drivers: vhost: add Xen MMIO VirtIO backend

Implements VirtIO backend over Xen MMIO interface

Signed-off-by: TOKITA Hiroshi <[email protected]>

Author: soburi

drivers/vhost/CMakeLists.txt

@@ -4,3 +4,4 @@
 zephyr_library()
 
 zephyr_library_sources_ifdef(CONFIG_VHOST vringh.c)
+zephyr_library_sources_ifdef(CONFIG_VHOST_XEN_MMIO vhost_xen_mmio.c)

drivers/vhost/Kconfig

@@ -8,6 +8,13 @@ config VHOST
 
 if VHOST
 
+config VHOST_XEN_MMIO
+	bool "support for MMIO-based VIRTIO backend on Xen hypervisor"
+	default y
+	depends on DT_HAS_XEN_VHOST_MMIO_ENABLED
+	help
+	  Enable VIRTIO-MMIO backedn on Xen hypervisor
+
 endif # VIRTIO
 
 module = VHOST