]> Git Repo - qemu.git/blobdiff - hmp.c
Merge remote-tracking branch 'ehabkost/tags/numa-pull-request' into staging
[qemu.git] / hmp.c
diff --git a/hmp.c b/hmp.c
index d51023667753d2b3b97c2204196712a4f2da3089..20f5daba5e042ebc6993c633980bd9a88d1b518d 100644 (file)
--- a/hmp.c
+++ b/hmp.c
@@ -19,6 +19,8 @@
 #include "net/eth.h"
 #include "sysemu/char.h"
 #include "sysemu/block-backend.h"
+#include "sysemu/sysemu.h"
+#include "qemu/config-file.h"
 #include "qemu/option.h"
 #include "qemu/timer.h"
 #include "qmp-commands.h"
 #include "monitor/qdev.h"
 #include "qapi/opts-visitor.h"
 #include "qapi/qmp/qerror.h"
+#include "qapi/string-input-visitor.h"
 #include "qapi/string-output-visitor.h"
 #include "qapi/util.h"
 #include "qapi-visit.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"
+#include "hw/intc/intc.h"
 
 #ifdef CONFIG_SPICE
 #include <spice/enums.h>
@@ -168,8 +175,15 @@ void hmp_info_migrate(Monitor *mon, const QDict *qdict)
     }
 
     if (info->has_status) {
-        monitor_printf(mon, "Migration status: %s\n",
+        monitor_printf(mon, "Migration status: %s",
                        MigrationStatus_lookup[info->status]);
+        if (info->status == MIGRATION_STATUS_FAILED &&
+            info->has_error_desc) {
+            monitor_printf(mon, " (%s)\n", info->error_desc);
+        } else {
+            monitor_printf(mon, "\n");
+        }
+
         monitor_printf(mon, "total time: %" PRIu64 " milliseconds\n",
                        info->total_time);
         if (info->has_expected_downtime) {
@@ -205,10 +219,17 @@ void hmp_info_migrate(Monitor *mon, const QDict *qdict)
                        info->ram->normal_bytes >> 10);
         monitor_printf(mon, "dirty sync count: %" PRIu64 "\n",
                        info->ram->dirty_sync_count);
+        monitor_printf(mon, "page size: %" PRIu64 " kbytes\n",
+                       info->ram->page_size >> 10);
+
         if (info->ram->dirty_pages_rate) {
             monitor_printf(mon, "dirty pages rate: %" PRIu64 " pages\n",
                            info->ram->dirty_pages_rate);
         }
+        if (info->ram->postcopy_requests) {
+            monitor_printf(mon, "postcopy request count: %" PRIu64 "\n",
+                           info->ram->postcopy_requests);
+        }
     }
 
     if (info->has_disk) {
@@ -235,9 +256,9 @@ void hmp_info_migrate(Monitor *mon, const QDict *qdict)
                        info->xbzrle_cache->overflow);
     }
 
-    if (info->has_x_cpu_throttle_percentage) {
+    if (info->has_cpu_throttle_percentage) {
         monitor_printf(mon, "cpu throttle percentage: %" PRIu64 "\n",
-                       info->x_cpu_throttle_percentage);
+                       info->cpu_throttle_percentage);
     }
 
     qapi_free_MigrationInfo(info);
@@ -251,13 +272,11 @@ void hmp_info_migrate_capabilities(Monitor *mon, const QDict *qdict)
     caps = qmp_query_migrate_capabilities(NULL);
 
     if (caps) {
-        monitor_printf(mon, "capabilities: ");
         for (cap = caps; cap; cap = cap->next) {
-            monitor_printf(mon, "%s: %s ",
+            monitor_printf(mon, "%s: %s\n",
                            MigrationCapability_lookup[cap->value->capability],
                            cap->value->state ? "on" : "off");
         }
-        monitor_printf(mon, "\n");
     }
 
     qapi_free_MigrationCapabilityStatusList(caps);
@@ -270,23 +289,48 @@ void hmp_info_migrate_parameters(Monitor *mon, const QDict *qdict)
     params = qmp_query_migrate_parameters(NULL);
 
     if (params) {
-        monitor_printf(mon, "parameters:");
-        monitor_printf(mon, " %s: %" PRId64,
+        assert(params->has_compress_level);
+        monitor_printf(mon, "%s: %" PRId64 "\n",
             MigrationParameter_lookup[MIGRATION_PARAMETER_COMPRESS_LEVEL],
             params->compress_level);
-        monitor_printf(mon, " %s: %" PRId64,
+        assert(params->has_compress_threads);
+        monitor_printf(mon, "%s: %" PRId64 "\n",
             MigrationParameter_lookup[MIGRATION_PARAMETER_COMPRESS_THREADS],
             params->compress_threads);
-        monitor_printf(mon, " %s: %" PRId64,
+        assert(params->has_decompress_threads);
+        monitor_printf(mon, "%s: %" PRId64 "\n",
             MigrationParameter_lookup[MIGRATION_PARAMETER_DECOMPRESS_THREADS],
             params->decompress_threads);
-        monitor_printf(mon, " %s: %" PRId64,
-            MigrationParameter_lookup[MIGRATION_PARAMETER_X_CPU_THROTTLE_INITIAL],
-            params->x_cpu_throttle_initial);
-        monitor_printf(mon, " %s: %" PRId64,
-            MigrationParameter_lookup[MIGRATION_PARAMETER_X_CPU_THROTTLE_INCREMENT],
-            params->x_cpu_throttle_increment);
-        monitor_printf(mon, "\n");
+        assert(params->has_cpu_throttle_initial);
+        monitor_printf(mon, "%s: %" PRId64 "\n",
+            MigrationParameter_lookup[MIGRATION_PARAMETER_CPU_THROTTLE_INITIAL],
+            params->cpu_throttle_initial);
+        assert(params->has_cpu_throttle_increment);
+        monitor_printf(mon, "%s: %" PRId64 "\n",
+            MigrationParameter_lookup[MIGRATION_PARAMETER_CPU_THROTTLE_INCREMENT],
+            params->cpu_throttle_increment);
+        monitor_printf(mon, "%s: '%s'\n",
+            MigrationParameter_lookup[MIGRATION_PARAMETER_TLS_CREDS],
+            params->has_tls_creds ? params->tls_creds : "");
+        monitor_printf(mon, "%s: '%s'\n",
+            MigrationParameter_lookup[MIGRATION_PARAMETER_TLS_HOSTNAME],
+            params->has_tls_hostname ? params->tls_hostname : "");
+        assert(params->has_max_bandwidth);
+        monitor_printf(mon, "%s: %" PRId64 " bytes/second\n",
+            MigrationParameter_lookup[MIGRATION_PARAMETER_MAX_BANDWIDTH],
+            params->max_bandwidth);
+        assert(params->has_downtime_limit);
+        monitor_printf(mon, "%s: %" PRId64 " milliseconds\n",
+            MigrationParameter_lookup[MIGRATION_PARAMETER_DOWNTIME_LIMIT],
+            params->downtime_limit);
+        assert(params->has_x_checkpoint_delay);
+        monitor_printf(mon, "%s: %" PRId64 "\n",
+            MigrationParameter_lookup[MIGRATION_PARAMETER_X_CHECKPOINT_DELAY],
+            params->x_checkpoint_delay);
+        assert(params->has_block_incremental);
+        monitor_printf(mon, "%s: %s\n",
+            MigrationParameter_lookup[MIGRATION_PARAMETER_BLOCK_INCREMENTAL],
+                       params->block_incremental ? "on" : "off");
     }
 
     qapi_free_MigrationParameters(params);
@@ -769,6 +813,70 @@ static void hmp_info_pci_device(Monitor *mon, const PciDeviceInfo *dev)
     }
 }
 
+static int hmp_info_irq_foreach(Object *obj, void *opaque)
+{
+    InterruptStatsProvider *intc;
+    InterruptStatsProviderClass *k;
+    Monitor *mon = opaque;
+
+    if (object_dynamic_cast(obj, TYPE_INTERRUPT_STATS_PROVIDER)) {
+        intc = INTERRUPT_STATS_PROVIDER(obj);
+        k = INTERRUPT_STATS_PROVIDER_GET_CLASS(obj);
+        uint64_t *irq_counts;
+        unsigned int nb_irqs, i;
+        if (k->get_statistics &&
+            k->get_statistics(intc, &irq_counts, &nb_irqs)) {
+            if (nb_irqs > 0) {
+                monitor_printf(mon, "IRQ statistics for %s:\n",
+                               object_get_typename(obj));
+                for (i = 0; i < nb_irqs; i++) {
+                    if (irq_counts[i] > 0) {
+                        monitor_printf(mon, "%2d: %" PRId64 "\n", i,
+                                       irq_counts[i]);
+                    }
+                }
+            }
+        } else {
+            monitor_printf(mon, "IRQ statistics not available for %s.\n",
+                           object_get_typename(obj));
+        }
+    }
+
+    return 0;
+}
+
+void hmp_info_irq(Monitor *mon, const QDict *qdict)
+{
+    object_child_foreach_recursive(object_get_root(),
+                                   hmp_info_irq_foreach, mon);
+}
+
+static int hmp_info_pic_foreach(Object *obj, void *opaque)
+{
+    InterruptStatsProvider *intc;
+    InterruptStatsProviderClass *k;
+    Monitor *mon = opaque;
+
+    if (object_dynamic_cast(obj, TYPE_INTERRUPT_STATS_PROVIDER)) {
+        intc = INTERRUPT_STATS_PROVIDER(obj);
+        k = INTERRUPT_STATS_PROVIDER_GET_CLASS(obj);
+        if (k->print_info) {
+            k->print_info(intc, mon);
+        } else {
+            monitor_printf(mon, "Interrupt controller information not available for %s.\n",
+                           object_get_typename(obj));
+        }
+    }
+
+    return 0;
+}
+
+void hmp_info_pic(Monitor *mon, const QDict *qdict)
+{
+    object_child_foreach_recursive(object_get_root(),
+                                   hmp_info_pic_foreach, mon);
+}
+
 void hmp_info_pci(Monitor *mon, const QDict *qdict)
 {
     PciInfoList *info_list, *info;
@@ -913,8 +1021,14 @@ void hmp_memsave(Monitor *mon, const QDict *qdict)
     const char *filename = qdict_get_str(qdict, "filename");
     uint64_t addr = qdict_get_int(qdict, "val");
     Error *err = NULL;
+    int cpu_index = monitor_get_cpu_index();
+
+    if (cpu_index < 0) {
+        monitor_printf(mon, "No CPU available\n");
+        return;
+    }
 
-    qmp_memsave(addr, size, filename, true, monitor_get_cpu_index(), &err);
+    qmp_memsave(addr, size, filename, true, cpu_index, &err);
     hmp_handle_error(mon, &err);
 }
 
@@ -1059,31 +1173,28 @@ void hmp_block_resize(Monitor *mon, const QDict *qdict)
 
 void hmp_drive_mirror(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);
-    enum NewImageMode mode;
     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;
     }
-
-    if (reuse) {
-        mode = NEW_IMAGE_MODE_EXISTING;
-    } else {
-        mode = NEW_IMAGE_MODE_ABSOLUTE_PATHS;
-    }
-
-    qmp_drive_mirror(device, filename, !!format, format,
-                     false, NULL, false, NULL,
-                     full ? MIRROR_SYNC_MODE_FULL : MIRROR_SYNC_MODE_TOP,
-                     true, mode, false, 0, false, 0, false, 0,
-                     false, 0, false, 0, false, true, &err);
+    qmp_drive_mirror(&mirror, &err);
     hmp_handle_error(mon, &err);
 }
 
@@ -1094,8 +1205,19 @@ void hmp_drive_backup(Monitor *mon, const QDict *qdict)
     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);
-    enum NewImageMode mode;
+    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");
@@ -1103,16 +1225,7 @@ void hmp_drive_backup(Monitor *mon, const QDict *qdict)
         return;
     }
 
-    if (reuse) {
-        mode = NEW_IMAGE_MODE_EXISTING;
-    } else {
-        mode = NEW_IMAGE_MODE_ABSOLUTE_PATHS;
-    }
-
-    qmp_drive_backup(device, filename, !!format, format,
-                     full ? MIRROR_SYNC_MODE_FULL : MIRROR_SYNC_MODE_TOP,
-                     true, mode, false, 0, false, NULL,
-                     false, 0, false, 0, &err);
+    qmp_drive_backup(&backup, &err);
     hmp_handle_error(mon, &err);
 }
 
@@ -1163,6 +1276,184 @@ void hmp_snapshot_delete_blkdev_internal(Monitor *mon, const QDict *qdict)
     hmp_handle_error(mon, &err);
 }
 
+void hmp_loadvm(Monitor *mon, const QDict *qdict)
+{
+    int saved_vm_running  = runstate_is_running();
+    const char *name = qdict_get_str(qdict, "name");
+    Error *err = NULL;
+
+    vm_stop(RUN_STATE_RESTORE_VM);
+
+    if (load_vmstate(name, &err) == 0 && saved_vm_running) {
+        vm_start();
+    }
+    hmp_handle_error(mon, &err);
+}
+
+void hmp_savevm(Monitor *mon, const QDict *qdict)
+{
+    Error *err = NULL;
+
+    save_vmstate(qdict_get_try_str(qdict, "name"), &err);
+    hmp_handle_error(mon, &err);
+}
+
+void hmp_delvm(Monitor *mon, const QDict *qdict)
+{
+    BlockDriverState *bs;
+    Error *err;
+    const char *name = qdict_get_str(qdict, "name");
+
+    if (bdrv_all_delete_snapshot(name, &bs, &err) < 0) {
+        error_reportf_err(err,
+                          "Error while deleting snapshot on device '%s': ",
+                          bdrv_get_device_name(bs));
+    }
+}
+
+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((fprintf_function)monitor_printf, mon, 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((fprintf_function)monitor_printf, mon, 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((fprintf_function)monitor_printf, mon, NULL);
+        monitor_printf(mon, "\n");
+        QTAILQ_FOREACH(snapshot_entry, &image_entry->snapshots, next) {
+            bdrv_snapshot_dump((fprintf_function)monitor_printf, mon,
+                               &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_migrate_cancel(Monitor *mon, const QDict *qdict)
 {
     qmp_migrate_cancel(NULL);
@@ -1178,6 +1469,7 @@ void hmp_migrate_incoming(Monitor *mon, const QDict *qdict)
     hmp_handle_error(mon, &err);
 }
 
+/* Kept for backwards compatibility */
 void hmp_migrate_set_downtime(Monitor *mon, const QDict *qdict)
 {
     double value = qdict_get_double(qdict, "value");
@@ -1196,6 +1488,7 @@ void hmp_migrate_set_cache_size(Monitor *mon, const QDict *qdict)
     }
 }
 
+/* Kept for backwards compatibility */
 void hmp_migrate_set_speed(Monitor *mon, const QDict *qdict)
 {
     int64_t value = qdict_get_int(qdict, "value");
@@ -1235,40 +1528,92 @@ void hmp_migrate_set_capability(Monitor *mon, const QDict *qdict)
 void hmp_migrate_set_parameter(Monitor *mon, const QDict *qdict)
 {
     const char *param = qdict_get_str(qdict, "parameter");
-    int value = qdict_get_int(qdict, "value");
+    const char *valuestr = qdict_get_str(qdict, "value");
+    Visitor *v = string_input_visitor_new(valuestr);
+    uint64_t valuebw = 0;
+    int64_t valueint = 0;
+    bool valuebool = false;
     Error *err = NULL;
-    bool has_compress_level = false;
-    bool has_compress_threads = false;
-    bool has_decompress_threads = false;
-    bool has_x_cpu_throttle_initial = false;
-    bool has_x_cpu_throttle_increment = false;
-    int i;
+    bool use_int_value = false;
+    int i, ret;
 
     for (i = 0; i < MIGRATION_PARAMETER__MAX; i++) {
         if (strcmp(param, MigrationParameter_lookup[i]) == 0) {
+            MigrationParameters p = { 0 };
             switch (i) {
             case MIGRATION_PARAMETER_COMPRESS_LEVEL:
-                has_compress_level = true;
+                p.has_compress_level = true;
+                use_int_value = true;
                 break;
             case MIGRATION_PARAMETER_COMPRESS_THREADS:
-                has_compress_threads = true;
+                p.has_compress_threads = true;
+                use_int_value = true;
                 break;
             case MIGRATION_PARAMETER_DECOMPRESS_THREADS:
-                has_decompress_threads = true;
+                p.has_decompress_threads = true;
+                use_int_value = true;
+                break;
+            case MIGRATION_PARAMETER_CPU_THROTTLE_INITIAL:
+                p.has_cpu_throttle_initial = true;
+                use_int_value = true;
+                break;
+            case MIGRATION_PARAMETER_CPU_THROTTLE_INCREMENT:
+                p.has_cpu_throttle_increment = true;
+                use_int_value = true;
+                break;
+            case MIGRATION_PARAMETER_TLS_CREDS:
+                p.has_tls_creds = true;
+                p.tls_creds = (char *) valuestr;
+                break;
+            case MIGRATION_PARAMETER_TLS_HOSTNAME:
+                p.has_tls_hostname = true;
+                p.tls_hostname = (char *) valuestr;
                 break;
-            case MIGRATION_PARAMETER_X_CPU_THROTTLE_INITIAL:
-                has_x_cpu_throttle_initial = true;
+            case MIGRATION_PARAMETER_MAX_BANDWIDTH:
+                p.has_max_bandwidth = true;
+                ret = qemu_strtosz_MiB(valuestr, NULL, &valuebw);
+                if (ret < 0 || valuebw > INT64_MAX
+                    || (size_t)valuebw != valuebw) {
+                    error_setg(&err, "Invalid size %s", valuestr);
+                    goto cleanup;
+                }
+                p.max_bandwidth = valuebw;
+                break;
+            case MIGRATION_PARAMETER_DOWNTIME_LIMIT:
+                p.has_downtime_limit = true;
+                use_int_value = true;
+                break;
+            case MIGRATION_PARAMETER_X_CHECKPOINT_DELAY:
+                p.has_x_checkpoint_delay = true;
+                use_int_value = true;
                 break;
-            case MIGRATION_PARAMETER_X_CPU_THROTTLE_INCREMENT:
-                has_x_cpu_throttle_increment = true;
+            case MIGRATION_PARAMETER_BLOCK_INCREMENTAL:
+                p.has_block_incremental = true;
+                visit_type_bool(v, param, &valuebool, &err);
+                if (err) {
+                    goto cleanup;
+                }
+                p.block_incremental = valuebool;
                 break;
             }
-            qmp_migrate_set_parameters(has_compress_level, value,
-                                       has_compress_threads, value,
-                                       has_decompress_threads, value,
-                                       has_x_cpu_throttle_initial, value,
-                                       has_x_cpu_throttle_increment, value,
-                                       &err);
+
+            if (use_int_value) {
+                visit_type_int(v, param, &valueint, &err);
+                if (err) {
+                    goto cleanup;
+                }
+                /* Set all integers; only one has_FOO will be set, and
+                 * the code ignores the remaining values */
+                p.compress_level = valueint;
+                p.compress_threads = valueint;
+                p.decompress_threads = valueint;
+                p.cpu_throttle_initial = valueint;
+                p.cpu_throttle_increment = valueint;
+                p.downtime_limit = valueint;
+                p.x_checkpoint_delay = valueint;
+            }
+
+            qmp_migrate_set_parameters(&p, &err);
             break;
         }
     }
@@ -1277,6 +1622,8 @@ void hmp_migrate_set_parameter(Monitor *mon, const QDict *qdict)
         error_setg(&err, QERR_INVALID_PARAMETER, param);
     }
 
+ cleanup:
+    visit_free(v);
     if (err) {
         error_report_err(err);
     }
@@ -1306,6 +1653,14 @@ void hmp_migrate_start_postcopy(Monitor *mon, const QDict *qdict)
     hmp_handle_error(mon, &err);
 }
 
+void hmp_x_colo_lost_heartbeat(Monitor *mon, const QDict *qdict)
+{
+    Error *err = NULL;
+
+    qmp_x_colo_lost_heartbeat(&err);
+    hmp_handle_error(mon, &err);
+}
+
 void hmp_set_password(Monitor *mon, const QDict *qdict)
 {
     const char *protocol  = qdict_get_str(qdict, "protocol");
@@ -1333,7 +1688,7 @@ void hmp_eject(Monitor *mon, const QDict *qdict)
     const char *device = qdict_get_str(qdict, "device");
     Error *err = NULL;
 
-    qmp_eject(device, true, force, &err);
+    qmp_eject(true, device, false, NULL, true, force, &err);
     hmp_handle_error(mon, &err);
 }
 
@@ -1379,8 +1734,9 @@ void hmp_change(Monitor *mon, const QDict *qdict)
             }
         }
 
-        qmp_blockdev_change_medium(device, target, !!arg, arg,
-                                   !!read_only, read_only_mode, &err);
+        qmp_blockdev_change_medium(true, device, false, NULL, target,
+                                   !!arg, arg, !!read_only, read_only_mode,
+                                   &err);
         if (err &&
             error_get_class(err) == ERROR_CLASS_DEVICE_ENCRYPTED) {
             error_free(err);
@@ -1395,42 +1751,18 @@ void hmp_change(Monitor *mon, const QDict *qdict)
 void hmp_block_set_io_throttle(Monitor *mon, const QDict *qdict)
 {
     Error *err = NULL;
+    BlockIOThrottle throttle = {
+        .has_device = true,
+        .device = (char *) qdict_get_str(qdict, "device"),
+        .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(qdict_get_str(qdict, "device"),
-                              qdict_get_int(qdict, "bps"),
-                              qdict_get_int(qdict, "bps_rd"),
-                              qdict_get_int(qdict, "bps_wr"),
-                              qdict_get_int(qdict, "iops"),
-                              qdict_get_int(qdict, "iops_rd"),
-                              qdict_get_int(qdict, "iops_wr"),
-                              false, /* no burst max via HMP */
-                              0,
-                              false,
-                              0,
-                              false,
-                              0,
-                              false,
-                              0,
-                              false,
-                              0,
-                              false,
-                              0,
-                              false, /* no burst length via HMP */
-                              0,
-                              false,
-                              0,
-                              false,
-                              0,
-                              false,
-                              0,
-                              false,
-                              0,
-                              false,
-                              0,
-                              false, /* No default I/O size */
-                              0,
-                              false,
-                              NULL, &err);
+    qmp_block_set_io_throttle(&throttle, &err);
     hmp_handle_error(mon, &err);
 }
 
@@ -1441,8 +1773,8 @@ void hmp_block_stream(Monitor *mon, const QDict *qdict)
     const char *base = qdict_get_try_str(qdict, "base");
     int64_t speed = qdict_get_try_int(qdict, "speed", 0);
 
-    qmp_block_stream(device, base != NULL, base, false, NULL,
-                     qdict_haskey(qdict, "speed"), speed,
+    qmp_block_stream(true, device, device, base != NULL, base, false, NULL,
+                     false, NULL, qdict_haskey(qdict, "speed"), speed,
                      true, BLOCKDEV_ON_ERROR_REPORT, &error);
 
     hmp_handle_error(mon, &error);
@@ -1533,6 +1865,9 @@ static void hmp_migrate_status_cb(void *opaque)
         if (status->is_block_migration) {
             monitor_printf(status->mon, "\n");
         }
+        if (info->has_error_desc) {
+            error_report("%s", info->error_desc);
+        }
         monitor_resume(status->mon);
         timer_del(status->timer);
         g_free(status);
@@ -1675,7 +2010,6 @@ void hmp_object_add(Monitor *mon, const QDict *qdict)
 {
     Error *err = NULL;
     QemuOpts *opts;
-    OptsVisitor *ov;
     Object *obj = NULL;
 
     opts = qemu_opts_from_qdict(qemu_find_opts("object"), qdict, &err);
@@ -1684,9 +2018,7 @@ void hmp_object_add(Monitor *mon, const QDict *qdict)
         return;
     }
 
-    ov = opts_visitor_new(opts);
-    obj = user_creatable_add(qdict, opts_get_visitor(ov), &err);
-    opts_visitor_cleanup(ov);
+    obj = user_creatable_add_opts(opts, &err);
     qemu_opts_del(opts);
 
     if (err) {
@@ -1811,7 +2143,7 @@ void hmp_nbd_server_start(Monitor *mon, const QDict *qdict)
         goto exit;
     }
 
-    qmp_nbd_server_start(addr, false, NULL, &local_err);
+    nbd_server_start(addr, NULL, &local_err);
     qapi_free_SocketAddress(addr);
     if (local_err != NULL) {
         goto exit;
@@ -1886,7 +2218,8 @@ void hmp_chardev_add(Monitor *mon, const QDict *qdict)
     if (opts == NULL) {
         error_setg(&err, "Parsing chardev args failed");
     } else {
-        qemu_chr_new_from_opts(opts, NULL, &err);
+        qemu_chr_new_from_opts(opts, &err);
+        qemu_opts_del(opts);
     }
     hmp_handle_error(mon, &err);
 }
@@ -1902,18 +2235,61 @@ void hmp_chardev_remove(Monitor *mon, const QDict *qdict)
 void hmp_qemu_io(Monitor *mon, const QDict *qdict)
 {
     BlockBackend *blk;
+    BlockBackend *local_blk = NULL;
+    AioContext *aio_context;
     const char* device = qdict_get_str(qdict, "device");
     const char* command = qdict_get_str(qdict, "command");
     Error *err = NULL;
+    int ret;
 
     blk = blk_by_name(device);
-    if (blk) {
-        qemuio_command(blk, command);
-    } else {
-        error_set(&err, ERROR_CLASS_DEVICE_NOT_FOUND,
-                  "Device '%s' not found", device);
-    }
+    if (!blk) {
+        BlockDriverState *bs = bdrv_lookup_bs(NULL, device, &err);
+        if (bs) {
+            blk = local_blk = blk_new(0, BLK_PERM_ALL);
+            ret = blk_insert_bs(blk, bs, &err);
+            if (ret < 0) {
+                goto fail;
+            }
+        } else {
+            goto fail;
+        }
+    }
+
+    aio_context = blk_get_aio_context(blk);
+    aio_context_acquire(aio_context);
+
+    /*
+     * 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);
+
+    aio_context_release(aio_context);
 
+fail:
+    blk_unref(local_blk);
     hmp_handle_error(mon, &err);
 }
 
@@ -1931,16 +2307,13 @@ void hmp_info_memdev(Monitor *mon, const QDict *qdict)
     Error *err = NULL;
     MemdevList *memdev_list = qmp_query_memdev(&err);
     MemdevList *m = memdev_list;
-    StringOutputVisitor *ov;
+    Visitor *v;
     char *str;
-    int i = 0;
-
 
     while (m) {
-        ov = string_output_visitor_new(false);
-        visit_type_uint16List(string_output_get_visitor(ov), NULL,
-                              &m->value->host_nodes, NULL);
-        monitor_printf(mon, "memory backend: %d\n", i);
+        v = string_output_visitor_new(false, &str);
+        visit_type_uint16List(v, NULL, &m->value->host_nodes, NULL);
+        monitor_printf(mon, "memory backend: %s\n", m->value->id);
         monitor_printf(mon, "  size:  %" PRId64 "\n", m->value->size);
         monitor_printf(mon, "  merge: %s\n",
                        m->value->merge ? "true" : "false");
@@ -1950,13 +2323,12 @@ void hmp_info_memdev(Monitor *mon, const QDict *qdict)
                        m->value->prealloc ? "true" : "false");
         monitor_printf(mon, "  policy: %s\n",
                        HostMemPolicy_lookup[m->value->policy]);
-        str = string_output_get_string(ov);
+        visit_complete(v, &str);
         monitor_printf(mon, "  host nodes: %s\n", str);
 
         g_free(str);
-        string_output_visitor_cleanup(ov);
+        visit_free(v);
         m = m->next;
-        i++;
     }
 
     monitor_printf(mon, "\n");
@@ -2006,10 +2378,15 @@ void hmp_info_iothreads(Monitor *mon, const QDict *qdict)
 {
     IOThreadInfoList *info_list = qmp_query_iothreads(NULL);
     IOThreadInfoList *info;
+    IOThreadInfo *value;
 
     for (info = info_list; info; info = info->next) {
-        monitor_printf(mon, "%s: thread_id=%" PRId64 "\n",
-                       info->value->id, info->value->thread_id);
+        value = info->value;
+        monitor_printf(mon, "%s:\n", value->id);
+        monitor_printf(mon, "  thread_id=%" PRId64 "\n", value->thread_id);
+        monitor_printf(mon, "  poll-max-ns=%" PRId64 "\n", value->poll_max_ns);
+        monitor_printf(mon, "  poll-grow=%" PRId64 "\n", value->poll_grow);
+        monitor_printf(mon, "  poll-shrink=%" PRId64 "\n", value->poll_shrink);
     }
 
     qapi_free_IOThreadInfoList(info_list);
@@ -2381,3 +2758,61 @@ void hmp_info_dump(Monitor *mon, const QDict *qdict)
 
     qapi_free_DumpQueryResult(result);
 }
+
+void hmp_info_ramblock(Monitor *mon, const QDict *qdict)
+{
+    ram_block_dump(mon);
+}
+
+void hmp_hotpluggable_cpus(Monitor *mon, const QDict *qdict)
+{
+    Error *err = NULL;
+    HotpluggableCPUList *l = qmp_query_hotpluggable_cpus(&err);
+    HotpluggableCPUList *saved = l;
+    CpuInstanceProperties *c;
+
+    if (err != NULL) {
+        hmp_handle_error(mon, &err);
+        return;
+    }
+
+    monitor_printf(mon, "Hotpluggable CPUs:\n");
+    while (l) {
+        monitor_printf(mon, "  type: \"%s\"\n", l->value->type);
+        monitor_printf(mon, "  vcpus_count: \"%" PRIu64 "\"\n",
+                       l->value->vcpus_count);
+        if (l->value->has_qom_path) {
+            monitor_printf(mon, "  qom_path: \"%s\"\n", l->value->qom_path);
+        }
+
+        c = l->value->props;
+        monitor_printf(mon, "  CPUInstance Properties:\n");
+        if (c->has_node_id) {
+            monitor_printf(mon, "    node-id: \"%" PRIu64 "\"\n", c->node_id);
+        }
+        if (c->has_socket_id) {
+            monitor_printf(mon, "    socket-id: \"%" PRIu64 "\"\n", c->socket_id);
+        }
+        if (c->has_core_id) {
+            monitor_printf(mon, "    core-id: \"%" PRIu64 "\"\n", c->core_id);
+        }
+        if (c->has_thread_id) {
+            monitor_printf(mon, "    thread-id: \"%" PRIu64 "\"\n", c->thread_id);
+        }
+
+        l = l->next;
+    }
+
+    qapi_free_HotpluggableCPUList(saved);
+}
+
+void hmp_info_vm_generation_id(Monitor *mon, const QDict *qdict)
+{
+    Error *err = NULL;
+    GuidInfo *info = qmp_query_vm_generation_id(&err);
+    if (info) {
+        monitor_printf(mon, "%s\n", info->guid);
+    }
+    hmp_handle_error(mon, &err);
+    qapi_free_GuidInfo(info);
+}
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