virt: Add vboxguest driver for Virtual Box Guest integration UAPI (f6ddd094) · Commits · e / devices / android_kernel_fairphone_FP4

MAINTAINERS

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		@@ -14557,6 +14557,13 @@ S: Maintained
		F: drivers/virtio/virtio_input.c
		F: include/uapi/linux/virtio_input.h

		VIRTUAL BOX GUEST DEVICE DRIVER
		M: Hans de Goede <hdegoede@redhat.com>
		M: Arnd Bergmann <arnd@arndb.de>
		M: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
		S: Maintained
		F: include/uapi/linux/vbox*.h

		VIRTUAL SERIO DEVICE DRIVER
		M: Stephen Chandler Paul <thatslyude@gmail.com>
		S: Maintained

include/uapi/linux/vbox_err.h

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		/* SPDX-License-Identifier: MIT */
		/* Copyright (C) 2017 Oracle Corporation */

		#ifndef __UAPI_VBOX_ERR_H__
		#define __UAPI_VBOX_ERR_H__

		#define VINF_SUCCESS 0
		#define VERR_GENERAL_FAILURE (-1)
		#define VERR_INVALID_PARAMETER (-2)
		#define VERR_INVALID_MAGIC (-3)
		#define VERR_INVALID_HANDLE (-4)
		#define VERR_LOCK_FAILED (-5)
		#define VERR_INVALID_POINTER (-6)
		#define VERR_IDT_FAILED (-7)
		#define VERR_NO_MEMORY (-8)
		#define VERR_ALREADY_LOADED (-9)
		#define VERR_PERMISSION_DENIED (-10)
		#define VERR_VERSION_MISMATCH (-11)
		#define VERR_NOT_IMPLEMENTED (-12)
		#define VERR_INVALID_FLAGS (-13)

		#define VERR_NOT_EQUAL (-18)
		#define VERR_NOT_SYMLINK (-19)
		#define VERR_NO_TMP_MEMORY (-20)
		#define VERR_INVALID_FMODE (-21)
		#define VERR_WRONG_ORDER (-22)
		#define VERR_NO_TLS_FOR_SELF (-23)
		#define VERR_FAILED_TO_SET_SELF_TLS (-24)
		#define VERR_NO_CONT_MEMORY (-26)
		#define VERR_NO_PAGE_MEMORY (-27)
		#define VERR_THREAD_IS_DEAD (-29)
		#define VERR_THREAD_NOT_WAITABLE (-30)
		#define VERR_PAGE_TABLE_NOT_PRESENT (-31)
		#define VERR_INVALID_CONTEXT (-32)
		#define VERR_TIMER_BUSY (-33)
		#define VERR_ADDRESS_CONFLICT (-34)
		#define VERR_UNRESOLVED_ERROR (-35)
		#define VERR_INVALID_FUNCTION (-36)
		#define VERR_NOT_SUPPORTED (-37)
		#define VERR_ACCESS_DENIED (-38)
		#define VERR_INTERRUPTED (-39)
		#define VERR_TIMEOUT (-40)
		#define VERR_BUFFER_OVERFLOW (-41)
		#define VERR_TOO_MUCH_DATA (-42)
		#define VERR_MAX_THRDS_REACHED (-43)
		#define VERR_MAX_PROCS_REACHED (-44)
		#define VERR_SIGNAL_REFUSED (-45)
		#define VERR_SIGNAL_PENDING (-46)
		#define VERR_SIGNAL_INVALID (-47)
		#define VERR_STATE_CHANGED (-48)
		#define VERR_INVALID_UUID_FORMAT (-49)
		#define VERR_PROCESS_NOT_FOUND (-50)
		#define VERR_PROCESS_RUNNING (-51)
		#define VERR_TRY_AGAIN (-52)
		#define VERR_PARSE_ERROR (-53)
		#define VERR_OUT_OF_RANGE (-54)
		#define VERR_NUMBER_TOO_BIG (-55)
		#define VERR_NO_DIGITS (-56)
		#define VERR_NEGATIVE_UNSIGNED (-57)
		#define VERR_NO_TRANSLATION (-58)

		#define VERR_NOT_FOUND (-78)
		#define VERR_INVALID_STATE (-79)
		#define VERR_OUT_OF_RESOURCES (-80)

		#define VERR_FILE_NOT_FOUND (-102)
		#define VERR_PATH_NOT_FOUND (-103)
		#define VERR_INVALID_NAME (-104)
		#define VERR_ALREADY_EXISTS (-105)
		#define VERR_TOO_MANY_OPEN_FILES (-106)
		#define VERR_SEEK (-107)
		#define VERR_NEGATIVE_SEEK (-108)
		#define VERR_SEEK_ON_DEVICE (-109)
		#define VERR_EOF (-110)
		#define VERR_READ_ERROR (-111)
		#define VERR_WRITE_ERROR (-112)
		#define VERR_WRITE_PROTECT (-113)
		#define VERR_SHARING_VIOLATION (-114)
		#define VERR_FILE_LOCK_FAILED (-115)
		#define VERR_FILE_LOCK_VIOLATION (-116)
		#define VERR_CANT_CREATE (-117)
		#define VERR_CANT_DELETE_DIRECTORY (-118)
		#define VERR_NOT_SAME_DEVICE (-119)
		#define VERR_FILENAME_TOO_LONG (-120)
		#define VERR_MEDIA_NOT_PRESENT (-121)
		#define VERR_MEDIA_NOT_RECOGNIZED (-122)
		#define VERR_FILE_NOT_LOCKED (-123)
		#define VERR_FILE_LOCK_LOST (-124)
		#define VERR_DIR_NOT_EMPTY (-125)
		#define VERR_NOT_A_DIRECTORY (-126)
		#define VERR_IS_A_DIRECTORY (-127)
		#define VERR_FILE_TOO_BIG (-128)

		#define VERR_NET_IO_ERROR (-400)
		#define VERR_NET_OUT_OF_RESOURCES (-401)
		#define VERR_NET_HOST_NOT_FOUND (-402)
		#define VERR_NET_PATH_NOT_FOUND (-403)
		#define VERR_NET_PRINT_ERROR (-404)
		#define VERR_NET_NO_NETWORK (-405)
		#define VERR_NET_NOT_UNIQUE_NAME (-406)

		#define VERR_NET_IN_PROGRESS (-436)
		#define VERR_NET_ALREADY_IN_PROGRESS (-437)
		#define VERR_NET_NOT_SOCKET (-438)
		#define VERR_NET_DEST_ADDRESS_REQUIRED (-439)
		#define VERR_NET_MSG_SIZE (-440)
		#define VERR_NET_PROTOCOL_TYPE (-441)
		#define VERR_NET_PROTOCOL_NOT_AVAILABLE (-442)
		#define VERR_NET_PROTOCOL_NOT_SUPPORTED (-443)
		#define VERR_NET_SOCKET_TYPE_NOT_SUPPORTED (-444)
		#define VERR_NET_OPERATION_NOT_SUPPORTED (-445)
		#define VERR_NET_PROTOCOL_FAMILY_NOT_SUPPORTED (-446)
		#define VERR_NET_ADDRESS_FAMILY_NOT_SUPPORTED (-447)
		#define VERR_NET_ADDRESS_IN_USE (-448)
		#define VERR_NET_ADDRESS_NOT_AVAILABLE (-449)
		#define VERR_NET_DOWN (-450)
		#define VERR_NET_UNREACHABLE (-451)
		#define VERR_NET_CONNECTION_RESET (-452)
		#define VERR_NET_CONNECTION_ABORTED (-453)
		#define VERR_NET_CONNECTION_RESET_BY_PEER (-454)
		#define VERR_NET_NO_BUFFER_SPACE (-455)
		#define VERR_NET_ALREADY_CONNECTED (-456)
		#define VERR_NET_NOT_CONNECTED (-457)
		#define VERR_NET_SHUTDOWN (-458)
		#define VERR_NET_TOO_MANY_REFERENCES (-459)
		#define VERR_NET_CONNECTION_TIMED_OUT (-460)
		#define VERR_NET_CONNECTION_REFUSED (-461)
		#define VERR_NET_HOST_DOWN (-464)
		#define VERR_NET_HOST_UNREACHABLE (-465)
		#define VERR_NET_PROTOCOL_ERROR (-466)
		#define VERR_NET_INCOMPLETE_TX_PACKET (-467)

		/* misc. unsorted codes */
		#define VERR_RESOURCE_BUSY (-138)
		#define VERR_DISK_FULL (-152)
		#define VERR_TOO_MANY_SYMLINKS (-156)
		#define VERR_NO_MORE_FILES (-201)
		#define VERR_INTERNAL_ERROR (-225)
		#define VERR_INTERNAL_ERROR_2 (-226)
		#define VERR_INTERNAL_ERROR_3 (-227)
		#define VERR_INTERNAL_ERROR_4 (-228)
		#define VERR_DEV_IO_ERROR (-250)
		#define VERR_IO_BAD_LENGTH (-255)
		#define VERR_BROKEN_PIPE (-301)
		#define VERR_NO_DATA (-304)
		#define VERR_SEM_DESTROYED (-363)
		#define VERR_DEADLOCK (-365)
		#define VERR_BAD_EXE_FORMAT (-608)
		#define VINF_HGCM_ASYNC_EXECUTE (2903)

		#endif

include/uapi/linux/vbox_vmmdev_types.h

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		/* SPDX-License-Identifier: (GPL-2.0 OR CDDL-1.0) */
		/*
		* Virtual Device for Guest <-> VMM/Host communication, type definitions
		* which are also used for the vboxguest ioctl interface / by vboxsf
		*
		* Copyright (C) 2006-2016 Oracle Corporation
		*/

		#ifndef __UAPI_VBOX_VMMDEV_TYPES_H__
		#define __UAPI_VBOX_VMMDEV_TYPES_H__

		#include <asm/bitsperlong.h>
		#include <linux/types.h>

		/*
		* We cannot use linux' compiletime_assert here because it expects to be used
		* inside a function only. Use a typedef to a char array with a negative size.
		*/
		#define VMMDEV_ASSERT_SIZE(type, size) \
		typedef char type ## _asrt_size[1 - 2*!!(sizeof(struct type) != (size))]

		/** enum vmmdev_request_type - VMMDev request types. */
		enum vmmdev_request_type {
		VMMDEVREQ_INVALID_REQUEST = 0,
		VMMDEVREQ_GET_MOUSE_STATUS = 1,
		VMMDEVREQ_SET_MOUSE_STATUS = 2,
		VMMDEVREQ_SET_POINTER_SHAPE = 3,
		VMMDEVREQ_GET_HOST_VERSION = 4,
		VMMDEVREQ_IDLE = 5,
		VMMDEVREQ_GET_HOST_TIME = 10,
		VMMDEVREQ_GET_HYPERVISOR_INFO = 20,
		VMMDEVREQ_SET_HYPERVISOR_INFO = 21,
		VMMDEVREQ_REGISTER_PATCH_MEMORY = 22, /* since version 3.0.6 */
		VMMDEVREQ_DEREGISTER_PATCH_MEMORY = 23, /* since version 3.0.6 */
		VMMDEVREQ_SET_POWER_STATUS = 30,
		VMMDEVREQ_ACKNOWLEDGE_EVENTS = 41,
		VMMDEVREQ_CTL_GUEST_FILTER_MASK = 42,
		VMMDEVREQ_REPORT_GUEST_INFO = 50,
		VMMDEVREQ_REPORT_GUEST_INFO2 = 58, /* since version 3.2.0 */
		VMMDEVREQ_REPORT_GUEST_STATUS = 59, /* since version 3.2.8 */
		VMMDEVREQ_REPORT_GUEST_USER_STATE = 74, /* since version 4.3 */
		/* Retrieve a display resize request sent by the host, deprecated. */
		VMMDEVREQ_GET_DISPLAY_CHANGE_REQ = 51,
		VMMDEVREQ_VIDEMODE_SUPPORTED = 52,
		VMMDEVREQ_GET_HEIGHT_REDUCTION = 53,
		/**
		* @VMMDEVREQ_GET_DISPLAY_CHANGE_REQ2:
		* Retrieve a display resize request sent by the host.
		*
		* Queries a display resize request sent from the host. If the
		* event_ack member is sent to true and there is an unqueried request
		* available for one of the virtual display then that request will
		* be returned. If several displays have unqueried requests the lowest
		* numbered display will be chosen first. Only the most recent unseen
		* request for each display is remembered.
		* If event_ack is set to false, the last host request queried with
		* event_ack set is resent, or failing that the most recent received
		* from the host. If no host request was ever received then all zeros
		* are returned.
		*/
		VMMDEVREQ_GET_DISPLAY_CHANGE_REQ2 = 54,
		VMMDEVREQ_REPORT_GUEST_CAPABILITIES = 55,
		VMMDEVREQ_SET_GUEST_CAPABILITIES = 56,
		VMMDEVREQ_VIDEMODE_SUPPORTED2 = 57, /* since version 3.2.0 */
		VMMDEVREQ_GET_DISPLAY_CHANGE_REQEX = 80, /* since version 4.2.4 */
		VMMDEVREQ_HGCM_CONNECT = 60,
		VMMDEVREQ_HGCM_DISCONNECT = 61,
		VMMDEVREQ_HGCM_CALL32 = 62,
		VMMDEVREQ_HGCM_CALL64 = 63,
		VMMDEVREQ_HGCM_CANCEL = 64,
		VMMDEVREQ_HGCM_CANCEL2 = 65,
		VMMDEVREQ_VIDEO_ACCEL_ENABLE = 70,
		VMMDEVREQ_VIDEO_ACCEL_FLUSH = 71,
		VMMDEVREQ_VIDEO_SET_VISIBLE_REGION = 72,
		VMMDEVREQ_GET_SEAMLESS_CHANGE_REQ = 73,
		VMMDEVREQ_QUERY_CREDENTIALS = 100,
		VMMDEVREQ_REPORT_CREDENTIALS_JUDGEMENT = 101,
		VMMDEVREQ_REPORT_GUEST_STATS = 110,
		VMMDEVREQ_GET_MEMBALLOON_CHANGE_REQ = 111,
		VMMDEVREQ_GET_STATISTICS_CHANGE_REQ = 112,
		VMMDEVREQ_CHANGE_MEMBALLOON = 113,
		VMMDEVREQ_GET_VRDPCHANGE_REQ = 150,
		VMMDEVREQ_LOG_STRING = 200,
		VMMDEVREQ_GET_CPU_HOTPLUG_REQ = 210,
		VMMDEVREQ_SET_CPU_HOTPLUG_STATUS = 211,
		VMMDEVREQ_REGISTER_SHARED_MODULE = 212,
		VMMDEVREQ_UNREGISTER_SHARED_MODULE = 213,
		VMMDEVREQ_CHECK_SHARED_MODULES = 214,
		VMMDEVREQ_GET_PAGE_SHARING_STATUS = 215,
		VMMDEVREQ_DEBUG_IS_PAGE_SHARED = 216,
		VMMDEVREQ_GET_SESSION_ID = 217, /* since version 3.2.8 */
		VMMDEVREQ_WRITE_COREDUMP = 218,
		VMMDEVREQ_GUEST_HEARTBEAT = 219,
		VMMDEVREQ_HEARTBEAT_CONFIGURE = 220,
		/* Ensure the enum is a 32 bit data-type */
		VMMDEVREQ_SIZEHACK = 0x7fffffff
		};

		#if __BITS_PER_LONG == 64
		#define VMMDEVREQ_HGCM_CALL VMMDEVREQ_HGCM_CALL64
		#else
		#define VMMDEVREQ_HGCM_CALL VMMDEVREQ_HGCM_CALL32
		#endif

		/** HGCM service location types. */
		enum vmmdev_hgcm_service_location_type {
		VMMDEV_HGCM_LOC_INVALID = 0,
		VMMDEV_HGCM_LOC_LOCALHOST = 1,
		VMMDEV_HGCM_LOC_LOCALHOST_EXISTING = 2,
		/* Ensure the enum is a 32 bit data-type */
		VMMDEV_HGCM_LOC_SIZEHACK = 0x7fffffff
		};

		/** HGCM host service location. */
		struct vmmdev_hgcm_service_location_localhost {
		/** Service name */
		char service_name[128];
		};
		VMMDEV_ASSERT_SIZE(vmmdev_hgcm_service_location_localhost, 128);

		/** HGCM service location. */
		struct vmmdev_hgcm_service_location {
		/** Type of the location. */
		enum vmmdev_hgcm_service_location_type type;

		union {
		struct vmmdev_hgcm_service_location_localhost localhost;
		} u;
		};
		VMMDEV_ASSERT_SIZE(vmmdev_hgcm_service_location, 128 + 4);

		/** HGCM function parameter type. */
		enum vmmdev_hgcm_function_parameter_type {
		VMMDEV_HGCM_PARM_TYPE_INVALID = 0,
		VMMDEV_HGCM_PARM_TYPE_32BIT = 1,
		VMMDEV_HGCM_PARM_TYPE_64BIT = 2,
		/** Deprecated Doesn't work, use PAGELIST. */
		VMMDEV_HGCM_PARM_TYPE_PHYSADDR = 3,
		/** In and Out, user-memory */
		VMMDEV_HGCM_PARM_TYPE_LINADDR = 4,
		/** In, user-memory (read; host<-guest) */
		VMMDEV_HGCM_PARM_TYPE_LINADDR_IN = 5,
		/** Out, user-memory (write; host->guest) */
		VMMDEV_HGCM_PARM_TYPE_LINADDR_OUT = 6,
		/** In and Out, kernel-memory */
		VMMDEV_HGCM_PARM_TYPE_LINADDR_KERNEL = 7,
		/** In, kernel-memory (read; host<-guest) */
		VMMDEV_HGCM_PARM_TYPE_LINADDR_KERNEL_IN = 8,
		/** Out, kernel-memory (write; host->guest) */
		VMMDEV_HGCM_PARM_TYPE_LINADDR_KERNEL_OUT = 9,
		/** Physical addresses of locked pages for a buffer. */
		VMMDEV_HGCM_PARM_TYPE_PAGELIST = 10,
		/* Ensure the enum is a 32 bit data-type */
		VMMDEV_HGCM_PARM_TYPE_SIZEHACK = 0x7fffffff
		};

		/** HGCM function parameter, 32-bit client. */
		struct vmmdev_hgcm_function_parameter32 {
		enum vmmdev_hgcm_function_parameter_type type;
		union {
		__u32 value32;
		__u64 value64;
		struct {
		__u32 size;
		union {
		__u32 phys_addr;
		__u32 linear_addr;
		} u;
		} pointer;
		struct {
		/** Size of the buffer described by the page list. */
		__u32 size;
		/** Relative to the request header. */
		__u32 offset;
		} page_list;
		} u;
		} __packed;
		VMMDEV_ASSERT_SIZE(vmmdev_hgcm_function_parameter32, 4 + 8);

		/** HGCM function parameter, 64-bit client. */
		struct vmmdev_hgcm_function_parameter64 {
		enum vmmdev_hgcm_function_parameter_type type;
		union {
		__u32 value32;
		__u64 value64;
		struct {
		__u32 size;
		union {
		__u64 phys_addr;
		__u64 linear_addr;
		} u;
		} __packed pointer;
		struct {
		/** Size of the buffer described by the page list. */
		__u32 size;
		/** Relative to the request header. */
		__u32 offset;
		} page_list;
		} __packed u;
		} __packed;
		VMMDEV_ASSERT_SIZE(vmmdev_hgcm_function_parameter64, 4 + 12);

		#if __BITS_PER_LONG == 64
		#define vmmdev_hgcm_function_parameter vmmdev_hgcm_function_parameter64
		#else
		#define vmmdev_hgcm_function_parameter vmmdev_hgcm_function_parameter32
		#endif

		#define VMMDEV_HGCM_F_PARM_DIRECTION_NONE 0x00000000U
		#define VMMDEV_HGCM_F_PARM_DIRECTION_TO_HOST 0x00000001U
		#define VMMDEV_HGCM_F_PARM_DIRECTION_FROM_HOST 0x00000002U
		#define VMMDEV_HGCM_F_PARM_DIRECTION_BOTH 0x00000003U

		/**
		* struct vmmdev_hgcm_pagelist - VMMDEV_HGCM_PARM_TYPE_PAGELIST parameters
		* point to this structure to actually describe the buffer.
		*/
		struct vmmdev_hgcm_pagelist {
		__u32 flags; /** VMMDEV_HGCM_F_PARM_. /
		__u16 offset_first_page; /** Data offset in the first page. */
		__u16 page_count; /** Number of pages. */
		__u64 pages[1]; /** Page addresses. */
		};
		VMMDEV_ASSERT_SIZE(vmmdev_hgcm_pagelist, 4 + 2 + 2 + 8);

		#endif

include/uapi/linux/vboxguest.h

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		/* SPDX-License-Identifier: (GPL-2.0 OR CDDL-1.0) */
		/*
		* VBoxGuest - VirtualBox Guest Additions Driver Interface.
		*
		* Copyright (C) 2006-2016 Oracle Corporation
		*/

		#ifndef __UAPI_VBOXGUEST_H__
		#define __UAPI_VBOXGUEST_H__

		#include <asm/bitsperlong.h>
		#include <linux/ioctl.h>
		#include <linux/vbox_err.h>
		#include <linux/vbox_vmmdev_types.h>

		/* Version of vbg_ioctl_hdr structure. */
		#define VBG_IOCTL_HDR_VERSION 0x10001
		/* Default request type. Use this for non-VMMDev requests. */
		#define VBG_IOCTL_HDR_TYPE_DEFAULT 0

		/**
		* Common ioctl header.
		*
		* This is a mirror of vmmdev_request_header to prevent duplicating data and
		* needing to verify things multiple times.
		*/
		struct vbg_ioctl_hdr {
		/** IN: The request input size, and output size if size_out is zero. */
		__u32 size_in;
		/** IN: Structure version (VBG_IOCTL_HDR_VERSION) */
		__u32 version;
		/** IN: The VMMDev request type or VBG_IOCTL_HDR_TYPE_DEFAULT. */
		__u32 type;
		/**
		* OUT: The VBox status code of the operation, out direction only.
		* This is a VINF_ or VERR_ value as defined in vbox_err.h.
		*/
		__s32 rc;
		/** IN: Output size. Set to zero to use size_in as output size. */
		__u32 size_out;
		/** Reserved, MBZ. */
		__u32 reserved;
		};
		VMMDEV_ASSERT_SIZE(vbg_ioctl_hdr, 24);


		/*
		* 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 VBG_IOC_VERSION 0x00010000u

		/**
		* VBG_IOCTL_DRIVER_VERSION_INFO data structure
		*
		* Note VBG_IOCTL_DRIVER_VERSION_INFO may switch the session to a backwards
		* compatible interface version if uClientVersion indicates older client code.
		*/
		struct vbg_ioctl_driver_version_info {
		/** The header. */
		struct vbg_ioctl_hdr hdr;
		union {
		struct {
		/** Requested interface version (VBG_IOC_VERSION). */
		__u32 req_version;
		/**
		* Minimum interface version number (typically the
		* major version part of VBG_IOC_VERSION).
		*/
		__u32 min_version;
		/** Reserved, MBZ. */
		__u32 reserved1;
		/** Reserved, MBZ. */
		__u32 reserved2;
		} in;
		struct {
		/** Version for this session (typ. VBG_IOC_VERSION). */
		__u32 session_version;
		/** Version of the IDC interface (VBG_IOC_VERSION). */
		__u32 driver_version;
		/** The SVN revision of the driver, or 0. */
		__u32 driver_revision;
		/** Reserved \#1 (zero until defined). */
		__u32 reserved1;
		/** Reserved \#2 (zero until defined). */
		__u32 reserved2;
		} out;
		} u;
		};
		VMMDEV_ASSERT_SIZE(vbg_ioctl_driver_version_info, 24 + 20);

		#define VBG_IOCTL_DRIVER_VERSION_INFO \
		_IOWR('V', 0, struct vbg_ioctl_driver_version_info)


		/* IOCTL to perform a VMM Device request less than 1KB in size. */
		#define VBG_IOCTL_VMMDEV_REQUEST(s) _IOC(_IOC_READ \| _IOC_WRITE, 'V', 2, s)


		/* IOCTL to perform a VMM Device request larger then 1KB. */
		#define VBG_IOCTL_VMMDEV_REQUEST_BIG _IOC(_IOC_READ \| _IOC_WRITE, 'V', 3, 0)


		/** VBG_IOCTL_HGCM_CONNECT data structure. */
		struct vbg_ioctl_hgcm_connect {
		struct vbg_ioctl_hdr hdr;
		union {
		struct {
		struct vmmdev_hgcm_service_location loc;
		} in;
		struct {
		__u32 client_id;
		} out;
		} u;
		};
		VMMDEV_ASSERT_SIZE(vbg_ioctl_hgcm_connect, 24 + 132);

		#define VBG_IOCTL_HGCM_CONNECT \
		_IOWR('V', 4, struct vbg_ioctl_hgcm_connect)


		/** VBG_IOCTL_HGCM_DISCONNECT data structure. */
		struct vbg_ioctl_hgcm_disconnect {
		struct vbg_ioctl_hdr hdr;
		union {
		struct {
		__u32 client_id;
		} in;
		} u;
		};
		VMMDEV_ASSERT_SIZE(vbg_ioctl_hgcm_disconnect, 24 + 4);

		#define VBG_IOCTL_HGCM_DISCONNECT \
		_IOWR('V', 5, struct vbg_ioctl_hgcm_disconnect)


		/** VBG_IOCTL_HGCM_CALL data structure. */
		struct vbg_ioctl_hgcm_call {
		/** The header. */
		struct vbg_ioctl_hdr hdr;
		/** Input: The id of the caller. */
		__u32 client_id;
		/** Input: Function number. */
		__u32 function;
		/**
		* Input: How long to wait (milliseconds) for completion before
		* cancelling the call. Set to -1 to wait indefinitely.
		*/
		__u32 timeout_ms;
		/** Interruptable flag, ignored for userspace calls. */
		__u8 interruptible;
		/** Explicit padding, MBZ. */
		__u8 reserved;
		/**
		* Input: How many parameters following this structure.
		*
		* The parameters are either HGCMFunctionParameter64 or 32,
		* depending on whether we're receiving a 64-bit or 32-bit request.
		*
		* The current maximum is 61 parameters (given a 1KB max request size,
		* and a 64-bit parameter size of 16 bytes).
		*/
		__u16 parm_count;
		/*
		* Parameters follow in form:
		* struct hgcm_function_parameter<32\|64> parms[parm_count]
		*/
		};
		VMMDEV_ASSERT_SIZE(vbg_ioctl_hgcm_call, 24 + 16);

		#define VBG_IOCTL_HGCM_CALL_32(s) _IOC(_IOC_READ \| _IOC_WRITE, 'V', 6, s)
		#define VBG_IOCTL_HGCM_CALL_64(s) _IOC(_IOC_READ \| _IOC_WRITE, 'V', 7, s)
		#if __BITS_PER_LONG == 64
		#define VBG_IOCTL_HGCM_CALL(s) VBG_IOCTL_HGCM_CALL_64(s)
		#else
		#define VBG_IOCTL_HGCM_CALL(s) VBG_IOCTL_HGCM_CALL_32(s)
		#endif


		/** VBG_IOCTL_LOG data structure. */
		struct vbg_ioctl_log {
		/** The header. */
		struct vbg_ioctl_hdr hdr;
		union {
		struct {
		/**
		* The log message, this may be zero terminated. If it
		* is not zero terminated then the length is determined
		* from the input size.
		*/
		char msg[1];
		} in;
		} u;
		};

		#define VBG_IOCTL_LOG(s) _IOC(_IOC_READ \| _IOC_WRITE, 'V', 9, s)


		/** VBG_IOCTL_WAIT_FOR_EVENTS data structure. */
		struct vbg_ioctl_wait_for_events {
		/** The header. */
		struct vbg_ioctl_hdr hdr;
		union {
		struct {
		/** Timeout in milliseconds. */
		__u32 timeout_ms;
		/** Events to wait for. */
		__u32 events;
		} in;
		struct {
		/** Events that occurred. */
		__u32 events;
		} out;
		} u;
		};
		VMMDEV_ASSERT_SIZE(vbg_ioctl_wait_for_events, 24 + 8);

		#define VBG_IOCTL_WAIT_FOR_EVENTS \
		_IOWR('V', 10, struct vbg_ioctl_wait_for_events)


		/*
		* IOCTL to VBoxGuest to interrupt (cancel) any pending
		* VBG_IOCTL_WAIT_FOR_EVENTS and return.
		*
		* Handled inside the vboxguest driver and not seen by the host at all.
		* After calling this, VBG_IOCTL_WAIT_FOR_EVENTS should no longer be called in
		* the same session. Any VBOXGUEST_IOCTL_WAITEVENT calls in the same session
		* done after calling this will directly exit with -EINTR.
		*/
		#define VBG_IOCTL_INTERRUPT_ALL_WAIT_FOR_EVENTS \
		_IOWR('V', 11, struct vbg_ioctl_hdr)


		/** VBG_IOCTL_CHANGE_FILTER_MASK data structure. */
		struct vbg_ioctl_change_filter {
		/** The header. */
		struct vbg_ioctl_hdr hdr;
		union {
		struct {
		/** Flags to set. */
		__u32 or_mask;
		/** Flags to remove. */
		__u32 not_mask;
		} in;
		} u;
		};
		VMMDEV_ASSERT_SIZE(vbg_ioctl_change_filter, 24 + 8);

		/* IOCTL to VBoxGuest to control the event filter mask. */
		#define VBG_IOCTL_CHANGE_FILTER_MASK \
		_IOWR('V', 12, struct vbg_ioctl_change_filter)


		/** VBG_IOCTL_CHANGE_GUEST_CAPABILITIES data structure. */
		struct vbg_ioctl_set_guest_caps {
		/** The header. */
		struct vbg_ioctl_hdr hdr;
		union {
		struct {
		/** Capabilities to set (VMMDEV_GUEST_SUPPORTS_XXX). */
		__u32 or_mask;
		/** Capabilities to drop (VMMDEV_GUEST_SUPPORTS_XXX). */
		__u32 not_mask;
		} in;
		struct {
		/** Capabilities held by the session after the call. */
		__u32 session_caps;
		/** Capabilities for all the sessions after the call. */
		__u32 global_caps;
		} out;
		} u;
		};
		VMMDEV_ASSERT_SIZE(vbg_ioctl_set_guest_caps, 24 + 8);

		#define VBG_IOCTL_CHANGE_GUEST_CAPABILITIES \
		_IOWR('V', 14, struct vbg_ioctl_set_guest_caps)


		/** VBG_IOCTL_CHECK_BALLOON data structure. */
		struct vbg_ioctl_check_balloon {
		/** The header. */
		struct vbg_ioctl_hdr hdr;
		union {
		struct {
		/** The size of the balloon in chunks of 1MB. */
		__u32 balloon_chunks;
		/**
		* false = handled in R0, no further action required.
		* true = allocate balloon memory in R3.
		*/
		__u8 handle_in_r3;
		/** Explicit padding, MBZ. */
		__u8 padding[3];
		} out;
		} u;
		};
		VMMDEV_ASSERT_SIZE(vbg_ioctl_check_balloon, 24 + 8);

		/*
		* IOCTL to check memory ballooning.
		*
		* The guest kernel module will ask the host for the current size of the
		* balloon and adjust the size. Or it will set handle_in_r3 = true and R3 is
		* responsible for allocating memory and calling VBG_IOCTL_CHANGE_BALLOON.
		*/
		#define VBG_IOCTL_CHECK_BALLOON \
		_IOWR('V', 17, struct vbg_ioctl_check_balloon)


		/** VBG_IOCTL_WRITE_CORE_DUMP data structure. */
		struct vbg_ioctl_write_coredump {
		struct vbg_ioctl_hdr hdr;
		union {
		struct {
		__u32 flags; /** Flags (reserved, MBZ). */
		} in;
		} u;
		};
		VMMDEV_ASSERT_SIZE(vbg_ioctl_write_coredump, 24 + 4);

		#define VBG_IOCTL_WRITE_CORE_DUMP \
		_IOWR('V', 19, struct vbg_ioctl_write_coredump)

		#endif