1 /* 2 * This header was generated from the Linux kernel headers by update_headers.py, 3 * to provide necessary information from kernel to userspace, such as constants, 4 * structures, and macros, and thus, contains no copyrightable information. 5 */ 6 #ifndef _LINUX_VHOST_H 7 #define _LINUX_VHOST_H 8 #include <linux/types.h> 9 #include <linux/compiler.h> 10 #include <linux/ioctl.h> 11 #include <linux/virtio_config.h> 12 #include <linux/virtio_ring.h> 13 struct vhost_vring_state { 14 unsigned int index; 15 unsigned int num; 16 }; 17 struct vhost_vring_file { 18 unsigned int index; 19 int fd; 20 }; 21 struct vhost_vring_addr { 22 unsigned int index; 23 24 unsigned int flags; 25 26 27 #define VHOST_VRING_F_LOG 0 28 29 __u64 desc_user_addr; 30 31 __u64 used_user_addr; 32 33 __u64 avail_user_addr; 34 35 36 __u64 log_guest_addr; 37 }; 38 struct vhost_iotlb_msg { 39 __u64 iova; 40 __u64 size; 41 __u64 uaddr; 42 #define VHOST_ACCESS_RO 0x1 43 #define VHOST_ACCESS_WO 0x2 44 #define VHOST_ACCESS_RW 0x3 45 __u8 perm; 46 #define VHOST_IOTLB_MISS 1 47 #define VHOST_IOTLB_UPDATE 2 48 #define VHOST_IOTLB_INVALIDATE 3 49 #define VHOST_IOTLB_ACCESS_FAIL 4 50 __u8 type; 51 }; 52 #define VHOST_IOTLB_MSG 0x1 53 #define VHOST_IOTLB_MSG_V2 0x2 54 struct vhost_msg { 55 int type; 56 union { 57 struct vhost_iotlb_msg iotlb; 58 __u8 padding[64]; 59 }; 60 }; 61 struct vhost_msg_v2 { 62 __u32 type; 63 __u32 reserved; 64 union { 65 struct vhost_iotlb_msg iotlb; 66 __u8 padding[64]; 67 }; 68 }; 69 struct vhost_memory_region { 70 __u64 guest_phys_addr; 71 __u64 memory_size; 72 __u64 userspace_addr; 73 __u64 flags_padding; 74 }; 75 #define VHOST_PAGE_SIZE 0x1000 76 struct vhost_memory { 77 __u32 nregions; 78 __u32 padding; 79 struct vhost_memory_region regions[0]; 80 }; 81 #define VHOST_VIRTIO 0xAF 82 #define VHOST_GET_FEATURES _IOR(VHOST_VIRTIO, 0x00, __u64) 83 #define VHOST_SET_FEATURES _IOW(VHOST_VIRTIO, 0x00, __u64) 84 #define VHOST_SET_OWNER _IO(VHOST_VIRTIO, 0x01) 85 #define VHOST_RESET_OWNER _IO(VHOST_VIRTIO, 0x02) 86 #define VHOST_SET_MEM_TABLE _IOW(VHOST_VIRTIO, 0x03, struct vhost_memory) 87 #define VHOST_SET_LOG_BASE _IOW(VHOST_VIRTIO, 0x04, __u64) 88 #define VHOST_SET_LOG_FD _IOW(VHOST_VIRTIO, 0x07, int) 89 #define VHOST_SET_VRING_NUM _IOW(VHOST_VIRTIO, 0x10, struct vhost_vring_state) 90 #define VHOST_SET_VRING_ADDR _IOW(VHOST_VIRTIO, 0x11, struct vhost_vring_addr) 91 #define VHOST_SET_VRING_BASE _IOW(VHOST_VIRTIO, 0x12, struct vhost_vring_state) 92 #define VHOST_GET_VRING_BASE _IOWR(VHOST_VIRTIO, 0x12, struct vhost_vring_state) 93 #define VHOST_VRING_LITTLE_ENDIAN 0 94 #define VHOST_VRING_BIG_ENDIAN 1 95 #define VHOST_SET_VRING_ENDIAN _IOW(VHOST_VIRTIO, 0x13, struct vhost_vring_state) 96 #define VHOST_GET_VRING_ENDIAN _IOW(VHOST_VIRTIO, 0x14, struct vhost_vring_state) 97 #define VHOST_SET_VRING_KICK _IOW(VHOST_VIRTIO, 0x20, struct vhost_vring_file) 98 #define VHOST_SET_VRING_CALL _IOW(VHOST_VIRTIO, 0x21, struct vhost_vring_file) 99 #define VHOST_SET_VRING_ERR _IOW(VHOST_VIRTIO, 0x22, struct vhost_vring_file) 100 #define VHOST_SET_VRING_BUSYLOOP_TIMEOUT _IOW(VHOST_VIRTIO, 0x23, \ 101 struct vhost_vring_state) 102 #define VHOST_GET_VRING_BUSYLOOP_TIMEOUT _IOW(VHOST_VIRTIO, 0x24, \ 103 struct vhost_vring_state) 104 #define VHOST_BACKEND_F_IOTLB_MSG_V2 0x1 105 #define VHOST_SET_BACKEND_FEATURES _IOW(VHOST_VIRTIO, 0x25, __u64) 106 #define VHOST_GET_BACKEND_FEATURES _IOR(VHOST_VIRTIO, 0x26, __u64) 107 #define VHOST_NET_SET_BACKEND _IOW(VHOST_VIRTIO, 0x30, struct vhost_vring_file) 108 #define VHOST_F_LOG_ALL 26 109 #define VHOST_NET_F_VIRTIO_NET_HDR 27 110 #define VHOST_SCSI_ABI_VERSION 1 111 struct vhost_scsi_target { 112 int abi_version; 113 char vhost_wwpn[224]; 114 unsigned short vhost_tpgt; 115 unsigned short reserved; 116 }; 117 #define VHOST_SCSI_SET_ENDPOINT _IOW(VHOST_VIRTIO, 0x40, struct vhost_scsi_target) 118 #define VHOST_SCSI_CLEAR_ENDPOINT _IOW(VHOST_VIRTIO, 0x41, struct vhost_scsi_target) 119 #define VHOST_SCSI_GET_ABI_VERSION _IOW(VHOST_VIRTIO, 0x42, int) 120 #define VHOST_SCSI_SET_EVENTS_MISSED _IOW(VHOST_VIRTIO, 0x43, __u32) 121 #define VHOST_SCSI_GET_EVENTS_MISSED _IOW(VHOST_VIRTIO, 0x44, __u32) 122 #define VHOST_VSOCK_SET_GUEST_CID _IOW(VHOST_VIRTIO, 0x60, __u64) 123 #define VHOST_VSOCK_SET_RUNNING _IOW(VHOST_VIRTIO, 0x61, int) 124 #endif 125