From: Laurent Vivier <lviv...@redhat.com> This patch implements the HMP versions of the virtio QMP commands.
Signed-off-by: Jonah Palmer <jonah.pal...@oracle.com> --- hmp-commands-info.hx | 218 ++++++++++++++++++++++++++++++ include/monitor/hmp.h | 5 + monitor/hmp-cmds.c | 358 ++++++++++++++++++++++++++++++++++++++++++++++++++ 3 files changed, 581 insertions(+) diff --git a/hmp-commands-info.hx b/hmp-commands-info.hx index 407a1da..6bf7359 100644 --- a/hmp-commands-info.hx +++ b/hmp-commands-info.hx @@ -877,3 +877,221 @@ SRST ``info sgx`` Show intel SGX information. ERST + + { + .name = "virtio", + .args_type = "", + .params = "", + .help = "List all available virtio devices", + .cmd = hmp_virtio_query, + .flags = "p", + }, + +SRST + ``info virtio`` + List all available virtio devices + + Example: + + List all available virtio devices in the machine:: + + (qemu) info virtio + /machine/peripheral/vsock0/virtio-backend [vhost-vsock] + /machine/peripheral/crypto0/virtio-backend [virtio-crypto] + /machine/peripheral-anon/device[2]/virtio-backend [virtio-scsi] + /machine/peripheral-anon/device[1]/virtio-backend [virtio-net] + /machine/peripheral-anon/device[0]/virtio-backend [virtio-serial] + +ERST + + { + .name = "virtio-status", + .args_type = "path:s", + .params = "path", + .help = "Display status of a given virtio device", + .cmd = hmp_virtio_status, + .flags = "p", + }, + +SRST + ``info virtio-status`` *path* + Display status of a given virtio device + + Example: + + Dump the status of virtio-net (vhost on):: + + (qemu) info virtio-status /machine/peripheral-anon/device[1]/virtio-backend + /machine/peripheral-anon/device[1]/virtio-backend: + device_name: virtio-net (vhost) + device_id: 1 + vhost_started: true + bus_name: (null) + broken: false + disabled: false + disable_legacy_check: false + started: true + use_started: true + start_on_kick: false + use_guest_notifier_mask: true + vm_running: true + num_vqs: 3 + queue_sel: 2 + isr: 1 + endianness: little + status: acknowledge, driver, features-ok, driver-ok + Guest features: event-idx, indirect-desc, version-1 + ctrl-mac-addr, guest-announce, ctrl-vlan, ctrl-rx, ctrl-vq, status, mrg-rxbuf, + host-ufo, host-ecn, host-tso6, host-tso4, guest-ufo, guest-ecn, guest-tso6, + guest-tso4, mac, ctrl-guest-offloads, guest-csum, csum + Host features: protocol-features, event-idx, indirect-desc, version-1, any-layout, + notify-on-empty, gso, ctrl-mac-addr, guest-announce, ctrl-rx-extra, ctrl-vlan, + ctrl-rx, ctrl-vq, status, mrg-rxbuf, host-ufo, host-ecn, host-tso6, host-tso4, + guest-ufo, guest-ecn, guest-tso6, guest-tso4, mac, ctrl-guest-offloads, + guest-csum, csum + Backend features: protocol-features, event-idx, indirect-desc, version-1, any-layout, + notify-on-empty, gso, ctrl-mac-addr, guest-announce, ctrl-rx-extra, ctrl-vlan, + ctrl-rx, ctrl-vq, status, mrg-rxbuf, host-ufo, host-ecn, host-tso6, host-tso4, + guest-ufo, guest-ecn, guest-tso6, guest-tso4, mac, ctrl-guest-offloads, + guest-csum, csum + VHost: + nvqs: 2 + vq_index: 0 + max_queues: 1 + n_mem_sections: 4 + n_tmp_sections: 4 + backend_cap: 2 + log_enabled: false + log_size: 0 + Features: event-idx, indirect-desc, iommu-platform, version-1, any-layout, + notify-on-empty, log-all, mrg-rxbuf + Acked features: event-idx, indirect-desc, version-1, mrg-rxbuf + Backend features: + Protocol features: + +ERST + + { + .name = "virtio-queue-status", + .args_type = "path:s,queue:i", + .params = "path queue", + .help = "Display status of a given virtio queue", + .cmd = hmp_virtio_queue_status, + .flags = "p", + }, + +SRST + ``info virtio-queue-status`` *path* *queue* + Display status of a given virtio queue + + Example: + + Dump the status of the 6th queue of virtio-scsi:: + + (qemu) info virtio-queue-status /machine/peripheral-anon/device[2]/virtio-backend 5 + /machine/peripheral-anon/device[2]/virtio-backend: + device_name: virtio-scsi + queue_index: 5 + inuse: 0 + used_idx: 605 + signalled_used: 605 + signalled_used_valid: true + last_avail_idx: 605 + shadow_avail_idx: 605 + VRing: + num: 256 + num_default: 256 + align: 4096 + desc: 0x000000011f0bc000 + avail: 0x000000011f0bd000 + used: 0x000000011f0bd240 + +ERST + + { + .name = "virtio-vhost-queue-status", + .args_type = "path:s,queue:i", + .params = "path queue", + .help = "Display status of a given vhost queue", + .cmd = hmp_vhost_queue_status, + .flags = "p", + }, + +SRST + ``info virtio-vhost-queue-status`` *path* *queue* + Display status of a given vhost queue + + Example: + + (qemu) info virtio-vhost-queue-status /machine/peripheral/vsock0/virtio-backend 1 + /machine/peripheral/vsock0/virtio-backend: + device_name: vhost-vsock (vhost) + kick: 0 + call: 0 + VRing: + num: 128 + desc: 0x00007f44fe5b2000 + desc_phys: 0x000000011f3fb000 + desc_size: 2048 + avail: 0x00007f44fe5b2800 + avail_phys: 0x000000011f3fb800 + avail_size: 262 + used: 0x00007f44fe5b2940 + used_phys: 0x000000011f3fb940 + used_size: 1030 + +ERST + + { + .name = "virtio-queue-element", + .args_type = "path:s,queue:i,index:i?", + .params = "path queue [index]", + .help = "Display element of a given virtio queue", + .cmd = hmp_virtio_queue_element, + .flags = "p", + }, + +SRST + ``info virtio-queue-element`` *path* *queue* [*index*] + Display element of a given virtio queue + + Example: + + Dump the information of the head element of the first queue of + virtio-net (vhost on):: + + (qemu) info virtio-queue-element /machine/peripheral-anon/device[1]/virtio-backend 0 + /machine/peripheral-anon/device[1]/virtio-backend: + device_name: virtio-net + index: 0 + desc: + ndescs: 1 + descs: addr 0x1312c8000 len 1536 (write) + avail: + flags: 0 + idx: 256 + ring: 0 + used: + flags: 0 + idx: 32 + + Since device[1] is a virtio-net device, we can see the MAC address + of the NIC in the element buffer:: + + (qemu) xp/128bx 0x1312c8000 + 00000001312c8000: 0x01 0x00 0x00 0x00 0x00 0x00 0x22 0x00 + 00000001312c8008: 0x06 0x00 0x01 0x00 0x52 0x54 0x00 0x12 + 00000001312c8010: 0x34 0x56 0xe6 0x94 0xf2 0xc1 0x51 0x2a + ... + + [root@guest: ~]# ip link show eth0 + 2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP mode + DEFAULT group default qlen 1000 + link/ether 52:54:00:12:34:56 brd ff:ff:ff:ff:ff:ff + + And we can see the MAC address of the gateway immediately after:: + + [root@guest: ~]# arp -a + gateway (192.168.53.1) at e6:94:f2:c1:51:2a [ether] on eth0 + +ERST diff --git a/include/monitor/hmp.h b/include/monitor/hmp.h index 96d0148..47446d8 100644 --- a/include/monitor/hmp.h +++ b/include/monitor/hmp.h @@ -95,6 +95,11 @@ void hmp_qom_list(Monitor *mon, const QDict *qdict); void hmp_qom_get(Monitor *mon, const QDict *qdict); void hmp_qom_set(Monitor *mon, const QDict *qdict); void hmp_info_qom_tree(Monitor *mon, const QDict *dict); +void hmp_virtio_query(Monitor *mon, const QDict *qdict); +void hmp_virtio_status(Monitor *mon, const QDict *qdict); +void hmp_virtio_queue_status(Monitor *mon, const QDict *qdict); +void hmp_vhost_queue_status(Monitor *mon, const QDict *qdict); +void hmp_virtio_queue_element(Monitor *mon, const QDict *qdict); void object_add_completion(ReadLineState *rs, int nb_args, const char *str); void object_del_completion(ReadLineState *rs, int nb_args, const char *str); void device_add_completion(ReadLineState *rs, int nb_args, const char *str); diff --git a/monitor/hmp-cmds.c b/monitor/hmp-cmds.c index 9c91bf9..343b266 100644 --- a/monitor/hmp-cmds.c +++ b/monitor/hmp-cmds.c @@ -42,6 +42,8 @@ #include "qapi/qapi-commands-run-state.h" #include "qapi/qapi-commands-tpm.h" #include "qapi/qapi-commands-ui.h" +#include "qapi/qapi-commands-virtio.h" +#include "qapi/qapi-visit-virtio.h" #include "qapi/qapi-visit-net.h" #include "qapi/qapi-visit-migration.h" #include "qapi/qmp/qdict.h" @@ -2165,3 +2167,359 @@ void hmp_info_memory_size_summary(Monitor *mon, const QDict *qdict) } hmp_handle_error(mon, err); } + +#define DUMP_FEATURES(type, field) \ + do { \ + type##FeatureList *list = features->u.field.features; \ + if (list) { \ + monitor_printf(mon, " "); \ + while (list) { \ + monitor_printf(mon, "%s", type##Feature_str(list->value));\ + list = list->next; \ + if (list != NULL) { \ + monitor_printf(mon, ", "); \ + } \ + } \ + monitor_printf(mon, "\n"); \ + } \ + } while (0) + +static void hmp_virtio_dump_protocols(Monitor *mon, + VhostDeviceProtocols *pcol) +{ + VhostProtocolFeatureList *pcol_list = pcol->features; + while (pcol_list) { + monitor_printf(mon, "%s", + VhostProtocolFeature_str(pcol_list->value)); + pcol_list = pcol_list->next; + if (pcol_list != NULL) { + monitor_printf(mon, ", "); + } + } + monitor_printf(mon, "\n"); + if (pcol->has_unknown_protocols) { + monitor_printf(mon, " unknown-protocols(0x%016"PRIx64")\n", + pcol->unknown_protocols); + } +} + +static void hmp_virtio_dump_status(Monitor *mon, + VirtioDeviceStatus *status) +{ + VirtioConfigStatusList *status_list = status->dev_status; + while (status_list) { + monitor_printf(mon, "%s", + VirtioConfigStatus_str(status_list->value)); + status_list = status_list->next; + if (status_list != NULL) { + monitor_printf(mon, ", "); + } + } + monitor_printf(mon, "\n"); + if (status->has_unknown_statuses) { + monitor_printf(mon, " unknown-statuses(0x%016"PRIx32")\n", + status->unknown_statuses); + } +} + +static void hmp_virtio_dump_features(Monitor *mon, + VirtioDeviceFeatures *features) +{ + VirtioTransportFeatureList *transport_list = features->transport; + while (transport_list) { + monitor_printf(mon, "%s", + VirtioTransportFeature_str(transport_list->value)); + transport_list = transport_list->next; + if (transport_list != NULL) { + monitor_printf(mon, ", "); + } + } + monitor_printf(mon, "\n"); + switch (features->type) { + case VIRTIO_TYPE_VIRTIO_SERIAL: + DUMP_FEATURES(VirtioSerial, virtio_serial); + break; + case VIRTIO_TYPE_VIRTIO_BLK: + DUMP_FEATURES(VirtioBlk, virtio_blk); + break; + case VIRTIO_TYPE_VIRTIO_GPU: + DUMP_FEATURES(VirtioGpu, virtio_gpu); + break; + case VIRTIO_TYPE_VIRTIO_NET: + DUMP_FEATURES(VirtioNet, virtio_net); + break; + case VIRTIO_TYPE_VIRTIO_SCSI: + DUMP_FEATURES(VirtioScsi, virtio_scsi); + break; + case VIRTIO_TYPE_VIRTIO_BALLOON: + DUMP_FEATURES(VirtioBalloon, virtio_balloon); + break; + case VIRTIO_TYPE_VIRTIO_IOMMU: + DUMP_FEATURES(VirtioIommu, virtio_iommu); + break; + case VIRTIO_TYPE_VIRTIO_INPUT: + DUMP_FEATURES(VirtioInput, virtio_input); + break; + case VIRTIO_TYPE_VHOST_USER_FS: + DUMP_FEATURES(VhostUserFs, vhost_user_fs); + break; + case VIRTIO_TYPE_VHOST_VSOCK: + DUMP_FEATURES(VhostVsock, vhost_vsock); + break; + case VIRTIO_TYPE_VIRTIO_CRYPTO: + DUMP_FEATURES(VirtioCrypto, virtio_crypto); + break; + case VIRTIO_TYPE_VIRTIO_MEM: + DUMP_FEATURES(VirtioMem, virtio_mem); + break; + default: + g_assert_not_reached(); + } + if (features->has_unknown_features) { + monitor_printf(mon, " unknown-features(0x%016"PRIx64")\n", + features->unknown_features); + } +} + +void hmp_virtio_query(Monitor *mon, const QDict *qdict) +{ + Error *err = NULL; + VirtioInfoList *list = qmp_x_query_virtio(&err); + VirtioInfoList *node; + + if (err != NULL) { + hmp_handle_error(mon, err); + return; + } + + if (list == NULL) { + monitor_printf(mon, "No VirtIO devices\n"); + return; + } + + node = list; + while (node) { + monitor_printf(mon, "%s [%s]\n", node->value->path, + node->value->type); + node = node->next; + } + qapi_free_VirtioInfoList(list); +} + +void hmp_virtio_status(Monitor *mon, const QDict *qdict) +{ + Error *err = NULL; + const char *path = qdict_get_try_str(qdict, "path"); + VirtioStatus *s = qmp_x_query_virtio_status(path, &err); + + if (err != NULL) { + hmp_handle_error(mon, err); + return; + } + + monitor_printf(mon, "%s:\n", path); + monitor_printf(mon, " device_name: %s %s\n", + s->name, s->has_vhost_dev ? "(vhost)" : ""); + monitor_printf(mon, " device_id: %d\n", s->device_id); + monitor_printf(mon, " vhost_started: %s\n", + s->vhost_started ? "true" : "false"); + monitor_printf(mon, " bus_name: %s\n", s->bus_name); + monitor_printf(mon, " broken: %s\n", + s->broken ? "true" : "false"); + monitor_printf(mon, " disabled: %s\n", + s->disabled ? "true" : "false"); + monitor_printf(mon, " disable_legacy_check: %s\n", + s->disable_legacy_check ? "true" : "false"); + monitor_printf(mon, " started: %s\n", + s->started ? "true" : "false"); + monitor_printf(mon, " use_started: %s\n", + s->use_started ? "true" : "false"); + monitor_printf(mon, " start_on_kick: %s\n", + s->start_on_kick ? "true" : "false"); + monitor_printf(mon, " use_guest_notifier_mask: %s\n", + s->use_guest_notifier_mask ? "true" : "false"); + monitor_printf(mon, " vm_running: %s\n", + s->vm_running ? "true" : "false"); + monitor_printf(mon, " num_vqs: %ld\n", s->num_vqs); + monitor_printf(mon, " queue_sel: %d\n", + s->queue_sel); + monitor_printf(mon, " isr: %d\n", s->isr); + monitor_printf(mon, " endianness: %s\n", + VirtioStatusEndianness_str(s->device_endian)); + monitor_printf(mon, " status: "); + hmp_virtio_dump_status(mon, s->status); + monitor_printf(mon, " Guest features: "); + hmp_virtio_dump_features(mon, s->guest_features); + monitor_printf(mon, " Host features: "); + hmp_virtio_dump_features(mon, s->host_features); + monitor_printf(mon, " Backend features: "); + hmp_virtio_dump_features(mon, s->backend_features); + + if (s->has_vhost_dev) { + monitor_printf(mon, " VHost:\n"); + monitor_printf(mon, " nvqs: %d\n", + s->vhost_dev->nvqs); + monitor_printf(mon, " vq_index: %ld\n", + s->vhost_dev->vq_index); + monitor_printf(mon, " max_queues: %lu\n", + s->vhost_dev->max_queues); + monitor_printf(mon, " n_mem_sections: %ld\n", + s->vhost_dev->n_mem_sections); + monitor_printf(mon, " n_tmp_sections: %ld\n", + s->vhost_dev->n_tmp_sections); + monitor_printf(mon, " backend_cap: %lu\n", + s->vhost_dev->backend_cap); + monitor_printf(mon, " log_enabled: %s\n", + s->vhost_dev->log_enabled ? "true" : "false"); + monitor_printf(mon, " log_size: %lu\n", + s->vhost_dev->log_size); + monitor_printf(mon, " Features: "); + hmp_virtio_dump_features(mon, s->vhost_dev->features); + monitor_printf(mon, " Acked features: "); + hmp_virtio_dump_features(mon, s->vhost_dev->acked_features); + monitor_printf(mon, " Backend features: "); + hmp_virtio_dump_features(mon, s->vhost_dev->backend_features); + monitor_printf(mon, " Protocol features: "); + hmp_virtio_dump_protocols(mon, s->vhost_dev->protocol_features); + } + + qapi_free_VirtioStatus(s); +} + +void hmp_vhost_queue_status(Monitor *mon, const QDict *qdict) +{ + Error *err = NULL; + const char *path = qdict_get_try_str(qdict, "path"); + int queue = qdict_get_int(qdict, "queue"); + VirtVhostQueueStatus *s = + qmp_x_query_virtio_vhost_queue_status(path, queue, &err); + + if (err != NULL) { + hmp_handle_error(mon, err); + return; + } + + monitor_printf(mon, "%s:\n", path); + monitor_printf(mon, " device_name: %s (vhost)\n", + s->device_name); + monitor_printf(mon, " kick: %ld\n", s->kick); + monitor_printf(mon, " call: %ld\n", s->call); + monitor_printf(mon, " VRing:\n"); + monitor_printf(mon, " num: %ld\n", s->num); + monitor_printf(mon, " desc: 0x%016"PRIx64"\n", s->desc); + monitor_printf(mon, " desc_phys: 0x%016"PRIx64"\n", + s->desc_phys); + monitor_printf(mon, " desc_size: %"PRId32"\n", s->desc_size); + monitor_printf(mon, " avail: 0x%016"PRIx64"\n", s->avail); + monitor_printf(mon, " avail_phys: 0x%016"PRIx64"\n", + s->avail_phys); + monitor_printf(mon, " avail_size: %"PRId32"\n", s->avail_size); + monitor_printf(mon, " used: 0x%016"PRIx64"\n", s->used); + monitor_printf(mon, " used_phys: 0x%016"PRIx64"\n", + s->used_phys); + monitor_printf(mon, " used_size: %"PRId32"\n", s->used_size); + + qapi_free_VirtVhostQueueStatus(s); +} + +void hmp_virtio_queue_status(Monitor *mon, const QDict *qdict) +{ + Error *err = NULL; + const char *path = qdict_get_try_str(qdict, "path"); + int queue = qdict_get_int(qdict, "queue"); + VirtQueueStatus *s = qmp_x_query_virtio_queue_status(path, queue, &err); + + if (err != NULL) { + hmp_handle_error(mon, err); + return; + } + + monitor_printf(mon, "%s:\n", path); + monitor_printf(mon, " device_name: %s\n", s->device_name); + monitor_printf(mon, " queue_index: %d\n", s->queue_index); + monitor_printf(mon, " inuse: %d\n", s->inuse); + monitor_printf(mon, " used_idx: %d\n", s->used_idx); + monitor_printf(mon, " signalled_used: %d\n", + s->signalled_used); + monitor_printf(mon, " signalled_used_valid: %s\n", + s->signalled_used_valid ? "true" : "false"); + if (s->has_last_avail_idx) { + monitor_printf(mon, " last_avail_idx: %d\n", + s->last_avail_idx); + } + if (s->has_shadow_avail_idx) { + monitor_printf(mon, " shadow_avail_idx: %d\n", + s->shadow_avail_idx); + } + monitor_printf(mon, " VRing:\n"); + monitor_printf(mon, " num: %"PRId32"\n", s->vring_num); + monitor_printf(mon, " num_default: %"PRId32"\n", + s->vring_num_default); + monitor_printf(mon, " align: %"PRId32"\n", + s->vring_align); + monitor_printf(mon, " desc: 0x%016"PRIx64"\n", + s->vring_desc); + monitor_printf(mon, " avail: 0x%016"PRIx64"\n", + s->vring_avail); + monitor_printf(mon, " used: 0x%016"PRIx64"\n", + s->vring_used); + + qapi_free_VirtQueueStatus(s); +} + +void hmp_virtio_queue_element(Monitor *mon, const QDict *qdict) +{ + Error *err = NULL; + const char *path = qdict_get_try_str(qdict, "path"); + int queue = qdict_get_int(qdict, "queue"); + int index = qdict_get_try_int(qdict, "index", -1); + VirtioQueueElement *e; + VirtioRingDescList *list; + + e = qmp_x_query_virtio_queue_element(path, queue, index != -1, + index, &err); + if (err != NULL) { + hmp_handle_error(mon, err); + return; + } + + monitor_printf(mon, "%s:\n", path); + monitor_printf(mon, " device_name: %s\n", e->device_name); + monitor_printf(mon, " index: %d\n", e->index); + monitor_printf(mon, " desc:\n"); + monitor_printf(mon, " ndescs: %d\n", e->ndescs); + monitor_printf(mon, " descs: "); + + list = e->descs; + while (list) { + monitor_printf(mon, "addr 0x%"PRIx64" len %d", list->value->addr, + list->value->len); + if (list->value->flags) { + VirtioRingDescFlagsList *flag = list->value->flags; + monitor_printf(mon, " ("); + while (flag) { + monitor_printf(mon, "%s", + VirtioRingDescFlags_str(flag->value)); + flag = flag->next; + if (flag) { + monitor_printf(mon, ", "); + } + } + monitor_printf(mon, ")"); + } + list = list->next; + if (list) { + monitor_printf(mon, ", "); + } + } + monitor_printf(mon, "\n"); + monitor_printf(mon, " avail:\n"); + monitor_printf(mon, " flags: %d\n", e->avail->flags); + monitor_printf(mon, " idx: %d\n", e->avail->idx); + monitor_printf(mon, " ring: %d\n", e->avail->ring); + monitor_printf(mon, " used:\n"); + monitor_printf(mon, " flags: %d\n", e->used->flags); + monitor_printf(mon, " idx: %d\n", e->used->idx); + + qapi_free_VirtioQueueElement(e); +} -- 1.8.3.1