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/****************************************************************************
****************************************************************************
***
*** This header was automatically generated from a Linux kernel header
*** of the same name, to make information necessary for userspace to
*** call into the kernel available to libc. It contains only constants,
*** structures, and macros generated from the original header, and thus,
*** contains no copyrightable information.
***
*** To edit the content of this header, modify the corresponding
*** source file (e.g. under external/kernel-headers/original/) then
*** run bionic/libc/kernel/tools/update_all.py
***
*** Any manual change here will be lost the next time this script will
*** be run. You've been warned!
***
****************************************************************************
****************************************************************************/
#ifndef _UAPI_VDUSE_H_
#define _UAPI_VDUSE_H_
#include <linux/types.h>
#define VDUSE_BASE 0x81
#define VDUSE_API_VERSION 0
#define VDUSE_GET_API_VERSION _IOR(VDUSE_BASE, 0x00, __u64)
#define VDUSE_SET_API_VERSION _IOW(VDUSE_BASE, 0x01, __u64)
struct vduse_dev_config {
#define VDUSE_NAME_MAX 256
char name[VDUSE_NAME_MAX];
__u32 vendor_id;
__u32 device_id;
__u64 features;
__u32 vq_num;
__u32 vq_align;
__u32 reserved[13];
__u32 config_size;
__u8 config[];
};
#define VDUSE_CREATE_DEV _IOW(VDUSE_BASE, 0x02, struct vduse_dev_config)
#define VDUSE_DESTROY_DEV _IOW(VDUSE_BASE, 0x03, char[VDUSE_NAME_MAX])
struct vduse_iotlb_entry {
__u64 offset;
__u64 start;
__u64 last;
#define VDUSE_ACCESS_RO 0x1
#define VDUSE_ACCESS_WO 0x2
#define VDUSE_ACCESS_RW 0x3
__u8 perm;
};
#define VDUSE_IOTLB_GET_FD _IOWR(VDUSE_BASE, 0x10, struct vduse_iotlb_entry)
#define VDUSE_DEV_GET_FEATURES _IOR(VDUSE_BASE, 0x11, __u64)
struct vduse_config_data {
__u32 offset;
__u32 length;
__u8 buffer[];
};
#define VDUSE_DEV_SET_CONFIG _IOW(VDUSE_BASE, 0x12, struct vduse_config_data)
#define VDUSE_DEV_INJECT_CONFIG_IRQ _IO(VDUSE_BASE, 0x13)
struct vduse_vq_config {
__u32 index;
__u16 max_size;
__u16 reserved[13];
};
#define VDUSE_VQ_SETUP _IOW(VDUSE_BASE, 0x14, struct vduse_vq_config)
struct vduse_vq_state_split {
__u16 avail_index;
};
struct vduse_vq_state_packed {
__u16 last_avail_counter;
__u16 last_avail_idx;
__u16 last_used_counter;
__u16 last_used_idx;
};
struct vduse_vq_info {
__u32 index;
__u32 num;
__u64 desc_addr;
__u64 driver_addr;
__u64 device_addr;
union {
struct vduse_vq_state_split split;
struct vduse_vq_state_packed packed;
};
__u8 ready;
};
#define VDUSE_VQ_GET_INFO _IOWR(VDUSE_BASE, 0x15, struct vduse_vq_info)
struct vduse_vq_eventfd {
__u32 index;
#define VDUSE_EVENTFD_DEASSIGN - 1
int fd;
};
#define VDUSE_VQ_SETUP_KICKFD _IOW(VDUSE_BASE, 0x16, struct vduse_vq_eventfd)
#define VDUSE_VQ_INJECT_IRQ _IOW(VDUSE_BASE, 0x17, __u32)
enum vduse_req_type {
VDUSE_GET_VQ_STATE,
VDUSE_SET_STATUS,
VDUSE_UPDATE_IOTLB,
};
struct vduse_vq_state {
__u32 index;
union {
struct vduse_vq_state_split split;
struct vduse_vq_state_packed packed;
};
};
struct vduse_dev_status {
__u8 status;
};
struct vduse_iova_range {
__u64 start;
__u64 last;
};
struct vduse_dev_request {
__u32 type;
__u32 request_id;
__u32 reserved[4];
union {
struct vduse_vq_state vq_state;
struct vduse_dev_status s;
struct vduse_iova_range iova;
__u32 padding[32];
};
};
struct vduse_dev_response {
__u32 request_id;
#define VDUSE_REQ_RESULT_OK 0x00
#define VDUSE_REQ_RESULT_FAILED 0x01
__u32 result;
__u32 reserved[4];
union {
struct vduse_vq_state vq_state;
__u32 padding[32];
};
};
#endif
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