[edk2-devel] [PATCH 1/1] MdePkg: Update the Label definitions of the EFI_NVDIMM_LABEL

["Junfeng Guan" <junfengx.guan@intel.com>]

Refer to Uefi spec 2.10 section 13.19.5, update the label definitions
for NVDIMM SPA location cookie.

Signed-off-by: Junfeng Guan <junfengx.guan@intel.com>
Cc: Michael D Kinney <michael.d.kinney@intel.com>
Cc: Liming Gao <gaoliming@byosoft.com.cn>
Cc: Zhiguang Liu <zhiguang.liu@intel.com>
Cc: Yi Li <yi1.li@intel.com>
---
 MdePkg/Include/Protocol/NvdimmLabel.h | 16 +++++++++++++++-
 1 file changed, 15 insertions(+), 1 deletion(-)

diff --git a/MdePkg/Include/Protocol/NvdimmLabel.h b/MdePkg/Include/Protocol/NvdimmLabel.h
index e46999a3ab4a..2352c9bd1652 100644
--- a/MdePkg/Include/Protocol/NvdimmLabel.h
+++ b/MdePkg/Include/Protocol/NvdimmLabel.h
@@ -122,6 +122,12 @@ typedef struct {
 ///
 #define EFI_NVDIMM_LABEL_FLAGS_UPDATING  0x00000008
 
+///
+/// When set, the SPALocationCookie in the namespace label is valid and should match the
+/// current value in the NFIT SPA Range Structure.
+///
+#define EFI_NVDIMM_LABEL_FLAGS_SPACOOKIE_BOUND  0x00000010
+
 typedef struct {
   ///
   /// Unique Label Identifier UUID per RFC 4122.
@@ -196,10 +202,18 @@ typedef struct {
   ///
   EFI_GUID    AddressAbstractionGuid;
 
+  ///
+  /// When creating the label, this value is set to the value from the NFIT SPA Range Structure if the
+  /// SPALocationCookie flag (bit 2) is set. If EFI_NVDIMM_LABEL_FLAGS_SPACOOKIE_BOUND is set, the SPALocationCookie
+  /// value stored in the namespace label should match the current value in the NFIT SPA Range Structure.
+  /// Otherwise, the data may not be read correctly.
+  ///
+  UINT64      SPALocationCookie;
+
   ///
   /// Shall be 0.
   ///
-  UINT8       Reserved1[88];
+  UINT8       Reserved1[80];
 
   ///
   /// 64-bit Fletcher64 checksum of all fields in this Label.
-- 
2.26.2.windows.1



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