diff options
Diffstat (limited to 'UefiCpuPkg/CpuMpPei/CpuMpPei.h')
| -rw-r--r-- | UefiCpuPkg/CpuMpPei/CpuMpPei.h | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/UefiCpuPkg/CpuMpPei/CpuMpPei.h b/UefiCpuPkg/CpuMpPei/CpuMpPei.h index 00e95cf899..611a296dce 100644 --- a/UefiCpuPkg/CpuMpPei/CpuMpPei.h +++ b/UefiCpuPkg/CpuMpPei/CpuMpPei.h @@ -21,6 +21,36 @@ #include <Library/BaseLib.h> #include <Library/PeimEntryPoint.h> +#pragma pack(1) +typedef union { + struct { + UINT32 LimitLow : 16; + UINT32 BaseLow : 16; + UINT32 BaseMid : 8; + UINT32 Type : 4; + UINT32 System : 1; + UINT32 Dpl : 2; + UINT32 Present : 1; + UINT32 LimitHigh : 4; + UINT32 Software : 1; + UINT32 Reserved : 1; + UINT32 DefaultSize : 1; + UINT32 Granularity : 1; + UINT32 BaseHigh : 8; + } Bits; + UINT64 Uint64; +} IA32_GDT; +#pragma pack() +/** + Assembly code to load GDT table and update segment accordingly. + + @param Gdtr Pointer to GDT descriptor +**/ +VOID +EFIAPI +AsmInitializeGdt ( + IN IA32_DESCRIPTOR *Gdtr + ); #endif |