xen: mapcache: Refactor xen_map_cache for multi-instance

Make xen_map_cache take a MapCache as argument. This is in
prepaparation to support multiple map caches.

No functional changes.

Signed-off-by: Edgar E. Iglesias <edgar.iglesias@amd.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Stefano Stabellini <sstabellini@kernel.org>
Message-ID: <20240430164939.925307-5-edgar.iglesias@gmail.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
1 file changed