 + 4 = 0x34 (52) = */ 0x34); + +/** + * Macro for initializing VBGLIOCIDCHGCMFASTCALL and the following + * VMMDevHGCMCall structures. + * + * @param a_pHdr The request header to initialize. + * @param a_HdrPhys The 32-bit physical address corresponding to @a a_pHdr. + * @param a_pCall Pointer to the VMMDevHGCMCall structure. + * @param a_idClient The HGCM client ID. + * @param a_uFunction The HGCM function number. + * @param a_cParms The number of parameters following @a a_pCall. + * @param a_cbReq The size of the whole request. + */ +#define VBGLIOCIDCHGCMFASTCALL_INIT(a_pHdr, a_HdrPhys, a_pCall, a_idClient, a_uFunction, a_cParms, a_cbReq) \ + do { \ + Assert((uintptr_t)(a_pHdr) + sizeof(VBGLIOCIDCHGCMFASTCALL) == (uintptr_t)(a_pCall)); \ + VBGLREQHDR_INIT_EX(&(a_pHdr)->Hdr, a_cbReq, a_cbReq); \ + pReq->Hdr.GCPhysReq = (a_HdrPhys) + sizeof(VBGLIOCIDCHGCMFASTCALL); \ + pReq->Hdr.fInterruptible = false; \ + \ + (a_pCall)->header.header.size = (a_cbReq) - sizeof(VBGLIOCIDCHGCMFASTCALL); \ + (a_pCall)->header.header.version = VBGLREQHDR_VERSION; \ + (a_pCall)->header.header.requestType= (ARCH_BITS == 64 ? VMMDevReq_HGCMCall64 : VMMDevReq_HGCMCall32); \ + (a_pCall)->header.header.rc = VERR_INTERNAL_ERROR; \ + (a_pCall)->header.header.reserved1 = 0; \ + (a_pCall)->header.header.fRequestor = VMMDEV_REQUESTOR_KERNEL | VMMDEV_REQUESTOR_USR_DRV_OTHER \ + | VMMDEV_REQUESTOR_CON_DONT_KNOW | VMMDEV_REQUESTOR_TRUST_NOT_GIVEN; \ + (a_pCall)->header.fu32Flags = 0; \ + (a_pCall)->header.result = VERR_INTERNAL_ERROR; \ + (a_pCall)->u32ClientID = (a_idClient); \ + (a_pCall)->u32Function = (a_uFunction); \ + (a_pCall)->cParms = (a_cParms); \ + } while (0) + + +/** @} */ + +#endif /* VBOX_WITH_HGCM */ + + +/** @name VBGL_IOCTL_LOG + * IOCTL to VBoxGuest to perform backdoor logging. + * @{ */ +#define VBOXGUEST_IOCTL_LOG(Size) +#define VBGL_IOCTL_LOG(a_cchMsg) VBGL_IOCTL_CODE_BIG(9) +#define VBGL_IOCTL_LOG_SIZE(a_cchMsg) (sizeof(VBGLREQHDR) + (a_cchMsg) + 1) +#define VBGL_IOCTL_LOG_SIZE_IN(a_cchMsg) (sizeof(VBGLREQHDR) + (a_cchMsg) + 1) +#define VBGL_IOCTL_LOG_SIZE_OUT sizeof(VBGLREQHDR) +typedef struct VBGLIOCLOG +{ + /** The header. */ + VBGLREQHDR Hdr; + union + { + struct + { + /** The log message. + * The length is determined from the input size and zero termination. */ + char szMsg[RT_FLEXIBLE_ARRAY_IN_NESTED_UNION]; + } In; + } u; +} VBGLIOCLOG, RT_FAR *PVBGLIOCLOG; +/** @} */ + + +/** @name VBGL_IOCTL_WAIT_FOR_EVENTS + * Wait for a VMMDev host event notification. + * @{ + */ +#define VBGL_IOCTL_WAIT_FOR_EVENTS VBGL_IOCTL_CODE_SIZE(10, VBGL_IOCTL_WAIT_FOR_EVENTS_SIZE) +#define VBGL_IOCTL_WAIT_FOR_EVENTS_SIZE sizeof(VBGLIOCWAITFOREVENTS) +#define VBGL_IOCTL_WAIT_FOR_EVENTS_SIZE_IN sizeof(VBGLIOCWAITFOREVENTS) +#define VBGL_IOCTL_WAIT_FOR_EVENTS_SIZE_OUT RT_UOFFSET_AFTER(VBGLIOCWAITFOREVENTS, u.Out) +typedef struct VBGLIOCWAITFOREVENTS +{ + /** The header. */ + VBGLREQHDR Hdr; + union + { + struct + { + /** Timeout in milliseconds. */ + uint32_t cMsTimeOut; + /** Events to wait for. */ + uint32_t fEvents; + } In; + struct + { + /** Events that occurred. */ + uint32_t fEvents; + } Out; + } u; +} VBGLIOCWAITFOREVENTS, RT_FAR *PVBGLIOCWAITFOREVENTS; +AssertCompileSize(VBGLIOCWAITFOREVENTS, 24 + 8); +/** @} */ + + +/** @name VBGL_IOCTL_INTERRUPT_ALL_WAIT_FOR_EVENTS + * IOCTL to VBoxGuest to interrupt (cancel) any pending + * VBGL_IOCTL_WAIT_FOR_EVENTS and return. + * + * Handled inside the guest additions and not seen by the host at all. + * After calling this, VBGL_IOCTL_WAIT_FOR_EVENTS should no longer be called in + * the same session. At the time of writing this is not enforced; at the time + * of reading it may be. + * @see VBGL_IOCTL_WAIT_FOR_EVENTS + * + * @{ + */ +#define VBGL_IOCTL_INTERRUPT_ALL_WAIT_FOR_EVENTS VBGL_IOCTL_CODE_SIZE(11, VBGL_IOCTL_INTERRUPT_ALL_WAIT_FOR_EVENTS_SIZE) +#define VBGL_IOCTL_INTERRUPT_ALL_WAIT_FOR_EVENTS_SIZE sizeof(VBGLREQHDR) +#define VBGL_IOCTL_INTERRUPT_ALL_WAIT_FOR_EVENTS_SIZE_IN sizeof(VBGLREQHDR) +#define VBGL_IOCTL_INTERRUPT_ALL_WAIT_FOR_EVENTS_SIZE_OUT sizeof(VBGLREQHDR) +/** @} */ + + +/** @name VBGL_IOCTL_CHANGE_FILTER_MASK + * IOCTL to VBoxGuest to control the event filter mask. + * @{ */ +#define VBGL_IOCTL_CHANGE_FILTER_MASK VBGL_IOCTL_CODE_SIZE(12, VBGL_IOCTL_CHANGE_FILTER_MASK_SIZE) +#define VBGL_IOCTL_CHANGE_FILTER_MASK_SIZE sizeof(VBGLIOCCHANGEFILTERMASK) +#define VBGL_IOCTL_CHANGE_FILTER_MASK_SIZE_IN sizeof(VBGLIOCCHANGEFILTERMASK) +#define VBGL_IOCTL_CHANGE_FILTER_MASK_SIZE_OUT sizeof(VBGLREQHDR) +typedef struct VBGLIOCCHANGEFILTERMASK +{ + /** The header. */ + VBGLREQHDR Hdr; + union + { + struct + { + /** Flags to set. */ + uint32_t fOrMask; + /** Flags to remove. */ + uint32_t fNotMask; + } In; + } u; +} VBGLIOCCHANGEFILTERMASK, RT_FAR *PVBGLIOCCHANGEFILTERMASK; +AssertCompileSize(VBGLIOCCHANGEFILTERMASK, 24 + 8); +/** @} */ + + +/** @name VBGL_IOCTL_ACQUIRE_GUEST_CAPABILITIES + * IOCTL to for acquiring and releasing guest capabilities. + * + * This is used for multiple purposes: + * 1. By doing @a acquire r3 client application (e.g. VBoxTray) claims it will + * use the given session for performing operations like @a seamless or + * @a auto-resize, thus, if the application terminates, the driver will + * automatically cleanup the caps reported to host, so that host knows guest + * does not support them anymore + * 2. In a multy-user environment this will not allow r3 applications (like + * VBoxTray) running in different user sessions simultaneously to interfere + * with each other. An r3 client application (like VBoxTray) is responsible + * for Acquiring/Releasing caps properly as needed. + * + * + * VERR_RESOURCE_BUSY is returned if any capabilities in the fOrMask are + * currently acquired by some other VBoxGuest session. + * + * @todo Rename to VBGL_IOCTL_ACQUIRE_GUEST_CAPS + * @{ + */ +#define VBGL_IOCTL_ACQUIRE_GUEST_CAPABILITIES VBGL_IOCTL_CODE_SIZE(13, VBGL_IOCTL_ACQUIRE_GUEST_CAPABILITIES_SIZE) +#define VBGL_IOCTL_ACQUIRE_GUEST_CAPABILITIES_SIZE sizeof(VBGLIOCACQUIREGUESTCAPS) +#define VBGL_IOCTL_ACQUIRE_GUEST_CAPABILITIES_SIZE_IN sizeof(VBGLIOCACQUIREGUESTCAPS) +#define VBGL_IOCTL_ACQUIRE_GUEST_CAPABILITIES_SIZE_OUT sizeof(VBGLREQHDR) + +/** Default operation (full acquire/release). */ +#define VBGL_IOC_AGC_FLAGS_DEFAULT UINT32_C(0x00000000) +/** Configures VBoxGuest to use the specified caps in Acquire mode, w/o making + * any caps acquisition/release. This is only possible to set acquire mode for + * caps, but not clear it, so fNotMask is ignored when this flag is set. */ +#define VBGL_IOC_AGC_FLAGS_CONFIG_ACQUIRE_MODE UINT32_C(0x00000001) +/** Valid flag mask. */ +#define VBGL_IOC_AGC_FLAGS_VALID_MASK UINT32_C(0x00000001) + +typedef struct VBGLIOCACQUIREGUESTCAPS +{ + /** The header. */ + VBGLREQHDR Hdr; + union + { + struct + { + /** Acquire flags (VBGL_IOC_AGC_FLAGS_XXX). */ + uint32_t fFlags; + /** Guest capabilities to acquire (VMMDEV_GUEST_SUPPORTS_XXX). */ + uint32_t fOrMask; + /** Guest capabilities to release (VMMDEV_GUEST_SUPPORTS_XXX). */ + uint32_t fNotMask; + } In; + } u; +} VBGLIOCACQUIREGUESTCAPS, RT_FAR *PVBGLIOCACQUIREGUESTCAPS; +AssertCompileSize(VBGLIOCACQUIREGUESTCAPS, 24 + 12); +/** @} */ + + +/** @name VBGL_IOCTL_CHANGE_GUEST_CAPABILITIES + * IOCTL to VBoxGuest to set guest capabilities. + * @{ */ +#define VBGL_IOCTL_CHANGE_GUEST_CAPABILITIES VBGL_IOCTL_CODE_SIZE(14, VBGL_IOCTL_CHANGE_GUEST_CAPABILITIES_SIZE) +#define VBGL_IOCTL_CHANGE_GUEST_CAPABILITIES_SIZE sizeof(VBGLIOCSETGUESTCAPS) +#define VBGL_IOCTL_CHANGE_GUEST_CAPABILITIES_SIZE_IN sizeof(VBGLIOCSETGUESTCAPS) +#define VBGL_IOCTL_CHANGE_GUEST_CAPABILITIES_SIZE_OUT sizeof(VBGLIOCSETGUESTCAPS) +typedef struct VBGLIOCSETGUESTCAPS +{ + /** The header. */ + VBGLREQHDR Hdr; + union + { + struct + { + /** The capabilities to set (VMMDEV_GUEST_SUPPORTS_XXX). */ + uint32_t fOrMask; + /** The capabilities to drop (VMMDEV_GUEST_SUPPORTS_XXX). */ + uint32_t fNotMask; + } In; + struct + { + /** The capabilities held by the session after the call (VMMDEV_GUEST_SUPPORTS_XXX). */ + uint32_t fSessionCaps; + /** The capabilities for all the sessions after the call (VMMDEV_GUEST_SUPPORTS_XXX). */ + uint32_t fGlobalCaps; + } Out; + } u; +} VBGLIOCSETGUESTCAPS, RT_FAR *PVBGLIOCSETGUESTCAPS; +AssertCompileSize(VBGLIOCSETGUESTCAPS, 24 + 8); +typedef VBGLIOCSETGUESTCAPS VBoxGuestSetCapabilitiesInfo; +/** @} */ + + +/** @name VBGL_IOCTL_SET_MOUSE_STATUS + * IOCTL to VBoxGuest to update the mouse status features. + * @{ */ +#define VBGL_IOCTL_SET_MOUSE_STATUS VBGL_IOCTL_CODE_SIZE(15, VBGL_IOCTL_SET_MOUSE_STATUS_SIZE) +#define VBGL_IOCTL_SET_MOUSE_STATUS_SIZE sizeof(VBGLIOCSETMOUSESTATUS) +#define VBGL_IOCTL_SET_MOUSE_STATUS_SIZE_IN sizeof(VBGLIOCSETMOUSESTATUS) +#define VBGL_IOCTL_SET_MOUSE_STATUS_SIZE_OUT sizeof(VBGLREQHDR) +typedef struct VBGLIOCSETMOUSESTATUS +{ + /** The header. */ + VBGLREQHDR Hdr; + union + { + struct + { + /** Mouse status flags (VMMDEV_MOUSE_XXX). */ + uint32_t fStatus; + } In; + } u; +} VBGLIOCSETMOUSESTATUS, RT_FAR *PVBGLIOCSETMOUSESTATUS; +/** @} */ + + +/** @name VBGL_IOCTL_SET_MOUSE_NOTIFY_CALLBACK + * + * IOCTL to for setting the mouse driver callback. + * @note The callback will be called in interrupt context with the VBoxGuest + * device event spinlock held. + * @note ring-0 only. + * + * @{ */ +#define VBGL_IOCTL_SET_MOUSE_NOTIFY_CALLBACK VBGL_IOCTL_CODE_SIZE(16, VBGL_IOCTL_SET_MOUSE_NOTIFY_CALLBACK_SIZE) +#define VBGL_IOCTL_SET_MOUSE_NOTIFY_CALLBACK_SIZE sizeof(VBGLIOCSETMOUSENOTIFYCALLBACK) +#define VBGL_IOCTL_SET_MOUSE_NOTIFY_CALLBACK_SIZE_IN sizeof(VBGLIOCSETMOUSENOTIFYCALLBACK) +#define VBGL_IOCTL_SET_MOUSE_NOTIFY_CALLBACK_SIZE_OUT sizeof(VBGLREQHDR) +typedef struct VBGLIOCSETMOUSENOTIFYCALLBACK +{ + /** The header. */ + VBGLREQHDR Hdr; + union + { + struct + { + /** Mouse notification callback function. */ + PFNVBOXGUESTMOUSENOTIFY pfnNotify; + /** The callback argument. */ + void RT_FAR *pvUser; + } In; + } u; +} VBGLIOCSETMOUSENOTIFYCALLBACK, RT_FAR *PVBGLIOCSETMOUSENOTIFYCALLBACK; +/** @} */ + + +/** @name VBGL_IOCTL_CHECK_BALLOON + * IOCTL to VBoxGuest to check memory ballooning. + * + * The guest kernel module / device driver will ask the host for the current size of + * the balloon and adjust the size. Or it will set fHandledInR0 = false and R3 is + * responsible for allocating memory and calling R0 (VBGL_IOCTL_CHANGE_BALLOON). + * @{ */ +#define VBGL_IOCTL_CHECK_BALLOON VBGL_IOCTL_CODE_SIZE(17, VBGL_IOCTL_CHECK_BALLOON_SIZE) +#define VBGL_IOCTL_CHECK_BALLOON_SIZE sizeof(VBGLIOCCHECKBALLOON) +#define VBGL_IOCTL_CHECK_BALLOON_SIZE_IN sizeof(VBGLREQHDR) +#define VBGL_IOCTL_CHECK_BALLOON_SIZE_OUT sizeof(VBGLIOCCHECKBALLOON) +typedef struct VBGLIOCCHECKBALLOON +{ + /** The header. */ + VBGLREQHDR Hdr; + union + { + struct + { + /** The size of the balloon in chunks of 1MB. */ + uint32_t cBalloonChunks; + /** false = handled in R0, no further action required. + * true = allocate balloon memory in R3. */ + bool fHandleInR3; + /** Explicit padding, please ignore. */ + bool afPadding[3]; + } Out; + } u; +} VBGLIOCCHECKBALLOON, RT_FAR *PVBGLIOCCHECKBALLOON; +AssertCompileSize(VBGLIOCCHECKBALLOON, 24 + 8); +typedef VBGLIOCCHECKBALLOON VBoxGuestCheckBalloonInfo; +/** @} */ + + +/** @name VBGL_IOCTL_CHANGE_BALLOON + * IOCTL to VBoxGuest to supply or revoke one chunk for ballooning. + * + * The guest kernel module / device driver will lock down supplied memory or + * unlock reclaimed memory and then forward the physical addresses of the + * changed balloon chunk to the host. + * + * @{ */ +#define VBGL_IOCTL_CHANGE_BALLOON VBGL_IOCTL_CODE_SIZE(18, VBGL_IOCTL_CHANGE_BALLOON_SIZE) +#define VBGL_IOCTL_CHANGE_BALLOON_SIZE sizeof(VBGLIOCCHANGEBALLOON) +#define VBGL_IOCTL_CHANGE_BALLOON_SIZE_IN sizeof(VBGLIOCCHANGEBALLOON) +#define VBGL_IOCTL_CHANGE_BALLOON_SIZE_OUT sizeof(VBGLREQHDR) +typedef struct VBGLIOCCHANGEBALLOON +{ + /** The header. */ + VBGLREQHDR Hdr; + union + { + struct + { + /** Address of the chunk (user space address). */ + RTR3PTR pvChunk; + /** Explicit alignment padding, MBZ. */ + uint8_t abPadding[ARCH_BITS == 64 ? 0 + 7 : 4 + 7]; + /** true = inflate, false = deflate. */ + bool fInflate; + } In; + } u; +} VBGLIOCCHANGEBALLOON, RT_FAR *PVBGLIOCCHANGEBALLOON; +AssertCompileSize(VBGLIOCCHANGEBALLOON, 24+16); +/** @} */ + + +/** @name VBGL_IOCTL_WRITE_CORE_DUMP + * IOCTL to VBoxGuest to write guest core. + * @{ */ +#define VBGL_IOCTL_WRITE_CORE_DUMP VBGL_IOCTL_CODE_SIZE(19, VBGL_IOCTL_WRITE_CORE_DUMP_SIZE) +#define VBGL_IOCTL_WRITE_CORE_DUMP_SIZE sizeof(VBGLIOCWRITECOREDUMP) +#define VBGL_IOCTL_WRITE_CORE_DUMP_SIZE_IN sizeof(VBGLIOCWRITECOREDUMP) +#define VBGL_IOCTL_WRITE_CORE_DUMP_SIZE_OUT sizeof(VBGLREQHDR) +typedef struct VBGLIOCWRITECOREDUMP +{ + /** The header. */ + VBGLREQHDR Hdr; + union + { + struct + { + /** Flags (reserved, MBZ). */ + uint32_t fFlags; + } In; + } u; +} VBGLIOCWRITECOREDUMP, RT_FAR *PVBGLIOCWRITECOREDUMP; +AssertCompileSize(VBGLIOCWRITECOREDUMP, 24 + 4); +typedef VBGLIOCWRITECOREDUMP VBoxGuestWriteCoreDump; +/** @} */ + + +#ifdef VBOX_WITH_DPC_LATENCY_CHECKER +/** @name VBGL_IOCTL_DPC_LATENCY_CHECKER + * IOCTL to VBoxGuest to perform DPC latency tests, printing the result in + * the release log on the host. Takes no data, returns no data. + * @{ */ +# define VBGL_IOCTL_DPC_LATENCY_CHECKER VBGL_IOCTL_CODE_SIZE(20, VBGL_IOCTL_DPC_LATENCY_CHECKER_SIZE) +# define VBGL_IOCTL_DPC_LATENCY_CHECKER_SIZE sizeof(VBGLREQHDR) +# define VBGL_IOCTL_DPC_LATENCY_CHECKER_SIZE_IN sizeof(VBGLREQHDR) +# define VBGL_IOCTL_DPC_LATENCY_CHECKER_SIZE_OUT sizeof(VBGLREQHDR) +/** @} */ +#endif + + +#ifdef RT_OS_OS2 +/** + * The data buffer layout for the IDC entry point (AttachDD). + * + * @remark This is defined in multiple 16-bit headers / sources. + * Some places it's called VBGOS2IDC to short things a bit. + */ +typedef struct VBGLOS2ATTACHDD +{ + /** VBGL_IOC_VERSION. */ + uint32_t u32Version; + /** Opaque session handle. */ + uint32_t u32Session; + + /** + * The 32-bit service entry point. + * + * @returns VBox status code. + * @param u32Session The session handle (PVBOXGUESTSESSION). + * @param iFunction The requested function. + * @param pReqHdr The input/output data buffer. The caller + * ensures that this cannot be swapped out, or that + * it's acceptable to take a page in fault in the + * current context. If the request doesn't take + * input or produces output, apssing NULL is okay. + * @param cbReq The size of the data buffer. + */ +# if ARCH_BITS == 32 || defined(DOXYGEN_RUNNING) + DECLCALLBACKMEMBER(int, pfnServiceEP,(uint32_t u32Session, unsigned iFunction, PVBGLREQHDR pReqHdr, size_t cbReq)); +# else + uint32_t pfnServiceEP; +#endif + + /** The 16-bit service entry point for C code (cdecl). + * + * It's the same as the 32-bit entry point, but the types has + * changed to 16-bit equivalents. + * + * @code + * int far cdecl + * VBoxGuestOs2IDCService16(uint32_t u32Session, uint16_t iFunction, + * PVBGLREQHDR fpvData, uint16_t cbData); + * @endcode + */ +# if ARCH_BITS == 16 || defined(DOXYGEN_RUNNING) + DECLCALLBACKMEMBER(int, fpfnServiceEP,(uint32_t u32Session, uint16_t iFunction, PVBGLREQHDR fpvData, uint16_t cbData)); +# else + RTFAR16 fpfnServiceEP; +# endif + + /** The 16-bit service entry point for Assembly code (register). + * + * This is just a wrapper around fpfnServiceEP to simplify calls + * from 16-bit assembly code. + * + * @returns (e)ax: VBox status code; cx: The amount of data returned. + * + * @param u32Session eax - The above session handle. + * @param iFunction dl - The requested function. + * @param pvData es:bx - The input/output data buffer. + * @param cbData cx - The size of the data buffer. + */ + RTFAR16 fpfnServiceAsmEP; +} VBGLOS2ATTACHDD; +/** Pointer to VBOXGUESTOS2IDCCONNECT buffer. */ +typedef VBGLOS2ATTACHDD RT_FAR *PVBGLOS2ATTACHDD; + +/** + * Prototype for the 16-bit callback returned by AttachDD on OS/2. + * @param pAttachInfo Pointer to structure to fill in. + */ +# if defined(__IBMC__) || defined(__IBMCPP__) +typedef void (* __cdecl RT_FAR_CODE PFNVBGLOS2ATTACHDD)(PVBGLOS2ATTACHDD pAttachInfo); +# else +typedef void (__cdecl RT_FAR_CODE *PFNVBGLOS2ATTACHDD)(PVBGLOS2ATTACHDD pAttachInfo); +# endif +#endif /* RT_OS_OS2 */ + + +/** @name VBGL_IOCL_IDC_CONNECT + * IDC client connect request. + * + * On platforms other than Windows and OS/2, this will also create a kernel + * session for the caller. + * + * @note ring-0 only. + * @{ + */ +#define VBGL_IOCTL_IDC_CONNECT VBGL_IOCTL_CODE_SIZE(63, VBGL_IOCTL_IDC_CONNECT_SIZE) +#define VBGL_IOCTL_IDC_CONNECT_SIZE sizeof(VBGLIOCIDCCONNECT) +#define VBGL_IOCTL_IDC_CONNECT_SIZE_IN RT_UOFFSET_AFTER(VBGLIOCIDCCONNECT, u.In) +#define VBGL_IOCTL_IDC_CONNECT_SIZE_OUT sizeof(VBGLIOCIDCCONNECT) +typedef struct VBGLIOCIDCCONNECT +{ + /** The header. */ + VBGLREQHDR Hdr; + /** The payload union. */ + union + { + struct + { + /** VBGL_IOCTL_IDC_CONNECT_MAGIC_COOKIE. */ + uint32_t u32MagicCookie; + /** The desired version of the I/O control interface (VBGL_IOC_VERSION). */ + uint32_t uReqVersion; + /** The minimum version of the I/O control interface (VBGL_IOC_VERSION). */ + uint32_t uMinVersion; + /** Reserved, MBZ. */ + uint32_t uReserved; + } In; + struct + { + /** The session handle (opaque). */ +#if ARCH_BITS >= 32 + void RT_FAR *pvSession; +#else + uint32_t pvSession; +#endif + /** The version of the I/O control interface for this session + * (typically VBGL_IOC_VERSION). */ + uint32_t uSessionVersion; + /** The I/O control interface version for of the driver (VBGL_IOC_VERSION). */ + uint32_t uDriverVersion; + /** The SVN revision of the driver. + * This will be set to 0 if not compiled into the driver. */ + uint32_t uDriverRevision; + /** Reserved \#1 (will be returned as zero until defined). */ + uint32_t uReserved1; + /** Reserved \#2 (will be returned as NULL until defined). */ + void RT_FAR *pvReserved2; + } Out; + } u; +} VBGLIOCIDCCONNECT, RT_FAR *PVBGLIOCIDCCONNECT; +AssertCompileSize(VBGLIOCIDCCONNECT, 24 + 16 + (ARCH_BITS == 64 ? 8 : 4) * 2); +#if !defined(__GNUC__) /* Some GCC versions can't handle the complicated RT_UOFFSET_AFTER macro, it seems. */ \ + && (!defined(RT_OS_OS2) || (!defined(__IBMC__) && !defined(__IBMCPP__) && (!defined(__WATCOMC__) || !defined(__cplusplus)))) +AssertCompile(VBGL_IOCTL_IDC_CONNECT_SIZE_IN == 24 + 16); +#endif +#define VBGL_IOCTL_IDC_CONNECT_MAGIC_COOKIE UINT32_C(0x55aa4d5a) /**< Magic value for doing an IDC connect. */ +/** @} */ + + +/** @name VBGL_IOCL_IDC_DISCONNECT + * IDC client disconnect request. + * + * This will destroy the kernel session associated with the IDC connection. + * + * @note ring-0 only. + * @{ + */ +#define VBGL_IOCTL_IDC_DISCONNECT VBGL_IOCTL_CODE_SIZE(62, VBGL_IOCTL_IDC_DISCONNECT_SIZE) +#define VBGL_IOCTL_IDC_DISCONNECT_SIZE sizeof(VBGLIOCIDCDISCONNECT) +#define VBGL_IOCTL_IDC_DISCONNECT_SIZE_IN sizeof(VBGLIOCIDCDISCONNECT) +#define VBGL_IOCTL_IDC_DISCONNECT_SIZE_OUT sizeof(VBGLREQHDR) +typedef struct VBGLIOCIDCDISCONNECT +{ + /** The header. */ + VBGLREQHDR Hdr; + union + { + struct + { + /** The session handle for platforms where this is needed. */ +#if ARCH_BITS >= 32 + void RT_FAR *pvSession; +#else + uint32_t pvSession; +#endif + } In; + } u; +} VBGLIOCIDCDISCONNECT, RT_FAR *PVBGLIOCIDCDISCONNECT; +AssertCompileSize(VBGLIOCIDCDISCONNECT, 24 + (ARCH_BITS == 64 ? 8 : 4)); +/** @} */ + + +#if !defined(RT_OS_WINDOWS) && !defined(RT_OS_OS2) +RT_C_DECLS_BEGIN +/** + * The VBoxGuest IDC entry point. + * + * @returns VBox status code. + * @param pvSession The session. + * @param uReq The request code. + * @param pReqHdr The request. + * @param cbReq The request size. + */ +int VBOXCALL VBoxGuestIDC(void RT_FAR *pvSession, uintptr_t uReq, PVBGLREQHDR pReqHdr, size_t cbReq); +RT_C_DECLS_END +#endif + + +#if defined(RT_OS_LINUX) || defined(RT_OS_SOLARIS) || defined(RT_OS_FREEBSD) + +/* Private IOCtls between user space and the kernel video driver. DRM private + * IOCtls always have the type 'd' and a number between 0x40 and 0x99 (0x9F?) */ + +# define VBOX_DRM_IOCTL(a) (0x40 + DRM_VBOX_ ## a) + +/** Stop using HGSMI in the kernel driver until it is re-enabled, so that a + * user-space driver can use it. It must be re-enabled before the kernel + * driver can be used again in a sensible way. */ +/** @note These IOCtls was removed from the code, but are left here as + * templates as we may need similar ones in future. */ +# define DRM_VBOX_DISABLE_HGSMI 0 +# define DRM_IOCTL_VBOX_DISABLE_HGSMI VBOX_DRM_IOCTL(DISABLE_HGSMI) +# define VBOXVIDEO_IOCTL_DISABLE_HGSMI _IO('d', DRM_IOCTL_VBOX_DISABLE_HGSMI) +/** Enable HGSMI in the kernel driver after it was previously disabled. */ +# define DRM_VBOX_ENABLE_HGSMI 1 +# define DRM_IOCTL_VBOX_ENABLE_HGSMI VBOX_DRM_IOCTL(ENABLE_HGSMI) +# define VBOXVIDEO_IOCTL_ENABLE_HGSMI _IO('d', DRM_IOCTL_VBOX_ENABLE_HGSMI) + +#endif /* RT_OS_LINUX || RT_OS_SOLARIS || RT_OS_FREEBSD */ + +#endif /* !defined(IN_RC) && !defined(IN_RING0_AGNOSTIC) && !defined(IPRT_NO_CRT) */ + +/** @} */ + +/** @} */ +#endif /* !VBOX_INCLUDED_VBoxGuest_h */ + |