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qemu/migration/migration-hmp-cmds.c
Peter Xu e09c6d8375 migration/hmp: Add "info migrate -a", reorg the dump 
A new parameter "-a" is added to "info migrate" to dump all info, while
when not specified it only dumps the important ones.  When at it, reorg
everything to make it easier to read for human.

The general rule is:

  - Put important things at the top
  - Reuse a single line when things are very relevant, hence reducing lines
    needed to show the results
  - Remove almost useless ones (e.g. "normal_bytes", while we also have
    both "page size" and "normal" pages)
  - Regroup things, so that related fields will show together
  - etc.

Before this change, it looks like (one example of a completed case):

  globals:
  store-global-state: on
  only-migratable: off
  send-configuration: on
  send-section-footer: on
  send-switchover-start: on
  clear-bitmap-shift: 18
  Migration status: completed
  total time: 122952 ms
  downtime: 76 ms
  setup: 15 ms
  transferred ram: 130825923 kbytes
  throughput: 8717.68 mbps
  remaining ram: 0 kbytes
  total ram: 16777992 kbytes
  duplicate: 997263 pages
  normal: 32622225 pages
  normal bytes: 130488900 kbytes
  dirty sync count: 10
  page size: 4 kbytes
  multifd bytes: 117134260 kbytes
  pages-per-second: 169431
  postcopy request count: 5835
  precopy ram: 15 kbytes
  postcopy ram: 13691151 kbytes

After this change, sample output (default, no "-a" specified):

  Status: postcopy-active
  Time (ms): total=40504, setup=14, down=145
  RAM info:
    Bandwidth (mbps): 6102.65
    Sizes (KB): psize=4, total=16777992,
      transferred=37673019, remain=2136404,
      precopy=3, multifd=26108780, postcopy=11563855
    Pages: normal=9394288, zero=600672, rate_per_sec=185875
    Others: dirty_syncs=3, dirty_pages_rate=278378, postcopy_req=4078

Sample output when "-a" specified:

  Status: active
  Time (ms): total=3040, setup=4, exp_down=300
  RAM info:
    Throughput (mbps): 10.51
    Sizes (KB): psize=4, total=4211528,
      transferred=3979, remain=4206452,
      precopy=3978, multifd=0, postcopy=0
    Pages: normal=992, zero=277, rate_per_sec=320
    Others: dirty_syncs=1
  Globals:
    store-global-state: on
    only-migratable: off
    send-configuration: on
    send-section-footer: on
    send-switchover-start: on
    clear-bitmap-shift: 18
  XBZRLE: size=67108864, transferred=0, pages=0, miss=188451
    miss_rate=0.00, encode_rate=0.00, overflow=0
  CPU Throttle (%): 0
  Dirty-limit Throttle (us): 0
  Dirty-limit Ring Full (us): 0
  Postcopy Blocktime (ms): 0
  Postcopy vCPU Blocktime: ...

Reviewed-by: Dr. David Alan Gilbert <dave@treblig.org>
Tested-by: Mario Casquero <mcasquer@redhat.com>
[peterx: print "," too in 1st line of RAM info]
Signed-off-by: Peter Xu <peterx@redhat.com>
2025-05-20 13:05:57 -04:00

824 lines
27 KiB
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/*
* HMP commands related to migration
*
* Copyright IBM, Corp. 2011
*
* Authors:
* Anthony Liguori <aliguori@us.ibm.com>
*
* This work is licensed under the terms of the GNU GPL, version 2. See
* the COPYING file in the top-level directory.
*
* Contributions after 2012-01-13 are licensed under the terms of the
* GNU GPL, version 2 or (at your option) any later version.
*/
#include "qemu/osdep.h"
#include "block/qapi.h"
#include "migration/snapshot.h"
#include "monitor/hmp.h"
#include "monitor/monitor.h"
#include "qapi/error.h"
#include "qapi/qapi-commands-migration.h"
#include "qapi/qapi-visit-migration.h"
#include "qobject/qdict.h"
#include "qapi/string-input-visitor.h"
#include "qapi/string-output-visitor.h"
#include "qemu/cutils.h"
#include "qemu/error-report.h"
#include "qemu/sockets.h"
#include "system/runstate.h"
#include "ui/qemu-spice.h"
#include "system/system.h"
#include "options.h"
#include "migration.h"
static void migration_global_dump(Monitor *mon)
{
MigrationState *ms = migrate_get_current();
monitor_printf(mon, "Globals:\n");
monitor_printf(mon, " store-global-state: %s\n",
ms->store_global_state ? "on" : "off");
monitor_printf(mon, " only-migratable: %s\n",
only_migratable ? "on" : "off");
monitor_printf(mon, " send-configuration: %s\n",
ms->send_configuration ? "on" : "off");
monitor_printf(mon, " send-section-footer: %s\n",
ms->send_section_footer ? "on" : "off");
monitor_printf(mon, " send-switchover-start: %s\n",
ms->send_switchover_start ? "on" : "off");
monitor_printf(mon, " clear-bitmap-shift: %u\n",
ms->clear_bitmap_shift);
}
void hmp_info_migrate(Monitor *mon, const QDict *qdict)
{
bool show_all = qdict_get_try_bool(qdict, "all", false);
MigrationInfo *info;
info = qmp_query_migrate(NULL);
if (info->blocked_reasons) {
strList *reasons = info->blocked_reasons;
monitor_printf(mon, "Outgoing migration blocked:\n");
while (reasons) {
monitor_printf(mon, " %s\n", reasons->value);
reasons = reasons->next;
}
}
if (info->has_status) {
monitor_printf(mon, "Status: %s",
MigrationStatus_str(info->status));
if (info->status == MIGRATION_STATUS_FAILED && info->error_desc) {
monitor_printf(mon, " (%s)\n", info->error_desc);
} else {
monitor_printf(mon, "\n");
}
if (info->total_time) {
monitor_printf(mon, "Time (ms): total=%" PRIu64,
info->total_time);
if (info->has_setup_time) {
monitor_printf(mon, ", setup=%" PRIu64,
info->setup_time);
}
if (info->has_expected_downtime) {
monitor_printf(mon, ", exp_down=%" PRIu64,
info->expected_downtime);
}
if (info->has_downtime) {
monitor_printf(mon, ", down=%" PRIu64,
info->downtime);
}
monitor_printf(mon, "\n");
}
}
if (info->has_socket_address) {
SocketAddressList *addr;
monitor_printf(mon, "Sockets: [\n");
for (addr = info->socket_address; addr; addr = addr->next) {
char *s = socket_uri(addr->value);
monitor_printf(mon, "\t%s\n", s);
g_free(s);
}
monitor_printf(mon, "]\n");
}
if (info->ram) {
monitor_printf(mon, "RAM info:\n");
monitor_printf(mon, " Throughput (Mbps): %0.2f\n",
info->ram->mbps);
monitor_printf(mon, " Sizes (KiB): pagesize=%" PRIu64
", total=%" PRIu64 ",\n",
info->ram->page_size >> 10,
info->ram->total >> 10);
monitor_printf(mon, " transferred=%" PRIu64
", remain=%" PRIu64 ",\n",
info->ram->transferred >> 10,
info->ram->remaining >> 10);
monitor_printf(mon, " precopy=%" PRIu64
", multifd=%" PRIu64
", postcopy=%" PRIu64,
info->ram->precopy_bytes >> 10,
info->ram->multifd_bytes >> 10,
info->ram->postcopy_bytes >> 10);
if (info->vfio) {
monitor_printf(mon, ", vfio=%" PRIu64,
info->vfio->transferred >> 10);
}
monitor_printf(mon, "\n");
monitor_printf(mon, " Pages: normal=%" PRIu64 ", zero=%" PRIu64
", rate_per_sec=%" PRIu64 "\n",
info->ram->normal,
info->ram->duplicate,
info->ram->pages_per_second);
monitor_printf(mon, " Others: dirty_syncs=%" PRIu64,
info->ram->dirty_sync_count);
if (info->ram->dirty_pages_rate) {
monitor_printf(mon, ", dirty_pages_rate=%" PRIu64,
info->ram->dirty_pages_rate);
}
if (info->ram->postcopy_requests) {
monitor_printf(mon, ", postcopy_req=%" PRIu64,
info->ram->postcopy_requests);
}
if (info->ram->downtime_bytes) {
monitor_printf(mon, ", downtime_ram=%" PRIu64,
info->ram->downtime_bytes);
}
if (info->ram->dirty_sync_missed_zero_copy) {
monitor_printf(mon, ", zerocopy_fallbacks=%" PRIu64,
info->ram->dirty_sync_missed_zero_copy);
}
monitor_printf(mon, "\n");
}
if (!show_all) {
goto out;
}
migration_global_dump(mon);
if (info->xbzrle_cache) {
monitor_printf(mon, "XBZRLE: size=%" PRIu64
", transferred=%" PRIu64
", pages=%" PRIu64
", miss=%" PRIu64 "\n"
" miss_rate=%0.2f"
", encode_rate=%0.2f"
", overflow=%" PRIu64 "\n",
info->xbzrle_cache->cache_size,
info->xbzrle_cache->bytes,
info->xbzrle_cache->pages,
info->xbzrle_cache->cache_miss,
info->xbzrle_cache->cache_miss_rate,
info->xbzrle_cache->encoding_rate,
info->xbzrle_cache->overflow);
}
if (info->has_cpu_throttle_percentage) {
monitor_printf(mon, "CPU Throttle (%%): %" PRIu64 "\n",
info->cpu_throttle_percentage);
}
if (info->has_dirty_limit_throttle_time_per_round) {
monitor_printf(mon, "Dirty-limit Throttle (us): %" PRIu64 "\n",
info->dirty_limit_throttle_time_per_round);
}
if (info->has_dirty_limit_ring_full_time) {
monitor_printf(mon, "Dirty-limit Ring Full (us): %" PRIu64 "\n",
info->dirty_limit_ring_full_time);
}
if (info->has_postcopy_blocktime) {
monitor_printf(mon, "Postcopy Blocktime (ms): %" PRIu32 "\n",
info->postcopy_blocktime);
}
if (info->has_postcopy_vcpu_blocktime) {
Visitor *v;
char *str;
v = string_output_visitor_new(false, &str);
visit_type_uint32List(v, NULL, &info->postcopy_vcpu_blocktime,
&error_abort);
visit_complete(v, &str);
monitor_printf(mon, "Postcopy vCPU Blocktime: %s\n", str);
g_free(str);
visit_free(v);
}
out:
qapi_free_MigrationInfo(info);
}
void hmp_info_migrate_capabilities(Monitor *mon, const QDict *qdict)
{
MigrationCapabilityStatusList *caps, *cap;
caps = qmp_query_migrate_capabilities(NULL);
if (caps) {
for (cap = caps; cap; cap = cap->next) {
monitor_printf(mon, "%s: %s\n",
MigrationCapability_str(cap->value->capability),
cap->value->state ? "on" : "off");
}
}
qapi_free_MigrationCapabilityStatusList(caps);
}
void hmp_info_migrate_parameters(Monitor *mon, const QDict *qdict)
{
MigrationParameters *params;
params = qmp_query_migrate_parameters(NULL);
if (params) {
monitor_printf(mon, "%s: %" PRIu64 " ms\n",
MigrationParameter_str(MIGRATION_PARAMETER_ANNOUNCE_INITIAL),
params->announce_initial);
monitor_printf(mon, "%s: %" PRIu64 " ms\n",
MigrationParameter_str(MIGRATION_PARAMETER_ANNOUNCE_MAX),
params->announce_max);
monitor_printf(mon, "%s: %" PRIu64 "\n",
MigrationParameter_str(MIGRATION_PARAMETER_ANNOUNCE_ROUNDS),
params->announce_rounds);
monitor_printf(mon, "%s: %" PRIu64 " ms\n",
MigrationParameter_str(MIGRATION_PARAMETER_ANNOUNCE_STEP),
params->announce_step);
assert(params->has_throttle_trigger_threshold);
monitor_printf(mon, "%s: %u\n",
MigrationParameter_str(MIGRATION_PARAMETER_THROTTLE_TRIGGER_THRESHOLD),
params->throttle_trigger_threshold);
assert(params->has_cpu_throttle_initial);
monitor_printf(mon, "%s: %u\n",
MigrationParameter_str(MIGRATION_PARAMETER_CPU_THROTTLE_INITIAL),
params->cpu_throttle_initial);
assert(params->has_cpu_throttle_increment);
monitor_printf(mon, "%s: %u\n",
MigrationParameter_str(MIGRATION_PARAMETER_CPU_THROTTLE_INCREMENT),
params->cpu_throttle_increment);
assert(params->has_cpu_throttle_tailslow);
monitor_printf(mon, "%s: %s\n",
MigrationParameter_str(MIGRATION_PARAMETER_CPU_THROTTLE_TAILSLOW),
params->cpu_throttle_tailslow ? "on" : "off");
assert(params->has_max_cpu_throttle);
monitor_printf(mon, "%s: %u\n",
MigrationParameter_str(MIGRATION_PARAMETER_MAX_CPU_THROTTLE),
params->max_cpu_throttle);
assert(params->tls_creds);
monitor_printf(mon, "%s: '%s'\n",
MigrationParameter_str(MIGRATION_PARAMETER_TLS_CREDS),
params->tls_creds);
assert(params->tls_hostname);
monitor_printf(mon, "%s: '%s'\n",
MigrationParameter_str(MIGRATION_PARAMETER_TLS_HOSTNAME),
params->tls_hostname);
assert(params->has_max_bandwidth);
monitor_printf(mon, "%s: %" PRIu64 " bytes/second\n",
MigrationParameter_str(MIGRATION_PARAMETER_MAX_BANDWIDTH),
params->max_bandwidth);
assert(params->has_avail_switchover_bandwidth);
monitor_printf(mon, "%s: %" PRIu64 " bytes/second\n",
MigrationParameter_str(MIGRATION_PARAMETER_AVAIL_SWITCHOVER_BANDWIDTH),
params->avail_switchover_bandwidth);
assert(params->has_downtime_limit);
monitor_printf(mon, "%s: %" PRIu64 " ms\n",
MigrationParameter_str(MIGRATION_PARAMETER_DOWNTIME_LIMIT),
params->downtime_limit);
assert(params->has_x_checkpoint_delay);
monitor_printf(mon, "%s: %u ms\n",
MigrationParameter_str(MIGRATION_PARAMETER_X_CHECKPOINT_DELAY),
params->x_checkpoint_delay);
monitor_printf(mon, "%s: %u\n",
MigrationParameter_str(MIGRATION_PARAMETER_MULTIFD_CHANNELS),
params->multifd_channels);
monitor_printf(mon, "%s: %s\n",
MigrationParameter_str(MIGRATION_PARAMETER_MULTIFD_COMPRESSION),
MultiFDCompression_str(params->multifd_compression));
assert(params->has_zero_page_detection);
monitor_printf(mon, "%s: %s\n",
MigrationParameter_str(MIGRATION_PARAMETER_ZERO_PAGE_DETECTION),
qapi_enum_lookup(&ZeroPageDetection_lookup,
params->zero_page_detection));
monitor_printf(mon, "%s: %" PRIu64 " bytes\n",
MigrationParameter_str(MIGRATION_PARAMETER_XBZRLE_CACHE_SIZE),
params->xbzrle_cache_size);
monitor_printf(mon, "%s: %" PRIu64 "\n",
MigrationParameter_str(MIGRATION_PARAMETER_MAX_POSTCOPY_BANDWIDTH),
params->max_postcopy_bandwidth);
monitor_printf(mon, "%s: '%s'\n",
MigrationParameter_str(MIGRATION_PARAMETER_TLS_AUTHZ),
params->tls_authz);
if (params->has_block_bitmap_mapping) {
const BitmapMigrationNodeAliasList *bmnal;
monitor_printf(mon, "%s:\n",
MigrationParameter_str(
MIGRATION_PARAMETER_BLOCK_BITMAP_MAPPING));
for (bmnal = params->block_bitmap_mapping;
bmnal;
bmnal = bmnal->next)
{
const BitmapMigrationNodeAlias *bmna = bmnal->value;
const BitmapMigrationBitmapAliasList *bmbal;
monitor_printf(mon, " '%s' -> '%s'\n",
bmna->node_name, bmna->alias);
for (bmbal = bmna->bitmaps; bmbal; bmbal = bmbal->next) {
const BitmapMigrationBitmapAlias *bmba = bmbal->value;
monitor_printf(mon, " '%s' -> '%s'\n",
bmba->name, bmba->alias);
}
}
}
monitor_printf(mon, "%s: %" PRIu64 " ms\n",
MigrationParameter_str(MIGRATION_PARAMETER_X_VCPU_DIRTY_LIMIT_PERIOD),
params->x_vcpu_dirty_limit_period);
monitor_printf(mon, "%s: %" PRIu64 " MB/s\n",
MigrationParameter_str(MIGRATION_PARAMETER_VCPU_DIRTY_LIMIT),
params->vcpu_dirty_limit);
assert(params->has_mode);
monitor_printf(mon, "%s: %s\n",
MigrationParameter_str(MIGRATION_PARAMETER_MODE),
qapi_enum_lookup(&MigMode_lookup, params->mode));
if (params->has_direct_io) {
monitor_printf(mon, "%s: %s\n",
MigrationParameter_str(
MIGRATION_PARAMETER_DIRECT_IO),
params->direct_io ? "on" : "off");
}
}
qapi_free_MigrationParameters(params);
}
void hmp_loadvm(Monitor *mon, const QDict *qdict)
{
RunState saved_state = runstate_get();
const char *name = qdict_get_str(qdict, "name");
Error *err = NULL;
vm_stop(RUN_STATE_RESTORE_VM);
if (load_snapshot(name, NULL, false, NULL, &err)) {
load_snapshot_resume(saved_state);
}
hmp_handle_error(mon, err);
}
void hmp_savevm(Monitor *mon, const QDict *qdict)
{
Error *err = NULL;
save_snapshot(qdict_get_try_str(qdict, "name"),
true, NULL, false, NULL, &err);
hmp_handle_error(mon, err);
}
void hmp_delvm(Monitor *mon, const QDict *qdict)
{
Error *err = NULL;
const char *name = qdict_get_str(qdict, "name");
delete_snapshot(name, false, NULL, &err);
hmp_handle_error(mon, err);
}
void hmp_migrate_cancel(Monitor *mon, const QDict *qdict)
{
qmp_migrate_cancel(NULL);
}
void hmp_migrate_continue(Monitor *mon, const QDict *qdict)
{
Error *err = NULL;
const char *state = qdict_get_str(qdict, "state");
int val = qapi_enum_parse(&MigrationStatus_lookup, state, -1, &err);
if (val >= 0) {
qmp_migrate_continue(val, &err);
}
hmp_handle_error(mon, err);
}
void hmp_migrate_incoming(Monitor *mon, const QDict *qdict)
{
Error *err = NULL;
const char *uri = qdict_get_str(qdict, "uri");
MigrationChannelList *caps = NULL;
g_autoptr(MigrationChannel) channel = NULL;
if (!migrate_uri_parse(uri, &channel, &err)) {
goto end;
}
QAPI_LIST_PREPEND(caps, g_steal_pointer(&channel));
qmp_migrate_incoming(NULL, true, caps, true, false, &err);
qapi_free_MigrationChannelList(caps);
end:
hmp_handle_error(mon, err);
}
void hmp_migrate_recover(Monitor *mon, const QDict *qdict)
{
Error *err = NULL;
const char *uri = qdict_get_str(qdict, "uri");
qmp_migrate_recover(uri, &err);
hmp_handle_error(mon, err);
}
void hmp_migrate_pause(Monitor *mon, const QDict *qdict)
{
Error *err = NULL;
qmp_migrate_pause(&err);
hmp_handle_error(mon, err);
}
void hmp_migrate_set_capability(Monitor *mon, const QDict *qdict)
{
const char *cap = qdict_get_str(qdict, "capability");
bool state = qdict_get_bool(qdict, "state");
Error *err = NULL;
MigrationCapabilityStatusList *caps = NULL;
MigrationCapabilityStatus *value;
int val;
val = qapi_enum_parse(&MigrationCapability_lookup, cap, -1, &err);
if (val < 0) {
goto end;
}
value = g_malloc0(sizeof(*value));
value->capability = val;
value->state = state;
QAPI_LIST_PREPEND(caps, value);
qmp_migrate_set_capabilities(caps, &err);
qapi_free_MigrationCapabilityStatusList(caps);
end:
hmp_handle_error(mon, err);
}
void hmp_migrate_set_parameter(Monitor *mon, const QDict *qdict)
{
const char *param = qdict_get_str(qdict, "parameter");
const char *valuestr = qdict_get_str(qdict, "value");
Visitor *v = string_input_visitor_new(valuestr);
MigrateSetParameters *p = g_new0(MigrateSetParameters, 1);
uint64_t valuebw = 0;
uint64_t cache_size;
Error *err = NULL;
int val, ret;
val = qapi_enum_parse(&MigrationParameter_lookup, param, -1, &err);
if (val < 0) {
goto cleanup;
}
switch (val) {
case MIGRATION_PARAMETER_THROTTLE_TRIGGER_THRESHOLD:
p->has_throttle_trigger_threshold = true;
visit_type_uint8(v, param, &p->throttle_trigger_threshold, &err);
break;
case MIGRATION_PARAMETER_CPU_THROTTLE_INITIAL:
p->has_cpu_throttle_initial = true;
visit_type_uint8(v, param, &p->cpu_throttle_initial, &err);
break;
case MIGRATION_PARAMETER_CPU_THROTTLE_INCREMENT:
p->has_cpu_throttle_increment = true;
visit_type_uint8(v, param, &p->cpu_throttle_increment, &err);
break;
case MIGRATION_PARAMETER_CPU_THROTTLE_TAILSLOW:
p->has_cpu_throttle_tailslow = true;
visit_type_bool(v, param, &p->cpu_throttle_tailslow, &err);
break;
case MIGRATION_PARAMETER_MAX_CPU_THROTTLE:
p->has_max_cpu_throttle = true;
visit_type_uint8(v, param, &p->max_cpu_throttle, &err);
break;
case MIGRATION_PARAMETER_TLS_CREDS:
p->tls_creds = g_new0(StrOrNull, 1);
p->tls_creds->type = QTYPE_QSTRING;
visit_type_str(v, param, &p->tls_creds->u.s, &err);
break;
case MIGRATION_PARAMETER_TLS_HOSTNAME:
p->tls_hostname = g_new0(StrOrNull, 1);
p->tls_hostname->type = QTYPE_QSTRING;
visit_type_str(v, param, &p->tls_hostname->u.s, &err);
break;
case MIGRATION_PARAMETER_TLS_AUTHZ:
p->tls_authz = g_new0(StrOrNull, 1);
p->tls_authz->type = QTYPE_QSTRING;
visit_type_str(v, param, &p->tls_authz->u.s, &err);
break;
case MIGRATION_PARAMETER_MAX_BANDWIDTH:
p->has_max_bandwidth = true;
/*
* Can't use visit_type_size() here, because it
* defaults to Bytes rather than Mebibytes.
*/
ret = qemu_strtosz_MiB(valuestr, NULL, &valuebw);
if (ret < 0 || valuebw > INT64_MAX
|| (size_t)valuebw != valuebw) {
error_setg(&err, "Invalid size %s", valuestr);
break;
}
p->max_bandwidth = valuebw;
break;
case MIGRATION_PARAMETER_AVAIL_SWITCHOVER_BANDWIDTH:
p->has_avail_switchover_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);
break;
}
p->avail_switchover_bandwidth = valuebw;
break;
case MIGRATION_PARAMETER_DOWNTIME_LIMIT:
p->has_downtime_limit = true;
visit_type_size(v, param, &p->downtime_limit, &err);
break;
case MIGRATION_PARAMETER_X_CHECKPOINT_DELAY:
p->has_x_checkpoint_delay = true;
visit_type_uint32(v, param, &p->x_checkpoint_delay, &err);
break;
case MIGRATION_PARAMETER_MULTIFD_CHANNELS:
p->has_multifd_channels = true;
visit_type_uint8(v, param, &p->multifd_channels, &err);
break;
case MIGRATION_PARAMETER_MULTIFD_COMPRESSION:
p->has_multifd_compression = true;
visit_type_MultiFDCompression(v, param, &p->multifd_compression,
&err);
break;
case MIGRATION_PARAMETER_MULTIFD_ZLIB_LEVEL:
p->has_multifd_zlib_level = true;
visit_type_uint8(v, param, &p->multifd_zlib_level, &err);
break;
case MIGRATION_PARAMETER_MULTIFD_QATZIP_LEVEL:
p->has_multifd_qatzip_level = true;
visit_type_uint8(v, param, &p->multifd_qatzip_level, &err);
break;
case MIGRATION_PARAMETER_MULTIFD_ZSTD_LEVEL:
p->has_multifd_zstd_level = true;
visit_type_uint8(v, param, &p->multifd_zstd_level, &err);
break;
case MIGRATION_PARAMETER_ZERO_PAGE_DETECTION:
p->has_zero_page_detection = true;
visit_type_ZeroPageDetection(v, param, &p->zero_page_detection, &err);
break;
case MIGRATION_PARAMETER_XBZRLE_CACHE_SIZE:
p->has_xbzrle_cache_size = true;
if (!visit_type_size(v, param, &cache_size, &err)) {
break;
}
if (cache_size > INT64_MAX || (size_t)cache_size != cache_size) {
error_setg(&err, "Invalid size %s", valuestr);
break;
}
p->xbzrle_cache_size = cache_size;
break;
case MIGRATION_PARAMETER_MAX_POSTCOPY_BANDWIDTH:
p->has_max_postcopy_bandwidth = true;
visit_type_size(v, param, &p->max_postcopy_bandwidth, &err);
break;
case MIGRATION_PARAMETER_ANNOUNCE_INITIAL:
p->has_announce_initial = true;
visit_type_size(v, param, &p->announce_initial, &err);
break;
case MIGRATION_PARAMETER_ANNOUNCE_MAX:
p->has_announce_max = true;
visit_type_size(v, param, &p->announce_max, &err);
break;
case MIGRATION_PARAMETER_ANNOUNCE_ROUNDS:
p->has_announce_rounds = true;
visit_type_size(v, param, &p->announce_rounds, &err);
break;
case MIGRATION_PARAMETER_ANNOUNCE_STEP:
p->has_announce_step = true;
visit_type_size(v, param, &p->announce_step, &err);
break;
case MIGRATION_PARAMETER_BLOCK_BITMAP_MAPPING:
error_setg(&err, "The block-bitmap-mapping parameter can only be set "
"through QMP");
break;
case MIGRATION_PARAMETER_X_VCPU_DIRTY_LIMIT_PERIOD:
p->has_x_vcpu_dirty_limit_period = true;
visit_type_size(v, param, &p->x_vcpu_dirty_limit_period, &err);
break;
case MIGRATION_PARAMETER_VCPU_DIRTY_LIMIT:
p->has_vcpu_dirty_limit = true;
visit_type_size(v, param, &p->vcpu_dirty_limit, &err);
break;
case MIGRATION_PARAMETER_MODE:
p->has_mode = true;
visit_type_MigMode(v, param, &p->mode, &err);
break;
case MIGRATION_PARAMETER_DIRECT_IO:
p->has_direct_io = true;
visit_type_bool(v, param, &p->direct_io, &err);
break;
default:
g_assert_not_reached();
}
if (err) {
goto cleanup;
}
qmp_migrate_set_parameters(p, &err);
cleanup:
qapi_free_MigrateSetParameters(p);
visit_free(v);
hmp_handle_error(mon, err);
}
void hmp_migrate_start_postcopy(Monitor *mon, const QDict *qdict)
{
Error *err = NULL;
qmp_migrate_start_postcopy(&err);
hmp_handle_error(mon, err);
}
#ifdef CONFIG_REPLICATION
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);
}
#endif
typedef struct HMPMigrationStatus {
QEMUTimer *timer;
Monitor *mon;
} HMPMigrationStatus;
static void hmp_migrate_status_cb(void *opaque)
{
HMPMigrationStatus *status = opaque;
MigrationInfo *info;
info = qmp_query_migrate(NULL);
if (!info->has_status || info->status == MIGRATION_STATUS_ACTIVE ||
info->status == MIGRATION_STATUS_SETUP) {
timer_mod(status->timer, qemu_clock_get_ms(QEMU_CLOCK_REALTIME) + 1000);
} else {
if (info->error_desc) {
error_report("%s", info->error_desc);
}
monitor_resume(status->mon);
timer_free(status->timer);
g_free(status);
}
qapi_free_MigrationInfo(info);
}
void hmp_migrate(Monitor *mon, const QDict *qdict)
{
bool detach = qdict_get_try_bool(qdict, "detach", false);
bool resume = qdict_get_try_bool(qdict, "resume", false);
const char *uri = qdict_get_str(qdict, "uri");
Error *err = NULL;
g_autoptr(MigrationChannelList) caps = NULL;
g_autoptr(MigrationChannel) channel = NULL;
if (!migrate_uri_parse(uri, &channel, &err)) {
hmp_handle_error(mon, err);
return;
}
QAPI_LIST_PREPEND(caps, g_steal_pointer(&channel));
qmp_migrate(NULL, true, caps, false, false, true, resume, &err);
if (hmp_handle_error(mon, err)) {
return;
}
if (!detach) {
HMPMigrationStatus *status;
if (monitor_suspend(mon) < 0) {
monitor_printf(mon, "terminal does not allow synchronous "
"migration, continuing detached\n");
return;
}
status = g_malloc0(sizeof(*status));
status->mon = mon;
status->timer = timer_new_ms(QEMU_CLOCK_REALTIME, hmp_migrate_status_cb,
status);
timer_mod(status->timer, qemu_clock_get_ms(QEMU_CLOCK_REALTIME));
}
}
void migrate_set_capability_completion(ReadLineState *rs, int nb_args,
const char *str)
{
size_t len;
len = strlen(str);
readline_set_completion_index(rs, len);
if (nb_args == 2) {
int i;
for (i = 0; i < MIGRATION_CAPABILITY__MAX; i++) {
readline_add_completion_of(rs, str, MigrationCapability_str(i));
}
} else if (nb_args == 3) {
readline_add_completion_of(rs, str, "on");
readline_add_completion_of(rs, str, "off");
}
}
void migrate_set_parameter_completion(ReadLineState *rs, int nb_args,
const char *str)
{
size_t len;
len = strlen(str);
readline_set_completion_index(rs, len);
if (nb_args == 2) {
int i;
for (i = 0; i < MIGRATION_PARAMETER__MAX; i++) {
readline_add_completion_of(rs, str, MigrationParameter_str(i));
}
}
}
static void vm_completion(ReadLineState *rs, const char *str)
{
size_t len;
BlockDriverState *bs;
BdrvNextIterator it;
GRAPH_RDLOCK_GUARD_MAINLOOP();
len = strlen(str);
readline_set_completion_index(rs, len);
for (bs = bdrv_first(&it); bs; bs = bdrv_next(&it)) {
SnapshotInfoList *snapshots, *snapshot;
bool ok = false;
if (bdrv_can_snapshot(bs)) {
ok = bdrv_query_snapshot_info_list(bs, &snapshots, NULL) == 0;
}
if (!ok) {
continue;
}
snapshot = snapshots;
while (snapshot) {
readline_add_completion_of(rs, str, snapshot->value->name);
readline_add_completion_of(rs, str, snapshot->value->id);
snapshot = snapshot->next;
}
qapi_free_SnapshotInfoList(snapshots);
}
}
void delvm_completion(ReadLineState *rs, int nb_args, const char *str)
{
if (nb_args == 2) {
vm_completion(rs, str);
}
}
void loadvm_completion(ReadLineState *rs, int nb_args, const char *str)
{
if (nb_args == 2) {
vm_completion(rs, str);
}
}
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