motorhead/qemu
1
0
Fork 0
mirror of https://github.com/Motorhead1991/qemu.git synced 2025-07-30 22:03:54 -06:00
Code Issues Projects Releases Packages Wiki Activity Actions

COLO: Remove colo_state migration struct

Browse source 
We need to know if migration is going into COLO state for
incoming side before start normal migration.

Instead by using the VMStateDescription to send colo_state
from source side to destination side, we use MIG_CMD_ENABLE_COLO
to indicate whether COLO is enabled or not.

Signed-off-by: zhanghailiang <zhang.zhanghailiang@huawei.com>
Signed-off-by: Zhang Chen <zhangckid@gmail.com>
Signed-off-by: Zhang Chen <chen.zhang@intel.com>
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
This commit is contained in:
Zhang Chen 2018-09-03 12:38:47 +08:00 • committed by Jason Wang
parent 8e48ac9586
commit aad555c229
9 changed files with 57 additions and 83 deletions
Download patch file Download diff file Expand all files Collapse all files

23
migration/migration.c
View file

@ -296,6 +296,22 @@ int migrate_send_rp_req_pages(MigrationIncomingState *mis, const char *rbname,
return migrate_send_rp_message(mis, msg_type, msglen, bufc);
}
static bool migration_colo_enabled;
bool migration_incoming_colo_enabled(void)
{
return migration_colo_enabled;
}
void migration_incoming_disable_colo(void)
{
migration_colo_enabled = false;
}
void migration_incoming_enable_colo(void)
{
migration_colo_enabled = true;
}
void qemu_start_incoming_migration(const char *uri, Error **errp)
{
const char *p;
@ -418,7 +434,7 @@ static void process_incoming_migration_co(void *opaque)
}
/* we get COLO info, and know if we are in COLO mode */
if (!ret && migration_incoming_enable_colo()) {
if (!ret && migration_incoming_colo_enabled()) {
/* Make sure all file formats flush their mutable metadata */
bdrv_invalidate_cache_all(&local_err);
if (local_err) {
@ -3025,6 +3041,11 @@ static void *migration_thread(void *opaque)
qemu_savevm_send_postcopy_advise(s->to_dst_file);
}
if (migrate_colo_enabled()) {
/* Notify migration destination that we enable COLO */
qemu_savevm_send_colo_enable(s->to_dst_file);
}
qemu_savevm_state_setup(s->to_dst_file);
s->setup_time = qemu_clock_get_ms(QEMU_CLOCK_HOST) - setup_start;