Re: [libvirt] [PATCH 2/4] backup: Add two new qemu capabilities

Add two capabilities for testing features required for the upcoming virDomainBackupBegin: use block-dirty-bitmap-merge as the generic witness of bitmap support needed for checkpoints (since all of the bitmap management functionalities were finalized in the same qemu 4.0 release), and the bitmap parameter to nbd-server-add for pull-mode backup support. Even though both capabilities are likely to be present or absent together (that is, it is unlikely to encounter a qemu that backports only one of the two), it still makes sense to keep two capabilities as the two uses are orthogonal (full backups don't require checkpoints, push mode backups don't require NBD bitmap support, and checkpoints can be used for more than just incremental backups). Signed-off-by: Eric Blake <eblake(a)redhat.com&gt; --- src/qemu/qemu_capabilities.h | 4 ++++ src/qemu/qemu_capabilities.c | 6 ++++++ tests/qemucapabilitiesdata/caps_4.0.0.aarch64.xml | 2 ++ tests/qemucapabilitiesdata/caps_4.0.0.ppc64.xml | 2 ++ tests/qemucapabilitiesdata/caps_4.0.0.riscv32.xml | 2 ++ tests/qemucapabilitiesdata/caps_4.0.0.riscv64.xml | 2 ++ tests/qemucapabilitiesdata/caps_4.0.0.s390x.xml | 2 ++ tests/qemucapabilitiesdata/caps_4.0.0.x86_64.xml | 2 ++ 8 files changed, 22 insertions(+)