[PATCH v3 1/2] MdePkg/Cpuid.h: Add CPUID_HYBRID_INFORMATION Leaf(1Ah).

["Jason Lou" <yun.lou@intel.com>]

https://bugzilla.tianocore.org/show_bug.cgi?id=3105

The UefiCpuPkg/CpuCacheInfoLib will reference new definition
about CPUID_HYBRID_INFORMATION Leaf(1Ah).

Signed-off-by: Jason Lou <yun.lou@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>
---
 MdePkg/Include/Register/Intel/Cpuid.h | 63 +++++++++++++++++++-
 1 file changed, 62 insertions(+), 1 deletion(-)

diff --git a/MdePkg/Include/Register/Intel/Cpuid.h b/MdePkg/Include/Register/Intel/Cpuid.h
index d4496079570d..dd1b64a1e50b 100644
--- a/MdePkg/Include/Register/Intel/Cpuid.h
+++ b/MdePkg/Include/Register/Intel/Cpuid.h
@@ -1278,7 +1278,7 @@ typedef union {
   @retval  EAX  The maximum input value for ECX to retrieve sub-leaf information.
   @retval  EBX  Structured Extended Feature Flags described by the type
                 CPUID_STRUCTURED_EXTENDED_FEATURE_FLAGS_EBX.
-  @retval  EBX  Structured Extended Feature Flags described by the type
+  @retval  ECX  Structured Extended Feature Flags described by the type
                 CPUID_STRUCTURED_EXTENDED_FEATURE_FLAGS_ECX.
   @retval  EDX  Reserved.
 
@@ -3597,6 +3597,67 @@ typedef union {
 ///
 
 
+/**
+  CPUID Hybrid Information Enumeration Leaf
+
+  @param   EAX  CPUID_HYBRID_INFORMATION (0x1A)
+  @param   ECX  CPUID_HYBRID_INFORMATION_SUB_LEAF (0x00).
+
+  @retval  EAX  Enumerates the native model ID and core type described
+                by the type CPUID_NATIVE_MODEL_ID_AND_CORE_TYPE_EAX
+  @retval  EBX  Reserved.
+  @retval  ECX  Reserved.
+  @retval  EDX  Reserved.
+
+  <b>Example usage</b>
+  @code
+  CPUID_NATIVE_MODEL_ID_AND_CORE_TYPE_EAX          Eax;
+
+  AsmCpuidEx (
+    CPUID_HYBRID_INFORMATION,
+    CPUID_HYBRID_INFORMATION_SUB_LEAF,
+    &Eax, NULL, NULL, NULL
+    );
+  @endcode
+
+**/
+#define CPUID_HYBRID_INFORMATION                                       0x1A
+
+///
+/// CPUID Hybrid Information Enumeration sub-leaf
+///
+#define CPUID_HYBRID_INFORMATION_SUB_LEAF                               0x00
+
+/**
+  CPUID Hybrid Information EAX for CPUID leaf #CPUID_HYBRID_INFORMATION,
+  sub-leaf #CPUID_HYBRID_INFORMATION_SUB_LEAF.
+**/
+typedef union {
+  ///
+  /// Individual bit fields
+  ///
+  struct {
+    ///
+    /// [Bit 23:0] Native model ID of the core.
+    ///
+    /// The core-type and native mode ID can be used to uniquely identify
+    /// the microarchitecture of the core.This native model ID is not unique
+    /// across core types, and not related to the model ID reported in CPUID
+    /// leaf 01H, and does not identify the SOC.
+    ///
+    UINT32  NativeModelId:24;
+    ///
+    /// [Bit 31:24] Core type
+    ///
+    UINT32  CoreType:8;
+  } Bits;
+  ///
+  /// All bit fields as a 32-bit value
+  ///
+  UINT32  Uint32;
+} CPUID_NATIVE_MODEL_ID_AND_CORE_TYPE_EAX;
+
+
 /**
   CPUID V2 Extended Topology Enumeration Leaf
 
-- 
2.28.0.windows.1