[PATCH 02/19] qemu: capabilities: Introduce QEMU_CAPS_MIGRATION_PARAM_BLOCK_BITMAP_MAPPING

[Jiri Denemark]

On Thu, Feb 11, 2021 at 16:37:41 +0100, Peter Krempa wrote:
> The capability represents qemu's ability to setup mappings for migrating
> block dirty bitmaps and is based on presence of the 'transform' property
> of the 'block-bitmap-mapping' property of 'migrate-set-parameters' QMP
> command.
> 
> Signed-off-by: Peter Krempa <pkrempa at redhat.com>
> ---
>  src/qemu/qemu_capabilities.c | 2 ++
>  src/qemu/qemu_capabilities.h | 1 +
>  2 files changed, 3 insertions(+)
> 
> diff --git a/src/qemu/qemu_capabilities.c b/src/qemu/qemu_capabilities.c
> index ccf810ff96..38555dde98 100644
> --- a/src/qemu/qemu_capabilities.c
> +++ b/src/qemu/qemu_capabilities.c
> @@ -616,6 +616,7 @@ VIR_ENUM_IMPL(virQEMUCaps,
>                "vhost-user-blk",
>                "cpu-max",
>                "memory-backend-file.x-use-canonical-path-for-ramblock-id",
> +              "migration-param.block-bitmap-mapping",
>      );
> 
> 
> @@ -1549,6 +1550,7 @@ static struct virQEMUCapsStringFlags virQEMUCapsQMPSchemaQueries[] = {
>      { "migrate-set-parameters/arg-type/xbzrle-cache-size", QEMU_CAPS_MIGRATION_PARAM_XBZRLE_CACHE_SIZE },
>      { "set-numa-node/arg-type/+hmat-lb", QEMU_CAPS_NUMA_HMAT },
>      { "netdev_add/arg-type/+vhost-vdpa", QEMU_CAPS_NETDEV_VHOST_VDPA },
> +    { "migrate-set-parameters/arg-type/block-bitmap-mapping/transform", QEMU_CAPS_MIGRATION_PARAM_BLOCK_BITMAP_MAPPING },
>  };
> 

So how is it possible this change is not reflected in
tests/qemucapabilitiesdata/caps_6.0.0.x86_64.xml after the previous
patch updated QEMU replies? Interestingly enough, tests pass after this
patch so either the capability detection is not working or QEMU replies
do not actually contain what you're looking for here.

Jirka