1 files changed, 73 insertions, 0 deletions
diff --git a/EDK/Foundation/Cpu/Pentium/CpuIA32Lib/EfiCpuVersion.c b/EDK/Foundation/Cpu/Pentium/CpuIA32Lib/EfiCpuVersion.c
new file mode 100644
index 0000000..eea033b
--- /dev/null
+++ b/EDK/Foundation/Cpu/Pentium/CpuIA32Lib/EfiCpuVersion.c
@@ -0,0 +1,73 @@
+/*++
+
+Copyright (c) 2004 - 2006, Intel Corporation                                                         
+All rights reserved. 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.             
+
+Module Name:
+
+  EfiCpuVersion.c
+  
+Abstract:
+  
+  Provide cpu version extract considering extended family & model ID.
+--*/
+
+#include "CpuIA32.h"
+
+VOID
+EfiCpuVersion (
+  IN  OUT UINT16  *FamilyId,    OPTIONAL
+  IN  OUT UINT8   *Model,       OPTIONAL
+  IN  OUT UINT8   *SteppingId,  OPTIONAL
+  IN  OUT UINT8   *Processor    OPTIONAL
+  )
+/*++
+
+Routine Description:
+  Extract CPU detail version infomation
+
+Arguments:
+  FamilyId   - FamilyId, including ExtendedFamilyId
+  Model      - Model, including ExtendedModel
+  SteppingId - SteppingId
+  Processor  - Processor
+
+--*/
+{
+  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 |= (Register.RegEax >> 12) & 0xF0;
+      }
+    }
+  
+    if (FamilyId != NULL) {
+      *FamilyId = TempFamilyId;
+      if (TempFamilyId == 0xF) {
+        *FamilyId = *FamilyId + (UINT16) ((Register.RegEax >> 20) & 0xFF);
+      }
+    }
+  } 
+}