include/uapi/linux/vbox_vmmdev_types.h

Source file repositories/reference/linux-study-clean/include/uapi/linux/vbox_vmmdev_types.h

File Facts

System
Linux kernel
Corpus path
include/uapi/linux/vbox_vmmdev_types.h
Extension
.h
Size
11706 bytes
Lines
293
Domain
Core OS
Bucket
Core Kernel Interface
Inferred role
Core OS: implementation source
Status
source implementation candidate

Why This File Exists

Core operating-system implementation surface: boot, tasks, memory, VFS, syscall-facing interfaces, synchronization, credentials, and isolation.

Dependency Surface

Detected Declarations

Annotated Snippet

struct vmmdev_hgcm_service_location_localhost {
	/** Service name */
	char service_name[128];
};
VMMDEV_ASSERT_SIZE(vmmdev_hgcm_service_location_localhost, 128);

/** HGCM service location. */
struct vmmdev_hgcm_service_location {
	/** Type of the location. */
	enum vmmdev_hgcm_service_location_type type;

	union {
		struct vmmdev_hgcm_service_location_localhost localhost;
	} u;
};
VMMDEV_ASSERT_SIZE(vmmdev_hgcm_service_location, 128 + 4);

/** HGCM function parameter type. */
enum vmmdev_hgcm_function_parameter_type {
	VMMDEV_HGCM_PARM_TYPE_INVALID            = 0,
	VMMDEV_HGCM_PARM_TYPE_32BIT              = 1,
	VMMDEV_HGCM_PARM_TYPE_64BIT              = 2,
	/** Deprecated Doesn't work, use PAGELIST. */
	VMMDEV_HGCM_PARM_TYPE_PHYSADDR           = 3,
	/** In and Out, user-memory */
	VMMDEV_HGCM_PARM_TYPE_LINADDR            = 4,
	/** In, user-memory  (read;  host<-guest) */
	VMMDEV_HGCM_PARM_TYPE_LINADDR_IN         = 5,
	/** Out, user-memory (write; host->guest) */
	VMMDEV_HGCM_PARM_TYPE_LINADDR_OUT        = 6,
	/** In and Out, kernel-memory */
	VMMDEV_HGCM_PARM_TYPE_LINADDR_KERNEL     = 7,
	/** In, kernel-memory  (read;  host<-guest) */
	VMMDEV_HGCM_PARM_TYPE_LINADDR_KERNEL_IN  = 8,
	/** Out, kernel-memory (write; host->guest) */
	VMMDEV_HGCM_PARM_TYPE_LINADDR_KERNEL_OUT = 9,
	/** Physical addresses of locked pages for a buffer. */
	VMMDEV_HGCM_PARM_TYPE_PAGELIST           = 10,
	/* Ensure the enum is a 32 bit data-type */
	VMMDEV_HGCM_PARM_TYPE_SIZEHACK           = 0x7fffffff
};

/** HGCM function parameter, 32-bit client. */
struct vmmdev_hgcm_function_parameter32 {
	enum vmmdev_hgcm_function_parameter_type type;
	union {
		__u32 value32;
		__u64 value64;
		struct {
			__u32 size;
			union {
				__u32 phys_addr;
				__u32 linear_addr;
			} u;
		} pointer;
		struct {
			/** Size of the buffer described by the page list. */
			__u32 size;
			/** Relative to the request header. */
			__u32 offset;
		} page_list;
	} __packed u;
} __packed;
VMMDEV_ASSERT_SIZE(vmmdev_hgcm_function_parameter32, 4 + 8);

/** HGCM function parameter, 64-bit client. */
struct vmmdev_hgcm_function_parameter64 {
	enum vmmdev_hgcm_function_parameter_type type;
	union {
		__u32 value32;
		__u64 value64;
		struct {
			__u32 size;
			union {
				__u64 phys_addr;
				__u64 linear_addr;
			} __packed u;
		} __packed pointer;
		struct {
			/** Size of the buffer described by the page list. */
			__u32 size;
			/** Relative to the request header. */
			__u32 offset;
		} page_list;
	} __packed u;
} __packed;
VMMDEV_ASSERT_SIZE(vmmdev_hgcm_function_parameter64, 4 + 12);

#if __BITS_PER_LONG == 64
#define vmmdev_hgcm_function_parameter vmmdev_hgcm_function_parameter64

Annotation

Implementation Notes