/** @file\r
- This module produces the EFI_PEI_S3_RESUME_PPI.\r
+ This module produces the EFI_PEI_S3_RESUME2_PPI.\r
This module works with StandAloneBootScriptExecutor to S3 resume to OS.\r
- This module will excute the boot script saved during last boot and after that,\r
+ This module will execute the boot script saved during last boot and after that,\r
control is passed to OS waking up handler.\r
\r
- Copyright (c) 2006 - 2012, Intel Corporation. All rights reserved.<BR>\r
+ Copyright (c) 2006 - 2017, Intel Corporation. All rights reserved.<BR>\r
+ Copyright (c) 2017, AMD Incorporated. All rights reserved.<BR>\r
\r
This program and the accompanying materials\r
are licensed and made available under the terms and conditions\r
#include <Library/LockBoxLib.h>\r
#include <IndustryStandard/Acpi.h>\r
\r
+/**\r
+ This macro aligns the address of a variable with auto storage\r
+ duration down to CPU_STACK_ALIGNMENT.\r
+\r
+ Since the stack grows downward, the result preserves more of the\r
+ stack than the original address (or the same amount), not less.\r
+**/\r
+#define STACK_ALIGN_DOWN(Ptr) \\r
+ ((UINTN)(Ptr) & ~(UINTN)(CPU_STACK_ALIGNMENT - 1))\r
+\r
+#define PAGING_1G_ADDRESS_MASK_64 0x000FFFFFC0000000ull\r
+\r
#pragma pack(1)\r
typedef union {\r
struct {\r
IN EFI_PEI_S3_RESUME2_PPI *This\r
);\r
\r
+/**\r
+ Set data segment selectors value including DS/ES/FS/GS/SS.\r
+\r
+ @param[in] SelectorValue Segment selector value to be set.\r
+\r
+**/\r
+VOID\r
+EFIAPI\r
+AsmSetDataSelectors (\r
+ IN UINT16 SelectorValue\r
+ );\r
+\r
//\r
// Globals\r
//\r
/* 0x40 */ {{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}},\r
};\r
\r
+#define DATA_SEGEMENT_SELECTOR 0x18\r
+\r
//\r
// IA32 Gdt register\r
//\r
UINT64 Freq;\r
\r
//\r
- // Retrive time stamp count as early as possilbe\r
+ // Retrieve time stamp count as early as possible\r
//\r
Ticker = GetPerformanceCounter ();\r
\r
if ((AsciiStrnCmp (Token, "PEIM", PEI_PERFORMANCE_STRING_SIZE) == 0) && (Handle != NULL)) {\r
AsciiSPrint (PerfData->Token, PERF_TOKEN_LENGTH, "0x%11p", Handle);\r
} else {\r
- AsciiStrnCpy (PerfData->Token, Token, PERF_TOKEN_LENGTH);\r
+ AsciiStrnCpyS (PerfData->Token, PERF_TOKEN_SIZE, Token, PERF_TOKEN_LENGTH);\r
}\r
if (StartTicker == 1) {\r
StartTicker = StartValue;\r
//\r
AsmWriteIdtr (&PeiS3ResumeState->Idtr);\r
\r
+ if (PeiS3ResumeState->ReturnStatus != EFI_SUCCESS) {\r
+ //\r
+ // Report Status code that boot script execution is failed\r
+ //\r
+ REPORT_STATUS_CODE (\r
+ EFI_ERROR_CODE | EFI_ERROR_MINOR,\r
+ (EFI_SOFTWARE_PEI_MODULE | EFI_SW_PEI_EC_S3_BOOT_SCRIPT_ERROR)\r
+ );\r
+ }\r
+\r
+ //\r
+ // NOTE: Because Debug Timer interrupt and system interrupts will be disabled \r
+ // in BootScriptExecuteDxe, the rest code in S3ResumeBootOs() cannot be halted\r
+ // by soft debugger.\r
+ //\r
+\r
PERF_END (NULL, "ScriptExec", NULL, 0);\r
\r
//\r
if ((Facs == NULL) ||\r
(Facs->Signature != EFI_ACPI_4_0_FIRMWARE_ACPI_CONTROL_STRUCTURE_SIGNATURE) ||\r
((Facs->FirmwareWakingVector == 0) && (Facs->XFirmwareWakingVector == 0)) ) {\r
+ //\r
+ // Report Status code that no valid vector is found\r
+ //\r
+ REPORT_STATUS_CODE (\r
+ EFI_ERROR_CODE | EFI_ERROR_MAJOR,\r
+ (EFI_SOFTWARE_PEI_MODULE | EFI_SW_PEI_EC_S3_OS_WAKE_ERROR)\r
+ );\r
CpuDeadLoop ();\r
return ;\r
}\r
// Switch to native waking vector\r
//\r
TempStackTop = (UINTN)&TempStack + sizeof(TempStack);\r
+ DEBUG ((\r
+ DEBUG_INFO,\r
+ "%a() Stack Base: 0x%x, Stack Size: 0x%x\n",\r
+ __FUNCTION__,\r
+ TempStackTop,\r
+ sizeof (TempStack)\r
+ ));\r
if ((Facs->Version == EFI_ACPI_4_0_FIRMWARE_ACPI_CONTROL_STRUCTURE_VERSION) &&\r
((Facs->Flags & EFI_ACPI_4_0_64BIT_WAKE_SUPPORTED_F) != 0) &&\r
((Facs->Flags & EFI_ACPI_4_0_OSPM_64BIT_WAKE__F) != 0)) {\r
//\r
// X64 long mode waking vector\r
//\r
- DEBUG (( EFI_D_ERROR, "Transfer to 64bit OS waking vector - %x\r\n", (UINTN)Facs->XFirmwareWakingVector));\r
+ DEBUG ((DEBUG_INFO, "Transfer to 64bit OS waking vector - %x\r\n", (UINTN)Facs->XFirmwareWakingVector));\r
if (FeaturePcdGet (PcdDxeIplSwitchToLongMode)) {\r
AsmEnablePaging64 (\r
0x38,\r
(UINT64)(UINTN)TempStackTop\r
);\r
} else {\r
+ //\r
+ // Report Status code that no valid waking vector is found\r
+ //\r
+ REPORT_STATUS_CODE (\r
+ EFI_ERROR_CODE | EFI_ERROR_MAJOR,\r
+ (EFI_SOFTWARE_PEI_MODULE | EFI_SW_PEI_EC_S3_OS_WAKE_ERROR)\r
+ );\r
DEBUG (( EFI_D_ERROR, "Unsupported for 32bit DXE transfer to 64bit OS waking vector!\r\n"));\r
ASSERT (FALSE);\r
+ CpuDeadLoop ();\r
+ return ;\r
}\r
} else {\r
//\r
// IA32 protected mode waking vector (Page disabled)\r
//\r
- DEBUG (( EFI_D_ERROR, "Transfer to 32bit OS waking vector - %x\r\n", (UINTN)Facs->XFirmwareWakingVector));\r
+ DEBUG ((DEBUG_INFO, "Transfer to 32bit OS waking vector - %x\r\n", (UINTN)Facs->XFirmwareWakingVector));\r
SwitchStack (\r
(SWITCH_STACK_ENTRY_POINT) (UINTN) Facs->XFirmwareWakingVector,\r
NULL,\r
//\r
// 16bit Realmode waking vector\r
//\r
- DEBUG (( EFI_D_ERROR, "Transfer to 16bit OS waking vector - %x\r\n", (UINTN)Facs->FirmwareWakingVector));\r
+ DEBUG ((DEBUG_INFO, "Transfer to 16bit OS waking vector - %x\r\n", (UINTN)Facs->FirmwareWakingVector));\r
AsmTransferControl (Facs->FirmwareWakingVector, 0x0);\r
}\r
\r
+ //\r
+ // Report Status code the failure of S3Resume\r
+ //\r
+ REPORT_STATUS_CODE (\r
+ EFI_ERROR_CODE | EFI_ERROR_MAJOR,\r
+ (EFI_SOFTWARE_PEI_MODULE | EFI_SW_PEI_EC_S3_OS_WAKE_ERROR)\r
+ );\r
+\r
//\r
// Never run to here\r
//\r
VOID *Hob;\r
BOOLEAN Page1GSupport;\r
PAGE_TABLE_1G_ENTRY *PageDirectory1GEntry;\r
+ UINT64 AddressEncMask;\r
+\r
+ //\r
+ // Make sure AddressEncMask is contained to smallest supported address field\r
+ //\r
+ AddressEncMask = PcdGet64 (PcdPteMemoryEncryptionAddressOrMask) & PAGING_1G_ADDRESS_MASK_64;\r
\r
//\r
// NOTE: We have to ASSUME the page table generation format, because we do not know whole page table information.\r
// The whole page table is too large to be saved in SMRAM.\r
//\r
- // The assumption is : whole page table is allocated in CONTINOUS memory and CR3 points to TOP page.\r
+ // The assumption is : whole page table is allocated in CONTINUOUS memory and CR3 points to TOP page.\r
//\r
- DEBUG ((EFI_D_ERROR, "S3NvsPageTableAddress - %x (%x)\n", (UINTN)S3NvsPageTableAddress, (UINTN)Build4GPageTableOnly));\r
+ DEBUG ((DEBUG_INFO, "S3NvsPageTableAddress - %x (%x)\n", (UINTN)S3NvsPageTableAddress, (UINTN)Build4GPageTableOnly));\r
\r
//\r
- // By architecture only one PageMapLevel4 exists - so lets allocate storgage for it.\r
+ // By architecture only one PageMapLevel4 exists - so lets allocate storage for it.\r
//\r
PageMap = (PAGE_MAP_AND_DIRECTORY_POINTER *)S3NvsPageTableAddress;\r
S3NvsPageTableAddress += SIZE_4KB;\r
//\r
// Make a PML4 Entry\r
//\r
- PageMapLevel4Entry->Uint64 = (UINT64)(UINTN)PageDirectoryPointerEntry;\r
+ PageMapLevel4Entry->Uint64 = (UINT64)(UINTN)PageDirectoryPointerEntry | AddressEncMask;\r
PageMapLevel4Entry->Bits.ReadWrite = 1;\r
PageMapLevel4Entry->Bits.Present = 1;\r
\r
//\r
// Fill in the Page Directory entries\r
//\r
- PageDirectory1GEntry->Uint64 = (UINT64)PageAddress;\r
+ PageDirectory1GEntry->Uint64 = (UINT64)PageAddress | AddressEncMask;\r
PageDirectory1GEntry->Bits.ReadWrite = 1;\r
PageDirectory1GEntry->Bits.Present = 1;\r
PageDirectory1GEntry->Bits.MustBe1 = 1;\r
//\r
// Fill in a Page Directory Pointer Entries\r
//\r
- PageDirectoryPointerEntry->Uint64 = (UINT64)(UINTN)PageDirectoryEntry;\r
+ PageDirectoryPointerEntry->Uint64 = (UINT64)(UINTN)PageDirectoryEntry | AddressEncMask;\r
PageDirectoryPointerEntry->Bits.ReadWrite = 1;\r
PageDirectoryPointerEntry->Bits.Present = 1;\r
\r
//\r
// Fill in the Page Directory entries\r
//\r
- PageDirectoryEntry->Uint64 = (UINT64)PageAddress;\r
+ PageDirectoryEntry->Uint64 = (UINT64)PageAddress | AddressEncMask;\r
PageDirectoryEntry->Bits.ReadWrite = 1;\r
PageDirectoryEntry->Bits.Present = 1;\r
PageDirectoryEntry->Bits.MustBe1 = 1;\r
IA32_DESCRIPTOR *IdtDescriptor;\r
VOID *IdtBuffer;\r
PEI_S3_RESUME_STATE *PeiS3ResumeState;\r
+ BOOLEAN InterruptStatus;\r
\r
- DEBUG ((EFI_D_ERROR, "S3ResumeExecuteBootScript()\n"));\r
+ DEBUG ((DEBUG_INFO, "S3ResumeExecuteBootScript()\n"));\r
\r
//\r
// Attempt to use content from SMRAM first\r
(VOID **) &SmmAccess\r
);\r
if (!EFI_ERROR (Status)) {\r
- DEBUG ((EFI_D_ERROR, "Close all SMRAM regions before executing boot script\n"));\r
+ DEBUG ((DEBUG_INFO, "Close all SMRAM regions before executing boot script\n"));\r
\r
for (Index = 0, Status = EFI_SUCCESS; !EFI_ERROR (Status); Index++) {\r
Status = SmmAccess->Close ((EFI_PEI_SERVICES **)GetPeiServicesTablePointer (), SmmAccess, Index);\r
}\r
\r
- DEBUG ((EFI_D_ERROR, "Lock all SMRAM regions before executing boot script\n"));\r
+ DEBUG ((DEBUG_INFO, "Lock all SMRAM regions before executing boot script\n"));\r
\r
for (Index = 0, Status = EFI_SUCCESS; !EFI_ERROR (Status); Index++) {\r
Status = SmmAccess->Lock ((EFI_PEI_SERVICES **)GetPeiServicesTablePointer (), SmmAccess, Index);\r
//\r
IdtDescriptor = (IA32_DESCRIPTOR *) (UINTN) (AcpiS3Context->IdtrProfile);\r
//\r
- // Make sure the newly allcated IDT align with 16-bytes\r
+ // Make sure the newly allocated IDT align with 16-bytes\r
// \r
IdtBuffer = AllocatePages (EFI_SIZE_TO_PAGES((IdtDescriptor->Limit + 1) + 16));\r
- ASSERT (IdtBuffer != NULL);\r
+ if (IdtBuffer == NULL) {\r
+ REPORT_STATUS_CODE (\r
+ EFI_ERROR_CODE | EFI_ERROR_MAJOR,\r
+ (EFI_SOFTWARE_PEI_MODULE | EFI_SW_PEI_EC_S3_RESUME_FAILED)\r
+ );\r
+ ASSERT (FALSE);\r
+ }\r
//\r
// Additional 16 bytes allocated to save IA32 IDT descriptor and Pei Service Table Pointer\r
// IA32 IDT descriptor will be used to setup IA32 IDT table for 32-bit Framework Boot Script code\r
*(UINTN*)(IdtDescriptor->Base - sizeof(UINTN)) = (UINTN)GetPeiServicesTablePointer ();\r
}\r
\r
+ InterruptStatus = SaveAndDisableInterrupts ();\r
//\r
// Need to make sure the GDT is loaded with values that support long mode and real mode.\r
//\r
AsmWriteGdtr (&mGdt);\r
+ //\r
+ // update segment selectors per the new GDT.\r
+ //\r
+ AsmSetDataSelectors (DATA_SEGEMENT_SELECTOR);\r
+ //\r
+ // Restore interrupt state.\r
+ //\r
+ SetInterruptState (InterruptStatus);\r
\r
//\r
// Prepare data for return back\r
//\r
PeiS3ResumeState = AllocatePool (sizeof(*PeiS3ResumeState));\r
- ASSERT (PeiS3ResumeState != NULL);\r
- DEBUG (( EFI_D_ERROR, "PeiS3ResumeState - %x\r\n", PeiS3ResumeState));\r
+ if (PeiS3ResumeState == NULL) {\r
+ REPORT_STATUS_CODE (\r
+ EFI_ERROR_CODE | EFI_ERROR_MAJOR,\r
+ (EFI_SOFTWARE_PEI_MODULE | EFI_SW_PEI_EC_S3_RESUME_FAILED)\r
+ );\r
+ ASSERT (FALSE);\r
+ }\r
+ DEBUG ((DEBUG_INFO, "PeiS3ResumeState - %x\r\n", PeiS3ResumeState));\r
PeiS3ResumeState->ReturnCs = 0x10;\r
PeiS3ResumeState->ReturnEntryPoint = (EFI_PHYSICAL_ADDRESS)(UINTN)S3ResumeBootOs;\r
- PeiS3ResumeState->ReturnStackPointer = (EFI_PHYSICAL_ADDRESS)(UINTN)&Status;\r
+ PeiS3ResumeState->ReturnStackPointer = (EFI_PHYSICAL_ADDRESS)STACK_ALIGN_DOWN (&Status);\r
//\r
// Save IDT\r
//\r
AsmReadIdtr (&PeiS3ResumeState->Idtr);\r
+ \r
+ //\r
+ // Report Status Code to indicate S3 boot script execution\r
+ //\r
+ REPORT_STATUS_CODE (EFI_PROGRESS_CODE, EFI_SOFTWARE_PEI_MODULE | EFI_SW_PEI_PC_S3_BOOT_SCRIPT);\r
\r
PERF_START (NULL, "ScriptExec", NULL, 0);\r
\r
//\r
// X64 S3 Resume\r
//\r
- DEBUG (( EFI_D_ERROR, "Enable X64 and transfer control to Standalone Boot Script Executor\r\n"));\r
+ DEBUG ((DEBUG_INFO, "Enable X64 and transfer control to Standalone Boot Script Executor\r\n"));\r
\r
//\r
// Switch to long mode to complete resume.\r
//\r
// IA32 S3 Resume\r
//\r
- DEBUG (( EFI_D_ERROR, "transfer control to Standalone Boot Script Executor\r\n"));\r
+ DEBUG ((DEBUG_INFO, "transfer control to Standalone Boot Script Executor\r\n"));\r
SwitchStack (\r
(SWITCH_STACK_ENTRY_POINT) (UINTN) EfiBootScriptExecutorVariable->BootScriptExecutorEntrypoint,\r
(VOID *)AcpiS3Context,\r
SMM_S3_RESUME_STATE *SmmS3ResumeState;\r
VOID *GuidHob;\r
BOOLEAN Build4GPageTableOnly;\r
+ BOOLEAN InterruptStatus;\r
\r
TempAcpiS3Context = 0;\r
TempEfiBootScriptExecutorVariable = 0;\r
\r
- DEBUG ((EFI_D_ERROR, "Enter S3 PEIM\r\n"));\r
+ DEBUG ((DEBUG_INFO, "Enter S3 PEIM\r\n"));\r
\r
VarSize = sizeof (EFI_PHYSICAL_ADDRESS);\r
Status = RestoreLockBox (\r
EfiBootScriptExecutorVariable = (BOOT_SCRIPT_EXECUTOR_VARIABLE *) (UINTN) TempEfiBootScriptExecutorVariable;\r
ASSERT (EfiBootScriptExecutorVariable != NULL);\r
\r
- DEBUG (( EFI_D_ERROR, "AcpiS3Context = %x\n", AcpiS3Context));\r
- DEBUG (( EFI_D_ERROR, "Waking Vector = %x\n", ((EFI_ACPI_2_0_FIRMWARE_ACPI_CONTROL_STRUCTURE *) ((UINTN) (AcpiS3Context->AcpiFacsTable)))->FirmwareWakingVector));\r
- DEBUG (( EFI_D_ERROR, "AcpiS3Context->AcpiFacsTable = %x\n", AcpiS3Context->AcpiFacsTable));\r
- DEBUG (( EFI_D_ERROR, "AcpiS3Context->S3NvsPageTableAddress = %x\n", AcpiS3Context->S3NvsPageTableAddress));\r
- DEBUG (( EFI_D_ERROR, "AcpiS3Context->S3DebugBufferAddress = %x\n", AcpiS3Context->S3DebugBufferAddress));\r
- DEBUG (( EFI_D_ERROR, "EfiBootScriptExecutorVariable->BootScriptExecutorEntrypoint = %x\n", EfiBootScriptExecutorVariable->BootScriptExecutorEntrypoint));\r
+ DEBUG (( DEBUG_INFO, "AcpiS3Context = %x\n", AcpiS3Context));\r
+ DEBUG (( DEBUG_INFO, "Waking Vector = %x\n", ((EFI_ACPI_2_0_FIRMWARE_ACPI_CONTROL_STRUCTURE *) ((UINTN) (AcpiS3Context->AcpiFacsTable)))->FirmwareWakingVector));\r
+ DEBUG (( DEBUG_INFO, "AcpiS3Context->AcpiFacsTable = %x\n", AcpiS3Context->AcpiFacsTable));\r
+ DEBUG (( DEBUG_INFO, "AcpiS3Context->IdtrProfile = %x\n", AcpiS3Context->IdtrProfile)); \r
+ DEBUG (( DEBUG_INFO, "AcpiS3Context->S3NvsPageTableAddress = %x\n", AcpiS3Context->S3NvsPageTableAddress));\r
+ DEBUG (( DEBUG_INFO, "AcpiS3Context->S3DebugBufferAddress = %x\n", AcpiS3Context->S3DebugBufferAddress));\r
+ DEBUG (( DEBUG_INFO, "AcpiS3Context->BootScriptStackBase = %x\n", AcpiS3Context->BootScriptStackBase));\r
+ DEBUG (( DEBUG_INFO, "AcpiS3Context->BootScriptStackSize = %x\n", AcpiS3Context->BootScriptStackSize));\r
+ DEBUG (( DEBUG_INFO, "EfiBootScriptExecutorVariable->BootScriptExecutorEntrypoint = %x\n", EfiBootScriptExecutorVariable->BootScriptExecutorEntrypoint));\r
\r
//\r
// Additional step for BootScript integrity - we only handle BootScript and BootScriptExecutor.\r
SmmS3ResumeState->ReturnEntryPoint = (EFI_PHYSICAL_ADDRESS)(UINTN)S3ResumeExecuteBootScript;\r
SmmS3ResumeState->ReturnContext1 = (EFI_PHYSICAL_ADDRESS)(UINTN)AcpiS3Context;\r
SmmS3ResumeState->ReturnContext2 = (EFI_PHYSICAL_ADDRESS)(UINTN)EfiBootScriptExecutorVariable;\r
- SmmS3ResumeState->ReturnStackPointer = (EFI_PHYSICAL_ADDRESS)(UINTN)&Status;\r
-\r
- DEBUG (( EFI_D_ERROR, "SMM S3 Signature = %x\n", SmmS3ResumeState->Signature));\r
- DEBUG (( EFI_D_ERROR, "SMM S3 Stack Base = %x\n", SmmS3ResumeState->SmmS3StackBase));\r
- DEBUG (( EFI_D_ERROR, "SMM S3 Stack Size = %x\n", SmmS3ResumeState->SmmS3StackSize));\r
- DEBUG (( EFI_D_ERROR, "SMM S3 Resume Entry Point = %x\n", SmmS3ResumeState->SmmS3ResumeEntryPoint));\r
- DEBUG (( EFI_D_ERROR, "SMM S3 CR0 = %x\n", SmmS3ResumeState->SmmS3Cr0));\r
- DEBUG (( EFI_D_ERROR, "SMM S3 CR3 = %x\n", SmmS3ResumeState->SmmS3Cr3));\r
- DEBUG (( EFI_D_ERROR, "SMM S3 CR4 = %x\n", SmmS3ResumeState->SmmS3Cr4));\r
- DEBUG (( EFI_D_ERROR, "SMM S3 Return CS = %x\n", SmmS3ResumeState->ReturnCs));\r
- DEBUG (( EFI_D_ERROR, "SMM S3 Return Entry Point = %x\n", SmmS3ResumeState->ReturnEntryPoint));\r
- DEBUG (( EFI_D_ERROR, "SMM S3 Return Context1 = %x\n", SmmS3ResumeState->ReturnContext1));\r
- DEBUG (( EFI_D_ERROR, "SMM S3 Return Context2 = %x\n", SmmS3ResumeState->ReturnContext2));\r
- DEBUG (( EFI_D_ERROR, "SMM S3 Return Stack Pointer = %x\n", SmmS3ResumeState->ReturnStackPointer));\r
- DEBUG (( EFI_D_ERROR, "SMM S3 Smst = %x\n", SmmS3ResumeState->Smst));\r
-\r
- //\r
- // Disable interrupt of Debug timer.\r
- //\r
- SaveAndSetDebugTimerInterrupt (FALSE);\r
+ SmmS3ResumeState->ReturnStackPointer = (EFI_PHYSICAL_ADDRESS)STACK_ALIGN_DOWN (&Status);\r
+\r
+ DEBUG (( DEBUG_INFO, "SMM S3 Signature = %x\n", SmmS3ResumeState->Signature));\r
+ DEBUG (( DEBUG_INFO, "SMM S3 Stack Base = %x\n", SmmS3ResumeState->SmmS3StackBase));\r
+ DEBUG (( DEBUG_INFO, "SMM S3 Stack Size = %x\n", SmmS3ResumeState->SmmS3StackSize));\r
+ DEBUG (( DEBUG_INFO, "SMM S3 Resume Entry Point = %x\n", SmmS3ResumeState->SmmS3ResumeEntryPoint));\r
+ DEBUG (( DEBUG_INFO, "SMM S3 CR0 = %x\n", SmmS3ResumeState->SmmS3Cr0));\r
+ DEBUG (( DEBUG_INFO, "SMM S3 CR3 = %x\n", SmmS3ResumeState->SmmS3Cr3));\r
+ DEBUG (( DEBUG_INFO, "SMM S3 CR4 = %x\n", SmmS3ResumeState->SmmS3Cr4));\r
+ DEBUG (( DEBUG_INFO, "SMM S3 Return CS = %x\n", SmmS3ResumeState->ReturnCs));\r
+ DEBUG (( DEBUG_INFO, "SMM S3 Return Entry Point = %x\n", SmmS3ResumeState->ReturnEntryPoint));\r
+ DEBUG (( DEBUG_INFO, "SMM S3 Return Context1 = %x\n", SmmS3ResumeState->ReturnContext1));\r
+ DEBUG (( DEBUG_INFO, "SMM S3 Return Context2 = %x\n", SmmS3ResumeState->ReturnContext2));\r
+ DEBUG (( DEBUG_INFO, "SMM S3 Return Stack Pointer = %x\n", SmmS3ResumeState->ReturnStackPointer));\r
+ DEBUG (( DEBUG_INFO, "SMM S3 Smst = %x\n", SmmS3ResumeState->Smst));\r
\r
if (SmmS3ResumeState->Signature == SMM_S3_RESUME_SMM_32) {\r
SwitchStack (\r
// Switch to long mode to complete resume.\r
//\r
\r
+ InterruptStatus = SaveAndDisableInterrupts ();\r
//\r
// Need to make sure the GDT is loaded with values that support long mode and real mode.\r
//\r
AsmWriteGdtr (&mGdt);\r
+ //\r
+ // update segment selectors per the new GDT.\r
+ // \r
+ AsmSetDataSelectors (DATA_SEGEMENT_SELECTOR);\r
+ //\r
+ // Restore interrupt state.\r
+ //\r
+ SetInterruptState (InterruptStatus);\r
+\r
AsmWriteCr3 ((UINTN)SmmS3ResumeState->SmmS3Cr3);\r
+\r
+ //\r
+ // Disable interrupt of Debug timer, since IDT table cannot work in long mode.\r
+ // NOTE: On x64 platforms, because DisablePaging64() will disable interrupts,\r
+ // the code in S3ResumeExecuteBootScript() cannot be halted by soft debugger.\r
+ //\r
+ SaveAndSetDebugTimerInterrupt (FALSE);\r
+\r
AsmEnablePaging64 (\r
0x38,\r
SmmS3ResumeState->SmmS3ResumeEntryPoint,\r
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