diff options
Diffstat (limited to 'DuetPkg/DxeIpl/HobGeneration.c')
| -rw-r--r-- | DuetPkg/DxeIpl/HobGeneration.c | 20 |
1 files changed, 9 insertions, 11 deletions
diff --git a/DuetPkg/DxeIpl/HobGeneration.c b/DuetPkg/DxeIpl/HobGeneration.c index 224d6a710e..c5b6c7c1b2 100644 --- a/DuetPkg/DxeIpl/HobGeneration.c +++ b/DuetPkg/DxeIpl/HobGeneration.c @@ -1,6 +1,6 @@ /** @file
-Copyright (c) 2006 - 2007, Intel Corporation
+Copyright (c) 2006 - 2010, 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
@@ -26,7 +26,8 @@ Revision History: #define EFI_DXE_FILE_GUID \
{ 0xb1644c1a, 0xc16a, 0x4c5b, {0x88, 0xde, 0xea, 0xfb, 0xa9, 0x7e, 0x74, 0xd8 }}
-#define CPUID_EXTENDED_ADD_SIZE 0x80000008
+#define EFI_CPUID_EXTENDED_FUNCTION 0x80000000
+#define CPUID_EXTENDED_ADD_SIZE 0x80000008
HOB_TEMPLATE gHobTemplate = {
{ // Phit
@@ -957,21 +958,18 @@ PrepareHobCpu ( VOID
)
{
- EFI_CPUID_REGISTER Reg;
- UINT8 CpuMemoryAddrBitNumber;
+ UINT32 CpuidEax;
//
// Create a CPU hand-off information
//
- CpuMemoryAddrBitNumber = 36;
- AsmCpuid (EFI_CPUID_EXTENDED_FUNCTION, &Reg.RegEax, &Reg.RegEbx, &Reg.RegEcx, &Reg.RegEdx);
+ gHob->Cpu.SizeOfMemorySpace = 36;
- if (Reg.RegEax >= CPUID_EXTENDED_ADD_SIZE) {
- AsmCpuid (CPUID_EXTENDED_ADD_SIZE, &Reg.RegEax, &Reg.RegEbx, &Reg.RegEcx, &Reg.RegEdx);
- CpuMemoryAddrBitNumber = (UINT8)(UINTN)(Reg.RegEax & 0xFF);
+ AsmCpuid (EFI_CPUID_EXTENDED_FUNCTION, &CpuidEax, NULL, NULL, NULL);
+ if (CpuidEax >= CPUID_EXTENDED_ADD_SIZE) {
+ AsmCpuid (CPUID_EXTENDED_ADD_SIZE, &CpuidEax, NULL, NULL, NULL);
+ gHob->Cpu.SizeOfMemorySpace = (UINT8)(CpuidEax & 0xFF);
}
-
- gHob->Cpu.SizeOfMemorySpace = CpuMemoryAddrBitNumber;
}
VOID
|