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authorraywu <raywu0301@gmail.com>2018-06-15 00:00:50 +0800
committerraywu <raywu0301@gmail.com>2018-06-15 00:00:50 +0800
commitb7c51c9cf4864df6aabb99a1ae843becd577237c (patch)
treeeebe9b0d0ca03062955223097e57da84dd618b9a /Core/CPU/CpuSpSmi.c
downloadzprj-master.tar.xz
init. 1AQQW051HEADmaster
Diffstat (limited to 'Core/CPU/CpuSpSmi.c')
-rw-r--r--Core/CPU/CpuSpSmi.c568
1 files changed, 568 insertions, 0 deletions
diff --git a/Core/CPU/CpuSpSmi.c b/Core/CPU/CpuSpSmi.c
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+//**********************************************************************
+//**********************************************************************
+//** **
+//** (C)Copyright 1987-2013, American Megatrends, Inc. **
+//** **
+//** All Rights Reserved. **
+//** **
+//** 5555 Oakbrook Pkwy, Suite 200, Norcross, GA 30093 **
+//** **
+//** Phone: (770)-246-8600 **
+//** **
+//**********************************************************************
+//**********************************************************************
+//**********************************************************************
+// $Header: /Alaska/SOURCE/Modules/SharkBayRefCodes/Haswell/AMI Cpu PKG/CpuSp SMI/CpuSpSmi.c 8 5/24/15 11:37p Davidhsieh $
+//
+// $Revision: 8 $
+//
+// $Date: 5/24/15 11:37p $
+//**********************************************************************
+// Revision History
+// ----------------
+// $Log: /Alaska/SOURCE/Modules/SharkBayRefCodes/Haswell/AMI Cpu PKG/CpuSp SMI/CpuSpSmi.c $
+//
+// 8 5/24/15 11:37p Davidhsieh
+// [TAG] EIP215675
+// [Category] New Feature
+// [Description] Smm Access Check feautre support
+// [Files] Cpu.sdl, CpuDxe.c, CpuSpSmi.sdl, CpuSpsmi.c
+//
+// 7 10/08/13 3:10a Crystallee
+// [TAG] EIP137873
+// [Category] Bug Fix
+// [Severity] Normal
+// [Symptom] CPU Security Configuration(MSR 4E0[0]) will be changed
+// after S3 resume
+// [RootCause] Didn't restore the Cpu MSR 4e0 while S3 resume.
+// [Solution] Restore the Cpu MSR 0x4E0 while S3 resume.
+//
+// 6 1/24/13 10:45p Davidhsieh
+// [TAG] EIP112381
+// [Category] Bug Fix
+// [Severity] Important
+// [Symptom] TBoot S3 resume fail
+// [RootCause] MSR 0x2e7 is not restored
+// [Solution] Save and restore MSR 0x2e7 for S3
+//
+// 5 12/18/12 9:23p Davidhsieh
+// [TAG] None
+// [Category] Improvement
+// [Description] Check CPU before lock SMM_FEATURE_CONTROL MSR
+//
+// 4 12/09/12 10:35p Davidhsieh
+// [TAG] None
+// [Category] Improvement
+// [Description] Lock SMM_FEATURE_CONTROL MSR
+//
+// 3 10/04/12 9:20a Davidhsieh
+// Change the procedure of configuring MTRR
+//
+// 2 7/10/12 2:51a Davidhsieh
+// [TAG] EIP93180
+// [Category] Bug Fix
+// [Severity] Important
+// [Symptom] The "Event Kernel-Power 137" error event log shows while
+// resumed from S3
+// [RootCause] The fixed and variable Mtrrs of BSP are not restored
+// [Solution] Restore BPS's mtrss
+//
+// 1 2/07/12 4:00a Davidhsieh
+//
+//
+//**********************************************************************
+
+//<AMI_FHDR_START>
+//---------------------------------------------------------------------------
+//
+// Name: CpuSpSmi.C
+//
+// Description: Provide functions to CPU specific SMI
+//
+//---------------------------------------------------------------------------
+//<AMI_FHDR_END>
+
+#include "CpuSpSmi.h"
+
+UINT64 ReadMsr (UINT32 Msr);
+VOID WriteMsr(UINT32 Msr, UINT64 Value);
+
+UINTN MpMtrrSynchUpEntry (VOID);
+VOID MpMtrrSynchUpExit (UINTN Cr4);
+
+EFI_GUID SwDispatchProtocolGuid = EFI_SMM_SW_DISPATCH_PROTOCOL_GUID;
+
+EFI_SMM_SYSTEM_TABLE *mSmst;
+EFI_SMM_BASE_PROTOCOL *pSmmBase;
+EFI_SMM_SW_DISPATCH_PROTOCOL *gSwDispatch;
+
+//
+// MSR table for S3 resume
+//
+EFI_MSR_VALUES mFixedMtrrValues[] = {
+ { MTRR_FIX_64K_00000, 0 },
+ { MTRR_FIX_16K_80000, 0 },
+ { MTRR_FIX_16K_A0000, 0 },
+ { MTRR_FIX_4K_C0000, 0 },
+ { MTRR_FIX_4K_C8000, 0 },
+ { MTRR_FIX_4K_D0000, 0 },
+ { MTRR_FIX_4K_D8000, 0 },
+ { MTRR_FIX_4K_E0000, 0 },
+ { MTRR_FIX_4K_E8000, 0 },
+ { MTRR_FIX_4K_F0000, 0 },
+ { MTRR_FIX_4K_F8000, 0 },
+ { 0, 0 }
+};
+
+EFI_MSR_VALUES mVariableMtrrValues[] = {
+ { MTRR_PHYS_BASE_0, 0 },
+ { MTRR_PHYS_MASK_0, 0 },
+ { MTRR_PHYS_BASE_1, 0 },
+ { MTRR_PHYS_MASK_1, 0 },
+ { MTRR_PHYS_BASE_2, 0 },
+ { MTRR_PHYS_MASK_2, 0 },
+ { MTRR_PHYS_BASE_3, 0 },
+ { MTRR_PHYS_MASK_3, 0 },
+ { MTRR_PHYS_BASE_4, 0 },
+ { MTRR_PHYS_MASK_4, 0 },
+ { MTRR_PHYS_BASE_5, 0 },
+ { MTRR_PHYS_MASK_5, 0 },
+ { MTRR_PHYS_BASE_6, 0 },
+ { MTRR_PHYS_MASK_6, 0 },
+ { MTRR_PHYS_BASE_7, 0 },
+ { MTRR_PHYS_MASK_7, 0 },
+ { MTRR_PHYS_BASE_8, 0 },
+ { MTRR_PHYS_MASK_8, 0 },
+ { MTRR_PHYS_BASE_9, 0 },
+ { MTRR_PHYS_MASK_9, 0 }
+};
+
+#define MiscMsrCount 1
+
+EFI_MSR_VALUES mMiscMsrValues[] = {
+ { 0x2e7, 0 }
+};
+
+EFI_MSR_VALUES mSmmFeatureCtrl = { 0x4e0, 0};
+
+//<AMI_PHDR_START>
+//----------------------------------------------------------------------------
+// Procedure: SaveCpuMsr
+//
+// Description: This function saves the CPU MSRs for S3 resume usage.
+//
+// Input: DispatchHandle Handle to the Dispatcher
+// DispatchContext SW SMM dispatcher context
+//
+// Output: None
+//
+// Modified:
+//
+// Referrals:
+//
+// Notes:
+//
+//----------------------------------------------------------------------------
+//<AMI_PHDR_END>
+VOID
+SaveCpuMsr(
+ IN EFI_HANDLE DispatchHandle,
+ IN EFI_SMM_SW_DISPATCH_CONTEXT *DispatchContext
+ )
+{
+ UINT32 i;
+
+ if (Shr64(ReadMsr(0x17d),57) & 0x03){
+ if (!(ReadMsr(mSmmFeatureCtrl.Index) && 0x01))
+ WriteMsr(mSmmFeatureCtrl.Index, ReadMsr(mSmmFeatureCtrl.Index) | 0x01);
+ mSmmFeatureCtrl.Value = ReadMsr(mSmmFeatureCtrl.Index);
+ }
+
+ //Save Fixed MTRR
+ for(i=0; i < NUM_OF_FIXED_MTRRS; i++)
+ {
+ mFixedMtrrValues[i].Value = ReadMsr(mFixedMtrrValues[i].Index);
+ }
+
+ //Save variable MTRR
+ for (i = 0; i < ((UINT8)(ReadMsr(MSR_IA32_MTRR_CAP) & VCNT_MASK)); i++)
+ {
+ mVariableMtrrValues[i * 2].Value = ReadMsr(mVariableMtrrValues[i * 2].Index);
+ mVariableMtrrValues[i * 2 + 1].Value = ReadMsr(mVariableMtrrValues[i * 2 + 1].Index);
+ }
+
+ mMiscMsrValues[0].Value = ReadMsr(mMiscMsrValues[0].Index);
+}
+
+
+//<AMI_PHDR_START>
+//----------------------------------------------------------------------------
+// Procedure: RestoreMsrOnCpu
+//
+// Description: This function restores the CPU MSRs during S3 resume.
+//
+// Input: None
+//
+// Output: None
+//
+// Modified:
+//
+// Referrals:
+//
+// Notes:
+//
+//----------------------------------------------------------------------------
+//<AMI_PHDR_END>
+VOID
+RestoreMsrOnCpu(IN VOID *data)
+{
+ UINT32 i;
+ UINTN Cr4;
+
+ Cr4 = MpMtrrSynchUpEntry();
+
+ //Restore Fixed MTRR
+ for(i=0; i < NUM_OF_FIXED_MTRRS; i++)
+ {
+ WriteMsr(mFixedMtrrValues[i].Index, mFixedMtrrValues[i].Value );
+ }
+
+ //Restore variable MTRR
+ for (i = 0; i < ((UINT8)(ReadMsr(MSR_IA32_MTRR_CAP) & VCNT_MASK)); i++)
+ {
+ WriteMsr(mVariableMtrrValues[i * 2].Index, mVariableMtrrValues[i * 2].Value );
+ WriteMsr(mVariableMtrrValues[i * 2 + 1].Index, mVariableMtrrValues[i * 2 + 1].Value );
+ }
+
+ MpMtrrSynchUpExit (Cr4);
+
+ WriteMsr(mMiscMsrValues[0].Index, mMiscMsrValues[0].Value);
+
+}
+
+//<AMI_PHDR_START>
+//----------------------------------------------------------------------------
+// Procedure: RestoreCpuMsr
+//
+// Description: This function restores the CPU MSRs during S3 resume.
+//
+// Input: DispatchHandle Handle to the Dispatcher
+// DispatchContext SW SMM dispatcher context
+//
+// Output: None
+//
+// Modified:
+//
+// Referrals:
+//
+// Notes:
+//
+//----------------------------------------------------------------------------
+//<AMI_PHDR_END>
+VOID
+RestoreCpuMsr(
+ IN EFI_HANDLE DispatchHandle,
+ IN EFI_SMM_SW_DISPATCH_CONTEXT *DispatchContext
+ )
+{
+ UINT32 i;
+ UINTN Cr4;
+
+ if (Shr64(ReadMsr(0x17d),57) & 0x03){
+ if (!(ReadMsr(mSmmFeatureCtrl.Index) && 0x01)){
+ WriteMsr(mSmmFeatureCtrl.Index, (mSmmFeatureCtrl.Value & ~0x01));
+ WriteMsr(mSmmFeatureCtrl.Index, ReadMsr(mSmmFeatureCtrl.Index) | 0x01);
+ }
+ }
+
+ for (i = 0; i < pSmst->NumberOfCpus; ++i) {
+ pSmst->SmmStartupThisAp(RestoreMsrOnCpu, i, NULL);
+ }
+
+ Cr4 = MpMtrrSynchUpEntry();
+ RestoreMsrOnCpu(NULL);
+ MpMtrrSynchUpExit (Cr4);
+}
+
+#define SMRAM_CPU_DATA_VARIABLE_GUID \
+ { \
+ 0x429501d9, 0xe447, 0x40f4, 0x86, 0x7b, 0x75, 0xc9, 0x3a, 0x1d, 0xb5, 0x4e \
+ }
+
+#define SMRAM_CPU_DATA_VARIABLE L"SmramCpuDataVar"
+
+#define SMM_FROM_CPU_DRIVER_SAVE_INFO 0x81
+
+EFI_GUID mSmramCpuDataVariableGuid = SMRAM_CPU_DATA_VARIABLE_GUID;
+BOOLEAN mLocked = FALSE;
+
+/**
+ Dispatch function for a Software SMI handler.
+
+ @param DispatchHandle The handle of this dispatch function.
+ @param DispatchContext The pointer to the dispatch function's context.
+ The SwSmiInputValue field is filled in
+ by the software dispatch driver prior to
+ invoking this dispatch function.
+ The dispatch function will only be called
+ for input values for which it is registered.
+
+ @return None
+
+**/
+VOID
+EFIAPI
+SmramSaveInfoHandler (
+ IN EFI_HANDLE DispatchHandle,
+ IN EFI_SMM_SW_DISPATCH_CONTEXT *DispatchContext
+ )
+/**
+
+@brief
+
+ Dispatch function for a Software SMI handler
+
+ @param[in] DispatchHandle - The handle of this dispatch function.
+ @param[in] DispatchContext - The pointer to the dispatch function's context.
+
+
+**/
+{
+ EFI_STATUS Status;
+ UINT64 VarData[3];
+ UINTN VarSize;
+
+ if (!mLocked && IoRead8 (SW_SMI_IO_ADDRESS+1) == SMM_FROM_CPU_DRIVER_SAVE_INFO) {
+ VarSize = sizeof (VarData);
+ Status = pRS->GetVariable (
+ SMRAM_CPU_DATA_VARIABLE,
+ &mSmramCpuDataVariableGuid,
+ NULL,
+ &VarSize,
+ VarData
+ );
+ if (!EFI_ERROR (Status) && VarSize == sizeof (VarData)) {
+ MemCpy (
+ (VOID *) (UINTN) (VarData[0]),
+ (VOID *) (UINTN) (VarData[1]),
+ (UINTN) (VarData[2])
+ );
+ }
+
+ mLocked = TRUE;
+ }
+}
+
+//<AMI_PHDR_START>
+//----------------------------------------------------------------------------
+// Procedure: CpuSmmFeatureEn
+//
+// Description:
+//
+// Input: DispatchHandle Handle to the Dispatcher
+// DispatchContext SW SMM dispatcher context
+//
+// Output: None
+//
+// Modified:
+//
+// Referrals:
+//
+// Notes:
+//
+//----------------------------------------------------------------------------
+//<AMI_PHDR_END>
+VOID
+CpuSmmFeatureEn(
+ IN EFI_HANDLE DispatchHandle,
+ IN EFI_SMM_SW_DISPATCH_CONTEXT *DispatchContext
+ )
+{
+
+ UINT64 MsrData;
+
+ if (Shr64(ReadMsr(0x17d),58) & 0x01){
+ if (!(ReadMsr(0x4e0) && 0x01)){
+ MsrData = ReadMsr(0x4e0);
+ MsrData |= 0x4;
+ WriteMsr(0x4e0, MsrData);
+ }
+ }
+}
+//<AMI_PHDR_START>
+//----------------------------------------------------------------------------
+// Procedure: InSmmFunction
+//
+// Description: Called from InstallSmiHandler
+//
+// Input:
+//
+//
+// Output: None
+//
+// Modified:
+//
+// Referrals:
+//
+// Notes:
+//
+//----------------------------------------------------------------------------
+//<AMI_PHDR_END>
+EFI_STATUS InSmmFunction(
+ IN EFI_HANDLE ImageHandle,
+ IN EFI_SYSTEM_TABLE *SystemTable
+ )
+{
+
+ EFI_STATUS Status;
+ EFI_HANDLE Handle;
+
+ EFI_SMM_SW_DISPATCH_CONTEXT Save_CPU_MSR = {SW_SMI_SAVE_MSR};
+ EFI_SMM_SW_DISPATCH_CONTEXT Restore_CPU_MSR = {SW_SMI_RESTORE_MSR};
+ EFI_SMM_SW_DISPATCH_CONTEXT CpuDriverSaveInfo = { SMM_FROM_SMBASE_DRIVER };
+ EFI_SMM_SW_DISPATCH_CONTEXT CpuSmmFeatureEnable = {SW_SMI_ENABLE_SMM_FEATURE};
+
+ Status = pBS->LocateProtocol(&SwDispatchProtocolGuid,NULL,&gSwDispatch);
+ if (EFI_ERROR(Status)) {
+ ASSERT_EFI_ERROR(Status);
+ return Status;
+ }
+
+ Status = gSwDispatch->Register(
+ gSwDispatch,
+ SaveCpuMsr,
+ &Save_CPU_MSR,
+ &Handle
+ );
+ if (EFI_ERROR(Status)) {
+ ASSERT_EFI_ERROR(Status);
+ return Status;
+ }
+
+ Status = gSwDispatch->Register(
+ gSwDispatch,
+ RestoreCpuMsr,
+ &Restore_CPU_MSR,
+ &Handle
+ );
+
+ if (EFI_ERROR(Status)) {
+ ASSERT_EFI_ERROR(Status);
+ return Status;
+ }
+
+ Status = gSwDispatch->Register(
+ gSwDispatch,
+ SmramSaveInfoHandler,
+ &CpuDriverSaveInfo,
+ &Handle
+ );
+
+ if (EFI_ERROR(Status)) {
+ ASSERT_EFI_ERROR(Status);
+ return Status;
+ }
+
+ Status = gSwDispatch->Register(
+ gSwDispatch,
+ CpuSmmFeatureEn,
+ &CpuSmmFeatureEnable,
+ &Handle
+ );
+
+ Status = pBS->LocateProtocol(&gEfiSmmBaseProtocolGuid, NULL, &pSmmBase);
+ if (EFI_ERROR(Status)) {
+ return Status;
+ }
+
+ /*Status = pBS->LocateProtocol (&gEfiSmmThunkProtocolGuid, NULL, &mSmmThunk);
+ if (EFI_ERROR(Status)) {
+ TRACE_IDESMM(((UINTN)TRACE_ALWAYS, "SMM Thunk Protocol not located.\n"));
+ } else {
+ TRACE_IDESMM(((UINTN)TRACE_ALWAYS, "SMM Thunk Protocol located.\n"));
+ }*/
+
+ pSmmBase->GetSmstLocation (pSmmBase, &mSmst);
+
+ return EFI_SUCCESS;
+}
+
+//<AMI_PHDR_START>
+//----------------------------------------------------------------------------
+// Procedure: NotInSmmFunction
+//
+// Description: If Not In Smm Function
+//
+// Input:
+//
+//
+// Output: None
+//
+// Modified:
+//
+// Referrals:
+//
+// Notes:
+//
+//----------------------------------------------------------------------------
+//<AMI_PHDR_END>
+EFI_STATUS NotInSmmFunction(
+ )
+{
+ return EFI_SUCCESS;
+}
+
+//<AMI_PHDR_START>
+//----------------------------------------------------------------------------
+// Procedure: CpuSpSmiInit
+//
+// Description: Initializes CPU specific SMM Drivers.
+//
+// Input:
+//
+// Output:
+// EFI_STATUS
+//
+// Modified:
+//
+// Referrals:
+//
+// Notes:
+// Here is the control flow of this function:
+//----------------------------------------------------------------------------
+//<AMI_PHDR_END>
+
+EFI_STATUS CpuSpSmiInit(
+ IN EFI_HANDLE ImageHandle,
+ IN EFI_SYSTEM_TABLE *SystemTable
+ )
+{
+ //EFI_STATUS Status;
+
+ InitAmiLib(ImageHandle,SystemTable);
+
+ //Status = pBS->LocateProtocol(&SwDispatchProtocolGuid,NULL,&gSwDispatch);
+ //if (EFI_ERROR(Status)) return Status;
+//InitSmmHandler
+
+ // return InitSmmHandler(ImageHandle, SystemTable, InSmmFunction, NonSmmElinkFunctions);
+
+ return InitSmmHandler(ImageHandle, SystemTable, InSmmFunction, NULL);
+
+
+}
+
+//**********************************************************************
+//**********************************************************************
+//** **
+//** (C)Copyright 1987-2013, American Megatrends, Inc. **
+//** **
+//** All Rights Reserved. **
+//** **
+//** 5555 Oakbrook Pkwy, Suite 200, Norcross, GA 30093 **
+//** **
+//** Phone: (770)-246-8600 **
+//** **
+//**********************************************************************
+//**********************************************************************
+