| /* |
| * Virtio QMP helpers |
| * |
| * Copyright IBM, Corp. 2007 |
| * |
| * Authors: |
| * Anthony Liguori <aliguori@us.ibm.com> |
| * |
| * SPDX-License-Identifier: GPL-2.0-or-later |
| */ |
| |
| #include "qemu/osdep.h" |
| #include "virtio-qmp.h" |
| |
| #include "qapi/error.h" |
| #include "qapi/qapi-commands-virtio.h" |
| #include "qapi/qapi-commands-qom.h" |
| #include "qapi/qmp/qobject.h" |
| #include "qapi/qmp/qjson.h" |
| |
| #include "standard-headers/linux/virtio_ids.h" |
| #include "standard-headers/linux/vhost_types.h" |
| #include "standard-headers/linux/virtio_blk.h" |
| #include "standard-headers/linux/virtio_console.h" |
| #include "standard-headers/linux/virtio_gpu.h" |
| #include "standard-headers/linux/virtio_net.h" |
| #include "standard-headers/linux/virtio_scsi.h" |
| #include "standard-headers/linux/virtio_i2c.h" |
| #include "standard-headers/linux/virtio_balloon.h" |
| #include "standard-headers/linux/virtio_iommu.h" |
| #include "standard-headers/linux/virtio_mem.h" |
| #include "standard-headers/linux/virtio_vsock.h" |
| |
| #include CONFIG_DEVICES |
| |
| #define FEATURE_ENTRY(name, desc) (qmp_virtio_feature_map_t) \ |
| { .virtio_bit = name, .feature_desc = desc } |
| |
| enum VhostUserProtocolFeature { |
| VHOST_USER_PROTOCOL_F_MQ = 0, |
| VHOST_USER_PROTOCOL_F_LOG_SHMFD = 1, |
| VHOST_USER_PROTOCOL_F_RARP = 2, |
| VHOST_USER_PROTOCOL_F_REPLY_ACK = 3, |
| VHOST_USER_PROTOCOL_F_NET_MTU = 4, |
| VHOST_USER_PROTOCOL_F_BACKEND_REQ = 5, |
| VHOST_USER_PROTOCOL_F_CROSS_ENDIAN = 6, |
| VHOST_USER_PROTOCOL_F_CRYPTO_SESSION = 7, |
| VHOST_USER_PROTOCOL_F_PAGEFAULT = 8, |
| VHOST_USER_PROTOCOL_F_CONFIG = 9, |
| VHOST_USER_PROTOCOL_F_BACKEND_SEND_FD = 10, |
| VHOST_USER_PROTOCOL_F_HOST_NOTIFIER = 11, |
| VHOST_USER_PROTOCOL_F_INFLIGHT_SHMFD = 12, |
| VHOST_USER_PROTOCOL_F_RESET_DEVICE = 13, |
| VHOST_USER_PROTOCOL_F_INBAND_NOTIFICATIONS = 14, |
| VHOST_USER_PROTOCOL_F_CONFIGURE_MEM_SLOTS = 15, |
| VHOST_USER_PROTOCOL_F_MAX |
| }; |
| |
| /* Virtio transport features mapping */ |
| static const qmp_virtio_feature_map_t virtio_transport_map[] = { |
| /* Virtio device transport features */ |
| #ifndef VIRTIO_CONFIG_NO_LEGACY |
| FEATURE_ENTRY(VIRTIO_F_NOTIFY_ON_EMPTY, \ |
| "VIRTIO_F_NOTIFY_ON_EMPTY: Notify when device runs out of avail. " |
| "descs. on VQ"), |
| FEATURE_ENTRY(VIRTIO_F_ANY_LAYOUT, \ |
| "VIRTIO_F_ANY_LAYOUT: Device accepts arbitrary desc. layouts"), |
| #endif /* !VIRTIO_CONFIG_NO_LEGACY */ |
| FEATURE_ENTRY(VIRTIO_F_VERSION_1, \ |
| "VIRTIO_F_VERSION_1: Device compliant for v1 spec (legacy)"), |
| FEATURE_ENTRY(VIRTIO_F_IOMMU_PLATFORM, \ |
| "VIRTIO_F_IOMMU_PLATFORM: Device can be used on IOMMU platform"), |
| FEATURE_ENTRY(VIRTIO_F_RING_PACKED, \ |
| "VIRTIO_F_RING_PACKED: Device supports packed VQ layout"), |
| FEATURE_ENTRY(VIRTIO_F_IN_ORDER, \ |
| "VIRTIO_F_IN_ORDER: Device uses buffers in same order as made " |
| "available by driver"), |
| FEATURE_ENTRY(VIRTIO_F_ORDER_PLATFORM, \ |
| "VIRTIO_F_ORDER_PLATFORM: Memory accesses ordered by platform"), |
| FEATURE_ENTRY(VIRTIO_F_SR_IOV, \ |
| "VIRTIO_F_SR_IOV: Device supports single root I/O virtualization"), |
| /* Virtio ring transport features */ |
| FEATURE_ENTRY(VIRTIO_RING_F_INDIRECT_DESC, \ |
| "VIRTIO_RING_F_INDIRECT_DESC: Indirect descriptors supported"), |
| FEATURE_ENTRY(VIRTIO_RING_F_EVENT_IDX, \ |
| "VIRTIO_RING_F_EVENT_IDX: Used & avail. event fields enabled"), |
| { -1, "" } |
| }; |
| |
| /* Vhost-user protocol features mapping */ |
| static const qmp_virtio_feature_map_t vhost_user_protocol_map[] = { |
| FEATURE_ENTRY(VHOST_USER_PROTOCOL_F_MQ, \ |
| "VHOST_USER_PROTOCOL_F_MQ: Multiqueue protocol supported"), |
| FEATURE_ENTRY(VHOST_USER_PROTOCOL_F_LOG_SHMFD, \ |
| "VHOST_USER_PROTOCOL_F_LOG_SHMFD: Shared log memory fd supported"), |
| FEATURE_ENTRY(VHOST_USER_PROTOCOL_F_RARP, \ |
| "VHOST_USER_PROTOCOL_F_RARP: Vhost-user back-end RARP broadcasting " |
| "supported"), |
| FEATURE_ENTRY(VHOST_USER_PROTOCOL_F_REPLY_ACK, \ |
| "VHOST_USER_PROTOCOL_F_REPLY_ACK: Requested operation status ack. " |
| "supported"), |
| FEATURE_ENTRY(VHOST_USER_PROTOCOL_F_NET_MTU, \ |
| "VHOST_USER_PROTOCOL_F_NET_MTU: Expose host MTU to guest supported"), |
| FEATURE_ENTRY(VHOST_USER_PROTOCOL_F_BACKEND_REQ, \ |
| "VHOST_USER_PROTOCOL_F_BACKEND_REQ: Socket fd for back-end initiated " |
| "requests supported"), |
| FEATURE_ENTRY(VHOST_USER_PROTOCOL_F_CROSS_ENDIAN, \ |
| "VHOST_USER_PROTOCOL_F_CROSS_ENDIAN: Endianness of VQs for legacy " |
| "devices supported"), |
| FEATURE_ENTRY(VHOST_USER_PROTOCOL_F_CRYPTO_SESSION, \ |
| "VHOST_USER_PROTOCOL_F_CRYPTO_SESSION: Session creation for crypto " |
| "operations supported"), |
| FEATURE_ENTRY(VHOST_USER_PROTOCOL_F_PAGEFAULT, \ |
| "VHOST_USER_PROTOCOL_F_PAGEFAULT: Request servicing on userfaultfd " |
| "for accessed pages supported"), |
| FEATURE_ENTRY(VHOST_USER_PROTOCOL_F_CONFIG, \ |
| "VHOST_USER_PROTOCOL_F_CONFIG: Vhost-user messaging for virtio " |
| "device configuration space supported"), |
| FEATURE_ENTRY(VHOST_USER_PROTOCOL_F_BACKEND_SEND_FD, \ |
| "VHOST_USER_PROTOCOL_F_BACKEND_SEND_FD: Backend fd communication " |
| "channel supported"), |
| FEATURE_ENTRY(VHOST_USER_PROTOCOL_F_HOST_NOTIFIER, \ |
| "VHOST_USER_PROTOCOL_F_HOST_NOTIFIER: Host notifiers for specified " |
| "VQs supported"), |
| FEATURE_ENTRY(VHOST_USER_PROTOCOL_F_INFLIGHT_SHMFD, \ |
| "VHOST_USER_PROTOCOL_F_INFLIGHT_SHMFD: Shared inflight I/O buffers " |
| "supported"), |
| FEATURE_ENTRY(VHOST_USER_PROTOCOL_F_RESET_DEVICE, \ |
| "VHOST_USER_PROTOCOL_F_RESET_DEVICE: Disabling all rings and " |
| "resetting internal device state supported"), |
| FEATURE_ENTRY(VHOST_USER_PROTOCOL_F_INBAND_NOTIFICATIONS, \ |
| "VHOST_USER_PROTOCOL_F_INBAND_NOTIFICATIONS: In-band messaging " |
| "supported"), |
| FEATURE_ENTRY(VHOST_USER_PROTOCOL_F_CONFIGURE_MEM_SLOTS, \ |
| "VHOST_USER_PROTOCOL_F_CONFIGURE_MEM_SLOTS: Configuration for " |
| "memory slots supported"), |
| { -1, "" } |
| }; |
| |
| /* virtio device configuration statuses */ |
| static const qmp_virtio_feature_map_t virtio_config_status_map[] = { |
| FEATURE_ENTRY(VIRTIO_CONFIG_S_DRIVER_OK, \ |
| "VIRTIO_CONFIG_S_DRIVER_OK: Driver setup and ready"), |
| FEATURE_ENTRY(VIRTIO_CONFIG_S_FEATURES_OK, \ |
| "VIRTIO_CONFIG_S_FEATURES_OK: Feature negotiation complete"), |
| FEATURE_ENTRY(VIRTIO_CONFIG_S_DRIVER, \ |
| "VIRTIO_CONFIG_S_DRIVER: Guest OS compatible with device"), |
| FEATURE_ENTRY(VIRTIO_CONFIG_S_NEEDS_RESET, \ |
| "VIRTIO_CONFIG_S_NEEDS_RESET: Irrecoverable error, device needs " |
| "reset"), |
| FEATURE_ENTRY(VIRTIO_CONFIG_S_FAILED, \ |
| "VIRTIO_CONFIG_S_FAILED: Error in guest, device failed"), |
| FEATURE_ENTRY(VIRTIO_CONFIG_S_ACKNOWLEDGE, \ |
| "VIRTIO_CONFIG_S_ACKNOWLEDGE: Valid virtio device found"), |
| { -1, "" } |
| }; |
| |
| /* virtio-blk features mapping */ |
| #ifdef CONFIG_VIRTIO_BLK |
| static const qmp_virtio_feature_map_t virtio_blk_feature_map[] = { |
| FEATURE_ENTRY(VIRTIO_BLK_F_SIZE_MAX, \ |
| "VIRTIO_BLK_F_SIZE_MAX: Max segment size is size_max"), |
| FEATURE_ENTRY(VIRTIO_BLK_F_SEG_MAX, \ |
| "VIRTIO_BLK_F_SEG_MAX: Max segments in a request is seg_max"), |
| FEATURE_ENTRY(VIRTIO_BLK_F_GEOMETRY, \ |
| "VIRTIO_BLK_F_GEOMETRY: Legacy geometry available"), |
| FEATURE_ENTRY(VIRTIO_BLK_F_RO, \ |
| "VIRTIO_BLK_F_RO: Device is read-only"), |
| FEATURE_ENTRY(VIRTIO_BLK_F_BLK_SIZE, \ |
| "VIRTIO_BLK_F_BLK_SIZE: Block size of disk available"), |
| FEATURE_ENTRY(VIRTIO_BLK_F_TOPOLOGY, \ |
| "VIRTIO_BLK_F_TOPOLOGY: Topology information available"), |
| FEATURE_ENTRY(VIRTIO_BLK_F_MQ, \ |
| "VIRTIO_BLK_F_MQ: Multiqueue supported"), |
| FEATURE_ENTRY(VIRTIO_BLK_F_DISCARD, \ |
| "VIRTIO_BLK_F_DISCARD: Discard command supported"), |
| FEATURE_ENTRY(VIRTIO_BLK_F_WRITE_ZEROES, \ |
| "VIRTIO_BLK_F_WRITE_ZEROES: Write zeroes command supported"), |
| FEATURE_ENTRY(VIRTIO_BLK_F_ZONED, \ |
| "VIRTIO_BLK_F_ZONED: Zoned block devices"), |
| #ifndef VIRTIO_BLK_NO_LEGACY |
| FEATURE_ENTRY(VIRTIO_BLK_F_BARRIER, \ |
| "VIRTIO_BLK_F_BARRIER: Request barriers supported"), |
| FEATURE_ENTRY(VIRTIO_BLK_F_SCSI, \ |
| "VIRTIO_BLK_F_SCSI: SCSI packet commands supported"), |
| FEATURE_ENTRY(VIRTIO_BLK_F_FLUSH, \ |
| "VIRTIO_BLK_F_FLUSH: Flush command supported"), |
| FEATURE_ENTRY(VIRTIO_BLK_F_CONFIG_WCE, \ |
| "VIRTIO_BLK_F_CONFIG_WCE: Cache writeback and writethrough modes " |
| "supported"), |
| #endif /* !VIRTIO_BLK_NO_LEGACY */ |
| FEATURE_ENTRY(VHOST_F_LOG_ALL, \ |
| "VHOST_F_LOG_ALL: Logging write descriptors supported"), |
| FEATURE_ENTRY(VHOST_USER_F_PROTOCOL_FEATURES, \ |
| "VHOST_USER_F_PROTOCOL_FEATURES: Vhost-user protocol features " |
| "negotiation supported"), |
| { -1, "" } |
| }; |
| #endif |
| |
| /* virtio-serial features mapping */ |
| #ifdef CONFIG_VIRTIO_SERIAL |
| static const qmp_virtio_feature_map_t virtio_serial_feature_map[] = { |
| FEATURE_ENTRY(VIRTIO_CONSOLE_F_SIZE, \ |
| "VIRTIO_CONSOLE_F_SIZE: Host providing console size"), |
| FEATURE_ENTRY(VIRTIO_CONSOLE_F_MULTIPORT, \ |
| "VIRTIO_CONSOLE_F_MULTIPORT: Multiple ports for device supported"), |
| FEATURE_ENTRY(VIRTIO_CONSOLE_F_EMERG_WRITE, \ |
| "VIRTIO_CONSOLE_F_EMERG_WRITE: Emergency write supported"), |
| { -1, "" } |
| }; |
| #endif |
| |
| /* virtio-gpu features mapping */ |
| #ifdef CONFIG_VIRTIO_GPU |
| static const qmp_virtio_feature_map_t virtio_gpu_feature_map[] = { |
| FEATURE_ENTRY(VIRTIO_GPU_F_VIRGL, \ |
| "VIRTIO_GPU_F_VIRGL: Virgl 3D mode supported"), |
| FEATURE_ENTRY(VIRTIO_GPU_F_EDID, \ |
| "VIRTIO_GPU_F_EDID: EDID metadata supported"), |
| FEATURE_ENTRY(VIRTIO_GPU_F_RESOURCE_UUID, \ |
| "VIRTIO_GPU_F_RESOURCE_UUID: Resource UUID assigning supported"), |
| FEATURE_ENTRY(VIRTIO_GPU_F_RESOURCE_BLOB, \ |
| "VIRTIO_GPU_F_RESOURCE_BLOB: Size-based blob resources supported"), |
| FEATURE_ENTRY(VIRTIO_GPU_F_CONTEXT_INIT, \ |
| "VIRTIO_GPU_F_CONTEXT_INIT: Context types and synchronization " |
| "timelines supported"), |
| FEATURE_ENTRY(VHOST_F_LOG_ALL, \ |
| "VHOST_F_LOG_ALL: Logging write descriptors supported"), |
| FEATURE_ENTRY(VHOST_USER_F_PROTOCOL_FEATURES, \ |
| "VHOST_USER_F_PROTOCOL_FEATURES: Vhost-user protocol features " |
| "negotiation supported"), |
| { -1, "" } |
| }; |
| #endif |
| |
| /* virtio-input features mapping */ |
| #ifdef CONFIG_VIRTIO_INPUT |
| static const qmp_virtio_feature_map_t virtio_input_feature_map[] = { |
| FEATURE_ENTRY(VHOST_F_LOG_ALL, \ |
| "VHOST_F_LOG_ALL: Logging write descriptors supported"), |
| FEATURE_ENTRY(VHOST_USER_F_PROTOCOL_FEATURES, \ |
| "VHOST_USER_F_PROTOCOL_FEATURES: Vhost-user protocol features " |
| "negotiation supported"), |
| { -1, "" } |
| }; |
| #endif |
| |
| /* virtio-net features mapping */ |
| #ifdef CONFIG_VIRTIO_NET |
| static const qmp_virtio_feature_map_t virtio_net_feature_map[] = { |
| FEATURE_ENTRY(VIRTIO_NET_F_CSUM, \ |
| "VIRTIO_NET_F_CSUM: Device handling packets with partial checksum " |
| "supported"), |
| FEATURE_ENTRY(VIRTIO_NET_F_GUEST_CSUM, \ |
| "VIRTIO_NET_F_GUEST_CSUM: Driver handling packets with partial " |
| "checksum supported"), |
| FEATURE_ENTRY(VIRTIO_NET_F_CTRL_GUEST_OFFLOADS, \ |
| "VIRTIO_NET_F_CTRL_GUEST_OFFLOADS: Control channel offloading " |
| "reconfig. supported"), |
| FEATURE_ENTRY(VIRTIO_NET_F_MTU, \ |
| "VIRTIO_NET_F_MTU: Device max MTU reporting supported"), |
| FEATURE_ENTRY(VIRTIO_NET_F_MAC, \ |
| "VIRTIO_NET_F_MAC: Device has given MAC address"), |
| FEATURE_ENTRY(VIRTIO_NET_F_GUEST_TSO4, \ |
| "VIRTIO_NET_F_GUEST_TSO4: Driver can receive TSOv4"), |
| FEATURE_ENTRY(VIRTIO_NET_F_GUEST_TSO6, \ |
| "VIRTIO_NET_F_GUEST_TSO6: Driver can receive TSOv6"), |
| FEATURE_ENTRY(VIRTIO_NET_F_GUEST_ECN, \ |
| "VIRTIO_NET_F_GUEST_ECN: Driver can receive TSO with ECN"), |
| FEATURE_ENTRY(VIRTIO_NET_F_GUEST_UFO, \ |
| "VIRTIO_NET_F_GUEST_UFO: Driver can receive UFO"), |
| FEATURE_ENTRY(VIRTIO_NET_F_HOST_TSO4, \ |
| "VIRTIO_NET_F_HOST_TSO4: Device can receive TSOv4"), |
| FEATURE_ENTRY(VIRTIO_NET_F_HOST_TSO6, \ |
| "VIRTIO_NET_F_HOST_TSO6: Device can receive TSOv6"), |
| FEATURE_ENTRY(VIRTIO_NET_F_HOST_ECN, \ |
| "VIRTIO_NET_F_HOST_ECN: Device can receive TSO with ECN"), |
| FEATURE_ENTRY(VIRTIO_NET_F_HOST_UFO, \ |
| "VIRTIO_NET_F_HOST_UFO: Device can receive UFO"), |
| FEATURE_ENTRY(VIRTIO_NET_F_MRG_RXBUF, \ |
| "VIRTIO_NET_F_MRG_RXBUF: Driver can merge receive buffers"), |
| FEATURE_ENTRY(VIRTIO_NET_F_STATUS, \ |
| "VIRTIO_NET_F_STATUS: Configuration status field available"), |
| FEATURE_ENTRY(VIRTIO_NET_F_CTRL_VQ, \ |
| "VIRTIO_NET_F_CTRL_VQ: Control channel available"), |
| FEATURE_ENTRY(VIRTIO_NET_F_CTRL_RX, \ |
| "VIRTIO_NET_F_CTRL_RX: Control channel RX mode supported"), |
| FEATURE_ENTRY(VIRTIO_NET_F_CTRL_VLAN, \ |
| "VIRTIO_NET_F_CTRL_VLAN: Control channel VLAN filtering supported"), |
| FEATURE_ENTRY(VIRTIO_NET_F_CTRL_RX_EXTRA, \ |
| "VIRTIO_NET_F_CTRL_RX_EXTRA: Extra RX mode control supported"), |
| FEATURE_ENTRY(VIRTIO_NET_F_GUEST_ANNOUNCE, \ |
| "VIRTIO_NET_F_GUEST_ANNOUNCE: Driver sending gratuitous packets " |
| "supported"), |
| FEATURE_ENTRY(VIRTIO_NET_F_MQ, \ |
| "VIRTIO_NET_F_MQ: Multiqueue with automatic receive steering " |
| "supported"), |
| FEATURE_ENTRY(VIRTIO_NET_F_CTRL_MAC_ADDR, \ |
| "VIRTIO_NET_F_CTRL_MAC_ADDR: MAC address set through control " |
| "channel"), |
| FEATURE_ENTRY(VIRTIO_NET_F_HASH_REPORT, \ |
| "VIRTIO_NET_F_HASH_REPORT: Hash reporting supported"), |
| FEATURE_ENTRY(VIRTIO_NET_F_RSS, \ |
| "VIRTIO_NET_F_RSS: RSS RX steering supported"), |
| FEATURE_ENTRY(VIRTIO_NET_F_RSC_EXT, \ |
| "VIRTIO_NET_F_RSC_EXT: Extended coalescing info supported"), |
| FEATURE_ENTRY(VIRTIO_NET_F_STANDBY, \ |
| "VIRTIO_NET_F_STANDBY: Device acting as standby for primary " |
| "device with same MAC addr. supported"), |
| FEATURE_ENTRY(VIRTIO_NET_F_SPEED_DUPLEX, \ |
| "VIRTIO_NET_F_SPEED_DUPLEX: Device set linkspeed and duplex"), |
| #ifndef VIRTIO_NET_NO_LEGACY |
| FEATURE_ENTRY(VIRTIO_NET_F_GSO, \ |
| "VIRTIO_NET_F_GSO: Handling GSO-type packets supported"), |
| #endif /* !VIRTIO_NET_NO_LEGACY */ |
| FEATURE_ENTRY(VHOST_NET_F_VIRTIO_NET_HDR, \ |
| "VHOST_NET_F_VIRTIO_NET_HDR: Virtio-net headers for RX and TX " |
| "packets supported"), |
| FEATURE_ENTRY(VHOST_F_LOG_ALL, \ |
| "VHOST_F_LOG_ALL: Logging write descriptors supported"), |
| FEATURE_ENTRY(VHOST_USER_F_PROTOCOL_FEATURES, \ |
| "VHOST_USER_F_PROTOCOL_FEATURES: Vhost-user protocol features " |
| "negotiation supported"), |
| { -1, "" } |
| }; |
| #endif |
| |
| /* virtio-scsi features mapping */ |
| #ifdef CONFIG_VIRTIO_SCSI |
| static const qmp_virtio_feature_map_t virtio_scsi_feature_map[] = { |
| FEATURE_ENTRY(VIRTIO_SCSI_F_INOUT, \ |
| "VIRTIO_SCSI_F_INOUT: Requests including read and writable data " |
| "buffers supported"), |
| FEATURE_ENTRY(VIRTIO_SCSI_F_HOTPLUG, \ |
| "VIRTIO_SCSI_F_HOTPLUG: Reporting and handling hot-plug events " |
| "supported"), |
| FEATURE_ENTRY(VIRTIO_SCSI_F_CHANGE, \ |
| "VIRTIO_SCSI_F_CHANGE: Reporting and handling LUN changes " |
| "supported"), |
| FEATURE_ENTRY(VIRTIO_SCSI_F_T10_PI, \ |
| "VIRTIO_SCSI_F_T10_PI: T10 info included in request header"), |
| FEATURE_ENTRY(VHOST_F_LOG_ALL, \ |
| "VHOST_F_LOG_ALL: Logging write descriptors supported"), |
| FEATURE_ENTRY(VHOST_USER_F_PROTOCOL_FEATURES, \ |
| "VHOST_USER_F_PROTOCOL_FEATURES: Vhost-user protocol features " |
| "negotiation supported"), |
| { -1, "" } |
| }; |
| #endif |
| |
| /* virtio/vhost-user-fs features mapping */ |
| #ifdef CONFIG_VHOST_USER_FS |
| static const qmp_virtio_feature_map_t virtio_fs_feature_map[] = { |
| FEATURE_ENTRY(VHOST_F_LOG_ALL, \ |
| "VHOST_F_LOG_ALL: Logging write descriptors supported"), |
| FEATURE_ENTRY(VHOST_USER_F_PROTOCOL_FEATURES, \ |
| "VHOST_USER_F_PROTOCOL_FEATURES: Vhost-user protocol features " |
| "negotiation supported"), |
| { -1, "" } |
| }; |
| #endif |
| |
| /* virtio/vhost-user-i2c features mapping */ |
| #ifdef CONFIG_VIRTIO_I2C_ADAPTER |
| static const qmp_virtio_feature_map_t virtio_i2c_feature_map[] = { |
| FEATURE_ENTRY(VIRTIO_I2C_F_ZERO_LENGTH_REQUEST, \ |
| "VIRTIO_I2C_F_ZERO_LEGNTH_REQUEST: Zero length requests supported"), |
| FEATURE_ENTRY(VHOST_F_LOG_ALL, \ |
| "VHOST_F_LOG_ALL: Logging write descriptors supported"), |
| FEATURE_ENTRY(VHOST_USER_F_PROTOCOL_FEATURES, \ |
| "VHOST_USER_F_PROTOCOL_FEATURES: Vhost-user protocol features " |
| "negotiation supported"), |
| { -1, "" } |
| }; |
| #endif |
| |
| /* virtio/vhost-vsock features mapping */ |
| #ifdef CONFIG_VHOST_VSOCK |
| static const qmp_virtio_feature_map_t virtio_vsock_feature_map[] = { |
| FEATURE_ENTRY(VIRTIO_VSOCK_F_SEQPACKET, \ |
| "VIRTIO_VSOCK_F_SEQPACKET: SOCK_SEQPACKET supported"), |
| FEATURE_ENTRY(VHOST_F_LOG_ALL, \ |
| "VHOST_F_LOG_ALL: Logging write descriptors supported"), |
| FEATURE_ENTRY(VHOST_USER_F_PROTOCOL_FEATURES, \ |
| "VHOST_USER_F_PROTOCOL_FEATURES: Vhost-user protocol features " |
| "negotiation supported"), |
| { -1, "" } |
| }; |
| #endif |
| |
| /* virtio-balloon features mapping */ |
| #ifdef CONFIG_VIRTIO_BALLOON |
| static const qmp_virtio_feature_map_t virtio_balloon_feature_map[] = { |
| FEATURE_ENTRY(VIRTIO_BALLOON_F_MUST_TELL_HOST, \ |
| "VIRTIO_BALLOON_F_MUST_TELL_HOST: Tell host before reclaiming " |
| "pages"), |
| FEATURE_ENTRY(VIRTIO_BALLOON_F_STATS_VQ, \ |
| "VIRTIO_BALLOON_F_STATS_VQ: Guest memory stats VQ available"), |
| FEATURE_ENTRY(VIRTIO_BALLOON_F_DEFLATE_ON_OOM, \ |
| "VIRTIO_BALLOON_F_DEFLATE_ON_OOM: Deflate balloon when guest OOM"), |
| FEATURE_ENTRY(VIRTIO_BALLOON_F_FREE_PAGE_HINT, \ |
| "VIRTIO_BALLOON_F_FREE_PAGE_HINT: VQ reporting free pages enabled"), |
| FEATURE_ENTRY(VIRTIO_BALLOON_F_PAGE_POISON, \ |
| "VIRTIO_BALLOON_F_PAGE_POISON: Guest page poisoning enabled"), |
| FEATURE_ENTRY(VIRTIO_BALLOON_F_REPORTING, \ |
| "VIRTIO_BALLOON_F_REPORTING: Page reporting VQ enabled"), |
| { -1, "" } |
| }; |
| #endif |
| |
| /* virtio-crypto features mapping */ |
| #ifdef CONFIG_VIRTIO_CRYPTO |
| static const qmp_virtio_feature_map_t virtio_crypto_feature_map[] = { |
| FEATURE_ENTRY(VHOST_F_LOG_ALL, \ |
| "VHOST_F_LOG_ALL: Logging write descriptors supported"), |
| { -1, "" } |
| }; |
| #endif |
| |
| /* virtio-iommu features mapping */ |
| #ifdef CONFIG_VIRTIO_IOMMU |
| static const qmp_virtio_feature_map_t virtio_iommu_feature_map[] = { |
| FEATURE_ENTRY(VIRTIO_IOMMU_F_INPUT_RANGE, \ |
| "VIRTIO_IOMMU_F_INPUT_RANGE: Range of available virtual addrs. " |
| "available"), |
| FEATURE_ENTRY(VIRTIO_IOMMU_F_DOMAIN_RANGE, \ |
| "VIRTIO_IOMMU_F_DOMAIN_RANGE: Number of supported domains " |
| "available"), |
| FEATURE_ENTRY(VIRTIO_IOMMU_F_MAP_UNMAP, \ |
| "VIRTIO_IOMMU_F_MAP_UNMAP: Map and unmap requests available"), |
| FEATURE_ENTRY(VIRTIO_IOMMU_F_BYPASS, \ |
| "VIRTIO_IOMMU_F_BYPASS: Endpoints not attached to domains are in " |
| "bypass mode"), |
| FEATURE_ENTRY(VIRTIO_IOMMU_F_PROBE, \ |
| "VIRTIO_IOMMU_F_PROBE: Probe requests available"), |
| FEATURE_ENTRY(VIRTIO_IOMMU_F_MMIO, \ |
| "VIRTIO_IOMMU_F_MMIO: VIRTIO_IOMMU_MAP_F_MMIO flag available"), |
| FEATURE_ENTRY(VIRTIO_IOMMU_F_BYPASS_CONFIG, \ |
| "VIRTIO_IOMMU_F_BYPASS_CONFIG: Bypass field of IOMMU config " |
| "available"), |
| { -1, "" } |
| }; |
| #endif |
| |
| /* virtio-mem features mapping */ |
| #ifdef CONFIG_VIRTIO_MEM |
| static const qmp_virtio_feature_map_t virtio_mem_feature_map[] = { |
| #ifndef CONFIG_ACPI |
| FEATURE_ENTRY(VIRTIO_MEM_F_ACPI_PXM, \ |
| "VIRTIO_MEM_F_ACPI_PXM: node_id is an ACPI PXM and is valid"), |
| #endif /* !CONFIG_ACPI */ |
| FEATURE_ENTRY(VIRTIO_MEM_F_UNPLUGGED_INACCESSIBLE, \ |
| "VIRTIO_MEM_F_UNPLUGGED_INACCESSIBLE: Unplugged memory cannot be " |
| "accessed"), |
| { -1, "" } |
| }; |
| #endif |
| |
| /* virtio-rng features mapping */ |
| #ifdef CONFIG_VIRTIO_RNG |
| static const qmp_virtio_feature_map_t virtio_rng_feature_map[] = { |
| FEATURE_ENTRY(VHOST_F_LOG_ALL, \ |
| "VHOST_F_LOG_ALL: Logging write descriptors supported"), |
| FEATURE_ENTRY(VHOST_USER_F_PROTOCOL_FEATURES, \ |
| "VHOST_USER_F_PROTOCOL_FEATURES: Vhost-user protocol features " |
| "negotiation supported"), |
| { -1, "" } |
| }; |
| #endif |
| |
| #define CONVERT_FEATURES(type, map, is_status, bitmap) \ |
| ({ \ |
| type *list = NULL; \ |
| type *node; \ |
| for (i = 0; map[i].virtio_bit != -1; i++) { \ |
| if (is_status) { \ |
| bit = map[i].virtio_bit; \ |
| } \ |
| else { \ |
| bit = 1ULL << map[i].virtio_bit; \ |
| } \ |
| if ((bitmap & bit) == 0) { \ |
| continue; \ |
| } \ |
| node = g_new0(type, 1); \ |
| node->value = g_strdup(map[i].feature_desc); \ |
| node->next = list; \ |
| list = node; \ |
| bitmap ^= bit; \ |
| } \ |
| list; \ |
| }) |
| |
| VirtioDeviceStatus *qmp_decode_status(uint8_t bitmap) |
| { |
| VirtioDeviceStatus *status; |
| uint8_t bit; |
| int i; |
| |
| status = g_new0(VirtioDeviceStatus, 1); |
| status->statuses = CONVERT_FEATURES(strList, virtio_config_status_map, |
| 1, bitmap); |
| status->has_unknown_statuses = bitmap != 0; |
| if (status->has_unknown_statuses) { |
| status->unknown_statuses = bitmap; |
| } |
| |
| return status; |
| } |
| |
| VhostDeviceProtocols *qmp_decode_protocols(uint64_t bitmap) |
| { |
| VhostDeviceProtocols *vhu_protocols; |
| uint64_t bit; |
| int i; |
| |
| vhu_protocols = g_new0(VhostDeviceProtocols, 1); |
| vhu_protocols->protocols = |
| CONVERT_FEATURES(strList, |
| vhost_user_protocol_map, 0, bitmap); |
| vhu_protocols->has_unknown_protocols = bitmap != 0; |
| if (vhu_protocols->has_unknown_protocols) { |
| vhu_protocols->unknown_protocols = bitmap; |
| } |
| |
| return vhu_protocols; |
| } |
| |
| VirtioDeviceFeatures *qmp_decode_features(uint16_t device_id, uint64_t bitmap) |
| { |
| VirtioDeviceFeatures *features; |
| uint64_t bit; |
| int i; |
| |
| features = g_new0(VirtioDeviceFeatures, 1); |
| features->has_dev_features = true; |
| |
| /* transport features */ |
| features->transports = CONVERT_FEATURES(strList, virtio_transport_map, 0, |
| bitmap); |
| |
| /* device features */ |
| switch (device_id) { |
| #ifdef CONFIG_VIRTIO_SERIAL |
| case VIRTIO_ID_CONSOLE: |
| features->dev_features = |
| CONVERT_FEATURES(strList, virtio_serial_feature_map, 0, bitmap); |
| break; |
| #endif |
| #ifdef CONFIG_VIRTIO_BLK |
| case VIRTIO_ID_BLOCK: |
| features->dev_features = |
| CONVERT_FEATURES(strList, virtio_blk_feature_map, 0, bitmap); |
| break; |
| #endif |
| #ifdef CONFIG_VIRTIO_GPU |
| case VIRTIO_ID_GPU: |
| features->dev_features = |
| CONVERT_FEATURES(strList, virtio_gpu_feature_map, 0, bitmap); |
| break; |
| #endif |
| #ifdef CONFIG_VIRTIO_NET |
| case VIRTIO_ID_NET: |
| features->dev_features = |
| CONVERT_FEATURES(strList, virtio_net_feature_map, 0, bitmap); |
| break; |
| #endif |
| #ifdef CONFIG_VIRTIO_SCSI |
| case VIRTIO_ID_SCSI: |
| features->dev_features = |
| CONVERT_FEATURES(strList, virtio_scsi_feature_map, 0, bitmap); |
| break; |
| #endif |
| #ifdef CONFIG_VIRTIO_BALLOON |
| case VIRTIO_ID_BALLOON: |
| features->dev_features = |
| CONVERT_FEATURES(strList, virtio_balloon_feature_map, 0, bitmap); |
| break; |
| #endif |
| #ifdef CONFIG_VIRTIO_IOMMU |
| case VIRTIO_ID_IOMMU: |
| features->dev_features = |
| CONVERT_FEATURES(strList, virtio_iommu_feature_map, 0, bitmap); |
| break; |
| #endif |
| #ifdef CONFIG_VIRTIO_INPUT |
| case VIRTIO_ID_INPUT: |
| features->dev_features = |
| CONVERT_FEATURES(strList, virtio_input_feature_map, 0, bitmap); |
| break; |
| #endif |
| #ifdef CONFIG_VHOST_USER_FS |
| case VIRTIO_ID_FS: |
| features->dev_features = |
| CONVERT_FEATURES(strList, virtio_fs_feature_map, 0, bitmap); |
| break; |
| #endif |
| #ifdef CONFIG_VHOST_VSOCK |
| case VIRTIO_ID_VSOCK: |
| features->dev_features = |
| CONVERT_FEATURES(strList, virtio_vsock_feature_map, 0, bitmap); |
| break; |
| #endif |
| #ifdef CONFIG_VIRTIO_CRYPTO |
| case VIRTIO_ID_CRYPTO: |
| features->dev_features = |
| CONVERT_FEATURES(strList, virtio_crypto_feature_map, 0, bitmap); |
| break; |
| #endif |
| #ifdef CONFIG_VIRTIO_MEM |
| case VIRTIO_ID_MEM: |
| features->dev_features = |
| CONVERT_FEATURES(strList, virtio_mem_feature_map, 0, bitmap); |
| break; |
| #endif |
| #ifdef CONFIG_VIRTIO_I2C_ADAPTER |
| case VIRTIO_ID_I2C_ADAPTER: |
| features->dev_features = |
| CONVERT_FEATURES(strList, virtio_i2c_feature_map, 0, bitmap); |
| break; |
| #endif |
| #ifdef CONFIG_VIRTIO_RNG |
| case VIRTIO_ID_RNG: |
| features->dev_features = |
| CONVERT_FEATURES(strList, virtio_rng_feature_map, 0, bitmap); |
| break; |
| #endif |
| /* No features */ |
| case VIRTIO_ID_9P: |
| case VIRTIO_ID_PMEM: |
| case VIRTIO_ID_IOMEM: |
| case VIRTIO_ID_RPMSG: |
| case VIRTIO_ID_CLOCK: |
| case VIRTIO_ID_MAC80211_WLAN: |
| case VIRTIO_ID_MAC80211_HWSIM: |
| case VIRTIO_ID_RPROC_SERIAL: |
| case VIRTIO_ID_MEMORY_BALLOON: |
| case VIRTIO_ID_CAIF: |
| case VIRTIO_ID_SIGNAL_DIST: |
| case VIRTIO_ID_PSTORE: |
| case VIRTIO_ID_SOUND: |
| case VIRTIO_ID_BT: |
| case VIRTIO_ID_RPMB: |
| case VIRTIO_ID_VIDEO_ENCODER: |
| case VIRTIO_ID_VIDEO_DECODER: |
| case VIRTIO_ID_SCMI: |
| case VIRTIO_ID_NITRO_SEC_MOD: |
| case VIRTIO_ID_WATCHDOG: |
| case VIRTIO_ID_CAN: |
| case VIRTIO_ID_DMABUF: |
| case VIRTIO_ID_PARAM_SERV: |
| case VIRTIO_ID_AUDIO_POLICY: |
| case VIRTIO_ID_GPIO: |
| break; |
| default: |
| g_assert_not_reached(); |
| } |
| |
| features->has_unknown_dev_features = bitmap != 0; |
| if (features->has_unknown_dev_features) { |
| features->unknown_dev_features = bitmap; |
| } |
| |
| return features; |
| } |
| |
| VirtioInfoList *qmp_x_query_virtio(Error **errp) |
| { |
| VirtioInfoList *list = NULL; |
| VirtioInfo *node; |
| VirtIODevice *vdev; |
| |
| QTAILQ_FOREACH(vdev, &virtio_list, next) { |
| DeviceState *dev = DEVICE(vdev); |
| Error *err = NULL; |
| QObject *obj = qmp_qom_get(dev->canonical_path, "realized", &err); |
| |
| if (err == NULL) { |
| GString *is_realized = qobject_to_json_pretty(obj, true); |
| /* virtio device is NOT realized, remove it from list */ |
| if (!strncmp(is_realized->str, "false", 4)) { |
| QTAILQ_REMOVE(&virtio_list, vdev, next); |
| } else { |
| node = g_new(VirtioInfo, 1); |
| node->path = g_strdup(dev->canonical_path); |
| node->name = g_strdup(vdev->name); |
| QAPI_LIST_PREPEND(list, node); |
| } |
| g_string_free(is_realized, true); |
| } |
| qobject_unref(obj); |
| } |
| |
| return list; |
| } |
| |
| VirtIODevice *qmp_find_virtio_device(const char *path) |
| { |
| VirtIODevice *vdev; |
| |
| QTAILQ_FOREACH(vdev, &virtio_list, next) { |
| DeviceState *dev = DEVICE(vdev); |
| |
| if (strcmp(dev->canonical_path, path) != 0) { |
| continue; |
| } |
| |
| Error *err = NULL; |
| QObject *obj = qmp_qom_get(dev->canonical_path, "realized", &err); |
| if (err == NULL) { |
| GString *is_realized = qobject_to_json_pretty(obj, true); |
| /* virtio device is NOT realized, remove it from list */ |
| if (!strncmp(is_realized->str, "false", 4)) { |
| g_string_free(is_realized, true); |
| qobject_unref(obj); |
| QTAILQ_REMOVE(&virtio_list, vdev, next); |
| return NULL; |
| } |
| g_string_free(is_realized, true); |
| } else { |
| /* virtio device doesn't exist in QOM tree */ |
| QTAILQ_REMOVE(&virtio_list, vdev, next); |
| qobject_unref(obj); |
| return NULL; |
| } |
| /* device exists in QOM tree & is realized */ |
| qobject_unref(obj); |
| return vdev; |
| } |
| return NULL; |
| } |
| |
| VirtioStatus *qmp_x_query_virtio_status(const char *path, Error **errp) |
| { |
| VirtIODevice *vdev; |
| VirtioStatus *status; |
| |
| vdev = qmp_find_virtio_device(path); |
| if (vdev == NULL) { |
| error_setg(errp, "Path %s is not a VirtIODevice", path); |
| return NULL; |
| } |
| |
| status = g_new0(VirtioStatus, 1); |
| status->name = g_strdup(vdev->name); |
| status->device_id = vdev->device_id; |
| status->vhost_started = vdev->vhost_started; |
| status->guest_features = qmp_decode_features(vdev->device_id, |
| vdev->guest_features); |
| status->host_features = qmp_decode_features(vdev->device_id, |
| vdev->host_features); |
| status->backend_features = qmp_decode_features(vdev->device_id, |
| vdev->backend_features); |
| |
| switch (vdev->device_endian) { |
| case VIRTIO_DEVICE_ENDIAN_LITTLE: |
| status->device_endian = g_strdup("little"); |
| break; |
| case VIRTIO_DEVICE_ENDIAN_BIG: |
| status->device_endian = g_strdup("big"); |
| break; |
| default: |
| status->device_endian = g_strdup("unknown"); |
| break; |
| } |
| |
| status->num_vqs = virtio_get_num_queues(vdev); |
| status->status = qmp_decode_status(vdev->status); |
| status->isr = vdev->isr; |
| status->queue_sel = vdev->queue_sel; |
| status->vm_running = vdev->vm_running; |
| status->broken = vdev->broken; |
| status->disabled = vdev->disabled; |
| status->use_started = vdev->use_started; |
| status->started = vdev->started; |
| status->start_on_kick = vdev->start_on_kick; |
| status->disable_legacy_check = vdev->disable_legacy_check; |
| status->bus_name = g_strdup(vdev->bus_name); |
| status->use_guest_notifier_mask = vdev->use_guest_notifier_mask; |
| |
| if (vdev->vhost_started) { |
| VirtioDeviceClass *vdc = VIRTIO_DEVICE_GET_CLASS(vdev); |
| struct vhost_dev *hdev = vdc->get_vhost(vdev); |
| |
| status->vhost_dev = g_new0(VhostStatus, 1); |
| status->vhost_dev->n_mem_sections = hdev->n_mem_sections; |
| status->vhost_dev->n_tmp_sections = hdev->n_tmp_sections; |
| status->vhost_dev->nvqs = hdev->nvqs; |
| status->vhost_dev->vq_index = hdev->vq_index; |
| status->vhost_dev->features = |
| qmp_decode_features(vdev->device_id, hdev->features); |
| status->vhost_dev->acked_features = |
| qmp_decode_features(vdev->device_id, hdev->acked_features); |
| status->vhost_dev->backend_features = |
| qmp_decode_features(vdev->device_id, hdev->backend_features); |
| status->vhost_dev->protocol_features = |
| qmp_decode_protocols(hdev->protocol_features); |
| status->vhost_dev->max_queues = hdev->max_queues; |
| status->vhost_dev->backend_cap = hdev->backend_cap; |
| status->vhost_dev->log_enabled = hdev->log_enabled; |
| status->vhost_dev->log_size = hdev->log_size; |
| } |
| |
| return status; |
| } |
| |
| VirtVhostQueueStatus *qmp_x_query_virtio_vhost_queue_status(const char *path, |
| uint16_t queue, |
| Error **errp) |
| { |
| VirtIODevice *vdev; |
| VirtVhostQueueStatus *status; |
| |
| vdev = qmp_find_virtio_device(path); |
| if (vdev == NULL) { |
| error_setg(errp, "Path %s is not a VirtIODevice", path); |
| return NULL; |
| } |
| |
| if (!vdev->vhost_started) { |
| error_setg(errp, "Error: vhost device has not started yet"); |
| return NULL; |
| } |
| |
| VirtioDeviceClass *vdc = VIRTIO_DEVICE_GET_CLASS(vdev); |
| struct vhost_dev *hdev = vdc->get_vhost(vdev); |
| |
| if (queue < hdev->vq_index || queue >= hdev->vq_index + hdev->nvqs) { |
| error_setg(errp, "Invalid vhost virtqueue number %d", queue); |
| return NULL; |
| } |
| |
| status = g_new0(VirtVhostQueueStatus, 1); |
| status->name = g_strdup(vdev->name); |
| status->kick = hdev->vqs[queue].kick; |
| status->call = hdev->vqs[queue].call; |
| status->desc = (uintptr_t)hdev->vqs[queue].desc; |
| status->avail = (uintptr_t)hdev->vqs[queue].avail; |
| status->used = (uintptr_t)hdev->vqs[queue].used; |
| status->num = hdev->vqs[queue].num; |
| status->desc_phys = hdev->vqs[queue].desc_phys; |
| status->desc_size = hdev->vqs[queue].desc_size; |
| status->avail_phys = hdev->vqs[queue].avail_phys; |
| status->avail_size = hdev->vqs[queue].avail_size; |
| status->used_phys = hdev->vqs[queue].used_phys; |
| status->used_size = hdev->vqs[queue].used_size; |
| |
| return status; |
| } |
