v4.19.13 snapshot.
diff --git a/drivers/virt/vboxguest/vmmdev.h b/drivers/virt/vboxguest/vmmdev.h
new file mode 100644
index 0000000..5e2ae97
--- /dev/null
+++ b/drivers/virt/vboxguest/vmmdev.h
@@ -0,0 +1,449 @@
+/* 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;
+ /** Reserved field no.2. MBZ. */
+ u32 reserved2;
+};
+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)
+
+/** 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);
+
+/** 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, currently unused. */
+ 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