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UefiCpuPkg/CpuMpPei: Add CPU_VOLATILE_REGISTERS & worker functions

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Add CPU_VOLATILE_REGISTERS definitions for CRx and DRx required to be restored
after APs received INIT IPI.

Add worker functions SaveVolatileRegisters()/RestoreVolatileRegisters() used to
save/restore CRx and DRx. It also check if Debugging Extensions supported or
not.

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: Feng Tian <feng.tian@Intel.com>

git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@19086 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
Jeff Fan
2015-12-02 00:42:40 +00:00
committed by vanjeff
parent 24930b5609
commit ef1fdb8098
2 changed files with 80 additions and 0 deletions
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13
UefiCpuPkg/CpuMpPei/CpuMpPei.h
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@@ -113,11 +113,24 @@ typedef struct {
#pragma pack()
typedef struct {
UINTN Cr0;
UINTN Cr3;
UINTN Cr4;
UINTN Dr0;
UINTN Dr1;
UINTN Dr2;
UINTN Dr3;
UINTN Dr6;
UINTN Dr7;
} CPU_VOLATILE_REGISTERS;
typedef struct {
UINT32 ApicId;
EFI_HEALTH_FLAGS Health;
CPU_STATE State;
BOOLEAN CpuHealthy;
CPU_VOLATILE_REGISTERS VolatileRegisters;
} PEI_CPU_DATA;
//