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IntelFspPkg/FspSecCore add AsmGetFspBaseAddressNoStack and AsmGetFspInfoHeaderNoStack

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Fix GCC issue on FspInfoHeaderRelativeOff.
Clean up comments for platform ID matching on Microcode and PcdFspBootFirmwareVolumeBase

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: "Yao, Jiewen" <Jiewen.Yao@intel.com>
Reviewed-by: "Rangarajan, Ravi P" <ravi.p.rangarajan@intel.com>
Reviewed-by: "Mudusuru, Giri P" <giri.p.mudusuru@intel.com>
Reviewed-by: "Ma, Maurice" <maurice.ma@intel.com>


git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@17496 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
Yao, Jiewen
2015-05-22 07:49:34 +00:00
committed by jyao1
parent e7401ee1af
commit f0abe42fd7
4 changed files with 76 additions and 9 deletions
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6
IntelFspPkg/FspSecCore/Ia32/FspApiEntry.s
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@@ -297,8 +297,8 @@ CheckMainHeader:
movl $MSR_IA32_PLATFORM_ID, %ecx
rdmsr
movl %edx, %ecx
shrl $0x12, %ecx #($50-$32)
andl $0x07, %ecx
shrl $0x12, %ecx # shift (50d-32d=18d=0x12) bits
andl $0x07, %ecx # platform id at bit[52..50]
movl $0x01, %edx
shll %cl,%edx
@@ -784,7 +784,7 @@ FspApiCommonL2:
#
# Pass BFV into the PEI Core
# It uses relative address to calucate the actual boot FV base
# For FSP impleantion with single FV, PcdFlashFvRecoveryBase and
# For FSP implementation with single FV, PcdFspBootFirmwareVolumeBase and
# PcdFspAreaBaseAddress are the same. For FSP with mulitple FVs,
# they are different. The code below can handle both cases.
#