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author | Jeff Fan <jeff.fan@intel.com> | 2015-07-15 03:41:07 +0000 |
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committer | vanjeff <vanjeff@Edk2> | 2015-07-15 03:41:07 +0000 |
commit | 8805c9123156793ee8c48083428bf1c432d0bdcf (patch) | |
tree | e3af895821690ca7041bf54fa83c72b446c353fa /UefiCpuPkg | |
parent | d1cf93333f3a9394c2f746db4deb374b6ba374fd (diff) | |
download | edk2-8805c9123156793ee8c48083428bf1c432d0bdcf.zip edk2-8805c9123156793ee8c48083428bf1c432d0bdcf.tar.gz edk2-8805c9123156793ee8c48083428bf1c432d0bdcf.tar.bz2 |
UefiCpuPkg/CpuMpPei: Build one GUIDed HOB to save CPU MP Data
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Jeff Fan <jeff.fan@intel.com>
Reviewed-by: Feng Tian <feng.tian@intel.com>
Reviewed-by: Jiewen Yao <jiewen.yao@intel.com>
git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@18003 6f19259b-4bc3-4df7-8a09-765794883524
Diffstat (limited to 'UefiCpuPkg')
-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 d63b1ff..ae98c38 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; } |