| 1 | /* |
| 2 | * Virtio QMP helpers |
| 3 | * |
| 4 | * Copyright IBM, Corp. 2007 |
| 5 | * |
| 6 | * Authors: |
| 7 | * Anthony Liguori <aliguori@us.ibm.com> |
| 8 | * |
| 9 | * SPDX-License-Identifier: GPL-2.0-or-later |
| 10 | */ |
| 11 | |
| 12 | #include "qemu/osdep.h" |
| 13 | #include "virtio-qmp.h" |
| 14 | |
| 15 | #include "qapi/error.h" |
| 16 | #include "qapi/qapi-commands-virtio.h" |
| 17 | #include "qapi/qapi-commands-qom.h" |
| 18 | #include "qobject/qobject.h" |
| 19 | #include "qobject/qjson.h" |
| 20 | #include "hw/virtio/vhost-user.h" |
| 21 | |
| 22 | #include "standard-headers/linux/virtio_ids.h" |
| 23 | #include "standard-headers/linux/vhost_types.h" |
| 24 | #include "standard-headers/linux/virtio_blk.h" |
| 25 | #include "standard-headers/linux/virtio_console.h" |
| 26 | #include "standard-headers/linux/virtio_gpu.h" |
| 27 | #include "standard-headers/linux/virtio_net.h" |
| 28 | #include "standard-headers/linux/virtio_scsi.h" |
| 29 | #include "standard-headers/linux/virtio_i2c.h" |
| 30 | #include "standard-headers/linux/virtio_balloon.h" |
| 31 | #include "standard-headers/linux/virtio_iommu.h" |
| 32 | #include "standard-headers/linux/virtio_mem.h" |
| 33 | #include "standard-headers/linux/virtio_vsock.h" |
| 34 | #include "standard-headers/linux/virtio_gpio.h" |
| 35 | |
| 36 | #define FEATURE_ENTRY(name, desc) (qmp_virtio_feature_map_t) \ |
| 37 | { .virtio_bit = name, .feature_desc = desc } |
| 38 | |
| 39 | /* Virtio transport features mapping */ |
| 40 | static const qmp_virtio_feature_map_t virtio_transport_map[] = { |
| 41 | /* Virtio device transport features */ |
| 42 | FEATURE_ENTRY(VIRTIO_F_NOTIFY_ON_EMPTY, \ |
| 43 | "VIRTIO_F_NOTIFY_ON_EMPTY: Notify when device runs out of avail. " |
| 44 | "descs. on VQ"), |
| 45 | FEATURE_ENTRY(VIRTIO_F_ANY_LAYOUT, \ |
| 46 | "VIRTIO_F_ANY_LAYOUT: Device accepts arbitrary desc. layouts"), |
| 47 | FEATURE_ENTRY(VIRTIO_F_VERSION_1, \ |
| 48 | "VIRTIO_F_VERSION_1: Device compliant for v1 spec (legacy)"), |
| 49 | FEATURE_ENTRY(VIRTIO_F_IOMMU_PLATFORM, \ |
| 50 | "VIRTIO_F_IOMMU_PLATFORM: Device can be used on IOMMU platform"), |
| 51 | FEATURE_ENTRY(VIRTIO_F_RING_PACKED, \ |
| 52 | "VIRTIO_F_RING_PACKED: Device supports packed VQ layout"), |
| 53 | FEATURE_ENTRY(VIRTIO_F_IN_ORDER, \ |
| 54 | "VIRTIO_F_IN_ORDER: Device uses buffers in same order as made " |
| 55 | "available by driver"), |
| 56 | FEATURE_ENTRY(VIRTIO_F_ORDER_PLATFORM, \ |
| 57 | "VIRTIO_F_ORDER_PLATFORM: Memory accesses ordered by platform"), |
| 58 | FEATURE_ENTRY(VIRTIO_F_SR_IOV, \ |
| 59 | "VIRTIO_F_SR_IOV: Device supports single root I/O virtualization"), |
| 60 | FEATURE_ENTRY(VIRTIO_F_RING_RESET, \ |
| 61 | "VIRTIO_F_RING_RESET: Driver can reset a queue individually"), |
| 62 | /* Virtio ring transport features */ |
| 63 | FEATURE_ENTRY(VIRTIO_RING_F_INDIRECT_DESC, \ |
| 64 | "VIRTIO_RING_F_INDIRECT_DESC: Indirect descriptors supported"), |
| 65 | FEATURE_ENTRY(VIRTIO_RING_F_EVENT_IDX, \ |
| 66 | "VIRTIO_RING_F_EVENT_IDX: Used & avail. event fields enabled"), |
| 67 | { -1, "" } |
| 68 | }; |
| 69 | |
| 70 | /* Vhost-user protocol features mapping */ |
| 71 | static const qmp_virtio_feature_map_t vhost_user_protocol_map[] = { |
| 72 | FEATURE_ENTRY(VHOST_USER_PROTOCOL_F_MQ, \ |
| 73 | "VHOST_USER_PROTOCOL_F_MQ: Multiqueue protocol supported"), |
| 74 | FEATURE_ENTRY(VHOST_USER_PROTOCOL_F_LOG_SHMFD, \ |
| 75 | "VHOST_USER_PROTOCOL_F_LOG_SHMFD: Shared log memory fd supported"), |
| 76 | FEATURE_ENTRY(VHOST_USER_PROTOCOL_F_RARP, \ |
| 77 | "VHOST_USER_PROTOCOL_F_RARP: Vhost-user back-end RARP broadcasting " |
| 78 | "supported"), |
| 79 | FEATURE_ENTRY(VHOST_USER_PROTOCOL_F_REPLY_ACK, \ |
| 80 | "VHOST_USER_PROTOCOL_F_REPLY_ACK: Requested operation status ack. " |
| 81 | "supported"), |
| 82 | FEATURE_ENTRY(VHOST_USER_PROTOCOL_F_NET_MTU, \ |
| 83 | "VHOST_USER_PROTOCOL_F_NET_MTU: Expose host MTU to guest supported"), |
| 84 | FEATURE_ENTRY(VHOST_USER_PROTOCOL_F_BACKEND_REQ, \ |
| 85 | "VHOST_USER_PROTOCOL_F_BACKEND_REQ: Socket fd for back-end initiated " |
| 86 | "requests supported"), |
| 87 | FEATURE_ENTRY(VHOST_USER_PROTOCOL_F_CROSS_ENDIAN, \ |
| 88 | "VHOST_USER_PROTOCOL_F_CROSS_ENDIAN: Endianness of VQs for legacy " |
| 89 | "devices supported"), |
| 90 | FEATURE_ENTRY(VHOST_USER_PROTOCOL_F_CRYPTO_SESSION, \ |
| 91 | "VHOST_USER_PROTOCOL_F_CRYPTO_SESSION: Session creation for crypto " |
| 92 | "operations supported"), |
| 93 | FEATURE_ENTRY(VHOST_USER_PROTOCOL_F_PAGEFAULT, \ |
| 94 | "VHOST_USER_PROTOCOL_F_PAGEFAULT: Request servicing on userfaultfd " |
| 95 | "for accessed pages supported"), |
| 96 | FEATURE_ENTRY(VHOST_USER_PROTOCOL_F_CONFIG, \ |
| 97 | "VHOST_USER_PROTOCOL_F_CONFIG: Vhost-user messaging for virtio " |
| 98 | "device configuration space supported"), |
| 99 | FEATURE_ENTRY(VHOST_USER_PROTOCOL_F_BACKEND_SEND_FD, \ |
| 100 | "VHOST_USER_PROTOCOL_F_BACKEND_SEND_FD: Backend fd communication " |
| 101 | "channel supported"), |
| 102 | FEATURE_ENTRY(VHOST_USER_PROTOCOL_F_HOST_NOTIFIER, \ |
| 103 | "VHOST_USER_PROTOCOL_F_HOST_NOTIFIER: Host notifiers for specified " |
| 104 | "VQs supported"), |
| 105 | FEATURE_ENTRY(VHOST_USER_PROTOCOL_F_INFLIGHT_SHMFD, \ |
| 106 | "VHOST_USER_PROTOCOL_F_INFLIGHT_SHMFD: Shared inflight I/O buffers " |
| 107 | "supported"), |
| 108 | FEATURE_ENTRY(VHOST_USER_PROTOCOL_F_RESET_DEVICE, \ |
| 109 | "VHOST_USER_PROTOCOL_F_RESET_DEVICE: Disabling all rings and " |
| 110 | "resetting internal device state supported"), |
| 111 | FEATURE_ENTRY(VHOST_USER_PROTOCOL_F_INBAND_NOTIFICATIONS, \ |
| 112 | "VHOST_USER_PROTOCOL_F_INBAND_NOTIFICATIONS: In-band messaging " |
| 113 | "supported"), |
| 114 | FEATURE_ENTRY(VHOST_USER_PROTOCOL_F_CONFIGURE_MEM_SLOTS, \ |
| 115 | "VHOST_USER_PROTOCOL_F_CONFIGURE_MEM_SLOTS: Configuration for " |
| 116 | "memory slots supported"), |
| 117 | FEATURE_ENTRY(VHOST_USER_PROTOCOL_F_STATUS, \ |
| 118 | "VHOST_USER_PROTOCOL_F_STATUS: Querying and notifying back-end " |
| 119 | "device status supported"), |
| 120 | FEATURE_ENTRY(VHOST_USER_PROTOCOL_F_SHARED_OBJECT, \ |
| 121 | "VHOST_USER_PROTOCOL_F_SHARED_OBJECT: Backend shared object " |
| 122 | "supported"), |
| 123 | FEATURE_ENTRY(VHOST_USER_PROTOCOL_F_DEVICE_STATE, \ |
| 124 | "VHOST_USER_PROTOCOL_F_DEVICE_STATE: Backend device state transfer " |
| 125 | "supported"), |
| 126 | FEATURE_ENTRY(VHOST_USER_PROTOCOL_F_SHMEM, \ |
| 127 | "VHOST_USER_PROTOCOL_F_SHMEM: Backend shared memory mapping " |
| 128 | "supported"), |
| 129 | { -1, "" } |
| 130 | }; |
| 131 | |
| 132 | /* virtio device configuration statuses */ |
| 133 | static const qmp_virtio_feature_map_t virtio_config_status_map[] = { |
| 134 | FEATURE_ENTRY(VIRTIO_CONFIG_S_DRIVER_OK, \ |
| 135 | "VIRTIO_CONFIG_S_DRIVER_OK: Driver setup and ready"), |
| 136 | FEATURE_ENTRY(VIRTIO_CONFIG_S_FEATURES_OK, \ |
| 137 | "VIRTIO_CONFIG_S_FEATURES_OK: Feature negotiation complete"), |
| 138 | FEATURE_ENTRY(VIRTIO_CONFIG_S_DRIVER, \ |
| 139 | "VIRTIO_CONFIG_S_DRIVER: Guest OS compatible with device"), |
| 140 | FEATURE_ENTRY(VIRTIO_CONFIG_S_NEEDS_RESET, \ |
| 141 | "VIRTIO_CONFIG_S_NEEDS_RESET: Irrecoverable error, device needs " |
| 142 | "reset"), |
| 143 | FEATURE_ENTRY(VIRTIO_CONFIG_S_FAILED, \ |
| 144 | "VIRTIO_CONFIG_S_FAILED: Error in guest, device failed"), |
| 145 | FEATURE_ENTRY(VIRTIO_CONFIG_S_ACKNOWLEDGE, \ |
| 146 | "VIRTIO_CONFIG_S_ACKNOWLEDGE: Valid virtio device found"), |
| 147 | { -1, "" } |
| 148 | }; |
| 149 | |
| 150 | /* virtio-blk features mapping */ |
| 151 | static const qmp_virtio_feature_map_t virtio_blk_feature_map[] = { |
| 152 | FEATURE_ENTRY(VIRTIO_BLK_F_SIZE_MAX, \ |
| 153 | "VIRTIO_BLK_F_SIZE_MAX: Max segment size is size_max"), |
| 154 | FEATURE_ENTRY(VIRTIO_BLK_F_SEG_MAX, \ |
| 155 | "VIRTIO_BLK_F_SEG_MAX: Max segments in a request is seg_max"), |
| 156 | FEATURE_ENTRY(VIRTIO_BLK_F_GEOMETRY, \ |
| 157 | "VIRTIO_BLK_F_GEOMETRY: Legacy geometry available"), |
| 158 | FEATURE_ENTRY(VIRTIO_BLK_F_RO, \ |
| 159 | "VIRTIO_BLK_F_RO: Device is read-only"), |
| 160 | FEATURE_ENTRY(VIRTIO_BLK_F_BLK_SIZE, \ |
| 161 | "VIRTIO_BLK_F_BLK_SIZE: Block size of disk available"), |
| 162 | FEATURE_ENTRY(VIRTIO_BLK_F_TOPOLOGY, \ |
| 163 | "VIRTIO_BLK_F_TOPOLOGY: Topology information available"), |
| 164 | FEATURE_ENTRY(VIRTIO_BLK_F_MQ, \ |
| 165 | "VIRTIO_BLK_F_MQ: Multiqueue supported"), |
| 166 | FEATURE_ENTRY(VIRTIO_BLK_F_DISCARD, \ |
| 167 | "VIRTIO_BLK_F_DISCARD: Discard command supported"), |
| 168 | FEATURE_ENTRY(VIRTIO_BLK_F_WRITE_ZEROES, \ |
| 169 | "VIRTIO_BLK_F_WRITE_ZEROES: Write zeroes command supported"), |
| 170 | FEATURE_ENTRY(VIRTIO_BLK_F_SECURE_ERASE, \ |
| 171 | "VIRTIO_BLK_F_SECURE_ERASE: Secure erase supported"), |
| 172 | FEATURE_ENTRY(VIRTIO_BLK_F_ZONED, \ |
| 173 | "VIRTIO_BLK_F_ZONED: Zoned block devices"), |
| 174 | FEATURE_ENTRY(VIRTIO_BLK_F_BARRIER, \ |
| 175 | "VIRTIO_BLK_F_BARRIER: Request barriers supported"), |
| 176 | FEATURE_ENTRY(VIRTIO_BLK_F_SCSI, \ |
| 177 | "VIRTIO_BLK_F_SCSI: SCSI packet commands supported"), |
| 178 | FEATURE_ENTRY(VIRTIO_BLK_F_FLUSH, \ |
| 179 | "VIRTIO_BLK_F_FLUSH: Flush command supported"), |
| 180 | FEATURE_ENTRY(VIRTIO_BLK_F_CONFIG_WCE, \ |
| 181 | "VIRTIO_BLK_F_CONFIG_WCE: Cache writeback and writethrough modes " |
| 182 | "supported"), |
| 183 | FEATURE_ENTRY(VHOST_F_LOG_ALL, \ |
| 184 | "VHOST_F_LOG_ALL: Logging write descriptors supported"), |
| 185 | FEATURE_ENTRY(VHOST_USER_F_PROTOCOL_FEATURES, \ |
| 186 | "VHOST_USER_F_PROTOCOL_FEATURES: Vhost-user protocol features " |
| 187 | "negotiation supported"), |
| 188 | { -1, "" } |
| 189 | }; |
| 190 | |
| 191 | /* virtio-serial features mapping */ |
| 192 | static const qmp_virtio_feature_map_t virtio_serial_feature_map[] = { |
| 193 | FEATURE_ENTRY(VIRTIO_CONSOLE_F_SIZE, \ |
| 194 | "VIRTIO_CONSOLE_F_SIZE: Host providing console size"), |
| 195 | FEATURE_ENTRY(VIRTIO_CONSOLE_F_MULTIPORT, \ |
| 196 | "VIRTIO_CONSOLE_F_MULTIPORT: Multiple ports for device supported"), |
| 197 | FEATURE_ENTRY(VIRTIO_CONSOLE_F_EMERG_WRITE, \ |
| 198 | "VIRTIO_CONSOLE_F_EMERG_WRITE: Emergency write supported"), |
| 199 | { -1, "" } |
| 200 | }; |
| 201 | |
| 202 | /* virtio-gpu features mapping */ |
| 203 | static const qmp_virtio_feature_map_t virtio_gpu_feature_map[] = { |
| 204 | FEATURE_ENTRY(VIRTIO_GPU_F_VIRGL, \ |
| 205 | "VIRTIO_GPU_F_VIRGL: Virgl 3D mode supported"), |
| 206 | FEATURE_ENTRY(VIRTIO_GPU_F_EDID, \ |
| 207 | "VIRTIO_GPU_F_EDID: EDID metadata supported"), |
| 208 | FEATURE_ENTRY(VIRTIO_GPU_F_RESOURCE_UUID, \ |
| 209 | "VIRTIO_GPU_F_RESOURCE_UUID: Resource UUID assigning supported"), |
| 210 | FEATURE_ENTRY(VIRTIO_GPU_F_RESOURCE_BLOB, \ |
| 211 | "VIRTIO_GPU_F_RESOURCE_BLOB: Size-based blob resources supported"), |
| 212 | FEATURE_ENTRY(VIRTIO_GPU_F_CONTEXT_INIT, \ |
| 213 | "VIRTIO_GPU_F_CONTEXT_INIT: Context types and synchronization " |
| 214 | "timelines supported"), |
| 215 | FEATURE_ENTRY(VHOST_F_LOG_ALL, \ |
| 216 | "VHOST_F_LOG_ALL: Logging write descriptors supported"), |
| 217 | FEATURE_ENTRY(VHOST_USER_F_PROTOCOL_FEATURES, \ |
| 218 | "VHOST_USER_F_PROTOCOL_FEATURES: Vhost-user protocol features " |
| 219 | "negotiation supported"), |
| 220 | { -1, "" } |
| 221 | }; |
| 222 | |
| 223 | /* virtio-input features mapping */ |
| 224 | static const qmp_virtio_feature_map_t virtio_input_feature_map[] = { |
| 225 | FEATURE_ENTRY(VHOST_F_LOG_ALL, \ |
| 226 | "VHOST_F_LOG_ALL: Logging write descriptors supported"), |
| 227 | FEATURE_ENTRY(VHOST_USER_F_PROTOCOL_FEATURES, \ |
| 228 | "VHOST_USER_F_PROTOCOL_FEATURES: Vhost-user protocol features " |
| 229 | "negotiation supported"), |
| 230 | { -1, "" } |
| 231 | }; |
| 232 | |
| 233 | /* virtio-net features mapping */ |
| 234 | static const qmp_virtio_feature_map_t virtio_net_feature_map[] = { |
| 235 | FEATURE_ENTRY(VIRTIO_NET_F_CSUM, \ |
| 236 | "VIRTIO_NET_F_CSUM: Device handling packets with partial checksum " |
| 237 | "supported"), |
| 238 | FEATURE_ENTRY(VIRTIO_NET_F_GUEST_CSUM, \ |
| 239 | "VIRTIO_NET_F_GUEST_CSUM: Driver handling packets with partial " |
| 240 | "checksum supported"), |
| 241 | FEATURE_ENTRY(VIRTIO_NET_F_CTRL_GUEST_OFFLOADS, \ |
| 242 | "VIRTIO_NET_F_CTRL_GUEST_OFFLOADS: Control channel offloading " |
| 243 | "reconfig. supported"), |
| 244 | FEATURE_ENTRY(VIRTIO_NET_F_MTU, \ |
| 245 | "VIRTIO_NET_F_MTU: Device max MTU reporting supported"), |
| 246 | FEATURE_ENTRY(VIRTIO_NET_F_MAC, \ |
| 247 | "VIRTIO_NET_F_MAC: Device has given MAC address"), |
| 248 | FEATURE_ENTRY(VIRTIO_NET_F_GUEST_TSO4, \ |
| 249 | "VIRTIO_NET_F_GUEST_TSO4: Driver can receive TSOv4"), |
| 250 | FEATURE_ENTRY(VIRTIO_NET_F_GUEST_TSO6, \ |
| 251 | "VIRTIO_NET_F_GUEST_TSO6: Driver can receive TSOv6"), |
| 252 | FEATURE_ENTRY(VIRTIO_NET_F_GUEST_ECN, \ |
| 253 | "VIRTIO_NET_F_GUEST_ECN: Driver can receive TSO with ECN"), |
| 254 | FEATURE_ENTRY(VIRTIO_NET_F_GUEST_UFO, \ |
| 255 | "VIRTIO_NET_F_GUEST_UFO: Driver can receive UFO"), |
| 256 | FEATURE_ENTRY(VIRTIO_NET_F_HOST_TSO4, \ |
| 257 | "VIRTIO_NET_F_HOST_TSO4: Device can receive TSOv4"), |
| 258 | FEATURE_ENTRY(VIRTIO_NET_F_HOST_TSO6, \ |
| 259 | "VIRTIO_NET_F_HOST_TSO6: Device can receive TSOv6"), |
| 260 | FEATURE_ENTRY(VIRTIO_NET_F_HOST_ECN, \ |
| 261 | "VIRTIO_NET_F_HOST_ECN: Device can receive TSO with ECN"), |
| 262 | FEATURE_ENTRY(VIRTIO_NET_F_HOST_UFO, \ |
| 263 | "VIRTIO_NET_F_HOST_UFO: Device can receive UFO"), |
| 264 | FEATURE_ENTRY(VIRTIO_NET_F_MRG_RXBUF, \ |
| 265 | "VIRTIO_NET_F_MRG_RXBUF: Driver can merge receive buffers"), |
| 266 | FEATURE_ENTRY(VIRTIO_NET_F_STATUS, \ |
| 267 | "VIRTIO_NET_F_STATUS: Configuration status field available"), |
| 268 | FEATURE_ENTRY(VIRTIO_NET_F_CTRL_VQ, \ |
| 269 | "VIRTIO_NET_F_CTRL_VQ: Control channel available"), |
| 270 | FEATURE_ENTRY(VIRTIO_NET_F_CTRL_RX, \ |
| 271 | "VIRTIO_NET_F_CTRL_RX: Control channel RX mode supported"), |
| 272 | FEATURE_ENTRY(VIRTIO_NET_F_CTRL_VLAN, \ |
| 273 | "VIRTIO_NET_F_CTRL_VLAN: Control channel VLAN filtering supported"), |
| 274 | FEATURE_ENTRY(VIRTIO_NET_F_CTRL_RX_EXTRA, \ |
| 275 | "VIRTIO_NET_F_CTRL_RX_EXTRA: Extra RX mode control supported"), |
| 276 | FEATURE_ENTRY(VIRTIO_NET_F_GUEST_ANNOUNCE, \ |
| 277 | "VIRTIO_NET_F_GUEST_ANNOUNCE: Driver sending gratuitous packets " |
| 278 | "supported"), |
| 279 | FEATURE_ENTRY(VIRTIO_NET_F_MQ, \ |
| 280 | "VIRTIO_NET_F_MQ: Multiqueue with automatic receive steering " |
| 281 | "supported"), |
| 282 | FEATURE_ENTRY(VIRTIO_NET_F_CTRL_MAC_ADDR, \ |
| 283 | "VIRTIO_NET_F_CTRL_MAC_ADDR: MAC address set through control " |
| 284 | "channel"), |
| 285 | FEATURE_ENTRY(VIRTIO_NET_F_NOTF_COAL, \ |
| 286 | "VIRTIO_NET_F_NOTF_COAL: Device supports coalescing notifications"), |
| 287 | FEATURE_ENTRY(VIRTIO_NET_F_GUEST_USO4, \ |
| 288 | "VIRTIO_NET_F_GUEST_USO4: Driver can receive USOv4"), |
| 289 | FEATURE_ENTRY(VIRTIO_NET_F_GUEST_USO6, \ |
| 290 | "VIRTIO_NET_F_GUEST_USO6: Driver can receive USOv6"), |
| 291 | FEATURE_ENTRY(VIRTIO_NET_F_HOST_USO, \ |
| 292 | "VIRTIO_NET_F_HOST_USO: Device can receive USO"), |
| 293 | FEATURE_ENTRY(VIRTIO_NET_F_HASH_REPORT, \ |
| 294 | "VIRTIO_NET_F_HASH_REPORT: Hash reporting supported"), |
| 295 | FEATURE_ENTRY(VIRTIO_NET_F_RSS, \ |
| 296 | "VIRTIO_NET_F_RSS: RSS RX steering supported"), |
| 297 | FEATURE_ENTRY(VIRTIO_NET_F_RSC_EXT, \ |
| 298 | "VIRTIO_NET_F_RSC_EXT: Extended coalescing info supported"), |
| 299 | FEATURE_ENTRY(VIRTIO_NET_F_STANDBY, \ |
| 300 | "VIRTIO_NET_F_STANDBY: Device acting as standby for primary " |
| 301 | "device with same MAC addr. supported"), |
| 302 | FEATURE_ENTRY(VIRTIO_NET_F_SPEED_DUPLEX, \ |
| 303 | "VIRTIO_NET_F_SPEED_DUPLEX: Device set linkspeed and duplex"), |
| 304 | FEATURE_ENTRY(VIRTIO_NET_F_GSO, \ |
| 305 | "VIRTIO_NET_F_GSO: Handling GSO-type packets supported"), |
| 306 | FEATURE_ENTRY(VHOST_NET_F_VIRTIO_NET_HDR, \ |
| 307 | "VHOST_NET_F_VIRTIO_NET_HDR: Virtio-net headers for RX and TX " |
| 308 | "packets supported"), |
| 309 | FEATURE_ENTRY(VHOST_F_LOG_ALL, \ |
| 310 | "VHOST_F_LOG_ALL: Logging write descriptors supported"), |
| 311 | FEATURE_ENTRY(VHOST_USER_F_PROTOCOL_FEATURES, \ |
| 312 | "VHOST_USER_F_PROTOCOL_FEATURES: Vhost-user protocol features " |
| 313 | "negotiation supported"), |
| 314 | FEATURE_ENTRY(VIRTIO_NET_F_GUEST_UDP_TUNNEL_GSO, \ |
| 315 | "VIRTIO_NET_F_GUEST_UDP_TUNNEL_GSO: Driver can receive GSO over " |
| 316 | "UDP tunnel packets"), |
| 317 | FEATURE_ENTRY(VIRTIO_NET_F_GUEST_UDP_TUNNEL_GSO_CSUM, \ |
| 318 | "VIRTIO_NET_F_GUEST_UDP_TUNNEL_GSO: Driver can receive GSO over " |
| 319 | "UDP tunnel packets requiring checksum offload for the outer " |
| 320 | "header"), |
| 321 | FEATURE_ENTRY(VIRTIO_NET_F_HOST_UDP_TUNNEL_GSO, \ |
| 322 | "VIRTIO_NET_F_HOST_UDP_TUNNEL_GSO: Device can receive GSO over " |
| 323 | "UDP tunnel packets"), |
| 324 | FEATURE_ENTRY(VIRTIO_NET_F_HOST_UDP_TUNNEL_GSO_CSUM, \ |
| 325 | "VIRTIO_NET_F_HOST_UDP_TUNNEL_GSO_CSUM: Device can receive GSO over " |
| 326 | "UDP tunnel packets requiring checksum offload for the outer " |
| 327 | "header"), |
| 328 | { -1, "" } |
| 329 | }; |
| 330 | |
| 331 | /* virtio-scsi features mapping */ |
| 332 | static const qmp_virtio_feature_map_t virtio_scsi_feature_map[] = { |
| 333 | FEATURE_ENTRY(VIRTIO_SCSI_F_INOUT, \ |
| 334 | "VIRTIO_SCSI_F_INOUT: Requests including read and writable data " |
| 335 | "buffers supported"), |
| 336 | FEATURE_ENTRY(VIRTIO_SCSI_F_HOTPLUG, \ |
| 337 | "VIRTIO_SCSI_F_HOTPLUG: Reporting and handling hot-plug events " |
| 338 | "supported"), |
| 339 | FEATURE_ENTRY(VIRTIO_SCSI_F_CHANGE, \ |
| 340 | "VIRTIO_SCSI_F_CHANGE: Reporting and handling LUN changes " |
| 341 | "supported"), |
| 342 | FEATURE_ENTRY(VIRTIO_SCSI_F_T10_PI, \ |
| 343 | "VIRTIO_SCSI_F_T10_PI: T10 info included in request header"), |
| 344 | FEATURE_ENTRY(VHOST_F_LOG_ALL, \ |
| 345 | "VHOST_F_LOG_ALL: Logging write descriptors supported"), |
| 346 | FEATURE_ENTRY(VHOST_USER_F_PROTOCOL_FEATURES, \ |
| 347 | "VHOST_USER_F_PROTOCOL_FEATURES: Vhost-user protocol features " |
| 348 | "negotiation supported"), |
| 349 | { -1, "" } |
| 350 | }; |
| 351 | |
| 352 | /* virtio/vhost-user-fs features mapping */ |
| 353 | static const qmp_virtio_feature_map_t virtio_fs_feature_map[] = { |
| 354 | FEATURE_ENTRY(VHOST_F_LOG_ALL, \ |
| 355 | "VHOST_F_LOG_ALL: Logging write descriptors supported"), |
| 356 | FEATURE_ENTRY(VHOST_USER_F_PROTOCOL_FEATURES, \ |
| 357 | "VHOST_USER_F_PROTOCOL_FEATURES: Vhost-user protocol features " |
| 358 | "negotiation supported"), |
| 359 | { -1, "" } |
| 360 | }; |
| 361 | |
| 362 | /* virtio/vhost-user-i2c features mapping */ |
| 363 | static const qmp_virtio_feature_map_t virtio_i2c_feature_map[] = { |
| 364 | FEATURE_ENTRY(VIRTIO_I2C_F_ZERO_LENGTH_REQUEST, \ |
| 365 | "VIRTIO_I2C_F_ZERO_LEGNTH_REQUEST: Zero length requests supported"), |
| 366 | FEATURE_ENTRY(VHOST_F_LOG_ALL, \ |
| 367 | "VHOST_F_LOG_ALL: Logging write descriptors supported"), |
| 368 | FEATURE_ENTRY(VHOST_USER_F_PROTOCOL_FEATURES, \ |
| 369 | "VHOST_USER_F_PROTOCOL_FEATURES: Vhost-user protocol features " |
| 370 | "negotiation supported"), |
| 371 | { -1, "" } |
| 372 | }; |
| 373 | |
| 374 | /* virtio/vhost-vsock features mapping */ |
| 375 | static const qmp_virtio_feature_map_t virtio_vsock_feature_map[] = { |
| 376 | FEATURE_ENTRY(VIRTIO_VSOCK_F_SEQPACKET, \ |
| 377 | "VIRTIO_VSOCK_F_SEQPACKET: SOCK_SEQPACKET supported"), |
| 378 | FEATURE_ENTRY(VHOST_F_LOG_ALL, \ |
| 379 | "VHOST_F_LOG_ALL: Logging write descriptors supported"), |
| 380 | FEATURE_ENTRY(VHOST_USER_F_PROTOCOL_FEATURES, \ |
| 381 | "VHOST_USER_F_PROTOCOL_FEATURES: Vhost-user protocol features " |
| 382 | "negotiation supported"), |
| 383 | { -1, "" } |
| 384 | }; |
| 385 | |
| 386 | /* virtio-balloon features mapping */ |
| 387 | static const qmp_virtio_feature_map_t virtio_balloon_feature_map[] = { |
| 388 | FEATURE_ENTRY(VIRTIO_BALLOON_F_MUST_TELL_HOST, \ |
| 389 | "VIRTIO_BALLOON_F_MUST_TELL_HOST: Tell host before reclaiming " |
| 390 | "pages"), |
| 391 | FEATURE_ENTRY(VIRTIO_BALLOON_F_STATS_VQ, \ |
| 392 | "VIRTIO_BALLOON_F_STATS_VQ: Guest memory stats VQ available"), |
| 393 | FEATURE_ENTRY(VIRTIO_BALLOON_F_DEFLATE_ON_OOM, \ |
| 394 | "VIRTIO_BALLOON_F_DEFLATE_ON_OOM: Deflate balloon when guest OOM"), |
| 395 | FEATURE_ENTRY(VIRTIO_BALLOON_F_FREE_PAGE_HINT, \ |
| 396 | "VIRTIO_BALLOON_F_FREE_PAGE_HINT: VQ reporting free pages enabled"), |
| 397 | FEATURE_ENTRY(VIRTIO_BALLOON_F_PAGE_POISON, \ |
| 398 | "VIRTIO_BALLOON_F_PAGE_POISON: Guest page poisoning enabled"), |
| 399 | FEATURE_ENTRY(VIRTIO_BALLOON_F_REPORTING, \ |
| 400 | "VIRTIO_BALLOON_F_REPORTING: Page reporting VQ enabled"), |
| 401 | { -1, "" } |
| 402 | }; |
| 403 | |
| 404 | /* virtio-crypto features mapping */ |
| 405 | static const qmp_virtio_feature_map_t virtio_crypto_feature_map[] = { |
| 406 | FEATURE_ENTRY(VHOST_F_LOG_ALL, \ |
| 407 | "VHOST_F_LOG_ALL: Logging write descriptors supported"), |
| 408 | { -1, "" } |
| 409 | }; |
| 410 | |
| 411 | /* virtio-iommu features mapping */ |
| 412 | static const qmp_virtio_feature_map_t virtio_iommu_feature_map[] = { |
| 413 | FEATURE_ENTRY(VIRTIO_IOMMU_F_INPUT_RANGE, \ |
| 414 | "VIRTIO_IOMMU_F_INPUT_RANGE: Range of available virtual addrs. " |
| 415 | "available"), |
| 416 | FEATURE_ENTRY(VIRTIO_IOMMU_F_DOMAIN_RANGE, \ |
| 417 | "VIRTIO_IOMMU_F_DOMAIN_RANGE: Number of supported domains " |
| 418 | "available"), |
| 419 | FEATURE_ENTRY(VIRTIO_IOMMU_F_MAP_UNMAP, \ |
| 420 | "VIRTIO_IOMMU_F_MAP_UNMAP: Map and unmap requests available"), |
| 421 | FEATURE_ENTRY(VIRTIO_IOMMU_F_BYPASS, \ |
| 422 | "VIRTIO_IOMMU_F_BYPASS: Endpoints not attached to domains are in " |
| 423 | "bypass mode"), |
| 424 | FEATURE_ENTRY(VIRTIO_IOMMU_F_PROBE, \ |
| 425 | "VIRTIO_IOMMU_F_PROBE: Probe requests available"), |
| 426 | FEATURE_ENTRY(VIRTIO_IOMMU_F_MMIO, \ |
| 427 | "VIRTIO_IOMMU_F_MMIO: VIRTIO_IOMMU_MAP_F_MMIO flag available"), |
| 428 | FEATURE_ENTRY(VIRTIO_IOMMU_F_BYPASS_CONFIG, \ |
| 429 | "VIRTIO_IOMMU_F_BYPASS_CONFIG: Bypass field of IOMMU config " |
| 430 | "available"), |
| 431 | { -1, "" } |
| 432 | }; |
| 433 | |
| 434 | /* virtio-mem features mapping */ |
| 435 | static const qmp_virtio_feature_map_t virtio_mem_feature_map[] = { |
| 436 | FEATURE_ENTRY(VIRTIO_MEM_F_ACPI_PXM, \ |
| 437 | "VIRTIO_MEM_F_ACPI_PXM: node_id is an ACPI PXM and is valid"), |
| 438 | FEATURE_ENTRY(VIRTIO_MEM_F_UNPLUGGED_INACCESSIBLE, \ |
| 439 | "VIRTIO_MEM_F_UNPLUGGED_INACCESSIBLE: Unplugged memory cannot be " |
| 440 | "accessed"), |
| 441 | FEATURE_ENTRY(VIRTIO_MEM_F_PERSISTENT_SUSPEND, \ |
| 442 | "VIRTIO_MEM_F_PERSISTENT_SUSPND: Plugged memory will remain " |
| 443 | "plugged when suspending+resuming"), |
| 444 | { -1, "" } |
| 445 | }; |
| 446 | |
| 447 | /* virtio-rng features mapping */ |
| 448 | static const qmp_virtio_feature_map_t virtio_rng_feature_map[] = { |
| 449 | FEATURE_ENTRY(VHOST_F_LOG_ALL, \ |
| 450 | "VHOST_F_LOG_ALL: Logging write descriptors supported"), |
| 451 | FEATURE_ENTRY(VHOST_USER_F_PROTOCOL_FEATURES, \ |
| 452 | "VHOST_USER_F_PROTOCOL_FEATURES: Vhost-user protocol features " |
| 453 | "negotiation supported"), |
| 454 | { -1, "" } |
| 455 | }; |
| 456 | |
| 457 | /* virtio/vhost-gpio features mapping */ |
| 458 | static const qmp_virtio_feature_map_t virtio_gpio_feature_map[] = { |
| 459 | FEATURE_ENTRY(VIRTIO_GPIO_F_IRQ, \ |
| 460 | "VIRTIO_GPIO_F_IRQ: Device supports interrupts on GPIO lines"), |
| 461 | FEATURE_ENTRY(VHOST_USER_F_PROTOCOL_FEATURES, \ |
| 462 | "VHOST_USER_F_PROTOCOL_FEATURES: Vhost-user protocol features " |
| 463 | "negotiation supported"), |
| 464 | { -1, "" } |
| 465 | }; |
| 466 | |
| 467 | #define CONVERT_FEATURES(type, map, is_status, bitmap) \ |
| 468 | ({ \ |
| 469 | type *list = NULL; \ |
| 470 | type *node; \ |
| 471 | for (i = 0; map[i].virtio_bit != -1; i++) { \ |
| 472 | if (is_status) { \ |
| 473 | bit = map[i].virtio_bit; \ |
| 474 | } \ |
| 475 | else { \ |
| 476 | bit = 1ULL << map[i].virtio_bit; \ |
| 477 | } \ |
| 478 | if ((bitmap & bit) == 0) { \ |
| 479 | continue; \ |
| 480 | } \ |
| 481 | node = g_new0(type, 1); \ |
| 482 | node->value = g_strdup(map[i].feature_desc); \ |
| 483 | node->next = list; \ |
| 484 | list = node; \ |
| 485 | bitmap ^= bit; \ |
| 486 | } \ |
| 487 | list; \ |
| 488 | }) |
| 489 | |
| 490 | #define CONVERT_FEATURES_EX(type, map, bitmap) \ |
| 491 | ({ \ |
| 492 | type *list = NULL; \ |
| 493 | type *node; \ |
| 494 | for (i = 0; map[i].virtio_bit != -1; i++) { \ |
| 495 | bit = map[i].virtio_bit; \ |
| 496 | if (!virtio_has_feature_ex(bitmap, bit)) { \ |
| 497 | continue; \ |
| 498 | } \ |
| 499 | node = g_new0(type, 1); \ |
| 500 | node->value = g_strdup(map[i].feature_desc); \ |
| 501 | node->next = list; \ |
| 502 | list = node; \ |
| 503 | virtio_clear_feature_ex(bitmap, bit); \ |
| 504 | } \ |
| 505 | list; \ |
| 506 | }) |
| 507 | |
| 508 | VirtioDeviceStatus *qmp_decode_status(uint8_t bitmap) |
| 509 | { |
| 510 | VirtioDeviceStatus *status; |
| 511 | uint8_t bit; |
| 512 | int i; |
| 513 | |
| 514 | status = g_new0(VirtioDeviceStatus, 1); |
| 515 | status->statuses = CONVERT_FEATURES(strList, virtio_config_status_map, |
| 516 | 1, bitmap); |
| 517 | status->has_unknown_statuses = bitmap != 0; |
| 518 | if (status->has_unknown_statuses) { |
| 519 | status->unknown_statuses = bitmap; |
| 520 | } |
| 521 | |
| 522 | return status; |
| 523 | } |
| 524 | |
| 525 | VhostDeviceProtocols *qmp_decode_protocols(uint64_t bitmap) |
| 526 | { |
| 527 | VhostDeviceProtocols *vhu_protocols; |
| 528 | uint64_t bit; |
| 529 | int i; |
| 530 | |
| 531 | vhu_protocols = g_new0(VhostDeviceProtocols, 1); |
| 532 | vhu_protocols->protocols = |
| 533 | CONVERT_FEATURES(strList, |
| 534 | vhost_user_protocol_map, 0, bitmap); |
| 535 | vhu_protocols->has_unknown_protocols = bitmap != 0; |
| 536 | if (vhu_protocols->has_unknown_protocols) { |
| 537 | vhu_protocols->unknown_protocols = bitmap; |
| 538 | } |
| 539 | |
| 540 | return vhu_protocols; |
| 541 | } |
| 542 | |
| 543 | VirtioDeviceFeatures *qmp_decode_features(uint16_t device_id, |
| 544 | const uint64_t *bmap) |
| 545 | { |
| 546 | uint64_t bitmap[VIRTIO_FEATURES_NU64S]; |
| 547 | VirtioDeviceFeatures *features; |
| 548 | uint64_t bit; |
| 549 | int i; |
| 550 | |
| 551 | virtio_features_copy(bitmap, bmap); |
| 552 | features = g_new0(VirtioDeviceFeatures, 1); |
| 553 | features->has_dev_features = true; |
| 554 | |
| 555 | /* transport features */ |
| 556 | features->transports = CONVERT_FEATURES_EX(strList, virtio_transport_map, |
| 557 | bitmap); |
| 558 | |
| 559 | /* device features */ |
| 560 | switch (device_id) { |
| 561 | case VIRTIO_ID_CONSOLE: |
| 562 | features->dev_features = |
| 563 | CONVERT_FEATURES_EX(strList, virtio_serial_feature_map, bitmap); |
| 564 | break; |
| 565 | case VIRTIO_ID_BLOCK: |
| 566 | features->dev_features = |
| 567 | CONVERT_FEATURES_EX(strList, virtio_blk_feature_map, bitmap); |
| 568 | break; |
| 569 | case VIRTIO_ID_GPU: |
| 570 | features->dev_features = |
| 571 | CONVERT_FEATURES_EX(strList, virtio_gpu_feature_map, bitmap); |
| 572 | break; |
| 573 | case VIRTIO_ID_NET: |
| 574 | features->dev_features = |
| 575 | CONVERT_FEATURES_EX(strList, virtio_net_feature_map, bitmap); |
| 576 | break; |
| 577 | case VIRTIO_ID_SCSI: |
| 578 | features->dev_features = |
| 579 | CONVERT_FEATURES_EX(strList, virtio_scsi_feature_map, bitmap); |
| 580 | break; |
| 581 | case VIRTIO_ID_BALLOON: |
| 582 | features->dev_features = |
| 583 | CONVERT_FEATURES_EX(strList, virtio_balloon_feature_map, bitmap); |
| 584 | break; |
| 585 | case VIRTIO_ID_IOMMU: |
| 586 | features->dev_features = |
| 587 | CONVERT_FEATURES_EX(strList, virtio_iommu_feature_map, bitmap); |
| 588 | break; |
| 589 | case VIRTIO_ID_INPUT: |
| 590 | features->dev_features = |
| 591 | CONVERT_FEATURES_EX(strList, virtio_input_feature_map, bitmap); |
| 592 | break; |
| 593 | case VIRTIO_ID_FS: |
| 594 | features->dev_features = |
| 595 | CONVERT_FEATURES_EX(strList, virtio_fs_feature_map, bitmap); |
| 596 | break; |
| 597 | case VIRTIO_ID_VSOCK: |
| 598 | features->dev_features = |
| 599 | CONVERT_FEATURES_EX(strList, virtio_vsock_feature_map, bitmap); |
| 600 | break; |
| 601 | case VIRTIO_ID_CRYPTO: |
| 602 | features->dev_features = |
| 603 | CONVERT_FEATURES_EX(strList, virtio_crypto_feature_map, bitmap); |
| 604 | break; |
| 605 | case VIRTIO_ID_MEM: |
| 606 | features->dev_features = |
| 607 | CONVERT_FEATURES_EX(strList, virtio_mem_feature_map, bitmap); |
| 608 | break; |
| 609 | case VIRTIO_ID_I2C_ADAPTER: |
| 610 | features->dev_features = |
| 611 | CONVERT_FEATURES_EX(strList, virtio_i2c_feature_map, bitmap); |
| 612 | break; |
| 613 | case VIRTIO_ID_RNG: |
| 614 | features->dev_features = |
| 615 | CONVERT_FEATURES_EX(strList, virtio_rng_feature_map, bitmap); |
| 616 | break; |
| 617 | case VIRTIO_ID_GPIO: |
| 618 | features->dev_features = |
| 619 | CONVERT_FEATURES_EX(strList, virtio_gpio_feature_map, bitmap); |
| 620 | break; |
| 621 | /* No features */ |
| 622 | case VIRTIO_ID_9P: |
| 623 | case VIRTIO_ID_PMEM: |
| 624 | case VIRTIO_ID_IOMEM: |
| 625 | case VIRTIO_ID_RPMSG: |
| 626 | case VIRTIO_ID_CLOCK: |
| 627 | case VIRTIO_ID_MAC80211_WLAN: |
| 628 | case VIRTIO_ID_MAC80211_HWSIM: |
| 629 | case VIRTIO_ID_RPROC_SERIAL: |
| 630 | case VIRTIO_ID_MEMORY_BALLOON: |
| 631 | case VIRTIO_ID_CAIF: |
| 632 | case VIRTIO_ID_SIGNAL_DIST: |
| 633 | case VIRTIO_ID_PSTORE: |
| 634 | case VIRTIO_ID_SOUND: |
| 635 | case VIRTIO_ID_BT: |
| 636 | case VIRTIO_ID_RPMB: |
| 637 | case VIRTIO_ID_VIDEO_ENCODER: |
| 638 | case VIRTIO_ID_VIDEO_DECODER: |
| 639 | case VIRTIO_ID_SCMI: |
| 640 | case VIRTIO_ID_NITRO_SEC_MOD: |
| 641 | case VIRTIO_ID_WATCHDOG: |
| 642 | case VIRTIO_ID_CAN: |
| 643 | case VIRTIO_ID_DMABUF: |
| 644 | case VIRTIO_ID_PARAM_SERV: |
| 645 | case VIRTIO_ID_AUDIO_POLICY: |
| 646 | break; |
| 647 | default: |
| 648 | g_assert_not_reached(); |
| 649 | } |
| 650 | |
| 651 | features->has_unknown_dev_features = !virtio_features_empty(bitmap); |
| 652 | features->unknown_dev_features = bitmap[0]; |
| 653 | features->unknown_dev_features2 = bitmap[1]; |
| 654 | |
| 655 | return features; |
| 656 | } |
| 657 | |
| 658 | static int query_dev_child(Object *child, void *opaque) |
| 659 | { |
| 660 | VirtioInfoList **vdevs = opaque; |
| 661 | Object *dev = object_dynamic_cast(child, TYPE_VIRTIO_DEVICE); |
| 662 | if (dev != NULL && qdev_is_realized(DEVICE(dev))) { |
| 663 | VirtIODevice *vdev = VIRTIO_DEVICE(dev); |
| 664 | VirtioInfo *info = g_new(VirtioInfo, 1); |
| 665 | |
| 666 | /* Get canonical path & name of device */ |
| 667 | info->path = object_get_canonical_path(dev); |
| 668 | info->name = g_strdup(vdev->name); |
| 669 | QAPI_LIST_PREPEND(*vdevs, info); |
| 670 | } |
| 671 | return 0; |
| 672 | } |
| 673 | |
| 674 | VirtioInfoList *qmp_x_query_virtio(Error **errp) |
| 675 | { |
| 676 | VirtioInfoList *vdevs = NULL; |
| 677 | |
| 678 | /* Query the QOM composition tree recursively for virtio devices */ |
| 679 | object_child_foreach_recursive(object_get_root(), query_dev_child, &vdevs); |
| 680 | if (vdevs == NULL) { |
| 681 | error_setg(errp, "No virtio devices found"); |
| 682 | } |
| 683 | return vdevs; |
| 684 | } |
| 685 | |
| 686 | VirtIODevice *qmp_find_virtio_device(const char *path) |
| 687 | { |
| 688 | /* Verify the canonical path is a realized virtio device */ |
| 689 | Object *dev = object_dynamic_cast(object_resolve_path(path, NULL), |
| 690 | TYPE_VIRTIO_DEVICE); |
| 691 | if (!dev || !qdev_is_realized(DEVICE(dev))) { |
| 692 | return NULL; |
| 693 | } |
| 694 | return VIRTIO_DEVICE(dev); |
| 695 | } |
| 696 | |
| 697 | VirtioStatus *qmp_x_query_virtio_status(const char *path, Error **errp) |
| 698 | { |
| 699 | VirtIODevice *vdev; |
| 700 | VirtioStatus *status; |
| 701 | |
| 702 | vdev = qmp_find_virtio_device(path); |
| 703 | if (vdev == NULL) { |
| 704 | error_setg(errp, "Path %s is not a realized VirtIODevice", path); |
| 705 | return NULL; |
| 706 | } |
| 707 | |
| 708 | status = g_new0(VirtioStatus, 1); |
| 709 | status->name = g_strdup(vdev->name); |
| 710 | status->device_id = vdev->device_id; |
| 711 | status->vhost_started = vdev->vhost_started; |
| 712 | status->guest_features = qmp_decode_features(vdev->device_id, |
| 713 | vdev->guest_features_ex); |
| 714 | status->host_features = qmp_decode_features(vdev->device_id, |
| 715 | vdev->host_features_ex); |
| 716 | |
| 717 | switch (vdev->device_endian) { |
| 718 | case VIRTIO_DEVICE_ENDIAN_LITTLE: |
| 719 | status->device_endian = g_strdup("little"); |
| 720 | break; |
| 721 | case VIRTIO_DEVICE_ENDIAN_BIG: |
| 722 | status->device_endian = g_strdup("big"); |
| 723 | break; |
| 724 | default: |
| 725 | status->device_endian = g_strdup("unknown"); |
| 726 | break; |
| 727 | } |
| 728 | |
| 729 | status->num_vqs = virtio_get_num_queues(vdev); |
| 730 | status->status = qmp_decode_status(vdev->status); |
| 731 | status->isr = vdev->isr; |
| 732 | status->queue_sel = vdev->queue_sel; |
| 733 | status->vm_running = vdev->vm_running; |
| 734 | status->broken = vdev->broken; |
| 735 | status->disabled = vdev->disabled; |
| 736 | status->use_started = vdev->use_started; |
| 737 | status->started = vdev->started; |
| 738 | status->start_on_kick = vdev->start_on_kick; |
| 739 | status->disable_legacy_check = vdev->disable_legacy_check; |
| 740 | status->bus_name = g_strdup(vdev->bus_name); |
| 741 | status->use_guest_notifier_mask = vdev->use_guest_notifier_mask; |
| 742 | |
| 743 | if (vdev->vhost_started) { |
| 744 | VirtioDeviceClass *vdc = VIRTIO_DEVICE_GET_CLASS(vdev); |
| 745 | struct vhost_dev *hdev = vdc->get_vhost(vdev); |
| 746 | |
| 747 | status->vhost_dev = g_new0(VhostStatus, 1); |
| 748 | status->vhost_dev->n_mem_sections = hdev->n_mem_sections; |
| 749 | status->vhost_dev->n_tmp_sections = hdev->n_tmp_sections; |
| 750 | status->vhost_dev->nvqs = hdev->nvqs; |
| 751 | status->vhost_dev->vq_index = hdev->vq_index; |
| 752 | status->vhost_dev->features = |
| 753 | qmp_decode_features(vdev->device_id, vhost_dev_features_ex(hdev)); |
| 754 | status->vhost_dev->acked_features = |
| 755 | qmp_decode_features(vdev->device_id, hdev->acked_features_ex); |
| 756 | |
| 757 | status->vhost_dev->max_queues = hdev->max_queues; |
| 758 | status->vhost_dev->backend_cap = hdev->backend_cap; |
| 759 | status->vhost_dev->log_enabled = hdev->log_enabled; |
| 760 | status->vhost_dev->log_size = hdev->log_size; |
| 761 | |
| 762 | if (hdev->vhost_ops->backend_type == VHOST_BACKEND_TYPE_USER) { |
| 763 | vhost_user_qmp_status(hdev, status); |
| 764 | } |
| 765 | } |
| 766 | |
| 767 | return status; |
| 768 | } |
| 769 | |
| 770 | VirtVhostQueueStatus *qmp_x_query_virtio_vhost_queue_status(const char *path, |
| 771 | uint16_t queue, |
| 772 | Error **errp) |
| 773 | { |
| 774 | VirtIODevice *vdev; |
| 775 | VirtVhostQueueStatus *status; |
| 776 | |
| 777 | vdev = qmp_find_virtio_device(path); |
| 778 | if (vdev == NULL) { |
| 779 | error_setg(errp, "Path %s is not a VirtIODevice", path); |
| 780 | return NULL; |
| 781 | } |
| 782 | |
| 783 | if (!vdev->vhost_started) { |
| 784 | error_setg(errp, "Error: vhost device has not started yet"); |
| 785 | return NULL; |
| 786 | } |
| 787 | |
| 788 | VirtioDeviceClass *vdc = VIRTIO_DEVICE_GET_CLASS(vdev); |
| 789 | struct vhost_dev *hdev = vdc->get_vhost(vdev); |
| 790 | |
| 791 | if (queue < hdev->vq_index || queue >= hdev->vq_index + hdev->nvqs) { |
| 792 | error_setg(errp, "Invalid vhost virtqueue number %d", queue); |
| 793 | return NULL; |
| 794 | } |
| 795 | |
| 796 | status = g_new0(VirtVhostQueueStatus, 1); |
| 797 | status->name = g_strdup(vdev->name); |
| 798 | status->kick = hdev->vqs[queue].kick; |
| 799 | status->call = hdev->vqs[queue].call; |
| 800 | status->num = hdev->vqs[queue].num; |
| 801 | status->desc_phys = hdev->vqs[queue].desc_phys; |
| 802 | status->desc_size = hdev->vqs[queue].desc_size; |
| 803 | status->avail_phys = hdev->vqs[queue].avail_phys; |
| 804 | status->avail_size = hdev->vqs[queue].avail_size; |
| 805 | status->used_phys = hdev->vqs[queue].used_phys; |
| 806 | status->used_size = hdev->vqs[queue].used_size; |
| 807 | |
| 808 | return status; |
| 809 | } |