From 61915c4144ab490de797b540e840bc8a09256d49 Mon Sep 17 00:00:00 2001 From: Malgorzata Kukiello Date: Thu, 24 Sep 2020 18:21:32 +0800 Subject: MdePkg/UefiSpec: separate page access bitmask from SP and CRYPTO caps REF:https://bugzilla.tianocore.org/show_bug.cgi?id=2982 Operating systems are capable of treating SP and CRYPTO memory capabilities and not as attributes. This means that these capabilites cannot be hidden from OSs. For this reason, the SP and CRYPTO bits should be separated from the bitmask that we use for hiding the page-access attributes. Common mask for ATTRIBUTES was introduced in 3bd5c994c879f78e8e3d5346dc3b627f199291aa Signed-off-by: Malgorzata Kukiello Cc: Michael D Kinney Cc: Liming Gao Cc: Zhiguang Liu Cc: Oleksiy Yakovlev Cc: Ard Biesheuvel (ARM address) Reviewed-by: Laszlo Ersek Reviewed-by: Liming Gao --- MdePkg/Include/Uefi/UefiSpec.h | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'MdePkg') diff --git a/MdePkg/Include/Uefi/UefiSpec.h b/MdePkg/Include/Uefi/UefiSpec.h index 05b82e0be1..2b1b72d862 100644 --- a/MdePkg/Include/Uefi/UefiSpec.h +++ b/MdePkg/Include/Uefi/UefiSpec.h @@ -113,7 +113,8 @@ typedef enum { // Attributes bitmasks, grouped by type // #define EFI_CACHE_ATTRIBUTE_MASK (EFI_MEMORY_UC | EFI_MEMORY_WC | EFI_MEMORY_WT | EFI_MEMORY_WB | EFI_MEMORY_UCE | EFI_MEMORY_WP) -#define EFI_MEMORY_ATTRIBUTE_MASK (EFI_MEMORY_RP | EFI_MEMORY_XP | EFI_MEMORY_RO | EFI_MEMORY_SP | EFI_MEMORY_CPU_CRYPTO) +#define EFI_MEMORY_ACCESS_MASK (EFI_MEMORY_RP | EFI_MEMORY_XP | EFI_MEMORY_RO) +#define EFI_MEMORY_ATTRIBUTE_MASK (EFI_MEMORY_ACCESS_MASK | EFI_MEMORY_SP | EFI_MEMORY_CPU_CRYPTO) /// /// Memory descriptor version number. -- cgit v1.2.3