motorhead/qemu
1
0
Fork 0
mirror of https://github.com/Motorhead1991/qemu.git synced 2025-08-01 06:43:53 -06:00
Code Issues Projects Releases Packages Wiki Activity Actions

migration: Add thread pool of optional load threads

Browse source 
Some drivers might want to make use of auxiliary helper threads during VM
state loading, for example to make sure that their blocking (sync) I/O
operations don't block the rest of the migration process.

Add a migration core managed thread pool to facilitate this use case.

The migration core will wait for these threads to finish before
(re)starting the VM at destination.

Reviewed-by: Fabiano Rosas <farosas@suse.de>
Signed-off-by: Maciej S. Szmigiero <maciej.szmigiero@oracle.com>
Link: https://lore.kernel.org/qemu-devel/b09fd70369b6159c75847e69f235cb908b02570c.1741124640.git.maciej.szmigiero@oracle.com
Signed-off-by: Cédric Le Goater <clg@redhat.com>
This commit is contained in:
Maciej S. Szmigiero 2025-03-04 23:03:36 +01:00 • committed by Cédric Le Goater
parent 18eb55546a
commit b1937fd1eb
6 changed files with 105 additions and 4 deletions
Download patch file Download diff file Expand all files Collapse all files

2
migration/migration.c
View file

@ -419,7 +419,7 @@ void migration_incoming_state_destroy(void)
* BQL and retake unconditionally.
*/
assert(bql_locked());
qemu_loadvm_state_cleanup();
qemu_loadvm_state_cleanup(mis);
if (mis->to_src_file) {
/* Tell source that we are done */