vhost.h revision 96c1db7b9d601c31d103389cac074a6cce0d7633 
1/****************************************************************************
2 ****************************************************************************
3 ***
4 ***   This header was automatically generated from a Linux kernel header
5 ***   of the same name, to make information necessary for userspace to
6 ***   call into the kernel available to libc.  It contains only constants,
7 ***   structures, and macros generated from the original header, and thus,
8 ***   contains no copyrightable information.
9 ***
10 ***   To edit the content of this header, modify the corresponding
11 ***   source file (e.g. under external/kernel-headers/original/) then
12 ***   run bionic/libc/kernel/tools/update_all.py
13 ***
14 ***   Any manual change here will be lost the next time this script will
15 ***   be run. You've been warned!
16 ***
17 ****************************************************************************
18 ****************************************************************************/
19#ifndef _LINUX_VHOST_H
20#define _LINUX_VHOST_H
21#include <linux/types.h>
22#include <linux/compiler.h>
23#include <linux/ioctl.h>
24#include <linux/virtio_config.h>
25#include <linux/virtio_ring.h>
26struct vhost_vring_state {
27  unsigned int index;
28  unsigned int num;
29};
30struct vhost_vring_file {
31  unsigned int index;
32  int fd;
33};
34struct vhost_vring_addr {
35  unsigned int index;
36  unsigned int flags;
37#define VHOST_VRING_F_LOG 0
38  __u64 desc_user_addr;
39  __u64 used_user_addr;
40  __u64 avail_user_addr;
41  __u64 log_guest_addr;
42};
43struct vhost_iotlb_msg {
44  __u64 iova;
45  __u64 size;
46  __u64 uaddr;
47#define VHOST_ACCESS_RO 0x1
48#define VHOST_ACCESS_WO 0x2
49#define VHOST_ACCESS_RW 0x3
50  __u8 perm;
51#define VHOST_IOTLB_MISS 1
52#define VHOST_IOTLB_UPDATE 2
53#define VHOST_IOTLB_INVALIDATE 3
54#define VHOST_IOTLB_ACCESS_FAIL 4
55  __u8 type;
56};
57#define VHOST_IOTLB_MSG 0x1
58struct vhost_msg {
59  int type;
60  union {
61    struct vhost_iotlb_msg iotlb;
62    __u8 padding[64];
63  };
64};
65struct vhost_memory_region {
66  __u64 guest_phys_addr;
67  __u64 memory_size;
68  __u64 userspace_addr;
69  __u64 flags_padding;
70};
71#define VHOST_PAGE_SIZE 0x1000
72struct vhost_memory {
73  __u32 nregions;
74  __u32 padding;
75  struct vhost_memory_region regions[0];
76};
77#define VHOST_VIRTIO 0xAF
78#define VHOST_GET_FEATURES _IOR(VHOST_VIRTIO, 0x00, __u64)
79#define VHOST_SET_FEATURES _IOW(VHOST_VIRTIO, 0x00, __u64)
80#define VHOST_SET_OWNER _IO(VHOST_VIRTIO, 0x01)
81#define VHOST_RESET_OWNER _IO(VHOST_VIRTIO, 0x02)
82#define VHOST_SET_MEM_TABLE _IOW(VHOST_VIRTIO, 0x03, struct vhost_memory)
83#define VHOST_SET_LOG_BASE _IOW(VHOST_VIRTIO, 0x04, __u64)
84#define VHOST_SET_LOG_FD _IOW(VHOST_VIRTIO, 0x07, int)
85#define VHOST_SET_VRING_NUM _IOW(VHOST_VIRTIO, 0x10, struct vhost_vring_state)
86#define VHOST_SET_VRING_ADDR _IOW(VHOST_VIRTIO, 0x11, struct vhost_vring_addr)
87#define VHOST_SET_VRING_BASE _IOW(VHOST_VIRTIO, 0x12, struct vhost_vring_state)
88#define VHOST_GET_VRING_BASE _IOWR(VHOST_VIRTIO, 0x12, struct vhost_vring_state)
89#define VHOST_VRING_LITTLE_ENDIAN 0
90#define VHOST_VRING_BIG_ENDIAN 1
91#define VHOST_SET_VRING_ENDIAN _IOW(VHOST_VIRTIO, 0x13, struct vhost_vring_state)
92#define VHOST_GET_VRING_ENDIAN _IOW(VHOST_VIRTIO, 0x14, struct vhost_vring_state)
93#define VHOST_SET_VRING_KICK _IOW(VHOST_VIRTIO, 0x20, struct vhost_vring_file)
94#define VHOST_SET_VRING_CALL _IOW(VHOST_VIRTIO, 0x21, struct vhost_vring_file)
95#define VHOST_SET_VRING_ERR _IOW(VHOST_VIRTIO, 0x22, struct vhost_vring_file)
96#define VHOST_SET_VRING_BUSYLOOP_TIMEOUT _IOW(VHOST_VIRTIO, 0x23, struct vhost_vring_state)
97#define VHOST_GET_VRING_BUSYLOOP_TIMEOUT _IOW(VHOST_VIRTIO, 0x24, struct vhost_vring_state)
98#define VHOST_NET_SET_BACKEND _IOW(VHOST_VIRTIO, 0x30, struct vhost_vring_file)
99#define VHOST_F_LOG_ALL 26
100#define VHOST_NET_F_VIRTIO_NET_HDR 27
101#define VHOST_SCSI_ABI_VERSION 1
102struct vhost_scsi_target {
103  int abi_version;
104  char vhost_wwpn[224];
105  unsigned short vhost_tpgt;
106  unsigned short reserved;
107};
108#define VHOST_SCSI_SET_ENDPOINT _IOW(VHOST_VIRTIO, 0x40, struct vhost_scsi_target)
109#define VHOST_SCSI_CLEAR_ENDPOINT _IOW(VHOST_VIRTIO, 0x41, struct vhost_scsi_target)
110#define VHOST_SCSI_GET_ABI_VERSION _IOW(VHOST_VIRTIO, 0x42, int)
111#define VHOST_SCSI_SET_EVENTS_MISSED _IOW(VHOST_VIRTIO, 0x43, __u32)
112#define VHOST_SCSI_GET_EVENTS_MISSED _IOW(VHOST_VIRTIO, 0x44, __u32)
113#define VHOST_VSOCK_SET_GUEST_CID _IOW(VHOST_VIRTIO, 0x60, __u64)
114#define VHOST_VSOCK_SET_RUNNING _IOW(VHOST_VIRTIO, 0x61, int)
115#endif
116