diff options
Diffstat (limited to 'monitor')
| -rw-r--r-- | monitor/hmp-cmds.c | 782 | ||||
| -rw-r--r-- | monitor/misc.c | 1 |
2 files changed, 1 insertions, 782 deletions
diff --git a/monitor/hmp-cmds.c b/monitor/hmp-cmds.c index 6fd7aca..1c69d51 100644 --- a/monitor/hmp-cmds.c +++ b/monitor/hmp-cmds.c @@ -47,9 +47,6 @@ #include "qapi/string-output-visitor.h" #include "qom/object_interfaces.h" #include "ui/console.h" -#include "block/nbd.h" -#include "block/qapi.h" -#include "qemu-io.h" #include "qemu/cutils.h" #include "qemu/error-report.h" #include "exec/ramlist.h" @@ -472,213 +469,6 @@ void hmp_info_migrate_cache_size(Monitor *mon, const QDict *qdict) qmp_query_migrate_cache_size(NULL) >> 10); } -static void print_block_info(Monitor *mon, BlockInfo *info, - BlockDeviceInfo *inserted, bool verbose) -{ - ImageInfo *image_info; - - assert(!info || !info->has_inserted || info->inserted == inserted); - - if (info && *info->device) { - monitor_printf(mon, "%s", info->device); - if (inserted && inserted->has_node_name) { - monitor_printf(mon, " (%s)", inserted->node_name); - } - } else { - assert(info || inserted); - monitor_printf(mon, "%s", - inserted && inserted->has_node_name ? inserted->node_name - : info && info->has_qdev ? info->qdev - : "<anonymous>"); - } - - if (inserted) { - monitor_printf(mon, ": %s (%s%s%s)\n", - inserted->file, - inserted->drv, - inserted->ro ? ", read-only" : "", - inserted->encrypted ? ", encrypted" : ""); - } else { - monitor_printf(mon, ": [not inserted]\n"); - } - - if (info) { - if (info->has_qdev) { - monitor_printf(mon, " Attached to: %s\n", info->qdev); - } - if (info->has_io_status && info->io_status != BLOCK_DEVICE_IO_STATUS_OK) { - monitor_printf(mon, " I/O status: %s\n", - BlockDeviceIoStatus_str(info->io_status)); - } - - if (info->removable) { - monitor_printf(mon, " Removable device: %slocked, tray %s\n", - info->locked ? "" : "not ", - info->tray_open ? "open" : "closed"); - } - } - - - if (!inserted) { - return; - } - - monitor_printf(mon, " Cache mode: %s%s%s\n", - inserted->cache->writeback ? "writeback" : "writethrough", - inserted->cache->direct ? ", direct" : "", - inserted->cache->no_flush ? ", ignore flushes" : ""); - - if (inserted->has_backing_file) { - monitor_printf(mon, - " Backing file: %s " - "(chain depth: %" PRId64 ")\n", - inserted->backing_file, - inserted->backing_file_depth); - } - - if (inserted->detect_zeroes != BLOCKDEV_DETECT_ZEROES_OPTIONS_OFF) { - monitor_printf(mon, " Detect zeroes: %s\n", - BlockdevDetectZeroesOptions_str(inserted->detect_zeroes)); - } - - if (inserted->bps || inserted->bps_rd || inserted->bps_wr || - inserted->iops || inserted->iops_rd || inserted->iops_wr) - { - monitor_printf(mon, " I/O throttling: bps=%" PRId64 - " bps_rd=%" PRId64 " bps_wr=%" PRId64 - " bps_max=%" PRId64 - " bps_rd_max=%" PRId64 - " bps_wr_max=%" PRId64 - " iops=%" PRId64 " iops_rd=%" PRId64 - " iops_wr=%" PRId64 - " iops_max=%" PRId64 - " iops_rd_max=%" PRId64 - " iops_wr_max=%" PRId64 - " iops_size=%" PRId64 - " group=%s\n", - inserted->bps, - inserted->bps_rd, - inserted->bps_wr, - inserted->bps_max, - inserted->bps_rd_max, - inserted->bps_wr_max, - inserted->iops, - inserted->iops_rd, - inserted->iops_wr, - inserted->iops_max, - inserted->iops_rd_max, - inserted->iops_wr_max, - inserted->iops_size, - inserted->group); - } - - if (verbose) { - monitor_printf(mon, "\nImages:\n"); - image_info = inserted->image; - while (1) { - bdrv_image_info_dump(image_info); - if (image_info->has_backing_image) { - image_info = image_info->backing_image; - } else { - break; - } - } - } -} - -void hmp_info_block(Monitor *mon, const QDict *qdict) -{ - BlockInfoList *block_list, *info; - BlockDeviceInfoList *blockdev_list, *blockdev; - const char *device = qdict_get_try_str(qdict, "device"); - bool verbose = qdict_get_try_bool(qdict, "verbose", false); - bool nodes = qdict_get_try_bool(qdict, "nodes", false); - bool printed = false; - - /* Print BlockBackend information */ - if (!nodes) { - block_list = qmp_query_block(NULL); - } else { - block_list = NULL; - } - - for (info = block_list; info; info = info->next) { - if (device && strcmp(device, info->value->device)) { - continue; - } - - if (info != block_list) { - monitor_printf(mon, "\n"); - } - - print_block_info(mon, info->value, info->value->has_inserted - ? info->value->inserted : NULL, - verbose); - printed = true; - } - - qapi_free_BlockInfoList(block_list); - - if ((!device && !nodes) || printed) { - return; - } - - /* Print node information */ - blockdev_list = qmp_query_named_block_nodes(false, false, NULL); - for (blockdev = blockdev_list; blockdev; blockdev = blockdev->next) { - assert(blockdev->value->has_node_name); - if (device && strcmp(device, blockdev->value->node_name)) { - continue; - } - - if (blockdev != blockdev_list) { - monitor_printf(mon, "\n"); - } - - print_block_info(mon, NULL, blockdev->value, verbose); - } - qapi_free_BlockDeviceInfoList(blockdev_list); -} - -void hmp_info_blockstats(Monitor *mon, const QDict *qdict) -{ - BlockStatsList *stats_list, *stats; - - stats_list = qmp_query_blockstats(false, false, NULL); - - for (stats = stats_list; stats; stats = stats->next) { - if (!stats->value->has_device) { - continue; - } - - monitor_printf(mon, "%s:", stats->value->device); - monitor_printf(mon, " rd_bytes=%" PRId64 - " wr_bytes=%" PRId64 - " rd_operations=%" PRId64 - " wr_operations=%" PRId64 - " flush_operations=%" PRId64 - " wr_total_time_ns=%" PRId64 - " rd_total_time_ns=%" PRId64 - " flush_total_time_ns=%" PRId64 - " rd_merged=%" PRId64 - " wr_merged=%" PRId64 - " idle_time_ns=%" PRId64 - "\n", - stats->value->stats->rd_bytes, - stats->value->stats->wr_bytes, - stats->value->stats->rd_operations, - stats->value->stats->wr_operations, - stats->value->stats->flush_operations, - stats->value->stats->wr_total_time_ns, - stats->value->stats->rd_total_time_ns, - stats->value->stats->flush_total_time_ns, - stats->value->stats->rd_merged, - stats->value->stats->wr_merged, - stats->value->stats->idle_time_ns); - } - - qapi_free_BlockStatsList(stats_list); -} #ifdef CONFIG_VNC /* Helper for hmp_info_vnc_clients, _servers */ @@ -1058,44 +848,6 @@ void hmp_info_pci(Monitor *mon, const QDict *qdict) qapi_free_PciInfoList(info_list); } -void hmp_info_block_jobs(Monitor *mon, const QDict *qdict) -{ - BlockJobInfoList *list; - Error *err = NULL; - - list = qmp_query_block_jobs(&err); - assert(!err); - - if (!list) { - monitor_printf(mon, "No active jobs\n"); - return; - } - - while (list) { - if (strcmp(list->value->type, "stream") == 0) { - monitor_printf(mon, "Streaming device %s: Completed %" PRId64 - " of %" PRId64 " bytes, speed limit %" PRId64 - " bytes/s\n", - list->value->device, - list->value->offset, - list->value->len, - list->value->speed); - } else { - monitor_printf(mon, "Type %s, device %s: Completed %" PRId64 - " of %" PRId64 " bytes, speed limit %" PRId64 - " bytes/s\n", - list->value->type, - list->value->device, - list->value->offset, - list->value->len, - list->value->speed); - } - list = list->next; - } - - qapi_free_BlockJobInfoList(list); -} - void hmp_info_tpm(Monitor *mon, const QDict *qdict) { TPMInfoList *info_list, *info; @@ -1313,16 +1065,6 @@ void hmp_set_link(Monitor *mon, const QDict *qdict) hmp_handle_error(mon, err); } -void hmp_block_passwd(Monitor *mon, const QDict *qdict) -{ - const char *device = qdict_get_str(qdict, "device"); - const char *password = qdict_get_str(qdict, "password"); - Error *err = NULL; - - qmp_block_passwd(true, device, false, NULL, password, &err); - hmp_handle_error(mon, err); -} - void hmp_balloon(Monitor *mon, const QDict *qdict) { int64_t value = qdict_get_int(qdict, "value"); @@ -1332,121 +1074,6 @@ void hmp_balloon(Monitor *mon, const QDict *qdict) hmp_handle_error(mon, err); } -void hmp_block_resize(Monitor *mon, const QDict *qdict) -{ - const char *device = qdict_get_str(qdict, "device"); - int64_t size = qdict_get_int(qdict, "size"); - Error *err = NULL; - - qmp_block_resize(true, device, false, NULL, size, &err); - hmp_handle_error(mon, err); -} - -void hmp_drive_mirror(Monitor *mon, const QDict *qdict) -{ - const char *filename = qdict_get_str(qdict, "target"); - const char *format = qdict_get_try_str(qdict, "format"); - bool reuse = qdict_get_try_bool(qdict, "reuse", false); - bool full = qdict_get_try_bool(qdict, "full", false); - Error *err = NULL; - DriveMirror mirror = { - .device = (char *)qdict_get_str(qdict, "device"), - .target = (char *)filename, - .has_format = !!format, - .format = (char *)format, - .sync = full ? MIRROR_SYNC_MODE_FULL : MIRROR_SYNC_MODE_TOP, - .has_mode = true, - .mode = reuse ? NEW_IMAGE_MODE_EXISTING : NEW_IMAGE_MODE_ABSOLUTE_PATHS, - .unmap = true, - }; - - if (!filename) { - error_setg(&err, QERR_MISSING_PARAMETER, "target"); - hmp_handle_error(mon, err); - return; - } - qmp_drive_mirror(&mirror, &err); - hmp_handle_error(mon, err); -} - -void hmp_drive_backup(Monitor *mon, const QDict *qdict) -{ - const char *device = qdict_get_str(qdict, "device"); - const char *filename = qdict_get_str(qdict, "target"); - const char *format = qdict_get_try_str(qdict, "format"); - bool reuse = qdict_get_try_bool(qdict, "reuse", false); - bool full = qdict_get_try_bool(qdict, "full", false); - bool compress = qdict_get_try_bool(qdict, "compress", false); - Error *err = NULL; - DriveBackup backup = { - .device = (char *)device, - .target = (char *)filename, - .has_format = !!format, - .format = (char *)format, - .sync = full ? MIRROR_SYNC_MODE_FULL : MIRROR_SYNC_MODE_TOP, - .has_mode = true, - .mode = reuse ? NEW_IMAGE_MODE_EXISTING : NEW_IMAGE_MODE_ABSOLUTE_PATHS, - .has_compress = !!compress, - .compress = compress, - }; - - if (!filename) { - error_setg(&err, QERR_MISSING_PARAMETER, "target"); - hmp_handle_error(mon, err); - return; - } - - qmp_drive_backup(&backup, &err); - hmp_handle_error(mon, err); -} - -void hmp_snapshot_blkdev(Monitor *mon, const QDict *qdict) -{ - const char *device = qdict_get_str(qdict, "device"); - const char *filename = qdict_get_try_str(qdict, "snapshot-file"); - const char *format = qdict_get_try_str(qdict, "format"); - bool reuse = qdict_get_try_bool(qdict, "reuse", false); - enum NewImageMode mode; - Error *err = NULL; - - if (!filename) { - /* In the future, if 'snapshot-file' is not specified, the snapshot - will be taken internally. Today it's actually required. */ - error_setg(&err, QERR_MISSING_PARAMETER, "snapshot-file"); - hmp_handle_error(mon, err); - return; - } - - mode = reuse ? NEW_IMAGE_MODE_EXISTING : NEW_IMAGE_MODE_ABSOLUTE_PATHS; - qmp_blockdev_snapshot_sync(true, device, false, NULL, - filename, false, NULL, - !!format, format, - true, mode, &err); - hmp_handle_error(mon, err); -} - -void hmp_snapshot_blkdev_internal(Monitor *mon, const QDict *qdict) -{ - const char *device = qdict_get_str(qdict, "device"); - const char *name = qdict_get_str(qdict, "name"); - Error *err = NULL; - - qmp_blockdev_snapshot_internal_sync(device, name, &err); - hmp_handle_error(mon, err); -} - -void hmp_snapshot_delete_blkdev_internal(Monitor *mon, const QDict *qdict) -{ - const char *device = qdict_get_str(qdict, "device"); - const char *name = qdict_get_str(qdict, "name"); - const char *id = qdict_get_try_str(qdict, "id"); - Error *err = NULL; - - qmp_blockdev_snapshot_delete_internal_sync(device, !!id, id, - true, name, &err); - hmp_handle_error(mon, err); -} - void hmp_loadvm(Monitor *mon, const QDict *qdict) { int saved_vm_running = runstate_is_running(); @@ -1483,148 +1110,6 @@ void hmp_delvm(Monitor *mon, const QDict *qdict) hmp_handle_error(mon, err); } -void hmp_info_snapshots(Monitor *mon, const QDict *qdict) -{ - BlockDriverState *bs, *bs1; - BdrvNextIterator it1; - QEMUSnapshotInfo *sn_tab, *sn; - bool no_snapshot = true; - int nb_sns, i; - int total; - int *global_snapshots; - AioContext *aio_context; - - typedef struct SnapshotEntry { - QEMUSnapshotInfo sn; - QTAILQ_ENTRY(SnapshotEntry) next; - } SnapshotEntry; - - typedef struct ImageEntry { - const char *imagename; - QTAILQ_ENTRY(ImageEntry) next; - QTAILQ_HEAD(, SnapshotEntry) snapshots; - } ImageEntry; - - QTAILQ_HEAD(, ImageEntry) image_list = - QTAILQ_HEAD_INITIALIZER(image_list); - - ImageEntry *image_entry, *next_ie; - SnapshotEntry *snapshot_entry; - - bs = bdrv_all_find_vmstate_bs(); - if (!bs) { - monitor_printf(mon, "No available block device supports snapshots\n"); - return; - } - aio_context = bdrv_get_aio_context(bs); - - aio_context_acquire(aio_context); - nb_sns = bdrv_snapshot_list(bs, &sn_tab); - aio_context_release(aio_context); - - if (nb_sns < 0) { - monitor_printf(mon, "bdrv_snapshot_list: error %d\n", nb_sns); - return; - } - - for (bs1 = bdrv_first(&it1); bs1; bs1 = bdrv_next(&it1)) { - int bs1_nb_sns = 0; - ImageEntry *ie; - SnapshotEntry *se; - AioContext *ctx = bdrv_get_aio_context(bs1); - - aio_context_acquire(ctx); - if (bdrv_can_snapshot(bs1)) { - sn = NULL; - bs1_nb_sns = bdrv_snapshot_list(bs1, &sn); - if (bs1_nb_sns > 0) { - no_snapshot = false; - ie = g_new0(ImageEntry, 1); - ie->imagename = bdrv_get_device_name(bs1); - QTAILQ_INIT(&ie->snapshots); - QTAILQ_INSERT_TAIL(&image_list, ie, next); - for (i = 0; i < bs1_nb_sns; i++) { - se = g_new0(SnapshotEntry, 1); - se->sn = sn[i]; - QTAILQ_INSERT_TAIL(&ie->snapshots, se, next); - } - } - g_free(sn); - } - aio_context_release(ctx); - } - - if (no_snapshot) { - monitor_printf(mon, "There is no snapshot available.\n"); - return; - } - - global_snapshots = g_new0(int, nb_sns); - total = 0; - for (i = 0; i < nb_sns; i++) { - SnapshotEntry *next_sn; - if (bdrv_all_find_snapshot(sn_tab[i].name, &bs1) == 0) { - global_snapshots[total] = i; - total++; - QTAILQ_FOREACH(image_entry, &image_list, next) { - QTAILQ_FOREACH_SAFE(snapshot_entry, &image_entry->snapshots, - next, next_sn) { - if (!strcmp(sn_tab[i].name, snapshot_entry->sn.name)) { - QTAILQ_REMOVE(&image_entry->snapshots, snapshot_entry, - next); - g_free(snapshot_entry); - } - } - } - } - } - - monitor_printf(mon, "List of snapshots present on all disks:\n"); - - if (total > 0) { - bdrv_snapshot_dump(NULL); - monitor_printf(mon, "\n"); - for (i = 0; i < total; i++) { - sn = &sn_tab[global_snapshots[i]]; - /* The ID is not guaranteed to be the same on all images, so - * overwrite it. - */ - pstrcpy(sn->id_str, sizeof(sn->id_str), "--"); - bdrv_snapshot_dump(sn); - monitor_printf(mon, "\n"); - } - } else { - monitor_printf(mon, "None\n"); - } - - QTAILQ_FOREACH(image_entry, &image_list, next) { - if (QTAILQ_EMPTY(&image_entry->snapshots)) { - continue; - } - monitor_printf(mon, - "\nList of partial (non-loadable) snapshots on '%s':\n", - image_entry->imagename); - bdrv_snapshot_dump(NULL); - monitor_printf(mon, "\n"); - QTAILQ_FOREACH(snapshot_entry, &image_entry->snapshots, next) { - bdrv_snapshot_dump(&snapshot_entry->sn); - monitor_printf(mon, "\n"); - } - } - - QTAILQ_FOREACH_SAFE(image_entry, &image_list, next, next_ie) { - SnapshotEntry *next_sn; - QTAILQ_FOREACH_SAFE(snapshot_entry, &image_entry->snapshots, next, - next_sn) { - g_free(snapshot_entry); - } - g_free(image_entry); - } - g_free(sn_tab); - g_free(global_snapshots); - -} - void hmp_announce_self(Monitor *mon, const QDict *qdict) { const char *interfaces_str = qdict_get_try_str(qdict, "interfaces"); @@ -1946,15 +1431,6 @@ void hmp_expire_password(Monitor *mon, const QDict *qdict) hmp_handle_error(mon, err); } -void hmp_eject(Monitor *mon, const QDict *qdict) -{ - bool force = qdict_get_try_bool(qdict, "force", false); - const char *device = qdict_get_str(qdict, "device"); - Error *err = NULL; - - qmp_eject(true, device, false, NULL, true, force, &err); - hmp_handle_error(mon, err); -} #ifdef CONFIG_VNC static void hmp_change_read_arg(void *opaque, const char *password, @@ -2012,101 +1488,6 @@ void hmp_change(Monitor *mon, const QDict *qdict) hmp_handle_error(mon, err); } -void hmp_block_set_io_throttle(Monitor *mon, const QDict *qdict) -{ - Error *err = NULL; - char *device = (char *) qdict_get_str(qdict, "device"); - BlockIOThrottle throttle = { - .bps = qdict_get_int(qdict, "bps"), - .bps_rd = qdict_get_int(qdict, "bps_rd"), - .bps_wr = qdict_get_int(qdict, "bps_wr"), - .iops = qdict_get_int(qdict, "iops"), - .iops_rd = qdict_get_int(qdict, "iops_rd"), - .iops_wr = qdict_get_int(qdict, "iops_wr"), - }; - - /* qmp_block_set_io_throttle has separate parameters for the - * (deprecated) block device name and the qdev ID but the HMP - * version has only one, so we must decide which one to pass. */ - if (blk_by_name(device)) { - throttle.has_device = true; - throttle.device = device; - } else { - throttle.has_id = true; - throttle.id = device; - } - - qmp_block_set_io_throttle(&throttle, &err); - hmp_handle_error(mon, err); -} - -void hmp_block_stream(Monitor *mon, const QDict *qdict) -{ - Error *error = NULL; - const char *device = qdict_get_str(qdict, "device"); - const char *base = qdict_get_try_str(qdict, "base"); - int64_t speed = qdict_get_try_int(qdict, "speed", 0); - - qmp_block_stream(true, device, device, base != NULL, base, false, NULL, - false, NULL, qdict_haskey(qdict, "speed"), speed, true, - BLOCKDEV_ON_ERROR_REPORT, false, false, false, false, - &error); - - hmp_handle_error(mon, error); -} - -void hmp_block_job_set_speed(Monitor *mon, const QDict *qdict) -{ - Error *error = NULL; - const char *device = qdict_get_str(qdict, "device"); - int64_t value = qdict_get_int(qdict, "speed"); - - qmp_block_job_set_speed(device, value, &error); - - hmp_handle_error(mon, error); -} - -void hmp_block_job_cancel(Monitor *mon, const QDict *qdict) -{ - Error *error = NULL; - const char *device = qdict_get_str(qdict, "device"); - bool force = qdict_get_try_bool(qdict, "force", false); - - qmp_block_job_cancel(device, true, force, &error); - - hmp_handle_error(mon, error); -} - -void hmp_block_job_pause(Monitor *mon, const QDict *qdict) -{ - Error *error = NULL; - const char *device = qdict_get_str(qdict, "device"); - - qmp_block_job_pause(device, &error); - - hmp_handle_error(mon, error); -} - -void hmp_block_job_resume(Monitor *mon, const QDict *qdict) -{ - Error *error = NULL; - const char *device = qdict_get_str(qdict, "device"); - - qmp_block_job_resume(device, &error); - - hmp_handle_error(mon, error); -} - -void hmp_block_job_complete(Monitor *mon, const QDict *qdict) -{ - Error *error = NULL; - const char *device = qdict_get_str(qdict, "device"); - - qmp_block_job_complete(device, &error); - - hmp_handle_error(mon, error); -} - typedef struct HMPMigrationStatus { QEMUTimer *timer; @@ -2333,105 +1714,6 @@ void hmp_screendump(Monitor *mon, const QDict *qdict) hmp_handle_error(mon, err); } -void hmp_nbd_server_start(Monitor *mon, const QDict *qdict) -{ - const char *uri = qdict_get_str(qdict, "uri"); - bool writable = qdict_get_try_bool(qdict, "writable", false); - bool all = qdict_get_try_bool(qdict, "all", false); - Error *local_err = NULL; - BlockInfoList *block_list, *info; - SocketAddress *addr; - BlockExportNbd export; - - if (writable && !all) { - error_setg(&local_err, "-w only valid together with -a"); - goto exit; - } - - /* First check if the address is valid and start the server. */ - addr = socket_parse(uri, &local_err); - if (local_err != NULL) { - goto exit; - } - - nbd_server_start(addr, NULL, NULL, &local_err); - qapi_free_SocketAddress(addr); - if (local_err != NULL) { - goto exit; - } - - if (!all) { - return; - } - - /* Then try adding all block devices. If one fails, close all and - * exit. - */ - block_list = qmp_query_block(NULL); - - for (info = block_list; info; info = info->next) { - if (!info->value->has_inserted) { - continue; - } - - export = (BlockExportNbd) { - .device = info->value->device, - .has_writable = true, - .writable = writable, - }; - - qmp_nbd_server_add(&export, &local_err); - - if (local_err != NULL) { - qmp_nbd_server_stop(NULL); - break; - } - } - - qapi_free_BlockInfoList(block_list); - -exit: - hmp_handle_error(mon, local_err); -} - -void hmp_nbd_server_add(Monitor *mon, const QDict *qdict) -{ - const char *device = qdict_get_str(qdict, "device"); - const char *name = qdict_get_try_str(qdict, "name"); - bool writable = qdict_get_try_bool(qdict, "writable", false); - Error *local_err = NULL; - - BlockExportNbd export = { - .device = (char *) device, - .has_name = !!name, - .name = (char *) name, - .has_writable = true, - .writable = writable, - }; - - qmp_nbd_server_add(&export, &local_err); - hmp_handle_error(mon, local_err); -} - -void hmp_nbd_server_remove(Monitor *mon, const QDict *qdict) -{ - const char *name = qdict_get_str(qdict, "name"); - bool force = qdict_get_try_bool(qdict, "force", false); - Error *err = NULL; - - /* Rely on NBD_SERVER_REMOVE_MODE_SAFE being the default */ - qmp_nbd_server_remove(name, force, NBD_SERVER_REMOVE_MODE_HARD, &err); - hmp_handle_error(mon, err); -} - -void hmp_nbd_server_stop(Monitor *mon, const QDict *qdict) -{ - Error *err = NULL; - - qmp_nbd_server_stop(&err); - hmp_handle_error(mon, err); -} - void hmp_chardev_add(Monitor *mon, const QDict *qdict) { const char *args = qdict_get_str(qdict, "args"); @@ -2498,70 +1780,6 @@ void hmp_chardev_send_break(Monitor *mon, const QDict *qdict) hmp_handle_error(mon, local_err); } -void hmp_qemu_io(Monitor *mon, const QDict *qdict) -{ - BlockBackend *blk; - BlockBackend *local_blk = NULL; - bool qdev = qdict_get_try_bool(qdict, "qdev", false); - const char* device = qdict_get_str(qdict, "device"); - const char* command = qdict_get_str(qdict, "command"); - Error *err = NULL; - int ret; - - if (qdev) { - blk = blk_by_qdev_id(device, &err); - if (!blk) { - goto fail; - } - } else { - blk = blk_by_name(device); - if (!blk) { - BlockDriverState *bs = bdrv_lookup_bs(NULL, device, &err); - if (bs) { - blk = local_blk = blk_new(bdrv_get_aio_context(bs), - 0, BLK_PERM_ALL); - ret = blk_insert_bs(blk, bs, &err); - if (ret < 0) { - goto fail; - } - } else { - goto fail; - } - } - } - - /* - * Notably absent: Proper permission management. This is sad, but it seems - * almost impossible to achieve without changing the semantics and thereby - * limiting the use cases of the qemu-io HMP command. - * - * In an ideal world we would unconditionally create a new BlockBackend for - * qemuio_command(), but we have commands like 'reopen' and want them to - * take effect on the exact BlockBackend whose name the user passed instead - * of just on a temporary copy of it. - * - * Another problem is that deleting the temporary BlockBackend involves - * draining all requests on it first, but some qemu-iotests cases want to - * issue multiple aio_read/write requests and expect them to complete in - * the background while the monitor has already returned. - * - * This is also what prevents us from saving the original permissions and - * restoring them later: We can't revoke permissions until all requests - * have completed, and we don't know when that is nor can we really let - * anything else run before we have revoken them to avoid race conditions. - * - * What happens now is that command() in qemu-io-cmds.c can extend the - * permissions if necessary for the qemu-io command. And they simply stay - * extended, possibly resulting in a read-only guest device keeping write - * permissions. Ugly, but it appears to be the lesser evil. - */ - qemuio_command(blk, command); - -fail: - blk_unref(local_blk); - hmp_handle_error(mon, err); -} - void hmp_object_del(Monitor *mon, const QDict *qdict) { const char *id = qdict_get_str(qdict, "id"); diff --git a/monitor/misc.c b/monitor/misc.c index 1748ab3..c3bc34c 100644 --- a/monitor/misc.c +++ b/monitor/misc.c @@ -66,6 +66,7 @@ #include "qemu/option.h" #include "qemu/thread.h" #include "block/qapi.h" +#include "block/block-hmp-cmds.h" #include "qapi/qapi-commands-char.h" #include "qapi/qapi-commands-control.h" #include "qapi/qapi-commands-migration.h" |