355 lines
9.1 KiB
C
355 lines
9.1 KiB
C
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/* SPDX-License-Identifier: ((GPL-2.0 WITH Linux-syscall-note) OR CDDL-1.0) */
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/*
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* VBoxGuest - VirtualBox Guest Additions Driver Interface.
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*
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* Copyright (C) 2006-2016 Oracle Corporation
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*/
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#ifndef __UAPI_VBOXGUEST_H__
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#define __UAPI_VBOXGUEST_H__
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#include <asm/bitsperlong.h>
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#include <linux/ioctl.h>
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#include <linux/vbox_err.h>
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#include <linux/vbox_vmmdev_types.h>
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/* Version of vbg_ioctl_hdr structure. */
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#define VBG_IOCTL_HDR_VERSION 0x10001
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/* Default request type. Use this for non-VMMDev requests. */
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#define VBG_IOCTL_HDR_TYPE_DEFAULT 0
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/**
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* Common ioctl header.
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*
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* This is a mirror of vmmdev_request_header to prevent duplicating data and
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* needing to verify things multiple times.
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*/
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struct vbg_ioctl_hdr {
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/** IN: The request input size, and output size if size_out is zero. */
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__u32 size_in;
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/** IN: Structure version (VBG_IOCTL_HDR_VERSION) */
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__u32 version;
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/** IN: The VMMDev request type or VBG_IOCTL_HDR_TYPE_DEFAULT. */
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__u32 type;
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/**
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* OUT: The VBox status code of the operation, out direction only.
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* This is a VINF_ or VERR_ value as defined in vbox_err.h.
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*/
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__s32 rc;
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/** IN: Output size. Set to zero to use size_in as output size. */
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__u32 size_out;
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/** Reserved, MBZ. */
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__u32 reserved;
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};
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VMMDEV_ASSERT_SIZE(vbg_ioctl_hdr, 24);
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/*
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* The VBoxGuest I/O control version.
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*
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* As usual, the high word contains the major version and changes to it
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* signifies incompatible changes.
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*
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* The lower word is the minor version number, it is increased when new
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* functions are added or existing changed in a backwards compatible manner.
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*/
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#define VBG_IOC_VERSION 0x00010000u
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/**
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* VBG_IOCTL_DRIVER_VERSION_INFO data structure
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*
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* Note VBG_IOCTL_DRIVER_VERSION_INFO may switch the session to a backwards
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* compatible interface version if uClientVersion indicates older client code.
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*/
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struct vbg_ioctl_driver_version_info {
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/** The header. */
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struct vbg_ioctl_hdr hdr;
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union {
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struct {
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/** Requested interface version (VBG_IOC_VERSION). */
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__u32 req_version;
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/**
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* Minimum interface version number (typically the
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* major version part of VBG_IOC_VERSION).
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*/
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__u32 min_version;
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/** Reserved, MBZ. */
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__u32 reserved1;
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/** Reserved, MBZ. */
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__u32 reserved2;
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} in;
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struct {
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/** Version for this session (typ. VBG_IOC_VERSION). */
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__u32 session_version;
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/** Version of the IDC interface (VBG_IOC_VERSION). */
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__u32 driver_version;
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/** The SVN revision of the driver, or 0. */
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__u32 driver_revision;
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/** Reserved \#1 (zero until defined). */
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__u32 reserved1;
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/** Reserved \#2 (zero until defined). */
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__u32 reserved2;
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} out;
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} u;
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};
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VMMDEV_ASSERT_SIZE(vbg_ioctl_driver_version_info, 24 + 20);
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#define VBG_IOCTL_DRIVER_VERSION_INFO \
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_IOWR('V', 0, struct vbg_ioctl_driver_version_info)
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/* IOCTL to perform a VMM Device request less than 1KB in size. */
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#define VBG_IOCTL_VMMDEV_REQUEST(s) _IOC(_IOC_READ | _IOC_WRITE, 'V', 2, s)
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/* IOCTL to perform a VMM Device request larger then 1KB. */
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#define VBG_IOCTL_VMMDEV_REQUEST_BIG _IO('V', 3)
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/** VBG_IOCTL_HGCM_CONNECT data structure. */
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struct vbg_ioctl_hgcm_connect {
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struct vbg_ioctl_hdr hdr;
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union {
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struct {
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struct vmmdev_hgcm_service_location loc;
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} in;
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struct {
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__u32 client_id;
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} out;
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} u;
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};
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VMMDEV_ASSERT_SIZE(vbg_ioctl_hgcm_connect, 24 + 132);
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#define VBG_IOCTL_HGCM_CONNECT \
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_IOWR('V', 4, struct vbg_ioctl_hgcm_connect)
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/** VBG_IOCTL_HGCM_DISCONNECT data structure. */
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struct vbg_ioctl_hgcm_disconnect {
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struct vbg_ioctl_hdr hdr;
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union {
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struct {
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__u32 client_id;
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} in;
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} u;
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};
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VMMDEV_ASSERT_SIZE(vbg_ioctl_hgcm_disconnect, 24 + 4);
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#define VBG_IOCTL_HGCM_DISCONNECT \
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_IOWR('V', 5, struct vbg_ioctl_hgcm_disconnect)
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/** VBG_IOCTL_HGCM_CALL data structure. */
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struct vbg_ioctl_hgcm_call {
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/** The header. */
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struct vbg_ioctl_hdr hdr;
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/** Input: The id of the caller. */
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__u32 client_id;
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/** Input: Function number. */
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__u32 function;
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/**
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* Input: How long to wait (milliseconds) for completion before
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* cancelling the call. Set to -1 to wait indefinitely.
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*/
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__u32 timeout_ms;
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/** Interruptable flag, ignored for userspace calls. */
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__u8 interruptible;
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/** Explicit padding, MBZ. */
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__u8 reserved;
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/**
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* Input: How many parameters following this structure.
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*
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* The parameters are either HGCMFunctionParameter64 or 32,
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* depending on whether we're receiving a 64-bit or 32-bit request.
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*
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* The current maximum is 61 parameters (given a 1KB max request size,
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* and a 64-bit parameter size of 16 bytes).
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*/
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__u16 parm_count;
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/*
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* Parameters follow in form:
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* struct hgcm_function_parameter<32|64> parms[parm_count]
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*/
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};
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VMMDEV_ASSERT_SIZE(vbg_ioctl_hgcm_call, 24 + 16);
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#define VBG_IOCTL_HGCM_CALL_32(s) _IOC(_IOC_READ | _IOC_WRITE, 'V', 6, s)
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#define VBG_IOCTL_HGCM_CALL_64(s) _IOC(_IOC_READ | _IOC_WRITE, 'V', 7, s)
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#if __BITS_PER_LONG == 64
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#define VBG_IOCTL_HGCM_CALL(s) VBG_IOCTL_HGCM_CALL_64(s)
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#else
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#define VBG_IOCTL_HGCM_CALL(s) VBG_IOCTL_HGCM_CALL_32(s)
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#endif
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/** VBG_IOCTL_LOG data structure. */
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struct vbg_ioctl_log {
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/** The header. */
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struct vbg_ioctl_hdr hdr;
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union {
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struct {
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/**
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* The log message, this may be zero terminated. If it
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* is not zero terminated then the length is determined
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* from the input size.
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*/
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char msg[1];
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} in;
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} u;
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};
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#define VBG_IOCTL_LOG(s) _IO('V', 9)
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/** VBG_IOCTL_WAIT_FOR_EVENTS data structure. */
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struct vbg_ioctl_wait_for_events {
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/** The header. */
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struct vbg_ioctl_hdr hdr;
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union {
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struct {
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/** Timeout in milliseconds. */
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__u32 timeout_ms;
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/** Events to wait for. */
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__u32 events;
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} in;
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struct {
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/** Events that occurred. */
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__u32 events;
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} out;
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} u;
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};
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VMMDEV_ASSERT_SIZE(vbg_ioctl_wait_for_events, 24 + 8);
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#define VBG_IOCTL_WAIT_FOR_EVENTS \
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_IOWR('V', 10, struct vbg_ioctl_wait_for_events)
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/*
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* IOCTL to VBoxGuest to interrupt (cancel) any pending
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* VBG_IOCTL_WAIT_FOR_EVENTS and return.
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*
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* Handled inside the vboxguest driver and not seen by the host at all.
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* After calling this, VBG_IOCTL_WAIT_FOR_EVENTS should no longer be called in
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* the same session. Any VBOXGUEST_IOCTL_WAITEVENT calls in the same session
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* done after calling this will directly exit with -EINTR.
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*/
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#define VBG_IOCTL_INTERRUPT_ALL_WAIT_FOR_EVENTS \
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_IOWR('V', 11, struct vbg_ioctl_hdr)
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/** VBG_IOCTL_CHANGE_FILTER_MASK data structure. */
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struct vbg_ioctl_change_filter {
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/** The header. */
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struct vbg_ioctl_hdr hdr;
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union {
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struct {
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/** Flags to set. */
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__u32 or_mask;
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/** Flags to remove. */
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__u32 not_mask;
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} in;
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} u;
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};
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VMMDEV_ASSERT_SIZE(vbg_ioctl_change_filter, 24 + 8);
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/* IOCTL to VBoxGuest to control the event filter mask. */
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#define VBG_IOCTL_CHANGE_FILTER_MASK \
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_IOWR('V', 12, struct vbg_ioctl_change_filter)
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/** VBG_IOCTL_ACQUIRE_GUEST_CAPABILITIES data structure. */
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struct vbg_ioctl_acquire_guest_caps {
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/** The header. */
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struct vbg_ioctl_hdr hdr;
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union {
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struct {
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/** Flags (VBGL_IOC_AGC_FLAGS_XXX). */
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__u32 flags;
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/** Capabilities to set (VMMDEV_GUEST_SUPPORTS_XXX). */
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__u32 or_mask;
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/** Capabilities to drop (VMMDEV_GUEST_SUPPORTS_XXX). */
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__u32 not_mask;
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} in;
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} u;
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};
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VMMDEV_ASSERT_SIZE(vbg_ioctl_acquire_guest_caps, 24 + 12);
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#define VBGL_IOC_AGC_FLAGS_CONFIG_ACQUIRE_MODE 0x00000001
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#define VBGL_IOC_AGC_FLAGS_VALID_MASK 0x00000001
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#define VBG_IOCTL_ACQUIRE_GUEST_CAPABILITIES \
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_IOWR('V', 13, struct vbg_ioctl_acquire_guest_caps)
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/** VBG_IOCTL_CHANGE_GUEST_CAPABILITIES data structure. */
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struct vbg_ioctl_set_guest_caps {
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/** The header. */
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struct vbg_ioctl_hdr hdr;
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union {
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struct {
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/** Capabilities to set (VMMDEV_GUEST_SUPPORTS_XXX). */
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__u32 or_mask;
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/** Capabilities to drop (VMMDEV_GUEST_SUPPORTS_XXX). */
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__u32 not_mask;
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} in;
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struct {
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/** Capabilities held by the session after the call. */
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__u32 session_caps;
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/** Capabilities for all the sessions after the call. */
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__u32 global_caps;
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} out;
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} u;
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};
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VMMDEV_ASSERT_SIZE(vbg_ioctl_set_guest_caps, 24 + 8);
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#define VBG_IOCTL_CHANGE_GUEST_CAPABILITIES \
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_IOWR('V', 14, struct vbg_ioctl_set_guest_caps)
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/** VBG_IOCTL_CHECK_BALLOON data structure. */
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struct vbg_ioctl_check_balloon {
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/** The header. */
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struct vbg_ioctl_hdr hdr;
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union {
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struct {
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/** The size of the balloon in chunks of 1MB. */
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__u32 balloon_chunks;
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/**
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* false = handled in R0, no further action required.
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* true = allocate balloon memory in R3.
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*/
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__u8 handle_in_r3;
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/** Explicit padding, MBZ. */
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__u8 padding[3];
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} out;
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} u;
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};
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VMMDEV_ASSERT_SIZE(vbg_ioctl_check_balloon, 24 + 8);
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/*
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* IOCTL to check memory ballooning.
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*
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* The guest kernel module will ask the host for the current size of the
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* balloon and adjust the size. Or it will set handle_in_r3 = true and R3 is
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* responsible for allocating memory and calling VBG_IOCTL_CHANGE_BALLOON.
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*/
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#define VBG_IOCTL_CHECK_BALLOON \
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_IOWR('V', 17, struct vbg_ioctl_check_balloon)
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/** VBG_IOCTL_WRITE_CORE_DUMP data structure. */
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struct vbg_ioctl_write_coredump {
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struct vbg_ioctl_hdr hdr;
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union {
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struct {
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__u32 flags; /** Flags (reserved, MBZ). */
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} in;
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} u;
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};
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VMMDEV_ASSERT_SIZE(vbg_ioctl_write_coredump, 24 + 4);
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#define VBG_IOCTL_WRITE_CORE_DUMP \
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_IOWR('V', 19, struct vbg_ioctl_write_coredump)
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#endif
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