diff options
Diffstat (limited to 'arch/x86/include/uapi')
| -rw-r--r-- | arch/x86/include/uapi/asm/e820/types.h | 37 |
1 files changed, 34 insertions, 3 deletions
diff --git a/arch/x86/include/uapi/asm/e820/types.h b/arch/x86/include/uapi/asm/e820/types.h index 54b812e80bac..65c7a1beab22 100644 --- a/arch/x86/include/uapi/asm/e820/types.h +++ b/arch/x86/include/uapi/asm/e820/types.h @@ -6,14 +6,45 @@ #ifndef __ASSEMBLY__ +enum e820_type { + E820_RAM = 1, + E820_RESERVED = 2, + E820_ACPI = 3, + E820_NVS = 4, + E820_UNUSABLE = 5, + E820_PMEM = 7, + + /* + * This is a non-standardized way to represent ADR or + * NVDIMM regions that persist over a reboot. + * + * The kernel will ignore their special capabilities + * unless the CONFIG_X86_PMEM_LEGACY=y option is set. + * + * ( Note that older platforms also used 6 for the same + * type of memory, but newer versions switched to 12 as + * 6 was assigned differently. Some time they will learn... ) + */ + E820_PRAM = 12, + + /* + * Reserved RAM used by the kernel itself if + * CONFIG_INTEL_TXT=y is enabled, memory of this type + * will be included in the S3 integrity calculation + * and so should not include any memory that the BIOS + * might alter over the S3 transition: + */ + E820_RESERVED_KERN = 128, +}; + /* * A single E820 map entry, describing a memory range of [addr...addr+size-1], * of 'type' memory type: */ struct e820_entry { - __u64 addr; - __u64 size; - __u32 type; + __u64 addr; + __u64 size; + enum e820_type type; } __attribute__((packed)); #endif /* __ASSEMBLY__ */ |