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* [edk2-devel] [PATCH v3] MdePkg: Add a new memory type definition
@ 2023-12-08  5:37 ManickamX Srinivasan
  2023-12-08  5:48 ` Zhiguang Liu
                   ` (2 more replies)
  0 siblings, 3 replies; 5+ messages in thread
From: ManickamX Srinivasan @ 2023-12-08  5:37 UTC (permalink / raw)
  To: devel
  Cc: ManickamX Srinivasan, Michael D Kinney, Liming Gao, Zhiguang Liu,
	T V Krishnamoorthy

New memory type as defined in UEFI standard v2.10

Cc: Michael D Kinney <michael.d.kinney@intel.com>
Cc: Liming Gao <gaoliming@byosoft.com.cn>
Cc: Zhiguang Liu <zhiguang.liu@intel.com>
Cc: T V Krishnamoorthy <krishnamoorthy.t.v@intel.com>
Signed-off-by: ManickamX Srinivasan <manickamx.srinivasan@intel.com>
---
 MdePkg/Include/Uefi/UefiSpec.h | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/MdePkg/Include/Uefi/UefiSpec.h b/MdePkg/Include/Uefi/UefiSpec.h
index 7dfe35b499..d583ee17d0 100644
--- a/MdePkg/Include/Uefi/UefiSpec.h
+++ b/MdePkg/Include/Uefi/UefiSpec.h
@@ -110,6 +110,21 @@ typedef enum {
 //
 #define EFI_MEMORY_RUNTIME  0x8000000000000000ULL
 
+//
+// If this flag is set, the memory region is
+// described with additional ISA-specific memory attributes 
+// as specified in EFI_MEMORY_ISA_MASK.
+//
+#define EFI_MEMORY_ISA_VALID 0x4000000000000000ULL
+
+//
+// Defines the bits reserved for describing optional ISA-specific cacheability 
+// attributes that are not covered by the standard UEFI Memory Attributes cacheability
+// bits (EFI_MEMORY_UC, EFI_MEMORY_WC, EFI_MEMORY_WT, EFI_MEMORY_WB and EFI_MEMORY_UCE).
+// See Calling Conventions for further ISA-specific enumeration of these bits.
+//
+#define EFI_MEMORY_ISA_MASK 0x0FFFF00000000000ULL
+
 //
 // Attributes bitmasks, grouped by type
 //
-- 
2.30.2.windows.1



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end of thread, other threads:[~2023-12-12  0:27 UTC | newest]

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2023-12-08  5:37 [edk2-devel] [PATCH v3] MdePkg: Add a new memory type definition ManickamX Srinivasan
2023-12-08  5:48 ` Zhiguang Liu
2023-12-08 20:23 ` Michael D Kinney
2023-12-09  3:21   ` Michael D Kinney
2023-12-12  0:27 ` [edk2-devel] 回复: " gaoliming via groups.io

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