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MdePkg/BaseXApicLib: Support IA32 processors without MSR_IA32_APIC_BASE_ADDRESS

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Use Family from CPUID 01 to detect support for the Local APIC Base Address MSR (MSR_IA32_APIC_BASE_ADDRESS).
If this MSR is not supported, then use Local APIC Base Address from the PCD PcdCpuLocalApicBaseAddress.

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Michael Kinney <michael.d.kinney@intel.com>
Reviewed-by: Jordan Justen <jordan.l.justen@intel.com>



git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@17216 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
Michael Kinney
2015-04-27 19:47:26 +00:00
committed by mdkinney
parent cd68e4a8de
commit 59d67246db
2 changed files with 61 additions and 11 deletions
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6
UefiCpuPkg/Library/BaseXApicLib/BaseXApicLib.inf
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@@ -21,7 +21,7 @@
MODULE_UNI_FILE = BaseXApicLib.uni
FILE_GUID = D87CA0A8-1AC2-439b-90F8-EF4A2AC88DAF
MODULE_TYPE = BASE
VERSION_STRING = 1.0
VERSION_STRING = 1.1
LIBRARY_CLASS = LocalApicLib
#
@@ -42,6 +42,8 @@
DebugLib
TimerLib
IoLib
PcdLib
[Pcd]
gUefiCpuPkgTokenSpaceGuid.PcdCpuInitIpiDelayInMicroSeconds ## SOMETIMES_CONSUMES
gUefiCpuPkgTokenSpaceGuid.PcdCpuInitIpiDelayInMicroSeconds ## SOMETIMES_CONSUMES
gUefiCpuPkgTokenSpaceGuid.PcdCpuLocalApicBaseAddress ## SOMETIMES_CONSUMES