CONFIG_ARCH_HAS_RESTRICTED_VIRTIO_MEMORY_ACCESS (not configurable)

configname: CONFIG_ARCH_HAS_RESTRICTED_VIRTIO_MEMORY_ACCESS

Linux Kernel Configuration
└─>Device Drivers
└─>ARCH_HAS_RESTRICTED_VIRTIO_MEMORY_ACCESS
In linux kernel since version 5.1 (release Date: 2019-05-05)  
This option is selected if the architecture may need to enforce
VIRTIO_F_ACCESS_PLATFORM

is depended by
CONFIG_AMD_MEM_ENCRYPT