/* SPDX-License-Identifier: (GPL-2.0 OR CDDL-1.0) */
/*
* Virtual Device for Guest <-> VMM/Host communication interface
*
* Copyright (C) 2006-2016 Oracle Corporation
*/
#ifndef __VBOX_VMMDEV_H__
#define __VBOX_VMMDEV_H__
#include <asm/bitsperlong.h>
#include <linux/sizes.h>
#include <linux/types.h>
#include <linux/vbox_vmmdev_types.h>
/* Port for generic request interface (relative offset). */
#define VMMDEV_PORT_OFF_REQUEST 0
/** Layout of VMMDEV RAM region that contains information for guest. */
struct vmmdev_memory {
/** The size of this structure. */
u32 size;
/** The structure version. (VMMDEV_MEMORY_VERSION) */
u32 version;
union {
struct {
/** Flag telling that VMMDev has events pending. */
u8 have_events;
/** Explicit padding, MBZ. */
u8 padding[3];
} V1_04;
struct {
/** Pending events flags, set by host. */
u32 host_events;
/** Mask of events the guest wants, set by guest. */
u32 guest_event_mask;
} V1_03;
} V;
/* struct vbva_memory, not used */
};
VMMDEV_ASSERT_SIZE(vmmdev_memory, 8 + 8);
/** Version of vmmdev_memory structure (vmmdev_memory::version). */
#define VMMDEV_MEMORY_VERSION (1)
/* Host mouse capabilities has been changed. */
#define VMMDEV_EVENT_MOUSE_CAPABILITIES_CHANGED BIT(0)
/* HGCM event. */
#define VMMDEV_EVENT_HGCM BIT(1)
/* A display change request has been issued. */
#define VMMDEV_EVENT_DISPLAY_CHANGE_REQUEST BIT(2)
/* Credentials are available for judgement. */
#define VMMDEV_EVENT_JUDGE_CREDENTIALS BIT(3)
/* The guest has been restored. */
#define VMMDEV_EVENT_RESTORED BIT(4)
/* Seamless mode state changed. */
#define VMMDEV_EVENT_SEAMLESS_MODE_CHANGE_REQUEST BIT(5)
/* Memory balloon size changed. */
#define VMMDEV_EVENT_BALLOON_CHANGE_REQUEST BIT(6)
/* Statistics interval changed. */
#define VMMDEV_EVENT_STATISTICS_INTERVAL_CHANGE_REQUEST BIT(7)
/* VRDP status changed. */
#define VMMDEV_EVENT_VRDP BIT(8)
/* New mouse position data available. */
#define VMMDEV_EVENT_MOUSE_POSITION_CHANGED BIT(9)
/* CPU hotplug event occurred. */
#define VMMDEV_EVENT_CPU_HOTPLUG BIT(10)
/* The mask of valid events, for sanity checking. */
#define VMMDEV_EVENT_VALID_EVENT_MASK 0x000007ffU
/*
* Additions are allowed to work only if additions_major == vmmdev_current &&
* additions_minor <= vmmdev_current. Additions version is reported to host
* (VMMDev) by VMMDEVREQ_REPORT_GUEST_INFO.
*/
#define VMMDEV_VERSION 0x00010004
#define VMMDEV_VERSION_MAJOR (VMMDEV_VERSION >> 16)
#define VMMDEV_VERSION_MINOR (VMMDEV_VERSION & 0xffff)
/* Maximum request packet size. */
#define VMMDEV_MAX_VMMDEVREQ_SIZE 1048576
/* Version of vmmdev_request_header structure. */
#define VMMDEV_REQUEST_HEADER_VERSION 0x10001
/** struct vmmdev_request_header - Generic VMMDev request header. */
struct vmmdev_request_header {
/** IN: Size of the structure in bytes (including body). */
u32 size;
/** IN: Version of the structure. */
u32 version;
/** IN: Type of the request. */
enum vmmdev_request_type request_type;
/** OUT: Return code. */
s32 rc;
/** Reserved field no.1. MBZ. */
u32 reserved1;
/** IN: Requestor information (VMMDEV_REQUESTOR_*) */
u32 requestor;
};
VMMDEV_ASSERT_SIZE(vmmdev_request_header, 24);
/**
* struct vmmdev_mouse_status - Mouse status request structure.
*
* Used by VMMDEVREQ_GET_MOUSE_STATUS and VMMDEVREQ_SET_MOUSE_STATUS.
*/
struct vmmdev_mouse_status {
/** header */
struct vmmdev_request_header header;
/** Mouse feature mask. See VMMDEV_MOUSE_*. */
u32 mouse_features;
/** Mouse x position. */
s32 pointer_pos_x;
/** Mouse y position. */
s32 pointer_pos_y;
};
VMMDEV_ASSERT_SIZE(vmmdev_mouse_status, 24 + 12);
/* The guest can (== wants to) handle absolute coordinates. */
#define VMMDEV_MOUSE_GUEST_CAN_ABSOLUTE BIT(0)
/*
* The host can (== wants to) send absolute coordinates.
* (Input not captured.)
*/
#define VMMDEV_MOUSE_HOST_WANTS_ABSOLUTE BIT(1)
/*
* The guest can *NOT* switch to software cursor and therefore depends on the
* host cursor.
*
* When guest additions are installed and the host has promised to display the
* cursor itself, the guest installs a hardware mouse driver. Don't ask the
* guest to switch to a software cursor then.
*/
#define VMMDEV_MOUSE_GUEST_NEEDS_HOST_CURSOR BIT(2)
/* The host does NOT provide support for drawing the cursor itself. */
#define VMMDEV_MOUSE_HOST_CANNOT_HWPOINTER BIT(3)
/* The guest can read VMMDev events to find out about pointer movement */
#define VMMDEV_MOUSE_NEW_PROTOCOL BIT(4)
/*
* If the guest changes the status of the VMMDEV_MOUSE_GUEST_NEEDS_HOST_CURSOR
* bit, the host will honour this.
*/
#define VMMDEV_MOUSE_HOST_RECHECKS_NEEDS_HOST_CURSOR BIT(5)
/*
* The host supplies an absolute pointing device. The Guest Additions may
* wish to use this to decide whether to install their own driver.
*/
#define VMMDEV_MOUSE_HOST_HAS_ABS_DEV BIT(6)
/* The minimum value our pointing device can return. */
#define VMMDEV_MOUSE_RANGE_MIN 0
/* The maximum value our pointing device can return. */
#define VMMDEV_MOUSE_RANGE_MAX 0xFFFF
/**
* struct vmmdev_host_version - VirtualBox host version request structure.
*
* VBG uses this to detect the precense of new features in the interface.
*/
struct vmmdev_host_version {
/** Header. */
struct vmmdev_request_header header;
/** Major version. */
u16 major;
/** Minor version. */
u16 minor;
/** Build number. */
u32 build;
/** SVN revision. */
u32 revision;
/** Feature mask. */
u32 features;
};
VMMDEV_ASSERT_SIZE(vmmdev_host_version, 24 + 16);
/* Physical page lists are supported by HGCM. */
#define VMMDEV_HVF_HGCM_PHYS_PAGE_LIST BIT(0)
/**
* struct vmmdev_mask - Structure to set / clear bits in a mask used for
* VMMDEVREQ_SET_GUEST_CAPABILITIES and VMMDEVREQ_CTL_GUEST_FILTER_MASK.
*/
struct vmmdev_mask {
/** Header. */
struct vmmdev_request_header header;
/** Mask of bits to be set. */
u32 or_mask;
/** Mask of bits to be cleared. */
u32 not_mask;
};
VMMDEV_ASSERT_SIZE(vmmdev_mask, 24 + 8);
/* The guest supports seamless display rendering. */
#define VMMDEV_GUEST_SUPPORTS_SEAMLESS BIT(0)
/* The guest supports mapping guest to host windows. */
#define VMMDEV_GUEST_SUPPORTS_GUEST_HOST_WINDOW_MAPPING BIT(1)
/*
* The guest graphical additions are active.
* Used for fast activation and deactivation of certain graphical operations
* (e.g. resizing & seamless). The legacy VMMDEVREQ_REPORT_GUEST_CAPABILITIES
* request sets this automatically, but VMMDEVREQ_SET_GUEST_CAPABILITIES does
* not.
*/
#define VMMDEV_GUEST_SUPPORTS_GRAPHICS BIT(2)
/* The mask of valid capabilities, for sanity checking. */
#define VMMDEV_GUEST_CAPABILITIES_MASK 0x00000007U
/** struct vmmdev_hypervisorinfo - Hypervisor info structure. */
struct vmmdev_hypervisorinfo {
/** Header. */
struct vmmdev_request_header header;
/**
* Guest virtual address of proposed hypervisor start.
* Not used by VMMDEVREQ_GET_HYPERVISOR_INFO.
*/
u32 hypervisor_start;
/** Hypervisor size in bytes. */
u32 hypervisor_size;
};
VMMDEV_ASSERT_SIZE(vmmdev_hypervisorinfo, 24 + 8);
/** struct vmmdev_events - Pending events structure. */
struct vmmdev_events {
/** Header. */
struct vmmdev_request_header header;
/** OUT: Pending event mask. */
u32 events;
};
VMMDEV_ASSERT_SIZE(vmmdev_events, 24 + 4);
#define VMMDEV_OSTYPE_LINUX26 0x53000
#define VMMDEV_OSTYPE_X64 BIT(8)
/** struct vmmdev_guestinfo - Guest information report. */
struct vmmdev_guest_info {
/** Header. */
struct vmmdev_request_header header;
/**
* The VMMDev interface version expected by additions.
* *Deprecated*, do not use anymore! Will be removed.
*/
u32 interface_version;
/** Guest OS type. */
u32 os_type;
};
VMMDEV_ASSERT_SIZE(vmmdev_guest_info, 24 + 8);
#define VMMDEV_GUEST_INFO2_ADDITIONS_FEATURES_REQUESTOR_INFO BIT(0)
/** struct vmmdev_guestinfo2 - Guest information report, version 2. */
struct vmmdev_guest_info2 {
/** Header. */
struct vmmdev_request_header header;
/** Major version. */
u16 additions_major;
/** Minor version. */
u16 additions_minor;
/** Build number. */
u32 additions_build;
/** SVN revision. */
u32 additions_revision;
/** Feature mask. */
u32 additions_features;
/**
* The intentional meaning of this field was:
* Some additional information, for example 'Beta 1' or something like
* that.
*
* The way it was implemented was implemented: VBG_VERSION_STRING.
*
* This means the first three members are duplicated in this field (if
* the guest build config is sane). So, the user must check this and
* chop it off before usage. There is, because of the Main code's blind
* trust in the field's content, no way back.
*/
char name[128];
};
VMMDEV_ASSERT_SIZE(vmmdev_guest_info2, 24 + 144);
enum vmmdev_guest_facility_type {
VBOXGUEST_FACILITY_TYPE_UNKNOWN = 0,
VBOXGUEST_FACILITY_TYPE_VBOXGUEST_DRIVER = 20,
/* VBoxGINA / VBoxCredProv / pam_vbox. */
VBOXGUEST_FACILITY_TYPE_AUTO_LOGON = 90,
VBOXGUEST_FACILITY_TYPE_VBOX_SERVICE = 100,
/* VBoxTray (Windows), VBoxClient (Linux, Unix). */
VBOXGUEST_FACILITY_TYPE_VBOX_TRAY_CLIENT = 101,
VBOXGUEST_FACILITY_TYPE_SEAMLESS = 1000,
VBOXGUEST_FACILITY_TYPE_GRAPHICS = 1100,
VBOXGUEST_FACILITY_TYPE_ALL = 0x7ffffffe,
/* Ensure the enum is a 32 bit data-type */
VBOXGUEST_FACILITY_TYPE_SIZEHACK = 0x7fffffff
};
enum vmmdev_guest_facility_status {
VBOXGUEST_FACILITY_STATUS_INACTIVE = 0,
VBOXGUEST_FACILITY_STATUS_PAUSED = 1,
VBOXGUEST_FACILITY_STATUS_PRE_INIT = 20,
VBOXGUEST_FACILITY_STATUS_INIT = 30,
VBOXGUEST_FACILITY_STATUS_ACTIVE = 50,
VBOXGUEST_FACILITY_STATUS_TERMINATING = 100,
VBOXGUEST_FACILITY_STATUS_TERMINATED = 101,
VBOXGUEST_FACILITY_STATUS_FAILED = 800,
VBOXGUEST_FACILITY_STATUS_UNKNOWN = 999,
/* Ensure the enum is a 32 bit data-type */
VBOXGUEST_FACILITY_STATUS_SIZEHACK = 0x7fffffff
};
/** struct vmmdev_guest_status - Guest Additions status structure. */
struct vmmdev_guest_status {
/** Header. */
struct vmmdev_request_header header;
/** Facility the status is indicated for. */
enum vmmdev_guest_facility_type facility;
/** Current guest status. */
enum vmmdev_guest_facility_status status;
/** Flags, not used at the moment. */
u32 flags;
};
VMMDEV_ASSERT_SIZE(vmmdev_guest_status, 24 + 12);
#define VMMDEV_MEMORY_BALLOON_CHUNK_SIZE (1048576)
#define VMMDEV_MEMORY_BALLOON_CHUNK_PAGES (1048576 / 4096)
/** struct vmmdev_memballoon_info - Memory-balloon info structure. */
struct vmmdev_memballoon_info {
/** Header. */
struct vmmdev_request_header header;
/** Balloon size in megabytes. */
u32 balloon_chunks;
/** Guest ram size in megabytes. */
u32 phys_mem_chunks;
/**
* Setting this to VMMDEV_EVENT_BALLOON_CHANGE_REQUEST indicates that
* the request is a response to that event.
* (Don't confuse this with VMMDEVREQ_ACKNOWLEDGE_EVENTS.)
*/
u32 event_ack;
};
VMMDEV_ASSERT_SIZE(vmmdev_memballoon_info, 24 + 12);
/** struct vmmdev_memballoon_change - Change the size of the balloon. */
struct vmmdev_memballoon_change {
/** Header. */
struct vmmdev_request_header header;
/** The number of pages in the array. */
u32 pages;
/** true = inflate, false = deflate. */
u32 inflate;
/** Physical address (u64) of each page. */
u64 phys_page[VMMDEV_MEMORY_BALLOON_CHUNK_PAGES];
};
/** struct vmmdev_write_core_dump - Write Core Dump request data. */
struct vmmdev_write_core_dump {
/** Header. */
struct vmmdev_request_header header;
/** Flags (reserved, MBZ). */
u32 flags;
};
VMMDEV_ASSERT_SIZE(vmmdev_write_core_dump, 24 + 4);
/** struct vmmdev_heartbeat - Heart beat check state structure. */
struct vmmdev_heartbeat {
/** Header. */
struct vmmdev_request_header header;
/** OUT: Guest heartbeat interval in nanosec. */
u64 interval_ns;
/** Heartbeat check flag. */
u8 enabled;
/** Explicit padding, MBZ. */
u8 padding[3];
} __packed;
VMMDEV_ASSERT_SIZE(vmmdev_heartbeat, 24 + 12);
#define VMMDEV_HGCM_REQ_DONE BIT(0)
#define VMMDEV_HGCM_REQ_CANCELLED BIT(1)
/** struct vmmdev_hgcmreq_header - vmmdev HGCM requests header. */
struct vmmdev_hgcmreq_header {
/** Request header. */
struct vmmdev_request_header header;
/** HGCM flags. */
u32 flags;
/** Result code. */
s32 result;
};
VMMDEV_ASSERT_SIZE(vmmdev_hgcmreq_header, 24 + 8);
/** struct vmmdev_hgcm_connect - HGCM connect request structure. */
struct vmmdev_hgcm_connect {
/** HGCM request header. */
struct vmmdev_hgcmreq_header header;
/** IN: Description of service to connect to. */
struct vmmdev_hgcm_service_location loc;
/** OUT: Client identifier assigned by local instance of HGCM. */
u32 client_id;
};
VMMDEV_ASSERT_SIZE(vmmdev_hgcm_connect, 32 + 132 + 4);
/** struct vmmdev_hgcm_disconnect - HGCM disconnect request structure. */
struct vmmdev_hgcm_disconnect {
/** HGCM request header. */
struct vmmdev_hgcmreq_header header;
/** IN: Client identifier. */
u32 client_id;
};
VMMDEV_ASSERT_SIZE(vmmdev_hgcm_disconnect, 32 + 4);
#define VMMDEV_HGCM_MAX_PARMS 32
/** struct vmmdev_hgcm_call - HGCM call request structure. */
struct vmmdev_hgcm_call {
/* request header */
struct vmmdev_hgcmreq_header header;
/** IN: Client identifier. */
u32 client_id;
/** IN: Service function number. */
u32 function;
/** IN: Number of parameters. */
u32 parm_count;
/** Parameters follow in form: HGCMFunctionParameter32|64 parms[X]; */
};
VMMDEV_ASSERT_SIZE(vmmdev_hgcm_call, 32 + 12);
/**
* struct vmmdev_hgcm_cancel2 - HGCM cancel request structure, version 2.
*
* After the request header.rc will be:
*
* VINF_SUCCESS when cancelled.
* VERR_NOT_FOUND if the specified request cannot be found.
* VERR_INVALID_PARAMETER if the address is invalid valid.
*/
struct vmmdev_hgcm_cancel2 {
/** Header. */
struct vmmdev_request_header header;
/** The physical address of the request to cancel. */
u32 phys_req_to_cancel;
};
VMMDEV_ASSERT_SIZE(vmmdev_hgcm_cancel2, 24 + 4);
#endif
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