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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