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vboxguest.h
/* 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
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