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UefiCpuPkg/CpuMpPei: Set X2APIC flag if one x2APIC ID larger than 254

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If there are any logical processor reporting an APIC ID of 255 or greater, set
X2ApicEnable flag.

GetInitialApicId() will return x2APIC ID if CPUID leaf B supported.

Cc: Feng Tian <feng.tian@intel.com>
Cc: Michael Kinney <michael.d.kinney@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Jeff Fan <jeff.fan@intel.com>
Reviewed-by: Michael Kinney <michael.d.kinney@intel.com>

git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@18933 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
Jeff Fan
2015-11-25 02:47:34 +00:00
committed by vanjeff
parent bf14e1077a
commit 2f0261b7dc
2 changed files with 18 additions and 5 deletions
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2
UefiCpuPkg/CpuMpPei/CpuMpPei.h
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@@ -124,6 +124,7 @@ typedef struct {
// PEI CPU MP Data save in memory
//
struct _PEI_CPU_MP_DATA {
SPIN_LOCK MpLock;
UINT32 CpuCount;
UINT32 BspNumber;
UINTN Buffer;
@@ -137,6 +138,7 @@ struct _PEI_CPU_MP_DATA {
volatile UINT32 FinishedCount;
BOOLEAN EndOfPeiFlag;
BOOLEAN InitFlag;
BOOLEAN X2ApicEnable;
CPU_EXCHANGE_ROLE_INFO BSPInfo;
CPU_EXCHANGE_ROLE_INFO APInfo;
MTRR_SETTINGS MtrrTable;