diff options
Diffstat (limited to 'UefiCpuPkg/CpuMpPei')
-rw-r--r-- | UefiCpuPkg/CpuMpPei/CpuMpPei.c | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/UefiCpuPkg/CpuMpPei/CpuMpPei.c b/UefiCpuPkg/CpuMpPei/CpuMpPei.c index d63b1ff231..ae98c38639 100644 --- a/UefiCpuPkg/CpuMpPei/CpuMpPei.c +++ b/UefiCpuPkg/CpuMpPei/CpuMpPei.c @@ -94,6 +94,31 @@ SortApicId ( } } } + +/** + Get CPU MP Data pointer from the Guided HOB. + + @return Pointer to Pointer to PEI CPU MP Data +**/ +PEI_CPU_MP_DATA * +GetMpHobData ( + VOID + ) +{ + EFI_HOB_GUID_TYPE *GuidHob; + VOID *DataInHob; + PEI_CPU_MP_DATA *CpuMpData; + + CpuMpData = NULL; + GuidHob = GetFirstGuidHob (&gEfiCallerIdGuid); + if (GuidHob != NULL) { + DataInHob = GET_GUID_HOB_DATA (GuidHob); + CpuMpData = (PEI_CPU_MP_DATA *)(*(UINTN *)DataInHob); + } + ASSERT (CpuMpData != NULL); + return CpuMpData; +} + /** This function will be called from AP reset code if BSP uses WakeUpAP. @@ -413,6 +438,14 @@ CpuMpPeimInit ( // Count processor number and collect processor information // ProcessorCount = CountProcessorNumber (PeiCpuMpData); + // + // Build location of PEI CPU MP DATA buffer in HOB + // + BuildGuidDataHob ( + &gEfiCallerIdGuid, + (VOID *)&PeiCpuMpData, + sizeof(UINT64) + ); return EFI_SUCCESS; } |