diff options
| -rw-r--r-- | UefiCpuPkg/Library/MpInitLib/Microcode.c | 37 |
1 files changed, 19 insertions, 18 deletions
diff --git a/UefiCpuPkg/Library/MpInitLib/Microcode.c b/UefiCpuPkg/Library/MpInitLib/Microcode.c index e1f661d6b1..5f9ae22794 100644 --- a/UefiCpuPkg/Library/MpInitLib/Microcode.c +++ b/UefiCpuPkg/Library/MpInitLib/Microcode.c @@ -159,30 +159,31 @@ MicrocodeDetect ( MicrocodeEnd = (UINTN) (CpuMpData->MicrocodePatchAddress + CpuMpData->MicrocodePatchRegionSize);
MicrocodeEntryPoint = (CPU_MICROCODE_HEADER *) (UINTN) CpuMpData->MicrocodePatchAddress;
- //
- // Save an in-complete CheckSum32 from CheckSum Part1 for common parts.
- //
- if (MicrocodeEntryPoint->DataSize == 0) {
- InCompleteCheckSum32 = CalculateSum32 (
- (UINT32 *) MicrocodeEntryPoint,
- sizeof (CPU_MICROCODE_HEADER) + 2000
- );
- } else {
- InCompleteCheckSum32 = CalculateSum32 (
- (UINT32 *) MicrocodeEntryPoint,
- sizeof (CPU_MICROCODE_HEADER) + MicrocodeEntryPoint->DataSize
- );
- }
- InCompleteCheckSum32 -= MicrocodeEntryPoint->ProcessorSignature.Uint32;
- InCompleteCheckSum32 -= MicrocodeEntryPoint->ProcessorFlags;
- InCompleteCheckSum32 -= MicrocodeEntryPoint->Checksum;
-
do {
//
// Check if the microcode is for the Cpu and the version is newer
// and the update can be processed on the platform
//
CorrectMicrocode = FALSE;
+
+ //
+ // Save an in-complete CheckSum32 from CheckSum Part1 for common parts.
+ //
+ if (MicrocodeEntryPoint->DataSize == 0) {
+ InCompleteCheckSum32 = CalculateSum32 (
+ (UINT32 *) MicrocodeEntryPoint,
+ sizeof (CPU_MICROCODE_HEADER) + 2000
+ );
+ } else {
+ InCompleteCheckSum32 = CalculateSum32 (
+ (UINT32 *) MicrocodeEntryPoint,
+ sizeof (CPU_MICROCODE_HEADER) + MicrocodeEntryPoint->DataSize
+ );
+ }
+ InCompleteCheckSum32 -= MicrocodeEntryPoint->ProcessorSignature.Uint32;
+ InCompleteCheckSum32 -= MicrocodeEntryPoint->ProcessorFlags;
+ InCompleteCheckSum32 -= MicrocodeEntryPoint->Checksum;
+
if (MicrocodeEntryPoint->HeaderVersion == 0x1) {
//
// It is the microcode header. It is not the padding data between microcode patches
|