diff options
Diffstat (limited to 'arch/x86/mm/mem_encrypt_amd.c')
| -rw-r--r-- | arch/x86/mm/mem_encrypt_amd.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/arch/x86/mm/mem_encrypt_amd.c b/arch/x86/mm/mem_encrypt_amd.c index e8f7953fda83..f6d038e2cd8e 100644 --- a/arch/x86/mm/mem_encrypt_amd.c +++ b/arch/x86/mm/mem_encrypt_amd.c @@ -21,6 +21,7 @@ #include <linux/dma-mapping.h> #include <linux/virtio_config.h> #include <linux/cc_platform.h> +#include <linux/platform-feature.h> #include <asm/tlbflush.h> #include <asm/fixmap.h> @@ -242,6 +243,9 @@ void __init sev_setup_arch(void) size = total_mem * 6 / 100; size = clamp_val(size, IO_TLB_DEFAULT_SIZE, SZ_1G); swiotlb_adjust_size(size); + + /* Set restricted memory access for virtio. */ + platform_set(PLATFORM_VIRTIO_RESTRICTED_MEM_ACCESS); } static unsigned long pg_level_to_pfn(int level, pte_t *kpte, pgprot_t *ret_prot) |