+ VirtioMmioDeviceRead, // ReadDevice\r
+ VirtioMmioAllocateSharedPages, // AllocateSharedPages\r
+ VirtioMmioFreeSharedPages, // FreeSharedPages\r
+ VirtioMmioMapSharedBuffer, // MapSharedBuffer\r
+ VirtioMmioUnmapSharedBuffer // UnmapSharedBuffer\r