Re: [libvirt] [PATCH v2 60/73] qemu: Check remote caps when enabling always-on capabilities

When an always-on migration capability is supposed to be enabled on both sides of migration, each side can only enable the feature if it is enabled by the other side. Thus the source host sends a list of supported migration capabilities in the migration cookie generated in the Begin phase. The destination host consumes the list in the Prepare phase and decides what capabilities can be enabled when starting a QEMU process for incoming migration. Once done the destination sends the list of supported capabilities back to the source where it is used during the Perform phase to determine what capabilities can be automatically enabled. Signed-off-by: Jiri Denemark <jdenemar(a)redhat.com&gt; --- src/qemu/qemu_migration.c | 17 ++++++++++++----- src/qemu/qemu_migration_params.c | 22 ++++++++++++++++++++-- src/qemu/qemu_migration_params.h | 3 ++- 3 files changed, 34 insertions(+), 8 deletions(-)