xen: memory : Add new XENMAPSPACE type XENMAPSPACE_dev_mmio

Add a new type of Xen map space for Dom0 to map device's MMIO region.

Signed-off-by: Shannon Zhao <shannon.zhao@linaro.org>
Reviewed-by: Julien Grall <julien.grall@arm.com>
Tested-by: Julien Grall <julien.grall@arm.com>

diff --git a/include/xen/interface/memory.h b/include/xen/interface/memory.h
index 2ecfe4f700d94ce9adefdf423e235fe7c5e3d14c..9aa8988cb340ea6bbefbfbbdad88be127452e3c8 100644 (file)
--- a/include/xen/interface/memory.h
+++ b/include/xen/interface/memory.h
@@ -160,6 +160,7 @@ DEFINE_GUEST_HANDLE_STRUCT(xen_machphys_mapping_t);
 #define XENMAPSPACE_gmfn_foreign 4 /* GMFN from another dom,
                                    * XENMEM_add_to_physmap_range only.
                                    */
+#define XENMAPSPACE_dev_mmio     5 /* device mmio region */
 
 /*
  * Sets the GPFN at which a particular page appears in the specified guest's