[PATCH] efi: define extra efi_memory_type flags

Ahmad Fatoum a.fatoum at pengutronix.de
Wed Jul 31 00:13:21 PDT 2024


We already define a number of memory types, but we are missing some
bits in-between. Add them for completion's sake.

Signed-off-by: Ahmad Fatoum <a.fatoum at pengutronix.de>
---
 include/efi.h | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/include/efi.h b/include/efi.h
index a27cbe1f498b..217e3d9f56ff 100644
--- a/include/efi.h
+++ b/include/efi.h
@@ -110,10 +110,16 @@ enum efi_memory_type {
 #define EFI_MEMORY_WC		((u64)0x0000000000000002ULL)	/* write-coalescing */
 #define EFI_MEMORY_WT		((u64)0x0000000000000004ULL)	/* write-through */
 #define EFI_MEMORY_WB		((u64)0x0000000000000008ULL)	/* write-back */
+#define EFI_MEMORY_UCE		((u64)0x0000000000000010ULL)	/* uncached, exported */
 #define EFI_MEMORY_WP		((u64)0x0000000000001000ULL)	/* write-protect */
 #define EFI_MEMORY_RP		((u64)0x0000000000002000ULL)	/* read-protect */
 #define EFI_MEMORY_XP		((u64)0x0000000000004000ULL)	/* execute-protect */
+#define EFI_MEMORY_NV		((u64)0x0000000000008000ULL)	/* non-volatile */
 #define EFI_MEMORY_RUNTIME	((u64)0x8000000000000000ULL)	/* range requires runtime mapping */
+#define EFI_MEMORY_MORE_RELIABLE \
+				((u64)0x0000000000010000ULL)	/* higher reliability */
+#define EFI_MEMORY_RO		((u64)0x0000000000020000ULL)	/* read-only */
+#define EFI_MEMORY_SP		((u64)0x0000000000040000ULL)	/* specific-purpose memory (SPM) */
 #define EFI_MEMORY_DESCRIPTOR_VERSION	1
 
 #define EFI_PAGE_SHIFT		12
-- 
2.39.2




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