1 files changed, 67 insertions, 0 deletions
diff --git a/BraswellPlatformPkg/Common/Library/CpuIA32Lib/EfiCpuVersion.c b/BraswellPlatformPkg/Common/Library/CpuIA32Lib/EfiCpuVersion.c
new file mode 100644
index 0000000000..e11d0dc8c0
--- /dev/null
+++ b/BraswellPlatformPkg/Common/Library/CpuIA32Lib/EfiCpuVersion.c
@@ -0,0 +1,67 @@
+/** @file
+  Provide Cpu version extract considering extended family & model ID.
+
+  Copyright (c) 2004 - 2015, Intel Corporation. All rights reserved.<BR>
+
+  This program and the accompanying materials
+  are licensed and made available under the terms and conditions of the BSD License
+  which accompanies this distribution.  The full text of the license may be found at
+  http://opensource.org/licenses/bsd-license.php.
+
+  THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+  WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+
+**/
+
+#include <Library/CpuIA32.h>
+
+/**
+  Extract CPU detail version infomation
+
+  @param[in, out]  FamilyId    FamilyId, including ExtendedFamilyId
+  @param[in, out]  Model       Model, including ExtendedModel
+  @param[in, out]  SteppingId  SteppingId
+  @param[in, out]  Processor   Processor
+
+**/
+VOID
+EFIAPI
+EfiCpuVersion (
+  IN  OUT UINT16  *FamilyId,    OPTIONAL
+  IN  OUT UINT8   *Model,       OPTIONAL
+  IN  OUT UINT8   *SteppingId,  OPTIONAL
+  IN  OUT UINT8   *Processor    OPTIONAL
+  )
+
+{
+  EFI_CPUID_REGISTER Register;
+  UINT8              TempFamilyId;
+
+  EfiCpuid (EFI_CPUID_VERSION_INFO, &Register);
+
+  if (SteppingId != NULL) {
+    *SteppingId = (UINT8) (Register.RegEax & 0xF);
+  }
+
+  if (Processor != NULL) {
+    *Processor = (UINT8) ((Register.RegEax >> 12) & 0x3);
+  }
+
+  if (Model != NULL || FamilyId != NULL) {
+    TempFamilyId = (UINT8) ((Register.RegEax >> 8) & 0xF);
+
+    if (Model != NULL) {
+      *Model = (UINT8) ((Register.RegEax >> 4) & 0xF);
+      if (TempFamilyId == 0x6 || TempFamilyId == 0xF) {
+        *Model = (UINT8) (*Model  | ((Register.RegEax >> 12) & 0xF0));
+      }
+    }
+
+    if (FamilyId != NULL) {
+      *FamilyId = TempFamilyId;
+      if (TempFamilyId == 0xF) {
+        *FamilyId = (UINT8 ) (*FamilyId + (UINT16) ((Register.RegEax >> 20) & 0xFF));
+      }
+    }
+  }
+}