diff options
| -rw-r--r-- | arch/x86/include/asm/acpi.h | 11 | ||||
| -rw-r--r-- | arch/x86/include/asm/pgtable_types.h | 1 |
2 files changed, 7 insertions, 5 deletions
diff --git a/arch/x86/include/asm/acpi.h b/arch/x86/include/asm/acpi.h index 562286fa151f..72d867f6b518 100644 --- a/arch/x86/include/asm/acpi.h +++ b/arch/x86/include/asm/acpi.h @@ -160,12 +160,13 @@ static inline pgprot_t arch_apei_get_mem_attribute(phys_addr_t addr) * you call efi_mem_attributes() during boot and at runtime, * you could theoretically see different attributes. * - * Since we are yet to see any x86 platforms that require - * anything other than PAGE_KERNEL (some arm64 platforms - * require the equivalent of PAGE_KERNEL_NOCACHE), return that - * until we know differently. + * We are yet to see any x86 platforms that require anything + * other than PAGE_KERNEL (some ARM64 platforms require the + * equivalent of PAGE_KERNEL_NOCACHE). Additionally, if SME + * is active, the ACPI information will not be encrypted, + * so return PAGE_KERNEL_NOENC until we know differently. */ - return PAGE_KERNEL; + return PAGE_KERNEL_NOENC; } #endif diff --git a/arch/x86/include/asm/pgtable_types.h b/arch/x86/include/asm/pgtable_types.h index 6c55973ebab8..399261ce904c 100644 --- a/arch/x86/include/asm/pgtable_types.h +++ b/arch/x86/include/asm/pgtable_types.h @@ -211,6 +211,7 @@ enum page_cache_mode { #define __PAGE_KERNEL_NOENC_WP (__PAGE_KERNEL_WP) #define PAGE_KERNEL __pgprot(__PAGE_KERNEL | _PAGE_ENC) +#define PAGE_KERNEL_NOENC __pgprot(__PAGE_KERNEL) #define PAGE_KERNEL_RO __pgprot(__PAGE_KERNEL_RO | _PAGE_ENC) #define PAGE_KERNEL_EXEC __pgprot(__PAGE_KERNEL_EXEC | _PAGE_ENC) #define PAGE_KERNEL_EXEC_NOENC __pgprot(__PAGE_KERNEL_EXEC) |