From c3a40cce2a9765de6776e2c099d59879e49dfe4b Mon Sep 17 00:00:00 2001
From: Eugeniu Rosca <roscaeugeniu@gmail.com>
Date: Sat, 14 Jul 2018 22:53:31 +0200
Subject: [PATCH] efi: Add EFI_MEMORY_{NV, MORE_RELIABLE, RO} attributes
With this update, the memory attributes are in sync with Linux
kernel v4.18-rc4. They also match page 190 of UEFI 2.7 spec [1].
[1] http://www.uefi.org/sites/default/files/resources/UEFI_Spec_2_7.pdf
Suggested-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Signed-off-by: Eugeniu Rosca <erosca@de.adit-jv.com>
Reviewed-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Signed-off-by: Alexander Graf <agraf@suse.de>
---
cmd/efi.c | 3 +++
include/efi.h | 4 ++++
2 files changed, 7 insertions(+)
diff --git a/cmd/efi.c b/cmd/efi.c
index 92a565f713..366a79a964 100644
--- a/cmd/efi.c
+++ b/cmd/efi.c
@@ -39,6 +39,9 @@ static struct attr_info {
{ EFI_MEMORY_WP, "write-protect" },
{ EFI_MEMORY_RP, "read-protect" },
{ EFI_MEMORY_XP, "execute-protect" },
+ { EFI_MEMORY_NV, "non-volatile" },
+ { EFI_MEMORY_MORE_RELIABLE, "higher reliability" },
+ { EFI_MEMORY_RO, "read-only" },
{ EFI_MEMORY_RUNTIME, "needs runtime mapping" }
};
diff --git a/include/efi.h b/include/efi.h
index cfdccd7693..7e7c1cafc2 100644
--- a/include/efi.h
+++ b/include/efi.h
@@ -178,6 +178,10 @@ enum efi_mem_type {
#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_MORE_RELIABLE \
+ ((u64)0x0000000000010000ULL) /* higher reliability */
+#define EFI_MEMORY_RO ((u64)0x0000000000020000ULL) /* read-only */
#define EFI_MEMORY_RUNTIME ((u64)0x8000000000000000ULL) /* range requires runtime mapping */
#define EFI_MEM_DESC_VERSION 1
--
2.39.5