diff options
Diffstat (limited to 'vhost_user.h')
| -rw-r--r-- | vhost_user.h | 46 |
1 files changed, 42 insertions, 4 deletions
diff --git a/vhost_user.h b/vhost_user.h index 464ba21..fbacb55 100644 --- a/vhost_user.h +++ b/vhost_user.h @@ -37,6 +37,10 @@ enum vhost_user_protocol_feature { VHOST_USER_PROTOCOL_F_INFLIGHT_SHMFD = 12, VHOST_USER_PROTOCOL_F_INBAND_NOTIFICATIONS = 14, VHOST_USER_PROTOCOL_F_CONFIGURE_MEM_SLOTS = 15, + VHOST_USER_PROTOCOL_F_STATUS = 16, + /* Feature 17 reserved for VHOST_USER_PROTOCOL_F_XEN_MMAP. */ + VHOST_USER_PROTOCOL_F_SHARED_OBJECT = 18, + VHOST_USER_PROTOCOL_F_DEVICE_STATE = 19, VHOST_USER_PROTOCOL_F_MAX }; @@ -83,6 +87,11 @@ enum vhost_user_request { VHOST_USER_GET_MAX_MEM_SLOTS = 36, VHOST_USER_ADD_MEM_REG = 37, VHOST_USER_REM_MEM_REG = 38, + VHOST_USER_SET_STATUS = 39, + VHOST_USER_GET_STATUS = 40, + VHOST_USER_GET_SHARED_OBJECT = 41, + VHOST_USER_SET_DEVICE_STATE_FD = 42, + VHOST_USER_CHECK_DEVICE_STATE = 43, VHOST_USER_MAX }; @@ -129,11 +138,38 @@ struct vhost_user_memory { }; /** + * struct vhost_user_log - Address and size of the shared memory region used + * to log page update + * @mmap_size: Size of the shared memory region + * @mmap_offset: Offset of the shared memory region + */ +struct vhost_user_log { + uint64_t mmap_size; + uint64_t mmap_offset; +}; + +/** + * struct vhost_user_transfer_device_state - Set the direction and phase + * of the backend device state fd + * @direction: Device state transfer direction (save or load) + * @phase: Migration phase (only stopped is supported) + */ +struct vhost_user_transfer_device_state { + uint32_t direction; +#define VHOST_USER_TRANSFER_STATE_DIRECTION_SAVE 0 +#define VHOST_USER_TRANSFER_STATE_DIRECTION_LOAD 1 + uint32_t phase; +#define VHOST_USER_TRANSFER_STATE_PHASE_STOPPED 0 +}; + +/** * union vhost_user_payload - vhost-user message payload - * @u64: 64-bit payload - * @state: vring state payload - * @addr: vring addresses payload - * vhost_user_memory: Memory regions information payload + * @u64: 64-bit payload + * @state: vring state payload + * @addr: vring addresses payload + * @vhost_user_memory: Memory regions information payload + * @vhost_user_log: Memory logging payload + * @vhost_user_transfer_device_state: Device state payload */ union vhost_user_payload { #define VHOST_USER_VRING_IDX_MASK 0xff @@ -142,6 +178,8 @@ union vhost_user_payload { struct vhost_vring_state state; struct vhost_vring_addr addr; struct vhost_user_memory memory; + struct vhost_user_log log; + struct vhost_user_transfer_device_state transfer_state; }; /** |