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qemu: Add support for migrate-recover QMP command

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This command tells QEMU to start listening for an incoming post-copy
recovery connection. Just like migrate-incoming is used for starting
fresh migration on the destination host.

Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
Reviewed-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Pavel Hrdina <phrdina@redhat.com>
This commit is contained in:
Jiri Denemark 2022-05-10 15:20:25 +02:00
parent 8e0d86fb6a
commit 8c4da941c0
5 changed files with 41 additions and 0 deletions
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12
src/qemu/qemu_monitor.c
View File

@ -4521,3 +4521,15 @@ qemuMonitorChangeMemoryRequestedSize(qemuMonitor *mon,
return qemuMonitorJSONChangeMemoryRequestedSize(mon, alias, requestedsize);
}
int
qemuMonitorMigrateRecover(qemuMonitor *mon,
const char *uri)
{
VIR_DEBUG("uri=%s", uri);
QEMU_CHECK_MONITOR(mon);
return qemuMonitorJSONMigrateRecover(mon, uri);
}

4
src/qemu/qemu_monitor.h
View File

@ -1545,3 +1545,7 @@ int
qemuMonitorChangeMemoryRequestedSize(qemuMonitor *mon,
const char *alias,
unsigned long long requestedsize);
int
qemuMonitorMigrateRecover(qemuMonitor *mon,
const char *uri);

19
src/qemu/qemu_monitor_json.c
View File

@ -8970,3 +8970,22 @@ qemuMonitorJSONChangeMemoryRequestedSize(qemuMonitor *mon,
return qemuMonitorJSONSetObjectProperty(mon, path, "requested-size", &prop);
}
int
qemuMonitorJSONMigrateRecover(qemuMonitor *mon,
const char *uri)
{
g_autoptr(virJSONValue) cmd = NULL;
g_autoptr(virJSONValue) reply = NULL;
if (!(cmd = qemuMonitorJSONMakeCommand("migrate-recover",
"s:uri", uri,
NULL)))
return -1;
if (qemuMonitorJSONCommand(mon, cmd, &reply) < 0)
return -1;
return qemuMonitorJSONCheckError(cmd, reply);
}

4
src/qemu/qemu_monitor_json.h
View File

@ -872,3 +872,7 @@ int
qemuMonitorJSONChangeMemoryRequestedSize(qemuMonitor *mon,
const char *alias,
unsigned long long requestedsize);
int
qemuMonitorJSONMigrateRecover(qemuMonitor *mon,
const char *uri);

2
tests/qemumonitorjsontest.c
View File

@ -1210,6 +1210,7 @@ GEN_TEST_FUNC(qemuMonitorJSONSetMigrationDowntime, 1)
GEN_TEST_FUNC(qemuMonitorJSONMigrate, QEMU_MONITOR_MIGRATE_BACKGROUND |
QEMU_MONITOR_MIGRATE_NON_SHARED_DISK |
QEMU_MONITOR_MIGRATE_NON_SHARED_INC, "tcp:localhost:12345")
GEN_TEST_FUNC(qemuMonitorJSONMigrateRecover, "tcp://destination.host:54321");
GEN_TEST_FUNC(qemuMonitorJSONDump, "dummy_protocol", "elf",
true)
GEN_TEST_FUNC(qemuMonitorJSONGraphicsRelocate, VIR_DOMAIN_GRAPHICS_TYPE_SPICE,
@ -3109,6 +3110,7 @@ mymain(void)
DO_TEST_GEN_DEPRECATED(qemuMonitorJSONSetMigrationSpeed, true);
DO_TEST_GEN_DEPRECATED(qemuMonitorJSONSetMigrationDowntime, true);
DO_TEST_GEN(qemuMonitorJSONMigrate);
DO_TEST_GEN(qemuMonitorJSONMigrateRecover);
DO_TEST_GEN(qemuMonitorJSONDump);
DO_TEST_GEN(qemuMonitorJSONGraphicsRelocate);
DO_TEST_GEN(qemuMonitorJSONRemoveNetdev);