Re: [libvirt] [PATCH 4/5] qemu: migration: selective block device migration

Implement a `migrate_disks' parameters for the QEMU driver. This multi- value parameter can be used to explicitly specify what block devices are to be migrated using the NBD server. Tunnelled migration using NBD is to be done.

diff --git a/src/qemu/qemu_migration.c b/src/qemu/qemu_migration.c index eb70f29..60c09d8 100644 --- a/src/qemu/qemu_migration.c +++ b/src/qemu/qemu_migration.c

@@ -1864,9 +1884,10 @@ qemuMigrationCancelDriveMirror(virQEMUDriverPtr driver, for (i = 0; i < vm->def->ndisks; i++) { virDomainDiskDefPtr disk = vm->def->disks[i]; - /* skip shared, RO and source-less disks */ - if (disk->src->shared || disk->src->readonly || - !virDomainDiskGetSource(disk)) + /* check whether disk should be migrated */ + /* TODO: pass migrate_disks here or loookup list of + * disks under migration using some kind of qemu monitor command */ + if (!qemuMigrateDisk(disk, NULL))