Proxmox-Port/qemu
1
0
Fork 0
mirror of https://github.com/qemu/qemu.git synced 2025-08-15 13:47:03 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity
master
qemu/migration/migration-hmp-cmds.c
Daniel P. Berrangé eaec556bc8 migration: show error message when postcopy fails 
The 'info migrate' command only shows the error message when the
migration state is 'failed'. When postcopy is used, however,
the 'postcopy-paused' state is used instead of 'failed', so we
must show the error message there too.

Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Reviewed-by: Fabiano Rosas <farosas@suse.de>
Link: https://lore.kernel.org/qemu-devel/20250721133913.2914669-1-berrange@redhat.com
[line break to satisfy checkpatch]
Signed-off-by: Fabiano Rosas <farosas@suse.de>
2025-07-22 19:39:29 -03:00

894 lines
30 KiB
C
Raw Permalink Blame History

/*
* 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);
}
static const gchar *format_time_str(uint64_t us)
{
const char *units[] = {"us", "ms", "sec"};
int index = 0;
while (us >= 1000 && index + 1 < ARRAY_SIZE(units)) {
us /= 1000;
index++;
}
return g_strdup_printf("%"PRIu64" %s", us, units[index]);
}
static void migration_dump_blocktime(Monitor *mon, MigrationInfo *info)
{
if (info->has_postcopy_blocktime) {
monitor_printf(mon, "Postcopy Blocktime (ms): %" PRIu32 "\n",
info->postcopy_blocktime);
}
if (info->has_postcopy_vcpu_blocktime) {
uint32List *item = info->postcopy_vcpu_blocktime;
const char *sep = "";
int count = 0;
monitor_printf(mon, "Postcopy vCPU Blocktime (ms):\n [");
while (item) {
monitor_printf(mon, "%s%"PRIu32, sep, item->value);
item = item->next;
/* Each line 10 vcpu results, newline if there's more */
sep = ((++count % 10 == 0) && item) ? ",\n " : ", ";
}
monitor_printf(mon, "]\n");
}
if (info->has_postcopy_latency) {
monitor_printf(mon, "Postcopy Latency (ns): %" PRIu64 "\n",
info->postcopy_latency);
}
if (info->has_postcopy_non_vcpu_latency) {
monitor_printf(mon, "Postcopy non-vCPU Latencies (ns): %" PRIu64 "\n",
info->postcopy_non_vcpu_latency);
}
if (info->has_postcopy_vcpu_latency) {
uint64List *item = info->postcopy_vcpu_latency;
const char *sep = "";
int count = 0;
monitor_printf(mon, "Postcopy vCPU Latencies (ns):\n [");
while (item) {
monitor_printf(mon, "%s%"PRIu64, sep, item->value);
item = item->next;
/* Each line 10 vcpu results, newline if there's more */
sep = ((++count % 10 == 0) && item) ? ",\n " : ", ";
}
monitor_printf(mon, "]\n");
}
if (info->has_postcopy_latency_dist) {
uint64List *item = info->postcopy_latency_dist;
int count = 0;
monitor_printf(mon, "Postcopy Latency Distribution:\n");
while (item) {
g_autofree const gchar *from = format_time_str(1UL << count);
g_autofree const gchar *to = format_time_str(1UL << (count + 1));
monitor_printf(mon, " [ %8s - %8s ]: %10"PRIu64"\n",
from, to, item->value);
item = item->next;
count++;
}
}
}
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: \t\t%s",
MigrationStatus_str(info->status));
if ((info->status == MIGRATION_STATUS_FAILED ||
info->status == MIGRATION_STATUS_POSTCOPY_PAUSED) &&
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): \t\ttotal=%" 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) {
g_autofree char *str_psize = size_to_str(info->ram->page_size);
g_autofree char *str_total = size_to_str(info->ram->total);
g_autofree char *str_transferred = size_to_str(info->ram->transferred);
g_autofree char *str_remaining = size_to_str(info->ram->remaining);
g_autofree char *str_precopy = size_to_str(info->ram->precopy_bytes);
g_autofree char *str_multifd = size_to_str(info->ram->multifd_bytes);
g_autofree char *str_postcopy = size_to_str(info->ram->postcopy_bytes);
monitor_printf(mon, "RAM info:\n");
monitor_printf(mon, " Throughput (Mbps): \t%0.2f\n",
info->ram->mbps);
monitor_printf(mon, " Sizes: \t\tpagesize=%s, total=%s\n",
str_psize, str_total);
monitor_printf(mon, " Transfers: \t\ttransferred=%s, remain=%s\n",
str_transferred, str_remaining);
monitor_printf(mon, " Channels: \t\tprecopy=%s, "
"multifd=%s, postcopy=%s",
str_precopy, str_multifd, str_postcopy);
if (info->vfio) {
g_autofree char *str_vfio = size_to_str(info->vfio->transferred);
monitor_printf(mon, ", vfio=%s", str_vfio);
}
monitor_printf(mon, "\n");
monitor_printf(mon, " Page Types: \tnormal=%" PRIu64
", zero=%" PRIu64 "\n",
info->ram->normal, info->ram->duplicate);
monitor_printf(mon, " Page Rates (pps): \ttransfer=%" PRIu64,
info->ram->pages_per_second);
if (info->ram->dirty_pages_rate) {
monitor_printf(mon, ", dirty=%" PRIu64,
info->ram->dirty_pages_rate);
}
monitor_printf(mon, "\n");
monitor_printf(mon, " Others: \t\tdirty_syncs=%" PRIu64,
info->ram->dirty_sync_count);
if (info->ram->postcopy_requests) {
monitor_printf(mon, ", postcopy_req=%" PRIu64,
info->ram->postcopy_requests);
}
if (info->ram->downtime_bytes) {
monitor_printf(mon, ", downtime_bytes=%" 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);
}
migration_dump_blocktime(mon, info);
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);
}
}
Reference in New Issue View Git Blame Copy Permalink