diff options
| author | Guo Mang <mang.guo@intel.com> | 2017-08-02 09:54:47 +0800 |
|---|---|---|
| committer | Guo Mang <mang.guo@intel.com> | 2017-09-05 19:45:08 +0800 |
| commit | 6c128c65b5ec0e5b8b5a0ccb165f3afd29e485f8 (patch) | |
| tree | 444372d92a0ae8991fe4d15eb3937df43690dfda /UefiCpuPkg/CpuDxe | |
| parent | b207c6434d7a5a4502975d322312e07017e8a8cb (diff) | |
| download | edk2-platforms-6c128c65b5ec0e5b8b5a0ccb165f3afd29e485f8.tar.xz | |
Remove core packages since we can get them from edk2 repository
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Guo Mang <mang.guo@intel.com>
Diffstat (limited to 'UefiCpuPkg/CpuDxe')
| -rw-r--r-- | UefiCpuPkg/CpuDxe/ApStartup.c | 478 | ||||
| -rw-r--r-- | UefiCpuPkg/CpuDxe/CpuDxe.c | 905 | ||||
| -rw-r--r-- | UefiCpuPkg/CpuDxe/CpuDxe.h | 256 | ||||
| -rw-r--r-- | UefiCpuPkg/CpuDxe/CpuDxe.inf | 94 | ||||
| -rw-r--r-- | UefiCpuPkg/CpuDxe/CpuDxe.uni | bin | 1756 -> 0 bytes | |||
| -rw-r--r-- | UefiCpuPkg/CpuDxe/CpuDxeExtra.uni | bin | 1352 -> 0 bytes | |||
| -rw-r--r-- | UefiCpuPkg/CpuDxe/CpuGdt.c | 150 | ||||
| -rw-r--r-- | UefiCpuPkg/CpuDxe/CpuGdt.h | 72 | ||||
| -rw-r--r-- | UefiCpuPkg/CpuDxe/CpuMp.c | 1709 | ||||
| -rw-r--r-- | UefiCpuPkg/CpuDxe/CpuMp.h | 647 | ||||
| -rw-r--r-- | UefiCpuPkg/CpuDxe/Ia32/CpuAsm.S | 57 | ||||
| -rw-r--r-- | UefiCpuPkg/CpuDxe/Ia32/CpuAsm.asm | 58 | ||||
| -rw-r--r-- | UefiCpuPkg/CpuDxe/Ia32/MpAsm.asm | 76 | ||||
| -rw-r--r-- | UefiCpuPkg/CpuDxe/Ia32/MpAsm.nasm | 68 | ||||
| -rw-r--r-- | UefiCpuPkg/CpuDxe/X64/CpuAsm.S | 60 | ||||
| -rw-r--r-- | UefiCpuPkg/CpuDxe/X64/CpuAsm.asm | 54 | ||||
| -rw-r--r-- | UefiCpuPkg/CpuDxe/X64/MpAsm.asm | 76 | ||||
| -rw-r--r-- | UefiCpuPkg/CpuDxe/X64/MpAsm.nasm | 70 |
18 files changed, 0 insertions, 4830 deletions
diff --git a/UefiCpuPkg/CpuDxe/ApStartup.c b/UefiCpuPkg/CpuDxe/ApStartup.c deleted file mode 100644 index 38a9c0e6ea..0000000000 --- a/UefiCpuPkg/CpuDxe/ApStartup.c +++ /dev/null @@ -1,478 +0,0 @@ -/** @file
- CPU DXE AP Startup
-
- Copyright (c) 2008 - 2015, Intel Corporation. All rights reserved.<BR>
- This program and the accompanying materials
- are licensed and made available under the terms and conditions of the BSD License
- which accompanies this distribution. The full text of the license may be found at
- http://opensource.org/licenses/bsd-license.php
-
- THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
- WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
-
-**/
-
-#include "CpuDxe.h"
-#include "CpuGdt.h"
-#include "CpuMp.h"
-
-#pragma pack(1)
-
-typedef struct {
- UINT8 MoveIa32EferMsrToEcx[5];
- UINT8 ReadIa32EferMsr[2];
- UINT8 SetExecuteDisableBitEnableBit[4];
- UINT8 WriteIa32EferMsr[2];
-
-#if defined (MDE_CPU_IA32)
- UINT8 MovEaxCr3;
- UINT32 Cr3Value;
- UINT8 MovCr3Eax[3];
-
- UINT8 MoveCr4ToEax[3];
- UINT8 SetCr4Bit5[4];
- UINT8 MoveEaxToCr4[3];
-
- UINT8 MoveCr0ToEax[3];
- UINT8 SetCr0PagingBit[4];
- UINT8 MoveEaxToCr0[3];
-#endif
-} ENABLE_EXECUTE_DISABLE_CODE;
-
-ENABLE_EXECUTE_DISABLE_CODE mEnableExecuteDisableCodeTemplate = {
- { 0xB9, 0x80, 0x00, 0x00, 0xC0 }, // mov ecx, 0xc0000080
- { 0x0F, 0x32 }, // rdmsr
- { 0x0F, 0xBA, 0xE8, 0x0B }, // bts eax, 11
- { 0x0F, 0x30 }, // wrmsr
-
-#if defined (MDE_CPU_IA32)
- 0xB8, 0x00000000, // mov eax, cr3 value
- { 0x0F, 0x22, 0xd8 }, // mov cr3, eax
-
- { 0x0F, 0x20, 0xE0 }, // mov eax, cr4
- { 0x0F, 0xBA, 0xE8, 0x05 }, // bts eax, 5
- { 0x0F, 0x22, 0xE0 }, // mov cr4, eax
-
- { 0x0F, 0x20, 0xC0 }, // mov eax, cr0
- { 0x0F, 0xBA, 0xE8, 0x1F }, // bts eax, 31
- { 0x0F, 0x22, 0xC0 }, // mov cr0, eax
-#endif
-};
-
-typedef struct {
- UINT8 JmpToCli[2];
-
- UINT16 GdtLimit;
- UINT32 GdtBase;
-
- UINT8 Cli;
-
- UINT8 MovAxRealSegment; UINT16 RealSegment;
- UINT8 MovDsAx[2];
-
- UINT8 MovBxGdtr[3];
- UINT8 LoadGdt[5];
-
- UINT8 MovEaxCr0[2];
- UINT32 MovEaxCr0Value;
- UINT8 MovCr0Eax[3];
-
- UINT8 FarJmp32Flat[2]; UINT32 FlatJmpOffset; UINT16 FlatJmpSelector;
-
- //
- // Now in IA32
- //
- UINT8 MovEaxCr4;
- UINT32 MovEaxCr4Value;
- UINT8 MovCr4Eax[3];
-
- UINT8 MoveDataSelectorIntoAx[2]; UINT16 FlatDataSelector;
- UINT8 MoveFlatDataSelectorFromAxToDs[2];
- UINT8 MoveFlatDataSelectorFromAxToEs[2];
- UINT8 MoveFlatDataSelectorFromAxToFs[2];
- UINT8 MoveFlatDataSelectorFromAxToGs[2];
- UINT8 MoveFlatDataSelectorFromAxToSs[2];
-
- //
- // Code placeholder to enable PAE Execute Disable for IA32
- // and enable Execute Disable Bit for X64
- //
- ENABLE_EXECUTE_DISABLE_CODE EnableExecuteDisable;
-
-#if defined (MDE_CPU_X64)
- //
- // Transition to X64
- //
- UINT8 MovEaxCr3;
- UINT32 Cr3Value;
- UINT8 MovCr3Eax[3];
-
- UINT8 MoveCr4ToEax[3];
- UINT8 SetCr4Bit5[4];
- UINT8 MoveEaxToCr4[3];
-
- UINT8 MoveLongModeEnableMsrToEcx[5];
- UINT8 ReadLmeMsr[2];
- UINT8 SetLongModeEnableBit[4];
- UINT8 WriteLmeMsr[2];
-
- UINT8 MoveCr0ToEax[3];
- UINT8 SetCr0PagingBit[4];
- UINT8 MoveEaxToCr0[3];
- //UINT8 DeadLoop[2];
-
- UINT8 FarJmp32LongMode; UINT32 LongJmpOffset; UINT16 LongJmpSelector;
-#endif // defined (MDE_CPU_X64)
-
-#if defined (MDE_CPU_X64)
- UINT8 MovEaxOrRaxCpuDxeEntry[2]; UINTN CpuDxeEntryValue;
-#else
- UINT8 MovEaxOrRaxCpuDxeEntry; UINTN CpuDxeEntryValue;
-#endif
- UINT8 JmpToCpuDxeEntry[2];
-
-} STARTUP_CODE;
-
-#pragma pack()
-
-/**
- This .asm code used for translating processor from 16 bit real mode into
- 64 bit long mode. which help to create the mStartupCodeTemplate value.
-
- To assemble:
- * nasm -o ApStartup ApStartup.asm
- Then disassemble:
- * ndisasm -b 16 ApStartup
- * ndisasm -b 16 -e 6 ApStartup
- * ndisasm -b 32 -e 32 ApStartup (This -e offset may need adjustment)
- * ndisasm -b 64 -e 0x83 ApStartup (This -e offset may need adjustment)
-
- %define DEFAULT_CR0 0x00000023
- %define DEFAULT_CR4 0x640
-
- BITS 16
-
- jmp short TransitionFromReal16To32BitFlat
-
- ALIGN 2
-
- Gdtr:
- dw 0x5a5a
- dd 0x5a5a5a5a
-
- ;
- ; Modified: EAX, EBX
- ;
- TransitionFromReal16To32BitFlat:
-
- cli
- mov ax, 0x5a5a
- mov ds, ax
-
- mov bx, Gdtr
- o32 lgdt [ds:bx]
-
- mov eax, cr4
- btc eax, 5
- mov cr4, eax
-
- mov eax, DEFAULT_CR0
- mov cr0, eax
-
- jmp 0x5a5a:dword jumpTo32BitAndLandHere
- BITS 32
- jumpTo32BitAndLandHere:
-
- mov eax, DEFAULT_CR4
- mov cr4, eax
-
- mov ax, 0x5a5a
- mov ds, ax
- mov es, ax
- mov fs, ax
- mov gs, ax
- mov ss, ax
-
- ;
- ; Jump to CpuDxe for IA32
- ;
- mov eax, 0x5a5a5a5a
- or eax, eax
- jz Transition32FlatTo64Flat
- jmp eax
-
- ;
- ; Transition to X64
- ;
- Transition32FlatTo64Flat:
- mov eax, 0x5a5a5a5a
- mov cr3, eax
-
- mov eax, cr4
- bts eax, 5 ; enable PAE
- mov cr4, eax
-
- mov ecx, 0xc0000080
- rdmsr
- bts eax, 8 ; set LME
- wrmsr
-
- mov eax, cr0
- bts eax, 31 ; set PG
- mov cr0, eax ; enable paging
-
- ;
- ; Jump to CpuDxe for X64
- ;
- jmp 0x5a5a:jumpTo64BitAndLandHere
- BITS 64
- jumpTo64BitAndLandHere:
- mov rax, 0xcdcdcdcdcdcdcdcd
- jmp rax
-**/
-STARTUP_CODE mStartupCodeTemplate = {
- { 0xeb, 0x06 }, // Jump to cli
- 0, // GDT Limit
- 0, // GDT Base
- 0xfa, // cli (Clear Interrupts)
- 0xb8, 0x0000, // mov ax, RealSegment
- { 0x8e, 0xd8 }, // mov ds, ax
- { 0xBB, 0x02, 0x00 }, // mov bx, Gdtr
- { 0x3e, 0x66, 0x0f, 0x01, 0x17 }, // lgdt [ds:bx]
- { 0x66, 0xB8 }, 0x00000023, // mov eax, cr0 value
- { 0x0F, 0x22, 0xC0 }, // mov cr0, eax
- { 0x66, 0xEA }, // far jmp to 32-bit flat
- OFFSET_OF(STARTUP_CODE, MovEaxCr4),
- LINEAR_CODE_SEL,
- 0xB8, 0x00000640, // mov eax, cr4 value
- { 0x0F, 0x22, 0xe0 }, // mov cr4, eax
- { 0x66, 0xb8 }, CPU_DATA_SEL, // mov ax, FlatDataSelector
- { 0x8e, 0xd8 }, // mov ds, ax
- { 0x8e, 0xc0 }, // mov es, ax
- { 0x8e, 0xe0 }, // mov fs, ax
- { 0x8e, 0xe8 }, // mov gs, ax
- { 0x8e, 0xd0 }, // mov ss, ax
-
-#if defined (MDE_CPU_X64)
- //
- // Code placeholder to enable Execute Disable Bit for X64
- // Default is all NOP - No Operation
- //
- {
- { 0x90, 0x90, 0x90, 0x90, 0x90 },
- { 0x90, 0x90 },
- { 0x90, 0x90, 0x90, 0x90 },
- { 0x90, 0x90 },
- },
-
- 0xB8, 0x00000000, // mov eax, cr3 value
- { 0x0F, 0x22, 0xd8 }, // mov cr3, eax
-
- { 0x0F, 0x20, 0xE0 }, // mov eax, cr4
- { 0x0F, 0xBA, 0xE8, 0x05 }, // bts eax, 5
- { 0x0F, 0x22, 0xE0 }, // mov cr4, eax
-
- { 0xB9, 0x80, 0x00, 0x00, 0xC0 }, // mov ecx, 0xc0000080
- { 0x0F, 0x32 }, // rdmsr
- { 0x0F, 0xBA, 0xE8, 0x08 }, // bts eax, 8
- { 0x0F, 0x30 }, // wrmsr
-
- { 0x0F, 0x20, 0xC0 }, // mov eax, cr0
- { 0x0F, 0xBA, 0xE8, 0x1F }, // bts eax, 31
- { 0x0F, 0x22, 0xC0 }, // mov cr0, eax
-
- 0xEA, // FarJmp32LongMode
- OFFSET_OF(STARTUP_CODE, MovEaxOrRaxCpuDxeEntry),
- LINEAR_CODE64_SEL,
-#else
- //
- // Code placeholder to enable PAE Execute Disable for IA32
- // Default is all NOP - No Operation
- //
- {
- { 0x90, 0x90, 0x90, 0x90, 0x90 },
- { 0x90, 0x90 },
- { 0x90, 0x90, 0x90, 0x90 },
- { 0x90, 0x90 },
-
- 0x90, 0x90909090,
- { 0x90, 0x90, 0x90 },
-
- { 0x90, 0x90, 0x90 },
- { 0x90, 0x90, 0x90, 0x90 },
- { 0x90, 0x90, 0x90 },
-
- { 0x90, 0x90, 0x90 },
- { 0x90, 0x90, 0x90, 0x90 },
- { 0x90, 0x90, 0x90 },
- },
-#endif
-
- //0xeb, 0xfe, // jmp $
-#if defined (MDE_CPU_X64)
- { 0x48, 0xb8 }, 0x0, // mov rax, X64 CpuDxe MP Entry Point
-#else
- 0xB8, 0x0, // mov eax, IA32 CpuDxe MP Entry Point
-#endif
- { 0xff, 0xe0 }, // jmp to eax/rax (CpuDxe MP Entry Point)
-
-};
-
-volatile STARTUP_CODE *StartupCode = NULL;
-
-/**
- The function will check if BSP Execute Disable is enabled.
- DxeIpl may have enabled Execute Disable for BSP,
- APs need to get the status and sync up the settings.
-
- @retval TRUE BSP Execute Disable is enabled.
- @retval FALSE BSP Execute Disable is not enabled.
-
-**/
-BOOLEAN
-IsBspExecuteDisableEnabled (
- VOID
- )
-{
- UINT32 RegEax;
- UINT32 RegEdx;
- UINT64 MsrRegisters;
- BOOLEAN Enabled;
-
- Enabled = FALSE;
- AsmCpuid (0x80000000, &RegEax, NULL, NULL, NULL);
- if (RegEax >= 0x80000001) {
- AsmCpuid (0x80000001, NULL, NULL, NULL, &RegEdx);
- //
- // Cpuid 0x80000001
- // Bit 20: Execute Disable Bit available.
- //
- if ((RegEdx & BIT20) != 0) {
- MsrRegisters = AsmReadMsr64 (0xC0000080);
- //
- // Msr 0xC0000080
- // Bit 11: Execute Disable Bit enable.
- //
- if ((MsrRegisters & BIT11) != 0) {
- Enabled = TRUE;
- }
- }
- }
-
- return Enabled;
-}
-
-/**
- Prepares Startup Code for APs.
- This function prepares Startup Code for APs.
-
- @retval EFI_SUCCESS The APs were started
- @retval EFI_OUT_OF_RESOURCES Cannot allocate memory to start APs
-
-**/
-EFI_STATUS
-PrepareAPStartupCode (
- VOID
- )
-{
- EFI_STATUS Status;
- IA32_DESCRIPTOR Gdtr;
- EFI_PHYSICAL_ADDRESS StartAddress;
-
- StartAddress = BASE_1MB;
- Status = gBS->AllocatePages (
- AllocateMaxAddress,
- EfiACPIMemoryNVS,
- EFI_SIZE_TO_PAGES (sizeof (*StartupCode)),
- &StartAddress
- );
- if (EFI_ERROR (Status)) {
- return Status;
- }
-
- StartupCode = (STARTUP_CODE*)(VOID*)(UINTN) StartAddress;
- CopyMem ((VOID*) StartupCode, &mStartupCodeTemplate, sizeof (*StartupCode));
- StartupCode->RealSegment = (UINT16) (((UINTN) StartAddress) >> 4);
-
- AsmReadGdtr (&Gdtr);
- StartupCode->GdtLimit = Gdtr.Limit;
- StartupCode->GdtBase = (UINT32) Gdtr.Base;
-
- StartupCode->CpuDxeEntryValue = (UINTN) AsmApEntryPoint;
-
- StartupCode->FlatJmpOffset += (UINT32) StartAddress;
-
- if (IsBspExecuteDisableEnabled ()) {
- CopyMem (
- (VOID*) &StartupCode->EnableExecuteDisable,
- &mEnableExecuteDisableCodeTemplate,
- sizeof (ENABLE_EXECUTE_DISABLE_CODE)
- );
- }
-#if defined (MDE_CPU_X64)
- StartupCode->Cr3Value = (UINT32) AsmReadCr3 ();
- StartupCode->LongJmpOffset += (UINT32) StartAddress;
-#else
- StartupCode->EnableExecuteDisable.Cr3Value = (UINT32) AsmReadCr3 ();
-#endif
-
- return EFI_SUCCESS;
-}
-
-/**
- Free the code buffer of startup AP.
-
-**/
-VOID
-FreeApStartupCode (
- VOID
- )
-{
- if (StartupCode != NULL) {
- gBS->FreePages ((EFI_PHYSICAL_ADDRESS)(UINTN)(VOID*) StartupCode,
- EFI_SIZE_TO_PAGES (sizeof (*StartupCode)));
- }
-}
-
-
-/**
- Starts the Application Processors and directs them to jump to the
- specified routine.
-
- The processor jumps to this code in flat mode, but the processor's
- stack is not initialized.
-
- @retval EFI_SUCCESS The APs were started
-
-**/
-EFI_STATUS
-StartApsStackless (
- VOID
- )
-{
- SendInitSipiSipiAllExcludingSelf ((UINT32)(UINTN)(VOID*) StartupCode);
- //
- // Wait 100 milliseconds for APs to arrive at the ApEntryPoint routine
- //
- MicroSecondDelay (100 * 1000);
-
- return EFI_SUCCESS;
-}
-
-/**
- Resets the Application Processor and directs it to jump to the
- specified routine.
-
- The processor jumps to this code in flat mode, but the processor's
- stack is not initialized.
-
- @param ProcessorId the AP of ProcessorId was reset
-**/
-VOID
-ResetApStackless (
- IN UINT32 ProcessorId
- )
-{
- SendInitSipiSipi (ProcessorId,
- (UINT32)(UINTN)(VOID*) StartupCode);
-}
diff --git a/UefiCpuPkg/CpuDxe/CpuDxe.c b/UefiCpuPkg/CpuDxe/CpuDxe.c deleted file mode 100644 index c9df4e146a..0000000000 --- a/UefiCpuPkg/CpuDxe/CpuDxe.c +++ /dev/null @@ -1,905 +0,0 @@ -/** @file
- CPU DXE Module.
-
- Copyright (c) 2008 - 2013, Intel Corporation. All rights reserved.<BR>
- This program and the accompanying materials
- are licensed and made available under the terms and conditions of the BSD License
- which accompanies this distribution. The full text of the license may be found at
- http://opensource.org/licenses/bsd-license.php
-
- THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
- WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
-
-**/
-
-#include "CpuDxe.h"
-#include "CpuMp.h"
-
-//
-// Global Variables
-//
-BOOLEAN InterruptState = FALSE;
-EFI_HANDLE mCpuHandle = NULL;
-BOOLEAN mIsFlushingGCD;
-UINT64 mValidMtrrAddressMask = MTRR_LIB_CACHE_VALID_ADDRESS;
-UINT64 mValidMtrrBitsMask = MTRR_LIB_MSR_VALID_MASK;
-
-FIXED_MTRR mFixedMtrrTable[] = {
- {
- MTRR_LIB_IA32_MTRR_FIX64K_00000,
- 0,
- 0x10000
- },
- {
- MTRR_LIB_IA32_MTRR_FIX16K_80000,
- 0x80000,
- 0x4000
- },
- {
- MTRR_LIB_IA32_MTRR_FIX16K_A0000,
- 0xA0000,
- 0x4000
- },
- {
- MTRR_LIB_IA32_MTRR_FIX4K_C0000,
- 0xC0000,
- 0x1000
- },
- {
- MTRR_LIB_IA32_MTRR_FIX4K_C8000,
- 0xC8000,
- 0x1000
- },
- {
- MTRR_LIB_IA32_MTRR_FIX4K_D0000,
- 0xD0000,
- 0x1000
- },
- {
- MTRR_LIB_IA32_MTRR_FIX4K_D8000,
- 0xD8000,
- 0x1000
- },
- {
- MTRR_LIB_IA32_MTRR_FIX4K_E0000,
- 0xE0000,
- 0x1000
- },
- {
- MTRR_LIB_IA32_MTRR_FIX4K_E8000,
- 0xE8000,
- 0x1000
- },
- {
- MTRR_LIB_IA32_MTRR_FIX4K_F0000,
- 0xF0000,
- 0x1000
- },
- {
- MTRR_LIB_IA32_MTRR_FIX4K_F8000,
- 0xF8000,
- 0x1000
- },
-};
-
-
-EFI_CPU_ARCH_PROTOCOL gCpu = {
- CpuFlushCpuDataCache,
- CpuEnableInterrupt,
- CpuDisableInterrupt,
- CpuGetInterruptState,
- CpuInit,
- CpuRegisterInterruptHandler,
- CpuGetTimerValue,
- CpuSetMemoryAttributes,
- 1, // NumberOfTimers
- 4 // DmaBufferAlignment
-};
-
-//
-// CPU Arch Protocol Functions
-//
-
-/**
- Flush CPU data cache. If the instruction cache is fully coherent
- with all DMA operations then function can just return EFI_SUCCESS.
-
- @param This Protocol instance structure
- @param Start Physical address to start flushing from.
- @param Length Number of bytes to flush. Round up to chipset
- granularity.
- @param FlushType Specifies the type of flush operation to perform.
-
- @retval EFI_SUCCESS If cache was flushed
- @retval EFI_UNSUPPORTED If flush type is not supported.
- @retval EFI_DEVICE_ERROR If requested range could not be flushed.
-
-**/
-EFI_STATUS
-EFIAPI
-CpuFlushCpuDataCache (
- IN EFI_CPU_ARCH_PROTOCOL *This,
- IN EFI_PHYSICAL_ADDRESS Start,
- IN UINT64 Length,
- IN EFI_CPU_FLUSH_TYPE FlushType
- )
-{
- if (FlushType == EfiCpuFlushTypeWriteBackInvalidate) {
- AsmWbinvd ();
- return EFI_SUCCESS;
- } else if (FlushType == EfiCpuFlushTypeInvalidate) {
- AsmInvd ();
- return EFI_SUCCESS;
- } else {
- return EFI_UNSUPPORTED;
- }
-}
-
-
-/**
- Enables CPU interrupts.
-
- @param This Protocol instance structure
-
- @retval EFI_SUCCESS If interrupts were enabled in the CPU
- @retval EFI_DEVICE_ERROR If interrupts could not be enabled on the CPU.
-
-**/
-EFI_STATUS
-EFIAPI
-CpuEnableInterrupt (
- IN EFI_CPU_ARCH_PROTOCOL *This
- )
-{
- EnableInterrupts ();
-
- InterruptState = TRUE;
- return EFI_SUCCESS;
-}
-
-
-/**
- Disables CPU interrupts.
-
- @param This Protocol instance structure
-
- @retval EFI_SUCCESS If interrupts were disabled in the CPU.
- @retval EFI_DEVICE_ERROR If interrupts could not be disabled on the CPU.
-
-**/
-EFI_STATUS
-EFIAPI
-CpuDisableInterrupt (
- IN EFI_CPU_ARCH_PROTOCOL *This
- )
-{
- DisableInterrupts ();
-
- InterruptState = FALSE;
- return EFI_SUCCESS;
-}
-
-
-/**
- Return the state of interrupts.
-
- @param This Protocol instance structure
- @param State Pointer to the CPU's current interrupt state
-
- @retval EFI_SUCCESS If interrupts were disabled in the CPU.
- @retval EFI_INVALID_PARAMETER State is NULL.
-
-**/
-EFI_STATUS
-EFIAPI
-CpuGetInterruptState (
- IN EFI_CPU_ARCH_PROTOCOL *This,
- OUT BOOLEAN *State
- )
-{
- if (State == NULL) {
- return EFI_INVALID_PARAMETER;
- }
-
- *State = InterruptState;
- return EFI_SUCCESS;
-}
-
-
-/**
- Generates an INIT to the CPU.
-
- @param This Protocol instance structure
- @param InitType Type of CPU INIT to perform
-
- @retval EFI_SUCCESS If CPU INIT occurred. This value should never be
- seen.
- @retval EFI_DEVICE_ERROR If CPU INIT failed.
- @retval EFI_UNSUPPORTED Requested type of CPU INIT not supported.
-
-**/
-EFI_STATUS
-EFIAPI
-CpuInit (
- IN EFI_CPU_ARCH_PROTOCOL *This,
- IN EFI_CPU_INIT_TYPE InitType
- )
-{
- return EFI_UNSUPPORTED;
-}
-
-
-/**
- Registers a function to be called from the CPU interrupt handler.
-
- @param This Protocol instance structure
- @param InterruptType Defines which interrupt to hook. IA-32
- valid range is 0x00 through 0xFF
- @param InterruptHandler A pointer to a function of type
- EFI_CPU_INTERRUPT_HANDLER that is called
- when a processor interrupt occurs. A null
- pointer is an error condition.
-
- @retval EFI_SUCCESS If handler installed or uninstalled.
- @retval EFI_ALREADY_STARTED InterruptHandler is not NULL, and a handler
- for InterruptType was previously installed.
- @retval EFI_INVALID_PARAMETER InterruptHandler is NULL, and a handler for
- InterruptType was not previously installed.
- @retval EFI_UNSUPPORTED The interrupt specified by InterruptType
- is not supported.
-
-**/
-EFI_STATUS
-EFIAPI
-CpuRegisterInterruptHandler (
- IN EFI_CPU_ARCH_PROTOCOL *This,
- IN EFI_EXCEPTION_TYPE InterruptType,
- IN EFI_CPU_INTERRUPT_HANDLER InterruptHandler
- )
-{
- return RegisterCpuInterruptHandler (InterruptType, InterruptHandler);
-}
-
-
-/**
- Returns a timer value from one of the CPU's internal timers. There is no
- inherent time interval between ticks but is a function of the CPU frequency.
-
- @param This - Protocol instance structure.
- @param TimerIndex - Specifies which CPU timer is requested.
- @param TimerValue - Pointer to the returned timer value.
- @param TimerPeriod - A pointer to the amount of time that passes
- in femtoseconds (10-15) for each increment
- of TimerValue. If TimerValue does not
- increment at a predictable rate, then 0 is
- returned. The amount of time that has
- passed between two calls to GetTimerValue()
- can be calculated with the formula
- (TimerValue2 - TimerValue1) * TimerPeriod.
- This parameter is optional and may be NULL.
-
- @retval EFI_SUCCESS - If the CPU timer count was returned.
- @retval EFI_UNSUPPORTED - If the CPU does not have any readable timers.
- @retval EFI_DEVICE_ERROR - If an error occurred while reading the timer.
- @retval EFI_INVALID_PARAMETER - TimerIndex is not valid or TimerValue is NULL.
-
-**/
-EFI_STATUS
-EFIAPI
-CpuGetTimerValue (
- IN EFI_CPU_ARCH_PROTOCOL *This,
- IN UINT32 TimerIndex,
- OUT UINT64 *TimerValue,
- OUT UINT64 *TimerPeriod OPTIONAL
- )
-{
- if (TimerValue == NULL) {
- return EFI_INVALID_PARAMETER;
- }
-
- if (TimerIndex != 0) {
- return EFI_INVALID_PARAMETER;
- }
-
- *TimerValue = AsmReadTsc ();
-
- if (TimerPeriod != NULL) {
- //
- // BugBug: Hard coded. Don't know how to do this generically
- //
- *TimerPeriod = 1000000000;
- }
-
- return EFI_SUCCESS;
-}
-
-
-/**
- Implementation of SetMemoryAttributes() service of CPU Architecture Protocol.
-
- This function modifies the attributes for the memory region specified by BaseAddress and
- Length from their current attributes to the attributes specified by Attributes.
-
- @param This The EFI_CPU_ARCH_PROTOCOL instance.
- @param BaseAddress The physical address that is the start address of a memory region.
- @param Length The size in bytes of the memory region.
- @param Attributes The bit mask of attributes to set for the memory region.
-
- @retval EFI_SUCCESS The attributes were set for the memory region.
- @retval EFI_ACCESS_DENIED The attributes for the memory resource range specified by
- BaseAddress and Length cannot be modified.
- @retval EFI_INVALID_PARAMETER Length is zero.
- Attributes specified an illegal combination of attributes that
- cannot be set together.
- @retval EFI_OUT_OF_RESOURCES There are not enough system resources to modify the attributes of
- the memory resource range.
- @retval EFI_UNSUPPORTED The processor does not support one or more bytes of the memory
- resource range specified by BaseAddress and Length.
- The bit mask of attributes is not support for the memory resource
- range specified by BaseAddress and Length.
-
-**/
-EFI_STATUS
-EFIAPI
-CpuSetMemoryAttributes (
- IN EFI_CPU_ARCH_PROTOCOL *This,
- IN EFI_PHYSICAL_ADDRESS BaseAddress,
- IN UINT64 Length,
- IN UINT64 Attributes
- )
-{
- RETURN_STATUS Status;
- MTRR_MEMORY_CACHE_TYPE CacheType;
-
- if (!IsMtrrSupported ()) {
- return EFI_UNSUPPORTED;
- }
-
- //
- // If this function is called because GCD SetMemorySpaceAttributes () is called
- // by RefreshGcdMemoryAttributes (), then we are just synchronzing GCD memory
- // map with MTRR values. So there is no need to modify MTRRs, just return immediately
- // to avoid unnecessary computing.
- //
- if (mIsFlushingGCD) {
- DEBUG((EFI_D_INFO, " Flushing GCD\n"));
- return EFI_SUCCESS;
- }
-
- switch (Attributes) {
- case EFI_MEMORY_UC:
- CacheType = CacheUncacheable;
- break;
-
- case EFI_MEMORY_WC:
- CacheType = CacheWriteCombining;
- break;
-
- case EFI_MEMORY_WT:
- CacheType = CacheWriteThrough;
- break;
-
- case EFI_MEMORY_WP:
- CacheType = CacheWriteProtected;
- break;
-
- case EFI_MEMORY_WB:
- CacheType = CacheWriteBack;
- break;
-
- case EFI_MEMORY_UCE:
- case EFI_MEMORY_RP:
- case EFI_MEMORY_XP:
- case EFI_MEMORY_RUNTIME:
- return EFI_UNSUPPORTED;
-
- default:
- return EFI_INVALID_PARAMETER;
- }
- //
- // call MTRR libary function
- //
- Status = MtrrSetMemoryAttribute (
- BaseAddress,
- Length,
- CacheType
- );
-
- return (EFI_STATUS) Status;
-}
-
-/**
- Initializes the valid bits mask and valid address mask for MTRRs.
-
- This function initializes the valid bits mask and valid address mask for MTRRs.
-
-**/
-VOID
-InitializeMtrrMask (
- VOID
- )
-{
- UINT32 RegEax;
- UINT8 PhysicalAddressBits;
-
- AsmCpuid (0x80000000, &RegEax, NULL, NULL, NULL);
-
- if (RegEax >= 0x80000008) {
- AsmCpuid (0x80000008, &RegEax, NULL, NULL, NULL);
-
- PhysicalAddressBits = (UINT8) RegEax;
-
- mValidMtrrBitsMask = LShiftU64 (1, PhysicalAddressBits) - 1;
- mValidMtrrAddressMask = mValidMtrrBitsMask & 0xfffffffffffff000ULL;
- } else {
- mValidMtrrBitsMask = MTRR_LIB_MSR_VALID_MASK;
- mValidMtrrAddressMask = MTRR_LIB_CACHE_VALID_ADDRESS;
- }
-}
-
-/**
- Gets GCD Mem Space type from MTRR Type.
-
- This function gets GCD Mem Space type from MTRR Type.
-
- @param MtrrAttributes MTRR memory type
-
- @return GCD Mem Space type
-
-**/
-UINT64
-GetMemorySpaceAttributeFromMtrrType (
- IN UINT8 MtrrAttributes
- )
-{
- switch (MtrrAttributes) {
- case MTRR_CACHE_UNCACHEABLE:
- return EFI_MEMORY_UC;
- case MTRR_CACHE_WRITE_COMBINING:
- return EFI_MEMORY_WC;
- case MTRR_CACHE_WRITE_THROUGH:
- return EFI_MEMORY_WT;
- case MTRR_CACHE_WRITE_PROTECTED:
- return EFI_MEMORY_WP;
- case MTRR_CACHE_WRITE_BACK:
- return EFI_MEMORY_WB;
- default:
- return 0;
- }
-}
-
-/**
- Searches memory descriptors covered by given memory range.
-
- This function searches into the Gcd Memory Space for descriptors
- (from StartIndex to EndIndex) that contains the memory range
- specified by BaseAddress and Length.
-
- @param MemorySpaceMap Gcd Memory Space Map as array.
- @param NumberOfDescriptors Number of descriptors in map.
- @param BaseAddress BaseAddress for the requested range.
- @param Length Length for the requested range.
- @param StartIndex Start index into the Gcd Memory Space Map.
- @param EndIndex End index into the Gcd Memory Space Map.
-
- @retval EFI_SUCCESS Search successfully.
- @retval EFI_NOT_FOUND The requested descriptors does not exist.
-
-**/
-EFI_STATUS
-SearchGcdMemorySpaces (
- IN EFI_GCD_MEMORY_SPACE_DESCRIPTOR *MemorySpaceMap,
- IN UINTN NumberOfDescriptors,
- IN EFI_PHYSICAL_ADDRESS BaseAddress,
- IN UINT64 Length,
- OUT UINTN *StartIndex,
- OUT UINTN *EndIndex
- )
-{
- UINTN Index;
-
- *StartIndex = 0;
- *EndIndex = 0;
- for (Index = 0; Index < NumberOfDescriptors; Index++) {
- if (BaseAddress >= MemorySpaceMap[Index].BaseAddress &&
- BaseAddress < MemorySpaceMap[Index].BaseAddress + MemorySpaceMap[Index].Length) {
- *StartIndex = Index;
- }
- if (BaseAddress + Length - 1 >= MemorySpaceMap[Index].BaseAddress &&
- BaseAddress + Length - 1 < MemorySpaceMap[Index].BaseAddress + MemorySpaceMap[Index].Length) {
- *EndIndex = Index;
- return EFI_SUCCESS;
- }
- }
- return EFI_NOT_FOUND;
-}
-
-/**
- Sets the attributes for a specified range in Gcd Memory Space Map.
-
- This function sets the attributes for a specified range in
- Gcd Memory Space Map.
-
- @param MemorySpaceMap Gcd Memory Space Map as array
- @param NumberOfDescriptors Number of descriptors in map
- @param BaseAddress BaseAddress for the range
- @param Length Length for the range
- @param Attributes Attributes to set
-
- @retval EFI_SUCCESS Memory attributes set successfully
- @retval EFI_NOT_FOUND The specified range does not exist in Gcd Memory Space
-
-**/
-EFI_STATUS
-SetGcdMemorySpaceAttributes (
- IN EFI_GCD_MEMORY_SPACE_DESCRIPTOR *MemorySpaceMap,
- IN UINTN NumberOfDescriptors,
- IN EFI_PHYSICAL_ADDRESS BaseAddress,
- IN UINT64 Length,
- IN UINT64 Attributes
- )
-{
- EFI_STATUS Status;
- UINTN Index;
- UINTN StartIndex;
- UINTN EndIndex;
- EFI_PHYSICAL_ADDRESS RegionStart;
- UINT64 RegionLength;
-
- //
- // Get all memory descriptors covered by the memory range
- //
- Status = SearchGcdMemorySpaces (
- MemorySpaceMap,
- NumberOfDescriptors,
- BaseAddress,
- Length,
- &StartIndex,
- &EndIndex
- );
- if (EFI_ERROR (Status)) {
- return Status;
- }
-
- //
- // Go through all related descriptors and set attributes accordingly
- //
- for (Index = StartIndex; Index <= EndIndex; Index++) {
- if (MemorySpaceMap[Index].GcdMemoryType == EfiGcdMemoryTypeNonExistent) {
- continue;
- }
- //
- // Calculate the start and end address of the overlapping range
- //
- if (BaseAddress >= MemorySpaceMap[Index].BaseAddress) {
- RegionStart = BaseAddress;
- } else {
- RegionStart = MemorySpaceMap[Index].BaseAddress;
- }
- if (BaseAddress + Length - 1 < MemorySpaceMap[Index].BaseAddress + MemorySpaceMap[Index].Length) {
- RegionLength = BaseAddress + Length - RegionStart;
- } else {
- RegionLength = MemorySpaceMap[Index].BaseAddress + MemorySpaceMap[Index].Length - RegionStart;
- }
- //
- // Set memory attributes according to MTRR attribute and the original attribute of descriptor
- //
- gDS->SetMemorySpaceAttributes (
- RegionStart,
- RegionLength,
- (MemorySpaceMap[Index].Attributes & ~EFI_MEMORY_CACHETYPE_MASK) | (MemorySpaceMap[Index].Capabilities & Attributes)
- );
- }
-
- return EFI_SUCCESS;
-}
-
-
-/**
- Refreshes the GCD Memory Space attributes according to MTRRs.
-
- This function refreshes the GCD Memory Space attributes according to MTRRs.
-
-**/
-VOID
-RefreshGcdMemoryAttributes (
- VOID
- )
-{
- EFI_STATUS Status;
- UINTN Index;
- UINTN SubIndex;
- UINT64 RegValue;
- EFI_PHYSICAL_ADDRESS BaseAddress;
- UINT64 Length;
- UINT64 Attributes;
- UINT64 CurrentAttributes;
- UINT8 MtrrType;
- UINTN NumberOfDescriptors;
- EFI_GCD_MEMORY_SPACE_DESCRIPTOR *MemorySpaceMap;
- UINT64 DefaultAttributes;
- VARIABLE_MTRR VariableMtrr[MTRR_NUMBER_OF_VARIABLE_MTRR];
- MTRR_FIXED_SETTINGS MtrrFixedSettings;
- UINT32 FirmwareVariableMtrrCount;
- UINT8 DefaultMemoryType;
-
- if (!IsMtrrSupported ()) {
- return;
- }
-
- FirmwareVariableMtrrCount = GetFirmwareVariableMtrrCount ();
- ASSERT (FirmwareVariableMtrrCount <= MTRR_NUMBER_OF_VARIABLE_MTRR);
-
- mIsFlushingGCD = TRUE;
- MemorySpaceMap = NULL;
-
- //
- // Initialize the valid bits mask and valid address mask for MTRRs
- //
- InitializeMtrrMask ();
-
- //
- // Get the memory attribute of variable MTRRs
- //
- MtrrGetMemoryAttributeInVariableMtrr (
- mValidMtrrBitsMask,
- mValidMtrrAddressMask,
- VariableMtrr
- );
-
- //
- // Get the memory space map from GCD
- //
- Status = gDS->GetMemorySpaceMap (
- &NumberOfDescriptors,
- &MemorySpaceMap
- );
- ASSERT_EFI_ERROR (Status);
-
- DefaultMemoryType = (UINT8) MtrrGetDefaultMemoryType ();
- DefaultAttributes = GetMemorySpaceAttributeFromMtrrType (DefaultMemoryType);
-
- //
- // Set default attributes to all spaces.
- //
- for (Index = 0; Index < NumberOfDescriptors; Index++) {
- if (MemorySpaceMap[Index].GcdMemoryType == EfiGcdMemoryTypeNonExistent) {
- continue;
- }
- gDS->SetMemorySpaceAttributes (
- MemorySpaceMap[Index].BaseAddress,
- MemorySpaceMap[Index].Length,
- (MemorySpaceMap[Index].Attributes & ~EFI_MEMORY_CACHETYPE_MASK) |
- (MemorySpaceMap[Index].Capabilities & DefaultAttributes)
- );
- }
-
- //
- // Go for variable MTRRs with WB attribute
- //
- for (Index = 0; Index < FirmwareVariableMtrrCount; Index++) {
- if (VariableMtrr[Index].Valid &&
- VariableMtrr[Index].Type == MTRR_CACHE_WRITE_BACK) {
- SetGcdMemorySpaceAttributes (
- MemorySpaceMap,
- NumberOfDescriptors,
- VariableMtrr[Index].BaseAddress,
- VariableMtrr[Index].Length,
- EFI_MEMORY_WB
- );
- }
- }
-
- //
- // Go for variable MTRRs with the attribute except for WB and UC attributes
- //
- for (Index = 0; Index < FirmwareVariableMtrrCount; Index++) {
- if (VariableMtrr[Index].Valid &&
- VariableMtrr[Index].Type != MTRR_CACHE_WRITE_BACK &&
- VariableMtrr[Index].Type != MTRR_CACHE_UNCACHEABLE) {
- Attributes = GetMemorySpaceAttributeFromMtrrType ((UINT8) VariableMtrr[Index].Type);
- SetGcdMemorySpaceAttributes (
- MemorySpaceMap,
- NumberOfDescriptors,
- VariableMtrr[Index].BaseAddress,
- VariableMtrr[Index].Length,
- Attributes
- );
- }
- }
-
- //
- // Go for variable MTRRs with UC attribute
- //
- for (Index = 0; Index < FirmwareVariableMtrrCount; Index++) {
- if (VariableMtrr[Index].Valid &&
- VariableMtrr[Index].Type == MTRR_CACHE_UNCACHEABLE) {
- SetGcdMemorySpaceAttributes (
- MemorySpaceMap,
- NumberOfDescriptors,
- VariableMtrr[Index].BaseAddress,
- VariableMtrr[Index].Length,
- EFI_MEMORY_UC
- );
- }
- }
-
- //
- // Go for fixed MTRRs
- //
- Attributes = 0;
- BaseAddress = 0;
- Length = 0;
- MtrrGetFixedMtrr (&MtrrFixedSettings);
- for (Index = 0; Index < MTRR_NUMBER_OF_FIXED_MTRR; Index++) {
- RegValue = MtrrFixedSettings.Mtrr[Index];
- //
- // Check for continuous fixed MTRR sections
- //
- for (SubIndex = 0; SubIndex < 8; SubIndex++) {
- MtrrType = (UINT8) RShiftU64 (RegValue, SubIndex * 8);
- CurrentAttributes = GetMemorySpaceAttributeFromMtrrType (MtrrType);
- if (Length == 0) {
- //
- // A new MTRR attribute begins
- //
- Attributes = CurrentAttributes;
- } else {
- //
- // If fixed MTRR attribute changed, then set memory attribute for previous atrribute
- //
- if (CurrentAttributes != Attributes) {
- SetGcdMemorySpaceAttributes (
- MemorySpaceMap,
- NumberOfDescriptors,
- BaseAddress,
- Length,
- Attributes
- );
- BaseAddress = mFixedMtrrTable[Index].BaseAddress + mFixedMtrrTable[Index].Length * SubIndex;
- Length = 0;
- Attributes = CurrentAttributes;
- }
- }
- Length += mFixedMtrrTable[Index].Length;
- }
- }
- //
- // Handle the last fixed MTRR region
- //
- SetGcdMemorySpaceAttributes (
- MemorySpaceMap,
- NumberOfDescriptors,
- BaseAddress,
- Length,
- Attributes
- );
-
- //
- // Free memory space map allocated by GCD service GetMemorySpaceMap ()
- //
- if (MemorySpaceMap != NULL) {
- FreePool (MemorySpaceMap);
- }
-
- mIsFlushingGCD = FALSE;
-}
-
-/**
- Initialize Interrupt Descriptor Table for interrupt handling.
-
-**/
-VOID
-InitInterruptDescriptorTable (
- VOID
- )
-{
- EFI_STATUS Status;
- EFI_VECTOR_HANDOFF_INFO *VectorInfoList;
- EFI_VECTOR_HANDOFF_INFO *VectorInfo;
-
- VectorInfo = NULL;
- Status = EfiGetSystemConfigurationTable (&gEfiVectorHandoffTableGuid, (VOID **) &VectorInfoList);
- if (Status == EFI_SUCCESS && VectorInfoList != NULL) {
- VectorInfo = VectorInfoList;
- }
- Status = InitializeCpuInterruptHandlers (VectorInfo);
- ASSERT_EFI_ERROR (Status);
-}
-
-
-/**
- Callback function for idle events.
-
- @param Event Event whose notification function is being invoked.
- @param Context The pointer to the notification function's context,
- which is implementation-dependent.
-
-**/
-VOID
-EFIAPI
-IdleLoopEventCallback (
- IN EFI_EVENT Event,
- IN VOID *Context
- )
-{
- CpuSleep ();
-}
-
-
-/**
- Initialize the state information for the CPU Architectural Protocol.
-
- @param ImageHandle Image handle this driver.
- @param SystemTable Pointer to the System Table.
-
- @retval EFI_SUCCESS Thread can be successfully created
- @retval EFI_OUT_OF_RESOURCES Cannot allocate protocol data structure
- @retval EFI_DEVICE_ERROR Cannot create the thread
-
-**/
-EFI_STATUS
-EFIAPI
-InitializeCpu (
- IN EFI_HANDLE ImageHandle,
- IN EFI_SYSTEM_TABLE *SystemTable
- )
-{
- EFI_STATUS Status;
- EFI_EVENT IdleLoopEvent;
-
- InitializeFloatingPointUnits ();
-
- //
- // Make sure interrupts are disabled
- //
- DisableInterrupts ();
-
- //
- // Init GDT for DXE
- //
- InitGlobalDescriptorTable ();
-
- //
- // Setup IDT pointer, IDT and interrupt entry points
- //
- InitInterruptDescriptorTable ();
-
- //
- // Enable the local APIC for Virtual Wire Mode.
- //
- ProgramVirtualWireMode ();
-
- //
- // Install CPU Architectural Protocol
- //
- Status = gBS->InstallMultipleProtocolInterfaces (
- &mCpuHandle,
- &gEfiCpuArchProtocolGuid, &gCpu,
- NULL
- );
- ASSERT_EFI_ERROR (Status);
-
- //
- // Refresh GCD memory space map according to MTRR value.
- //
- RefreshGcdMemoryAttributes ();
-
- //
- // Setup a callback for idle events
- //
- Status = gBS->CreateEventEx (
- EVT_NOTIFY_SIGNAL,
- TPL_NOTIFY,
- IdleLoopEventCallback,
- NULL,
- &gIdleLoopEventGuid,
- &IdleLoopEvent
- );
- ASSERT_EFI_ERROR (Status);
-
- InitializeMpSupport ();
-
- return Status;
-}
-
diff --git a/UefiCpuPkg/CpuDxe/CpuDxe.h b/UefiCpuPkg/CpuDxe/CpuDxe.h deleted file mode 100644 index 2aef626cd5..0000000000 --- a/UefiCpuPkg/CpuDxe/CpuDxe.h +++ /dev/null @@ -1,256 +0,0 @@ -/** @file
- CPU DXE Module.
-
- Copyright (c) 2008 - 2013, Intel Corporation. All rights reserved.<BR>
- This program and the accompanying materials
- are licensed and made available under the terms and conditions of the BSD License
- which accompanies this distribution. The full text of the license may be found at
- http://opensource.org/licenses/bsd-license.php
-
- THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
- WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
-
-**/
-
-#ifndef _CPU_DXE_H_
-#define _CPU_DXE_H_
-
-#include <PiDxe.h>
-
-#include <Protocol/Cpu.h>
-
-#include <Library/UefiDriverEntryPoint.h>
-#include <Library/UefiBootServicesTableLib.h>
-#include <Library/DxeServicesTableLib.h>
-#include <Library/BaseLib.h>
-#include <Library/CpuLib.h>
-#include <Library/BaseMemoryLib.h>
-#include <Library/MemoryAllocationLib.h>
-#include <Library/DebugLib.h>
-#include <Library/MtrrLib.h>
-#include <Library/LocalApicLib.h>
-#include <Library/UefiCpuLib.h>
-#include <Library/UefiLib.h>
-#include <Library/CpuExceptionHandlerLib.h>
-#include <Library/TimerLib.h>
-#include <Guid/IdleLoopEvent.h>
-#include <Guid/VectorHandoffTable.h>
-
-#define EFI_MEMORY_CACHETYPE_MASK (EFI_MEMORY_UC | \
- EFI_MEMORY_WC | \
- EFI_MEMORY_WT | \
- EFI_MEMORY_WB | \
- EFI_MEMORY_UCE \
- )
-
-
-/**
- Flush CPU data cache. If the instruction cache is fully coherent
- with all DMA operations then function can just return EFI_SUCCESS.
-
- @param This Protocol instance structure
- @param Start Physical address to start flushing from.
- @param Length Number of bytes to flush. Round up to chipset
- granularity.
- @param FlushType Specifies the type of flush operation to perform.
-
- @retval EFI_SUCCESS If cache was flushed
- @retval EFI_UNSUPPORTED If flush type is not supported.
- @retval EFI_DEVICE_ERROR If requested range could not be flushed.
-
-**/
-EFI_STATUS
-EFIAPI
-CpuFlushCpuDataCache (
- IN EFI_CPU_ARCH_PROTOCOL *This,
- IN EFI_PHYSICAL_ADDRESS Start,
- IN UINT64 Length,
- IN EFI_CPU_FLUSH_TYPE FlushType
- );
-
-/**
- Enables CPU interrupts.
-
- @param This Protocol instance structure
-
- @retval EFI_SUCCESS If interrupts were enabled in the CPU
- @retval EFI_DEVICE_ERROR If interrupts could not be enabled on the CPU.
-
-**/
-EFI_STATUS
-EFIAPI
-CpuEnableInterrupt (
- IN EFI_CPU_ARCH_PROTOCOL *This
- );
-
-/**
- Disables CPU interrupts.
-
- @param This Protocol instance structure
-
- @retval EFI_SUCCESS If interrupts were disabled in the CPU.
- @retval EFI_DEVICE_ERROR If interrupts could not be disabled on the CPU.
-
-**/
-EFI_STATUS
-EFIAPI
-CpuDisableInterrupt (
- IN EFI_CPU_ARCH_PROTOCOL *This
- );
-
-/**
- Return the state of interrupts.
-
- @param This Protocol instance structure
- @param State Pointer to the CPU's current interrupt state
-
- @retval EFI_SUCCESS If interrupts were disabled in the CPU.
- @retval EFI_INVALID_PARAMETER State is NULL.
-
-**/
-EFI_STATUS
-EFIAPI
-CpuGetInterruptState (
- IN EFI_CPU_ARCH_PROTOCOL *This,
- OUT BOOLEAN *State
- );
-
-/**
- Generates an INIT to the CPU.
-
- @param This Protocol instance structure
- @param InitType Type of CPU INIT to perform
-
- @retval EFI_SUCCESS If CPU INIT occurred. This value should never be
- seen.
- @retval EFI_DEVICE_ERROR If CPU INIT failed.
- @retval EFI_UNSUPPORTED Requested type of CPU INIT not supported.
-
-**/
-EFI_STATUS
-EFIAPI
-CpuInit (
- IN EFI_CPU_ARCH_PROTOCOL *This,
- IN EFI_CPU_INIT_TYPE InitType
- );
-
-/**
- Registers a function to be called from the CPU interrupt handler.
-
- @param This Protocol instance structure
- @param InterruptType Defines which interrupt to hook. IA-32
- valid range is 0x00 through 0xFF
- @param InterruptHandler A pointer to a function of type
- EFI_CPU_INTERRUPT_HANDLER that is called
- when a processor interrupt occurs. A null
- pointer is an error condition.
-
- @retval EFI_SUCCESS If handler installed or uninstalled.
- @retval EFI_ALREADY_STARTED InterruptHandler is not NULL, and a handler
- for InterruptType was previously installed.
- @retval EFI_INVALID_PARAMETER InterruptHandler is NULL, and a handler for
- InterruptType was not previously installed.
- @retval EFI_UNSUPPORTED The interrupt specified by InterruptType
- is not supported.
-
-**/
-EFI_STATUS
-EFIAPI
-CpuRegisterInterruptHandler (
- IN EFI_CPU_ARCH_PROTOCOL *This,
- IN EFI_EXCEPTION_TYPE InterruptType,
- IN EFI_CPU_INTERRUPT_HANDLER InterruptHandler
- );
-
-/**
- Returns a timer value from one of the CPU's internal timers. There is no
- inherent time interval between ticks but is a function of the CPU frequency.
-
- @param This - Protocol instance structure.
- @param TimerIndex - Specifies which CPU timer is requested.
- @param TimerValue - Pointer to the returned timer value.
- @param TimerPeriod - A pointer to the amount of time that passes
- in femtoseconds (10-15) for each increment
- of TimerValue. If TimerValue does not
- increment at a predictable rate, then 0 is
- returned. The amount of time that has
- passed between two calls to GetTimerValue()
- can be calculated with the formula
- (TimerValue2 - TimerValue1) * TimerPeriod.
- This parameter is optional and may be NULL.
-
- @retval EFI_SUCCESS - If the CPU timer count was returned.
- @retval EFI_UNSUPPORTED - If the CPU does not have any readable timers.
- @retval EFI_DEVICE_ERROR - If an error occurred while reading the timer.
- @retval EFI_INVALID_PARAMETER - TimerIndex is not valid or TimerValue is NULL.
-
-**/
-EFI_STATUS
-EFIAPI
-CpuGetTimerValue (
- IN EFI_CPU_ARCH_PROTOCOL *This,
- IN UINT32 TimerIndex,
- OUT UINT64 *TimerValue,
- OUT UINT64 *TimerPeriod OPTIONAL
- );
-
-/**
- Set memory cacheability attributes for given range of memeory.
-
- @param This Protocol instance structure
- @param BaseAddress Specifies the start address of the
- memory range
- @param Length Specifies the length of the memory range
- @param Attributes The memory cacheability for the memory range
-
- @retval EFI_SUCCESS If the cacheability of that memory range is
- set successfully
- @retval EFI_UNSUPPORTED If the desired operation cannot be done
- @retval EFI_INVALID_PARAMETER The input parameter is not correct,
- such as Length = 0
-
-**/
-EFI_STATUS
-EFIAPI
-CpuSetMemoryAttributes (
- IN EFI_CPU_ARCH_PROTOCOL *This,
- IN EFI_PHYSICAL_ADDRESS BaseAddress,
- IN UINT64 Length,
- IN UINT64 Attributes
- );
-
-/**
- Initialize Global Descriptor Table.
-
-**/
-VOID
-InitGlobalDescriptorTable (
- VOID
- );
-
-/**
- Sets the code selector (CS).
-
- @param Selector Value of code selector.
-
-**/
-VOID
-EFIAPI
-SetCodeSelector (
- UINT16 Selector
- );
-
-/**
- Sets the data selector (DS).
-
- @param Selector Value of data selector.
-
-**/
-VOID
-EFIAPI
-SetDataSelectors (
- UINT16 Selector
- );
-
-#endif
-
diff --git a/UefiCpuPkg/CpuDxe/CpuDxe.inf b/UefiCpuPkg/CpuDxe/CpuDxe.inf deleted file mode 100644 index a251922226..0000000000 --- a/UefiCpuPkg/CpuDxe/CpuDxe.inf +++ /dev/null @@ -1,94 +0,0 @@ -## @file
-# Simple CPU driver installs CPU Architecture Protocol.
-#
-# Copyright (c) 2008 - 2015, Intel Corporation. All rights reserved.<BR>
-# This program and the accompanying materials
-# are licensed and made available under the terms and conditions of the BSD License
-# which accompanies this distribution. The full text of the license may be found at
-# http://opensource.org/licenses/bsd-license.php
-#
-# THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
-# WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
-#
-##
-
-[Defines]
- INF_VERSION = 0x00010005
- BASE_NAME = CpuDxe
- MODULE_UNI_FILE = CpuDxe.uni
- FILE_GUID = 1A1E4886-9517-440e-9FDE-3BE44CEE2136
- MODULE_TYPE = DXE_DRIVER
- VERSION_STRING = 1.0
-
- ENTRY_POINT = InitializeCpu
-
-[Packages]
- MdePkg/MdePkg.dec
- MdeModulePkg/MdeModulePkg.dec
- UefiCpuPkg/UefiCpuPkg.dec
-
-[LibraryClasses]
- BaseLib
- BaseMemoryLib
- CpuLib
- DebugLib
- DxeServicesTableLib
- MemoryAllocationLib
- MtrrLib
- UefiBootServicesTableLib
- UefiDriverEntryPoint
- LocalApicLib
- UefiCpuLib
- UefiLib
- CpuExceptionHandlerLib
- TimerLib
- SynchronizationLib
- HobLib
- ReportStatusCodeLib
-
-[Sources]
- ApStartup.c
- CpuDxe.c
- CpuDxe.h
- CpuGdt.c
- CpuGdt.h
- CpuMp.c
- CpuMp.h
-
-[Sources.IA32]
- Ia32/CpuAsm.asm | MSFT
- Ia32/CpuAsm.asm | INTEL
- Ia32/CpuAsm.S | GCC
- Ia32/MpAsm.asm | MSFT
- Ia32/MpAsm.asm | INTEL
- Ia32/MpAsm.nasm | GCC
-
-[Sources.X64]
- X64/CpuAsm.asm | MSFT
- X64/CpuAsm.asm | INTEL
- X64/CpuAsm.S | GCC
- X64/MpAsm.asm | MSFT
- X64/MpAsm.asm | INTEL
- X64/MpAsm.nasm | GCC
-
-[Protocols]
- gEfiCpuArchProtocolGuid ## PRODUCES
- gEfiMpServiceProtocolGuid ## SOMETIMES_PRODUCES
-
-[Guids]
- gIdleLoopEventGuid ## CONSUMES ## Event
- gEfiVectorHandoffTableGuid ## SOMETIMES_CONSUMES ## SystemTable
-
-[Ppis]
- gEfiSecPlatformInformation2PpiGuid ## UNDEFINED # HOB
- gEfiSecPlatformInformationPpiGuid ## UNDEFINED # HOB
-
-[Pcd]
- gUefiCpuPkgTokenSpaceGuid.PcdCpuMaxLogicalProcessorNumber ## CONSUMES
- gUefiCpuPkgTokenSpaceGuid.PcdCpuApStackSize ## CONSUMES
-
-[Depex]
- TRUE
-
-[UserExtensions.TianoCore."ExtraFiles"]
- CpuDxeExtra.uni
diff --git a/UefiCpuPkg/CpuDxe/CpuDxe.uni b/UefiCpuPkg/CpuDxe/CpuDxe.uni Binary files differdeleted file mode 100644 index 715766dd36..0000000000 --- a/UefiCpuPkg/CpuDxe/CpuDxe.uni +++ /dev/null diff --git a/UefiCpuPkg/CpuDxe/CpuDxeExtra.uni b/UefiCpuPkg/CpuDxe/CpuDxeExtra.uni Binary files differdeleted file mode 100644 index 0ba595eeb8..0000000000 --- a/UefiCpuPkg/CpuDxe/CpuDxeExtra.uni +++ /dev/null diff --git a/UefiCpuPkg/CpuDxe/CpuGdt.c b/UefiCpuPkg/CpuDxe/CpuGdt.c deleted file mode 100644 index 35a87a6e45..0000000000 --- a/UefiCpuPkg/CpuDxe/CpuGdt.c +++ /dev/null @@ -1,150 +0,0 @@ -/** @file
- C based implemention of IA32 interrupt handling only
- requiring a minimal assembly interrupt entry point.
-
- Copyright (c) 2006 - 2010, Intel Corporation. All rights reserved.<BR>
- This program and the accompanying materials
- are licensed and made available under the terms and conditions of the BSD License
- which accompanies this distribution. The full text of the license may be found at
- http://opensource.org/licenses/bsd-license.php
-
- THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
- WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
-
-**/
-
-#include "CpuDxe.h"
-#include "CpuGdt.h"
-
-//
-// Global descriptor table (GDT) Template
-//
-STATIC GDT_ENTRIES GdtTemplate = {
- //
- // NULL_SEL
- //
- {
- 0x0, // limit 15:0
- 0x0, // base 15:0
- 0x0, // base 23:16
- 0x0, // type
- 0x0, // limit 19:16, flags
- 0x0, // base 31:24
- },
- //
- // LINEAR_SEL
- //
- {
- 0x0FFFF, // limit 0xFFFFF
- 0x0, // base 0
- 0x0,
- 0x092, // present, ring 0, data, expand-up, writable
- 0x0CF, // page-granular, 32-bit
- 0x0,
- },
- //
- // LINEAR_CODE_SEL
- //
- {
- 0x0FFFF, // limit 0xFFFFF
- 0x0, // base 0
- 0x0,
- 0x09A, // present, ring 0, data, expand-up, writable
- 0x0CF, // page-granular, 32-bit
- 0x0,
- },
- //
- // SYS_DATA_SEL
- //
- {
- 0x0FFFF, // limit 0xFFFFF
- 0x0, // base 0
- 0x0,
- 0x092, // present, ring 0, data, expand-up, writable
- 0x0CF, // page-granular, 32-bit
- 0x0,
- },
- //
- // SYS_CODE_SEL
- //
- {
- 0x0FFFF, // limit 0xFFFFF
- 0x0, // base 0
- 0x0,
- 0x09A, // present, ring 0, data, expand-up, writable
- 0x0CF, // page-granular, 32-bit
- 0x0,
- },
- //
- // LINEAR_CODE64_SEL
- //
- {
- 0x0FFFF, // limit 0xFFFFF
- 0x0, // base 0
- 0x0,
- 0x09B, // present, ring 0, code, expand-up, writable
- 0x0AF, // LimitHigh (CS.L=1, CS.D=0)
- 0x0, // base (high)
- },
- //
- // SPARE4_SEL
- //
- {
- 0x0, // limit 0
- 0x0, // base 0
- 0x0,
- 0x0, // present, ring 0, data, expand-up, writable
- 0x0, // page-granular, 32-bit
- 0x0,
- },
- //
- // SPARE5_SEL
- //
- {
- 0x0, // limit 0
- 0x0, // base 0
- 0x0,
- 0x0, // present, ring 0, data, expand-up, writable
- 0x0, // page-granular, 32-bit
- 0x0,
- },
-};
-
-/**
- Initialize Global Descriptor Table.
-
-**/
-VOID
-InitGlobalDescriptorTable (
- VOID
- )
-{
- GDT_ENTRIES *gdt;
- IA32_DESCRIPTOR gdtPtr;
-
- //
- // Allocate Runtime Data for the GDT
- //
- gdt = AllocateRuntimePool (sizeof (GdtTemplate) + 8);
- ASSERT (gdt != NULL);
- gdt = ALIGN_POINTER (gdt, 8);
-
- //
- // Initialize all GDT entries
- //
- CopyMem (gdt, &GdtTemplate, sizeof (GdtTemplate));
-
- //
- // Write GDT register
- //
- gdtPtr.Base = (UINT32)(UINTN)(VOID*) gdt;
- gdtPtr.Limit = (UINT16) (sizeof (GdtTemplate) - 1);
- AsmWriteGdtr (&gdtPtr);
-
- //
- // Update selector (segment) registers base on new GDT
- //
- SetCodeSelector ((UINT16)CPU_CODE_SEL);
- SetDataSelectors ((UINT16)CPU_DATA_SEL);
-}
-
diff --git a/UefiCpuPkg/CpuDxe/CpuGdt.h b/UefiCpuPkg/CpuDxe/CpuGdt.h deleted file mode 100644 index 7ecec5d5d9..0000000000 --- a/UefiCpuPkg/CpuDxe/CpuGdt.h +++ /dev/null @@ -1,72 +0,0 @@ -/** @file
- C based implemention of IA32 interrupt handling only
- requiring a minimal assembly interrupt entry point.
-
- Copyright (c) 2006 - 2010, Intel Corporation. All rights reserved.<BR>
- This program and the accompanying materials
- are licensed and made available under the terms and conditions of the BSD License
- which accompanies this distribution. The full text of the license may be found at
- http://opensource.org/licenses/bsd-license.php
-
- THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
- WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
-
-**/
-
-#ifndef _CPU_GDT_H_
-#define _CPU_GDT_H_
-
-//
-// Local structure definitions
-//
-
-#pragma pack (1)
-
-//
-// Global Descriptor Entry structures
-//
-
-typedef struct _GDT_ENTRY {
- UINT16 Limit15_0;
- UINT16 Base15_0;
- UINT8 Base23_16;
- UINT8 Type;
- UINT8 Limit19_16_and_flags;
- UINT8 Base31_24;
-} GDT_ENTRY;
-
-typedef
-struct _GDT_ENTRIES {
- GDT_ENTRY Null;
- GDT_ENTRY Linear;
- GDT_ENTRY LinearCode;
- GDT_ENTRY SysData;
- GDT_ENTRY SysCode;
- GDT_ENTRY LinearCode64;
- GDT_ENTRY Spare4;
- GDT_ENTRY Spare5;
-} GDT_ENTRIES;
-
-#pragma pack ()
-
-#define NULL_SEL OFFSET_OF (GDT_ENTRIES, Null)
-#define LINEAR_SEL OFFSET_OF (GDT_ENTRIES, Linear)
-#define LINEAR_CODE_SEL OFFSET_OF (GDT_ENTRIES, LinearCode)
-#define SYS_DATA_SEL OFFSET_OF (GDT_ENTRIES, SysData)
-#define SYS_CODE_SEL OFFSET_OF (GDT_ENTRIES, SysCode)
-#define LINEAR_CODE64_SEL OFFSET_OF (GDT_ENTRIES, LinearCode64)
-#define SPARE4_SEL OFFSET_OF (GDT_ENTRIES, Spare4)
-#define SPARE5_SEL OFFSET_OF (GDT_ENTRIES, Spare5)
-
-#if defined (MDE_CPU_IA32)
-#define CPU_CODE_SEL LINEAR_CODE_SEL
-#define CPU_DATA_SEL LINEAR_SEL
-#elif defined (MDE_CPU_X64)
-#define CPU_CODE_SEL LINEAR_CODE64_SEL
-#define CPU_DATA_SEL LINEAR_SEL
-#else
-#error CPU type not supported for CPU GDT initialization!
-#endif
-
-#endif // _CPU_GDT_H_
-
diff --git a/UefiCpuPkg/CpuDxe/CpuMp.c b/UefiCpuPkg/CpuDxe/CpuMp.c deleted file mode 100644 index 4ddcca208a..0000000000 --- a/UefiCpuPkg/CpuDxe/CpuMp.c +++ /dev/null @@ -1,1709 +0,0 @@ -/** @file
- CPU DXE Module.
-
- Copyright (c) 2008 - 2015, Intel Corporation. All rights reserved.<BR>
- This program and the accompanying materials
- are licensed and made available under the terms and conditions of the BSD License
- which accompanies this distribution. The full text of the license may be found at
- http://opensource.org/licenses/bsd-license.php
-
- THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
- WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
-
-**/
-
-#include "CpuDxe.h"
-#include "CpuMp.h"
-
-UINTN gMaxLogicalProcessorNumber;
-UINTN gApStackSize;
-UINTN gPollInterval = 100; // 100 microseconds
-
-MP_SYSTEM_DATA mMpSystemData;
-EFI_HANDLE mMpServiceHandle = NULL;
-EFI_EVENT mExitBootServicesEvent = (EFI_EVENT)NULL;
-
-VOID *mCommonStack = 0;
-VOID *mTopOfApCommonStack = 0;
-VOID *mApStackStart = 0;
-
-volatile BOOLEAN mAPsAlreadyInitFinished = FALSE;
-volatile BOOLEAN mStopCheckAllAPsStatus = TRUE;
-
-EFI_MP_SERVICES_PROTOCOL mMpServicesTemplate = {
- GetNumberOfProcessors,
- GetProcessorInfo,
- StartupAllAPs,
- StartupThisAP,
- SwitchBSP,
- EnableDisableAP,
- WhoAmI
-};
-
-/**
- Get Mp Service Lock.
-
- @param CpuData the pointer to CPU_DATA_BLOCK of specified processor
-
-**/
-VOID
-GetMpSpinLock (
- IN CPU_DATA_BLOCK *CpuData
- )
-{
- while (!AcquireSpinLockOrFail (&CpuData->CpuDataLock)) {
- CpuPause ();
- }
- CpuData->LockSelf = GetApicId ();
-}
-
-/**
- Release Mp Service Lock.
-
- @param CpuData the pointer to CPU_DATA_BLOCK of specified processor
-
-**/
-VOID
-ReleaseMpSpinLock (
- IN CPU_DATA_BLOCK *CpuData
- )
-{
- ReleaseSpinLock (&CpuData->CpuDataLock);
-}
-
-/**
- Check whether caller processor is BSP.
-
- @retval TRUE the caller is BSP
- @retval FALSE the caller is AP
-
-**/
-BOOLEAN
-IsBSP (
- VOID
- )
-{
- UINTN CpuIndex;
- CPU_DATA_BLOCK *CpuData;
-
- CpuData = NULL;
-
- WhoAmI (&mMpServicesTemplate, &CpuIndex);
- CpuData = &mMpSystemData.CpuDatas[CpuIndex];
-
- return CpuData->Info.StatusFlag & PROCESSOR_AS_BSP_BIT ? TRUE : FALSE;
-}
-
-/**
- Get the Application Processors state.
-
- @param CpuData the pointer to CPU_DATA_BLOCK of specified AP
-
- @retval CPU_STATE the AP status
-
-**/
-CPU_STATE
-GetApState (
- IN CPU_DATA_BLOCK *CpuData
- )
-{
- CPU_STATE State;
-
- GetMpSpinLock (CpuData);
- State = CpuData->State;
- ReleaseMpSpinLock (CpuData);
-
- return State;
-}
-
-/**
- Set the Application Processors state.
-
- @param CpuData The pointer to CPU_DATA_BLOCK of specified AP
- @param State The AP status
-
-**/
-VOID
-SetApState (
- IN CPU_DATA_BLOCK *CpuData,
- IN CPU_STATE State
- )
-{
- GetMpSpinLock (CpuData);
- CpuData->State = State;
- ReleaseMpSpinLock (CpuData);
-}
-
-/**
- Set the Application Processor prepare to run a function specified
- by Params.
-
- @param CpuData the pointer to CPU_DATA_BLOCK of specified AP
- @param Procedure A pointer to the function to be run on enabled APs of the system
- @param ProcedureArgument Pointer to the optional parameter of the assigned function
-
-**/
-VOID
-SetApProcedure (
- IN CPU_DATA_BLOCK *CpuData,
- IN EFI_AP_PROCEDURE Procedure,
- IN VOID *ProcedureArgument
- )
-{
- GetMpSpinLock (CpuData);
- CpuData->Parameter = ProcedureArgument;
- CpuData->Procedure = Procedure;
- ReleaseMpSpinLock (CpuData);
-}
-
-/**
- Check the Application Processors Status whether contains the Flags.
-
- @param CpuData the pointer to CPU_DATA_BLOCK of specified AP
- @param Flags the StatusFlag describing in EFI_PROCESSOR_INFORMATION
-
- @retval TRUE the AP status includes the StatusFlag
- @retval FALSE the AP status excludes the StatusFlag
-
-**/
-BOOLEAN
-TestCpuStatusFlag (
- IN CPU_DATA_BLOCK *CpuData,
- IN UINT32 Flags
- )
-{
- UINT32 Ret;
-
- GetMpSpinLock (CpuData);
- Ret = CpuData->Info.StatusFlag & Flags;
- ReleaseMpSpinLock (CpuData);
-
- return (BOOLEAN) (Ret != 0);
-}
-
-/**
- Bitwise-Or of the Application Processors Status with the Flags.
-
- @param CpuData the pointer to CPU_DATA_BLOCK of specified AP
- @param Flags the StatusFlag describing in EFI_PROCESSOR_INFORMATION
-
-**/
-VOID
-CpuStatusFlagOr (
- IN CPU_DATA_BLOCK *CpuData,
- IN UINT32 Flags
- )
-{
- GetMpSpinLock (CpuData);
- CpuData->Info.StatusFlag |= Flags;
- ReleaseMpSpinLock (CpuData);
-}
-
-/**
- Bitwise-AndNot of the Application Processors Status with the Flags.
-
- @param CpuData the pointer to CPU_DATA_BLOCK of specified AP
- @param Flags the StatusFlag describing in EFI_PROCESSOR_INFORMATION
-
-**/
-VOID
-CpuStatusFlagAndNot (
- IN CPU_DATA_BLOCK *CpuData,
- IN UINT32 Flags
- )
-{
- GetMpSpinLock (CpuData);
- CpuData->Info.StatusFlag &= ~Flags;
- ReleaseMpSpinLock (CpuData);
-}
-
-/**
- Searches for the next blocking AP.
-
- Search for the next AP that is put in blocking state by single-threaded StartupAllAPs().
-
- @param NextNumber Pointer to the processor number of the next blocking AP.
-
- @retval EFI_SUCCESS The next blocking AP has been found.
- @retval EFI_NOT_FOUND No blocking AP exists.
-
-**/
-EFI_STATUS
-GetNextBlockedNumber (
- OUT UINTN *NextNumber
- )
-{
- UINTN Number;
- CPU_STATE CpuState;
- CPU_DATA_BLOCK *CpuData;
-
- for (Number = 0; Number < mMpSystemData.NumberOfProcessors; Number++) {
- CpuData = &mMpSystemData.CpuDatas[Number];
- if (TestCpuStatusFlag (CpuData, PROCESSOR_AS_BSP_BIT)) {
- //
- // Skip BSP
- //
- continue;
- }
-
- CpuState = GetApState (CpuData);
- if (CpuState == CpuStateBlocked) {
- *NextNumber = Number;
- return EFI_SUCCESS;
- }
- }
-
- return EFI_NOT_FOUND;
-}
-
-/**
- Check if the APs state are finished, and update them to idle state
- by StartupAllAPs().
-
-**/
-VOID
-CheckAndUpdateAllAPsToIdleState (
- VOID
- )
-{
- UINTN ProcessorNumber;
- UINTN NextNumber;
- CPU_DATA_BLOCK *CpuData;
- EFI_STATUS Status;
- CPU_STATE CpuState;
-
- for (ProcessorNumber = 0; ProcessorNumber < mMpSystemData.NumberOfProcessors; ProcessorNumber++) {
- CpuData = &mMpSystemData.CpuDatas[ProcessorNumber];
- if (TestCpuStatusFlag (CpuData, PROCESSOR_AS_BSP_BIT)) {
- //
- // Skip BSP
- //
- continue;
- }
-
- if (!TestCpuStatusFlag (CpuData, PROCESSOR_ENABLED_BIT)) {
- //
- // Skip Disabled processors
- //
- continue;
- }
-
- CpuState = GetApState (CpuData);
- if (CpuState == CpuStateFinished) {
- mMpSystemData.FinishCount++;
- if (mMpSystemData.SingleThread) {
- Status = GetNextBlockedNumber (&NextNumber);
- if (!EFI_ERROR (Status)) {
- SetApState (&mMpSystemData.CpuDatas[NextNumber], CpuStateReady);
- SetApProcedure (&mMpSystemData.CpuDatas[NextNumber],
- mMpSystemData.Procedure,
- mMpSystemData.ProcedureArgument);
- //
- // If this AP previous state is blocked, we should
- // wake up this AP by sent a SIPI. and avoid
- // re-involve the sleeping state. we must call
- // SetApProcedure() first.
- //
- ResetProcessorToIdleState (&mMpSystemData.CpuDatas[NextNumber]);
- }
- }
- SetApState (CpuData, CpuStateIdle);
- }
- }
-}
-
-/**
- If the timeout expires before all APs returns from Procedure,
- we should forcibly terminate the executing AP and fill FailedList back
- by StartupAllAPs().
-
-**/
-VOID
-ResetAllFailedAPs (
- VOID
- )
-{
- CPU_DATA_BLOCK *CpuData;
- UINTN Number;
- CPU_STATE CpuState;
-
- if (mMpSystemData.FailedList != NULL) {
- *mMpSystemData.FailedList = AllocatePool ((mMpSystemData.StartCount - mMpSystemData.FinishCount + 1) * sizeof(UINTN));
- ASSERT (*mMpSystemData.FailedList != NULL);
- }
-
- for (Number = 0; Number < mMpSystemData.NumberOfProcessors; Number++) {
- CpuData = &mMpSystemData.CpuDatas[Number];
- if (TestCpuStatusFlag (CpuData, PROCESSOR_AS_BSP_BIT)) {
- //
- // Skip BSP
- //
- continue;
- }
-
- if (!TestCpuStatusFlag (CpuData, PROCESSOR_ENABLED_BIT)) {
- //
- // Skip Disabled processors
- //
- continue;
- }
-
- CpuState = GetApState (CpuData);
- if (CpuState != CpuStateIdle &&
- CpuState != CpuStateSleeping) {
- if (mMpSystemData.FailedList != NULL) {
- (*mMpSystemData.FailedList)[mMpSystemData.FailedListIndex++] = Number;
- }
- ResetProcessorToIdleState (CpuData);
- }
- }
-
- if (mMpSystemData.FailedList != NULL) {
- (*mMpSystemData.FailedList)[mMpSystemData.FailedListIndex] = END_OF_CPU_LIST;
- }
-}
-
-/**
- This service retrieves the number of logical processor in the platform
- and the number of those logical processors that are enabled on this boot.
- This service may only be called from the BSP.
-
- This function is used to retrieve the following information:
- - The number of logical processors that are present in the system.
- - The number of enabled logical processors in the system at the instant
- this call is made.
-
- Because MP Service Protocol provides services to enable and disable processors
- dynamically, the number of enabled logical processors may vary during the
- course of a boot session.
-
- If this service is called from an AP, then EFI_DEVICE_ERROR is returned.
- If NumberOfProcessors or NumberOfEnabledProcessors is NULL, then
- EFI_INVALID_PARAMETER is returned. Otherwise, the total number of processors
- is returned in NumberOfProcessors, the number of currently enabled processor
- is returned in NumberOfEnabledProcessors, and EFI_SUCCESS is returned.
-
- @param[in] This A pointer to the EFI_MP_SERVICES_PROTOCOL
- instance.
- @param[out] NumberOfProcessors Pointer to the total number of logical
- processors in the system, including the BSP
- and disabled APs.
- @param[out] NumberOfEnabledProcessors Pointer to the number of enabled logical
- processors that exist in system, including
- the BSP.
-
- @retval EFI_SUCCESS The number of logical processors and enabled
- logical processors was retrieved.
- @retval EFI_DEVICE_ERROR The calling processor is an AP.
- @retval EFI_INVALID_PARAMETER NumberOfProcessors is NULL.
- @retval EFI_INVALID_PARAMETER NumberOfEnabledProcessors is NULL.
-
-**/
-EFI_STATUS
-EFIAPI
-GetNumberOfProcessors (
- IN EFI_MP_SERVICES_PROTOCOL *This,
- OUT UINTN *NumberOfProcessors,
- OUT UINTN *NumberOfEnabledProcessors
- )
-{
- if ((NumberOfProcessors == NULL) || (NumberOfEnabledProcessors == NULL)) {
- return EFI_INVALID_PARAMETER;
- }
-
- if (!IsBSP ()) {
- return EFI_DEVICE_ERROR;
- }
-
- *NumberOfProcessors = mMpSystemData.NumberOfProcessors;
- *NumberOfEnabledProcessors = mMpSystemData.NumberOfEnabledProcessors;
- return EFI_SUCCESS;
-}
-
-/**
- Gets detailed MP-related information on the requested processor at the
- instant this call is made. This service may only be called from the BSP.
-
- This service retrieves detailed MP-related information about any processor
- on the platform. Note the following:
- - The processor information may change during the course of a boot session.
- - The information presented here is entirely MP related.
-
- Information regarding the number of caches and their sizes, frequency of operation,
- slot numbers is all considered platform-related information and is not provided
- by this service.
-
- @param[in] This A pointer to the EFI_MP_SERVICES_PROTOCOL
- instance.
- @param[in] ProcessorNumber The handle number of processor.
- @param[out] ProcessorInfoBuffer A pointer to the buffer where information for
- the requested processor is deposited.
-
- @retval EFI_SUCCESS Processor information was returned.
- @retval EFI_DEVICE_ERROR The calling processor is an AP.
- @retval EFI_INVALID_PARAMETER ProcessorInfoBuffer is NULL.
- @retval EFI_NOT_FOUND The processor with the handle specified by
- ProcessorNumber does not exist in the platform.
-
-**/
-EFI_STATUS
-EFIAPI
-GetProcessorInfo (
- IN EFI_MP_SERVICES_PROTOCOL *This,
- IN UINTN ProcessorNumber,
- OUT EFI_PROCESSOR_INFORMATION *ProcessorInfoBuffer
- )
-{
- if (ProcessorInfoBuffer == NULL) {
- return EFI_INVALID_PARAMETER;
- }
-
- if (!IsBSP ()) {
- return EFI_DEVICE_ERROR;
- }
-
- if (ProcessorNumber >= mMpSystemData.NumberOfProcessors) {
- return EFI_NOT_FOUND;
- }
-
- CopyMem (ProcessorInfoBuffer, &mMpSystemData.CpuDatas[ProcessorNumber], sizeof (EFI_PROCESSOR_INFORMATION));
- return EFI_SUCCESS;
-}
-
-/**
- This service executes a caller provided function on all enabled APs. APs can
- run either simultaneously or one at a time in sequence. This service supports
- both blocking and non-blocking requests. The non-blocking requests use EFI
- events so the BSP can detect when the APs have finished. This service may only
- be called from the BSP.
-
- This function is used to dispatch all the enabled APs to the function specified
- by Procedure. If any enabled AP is busy, then EFI_NOT_READY is returned
- immediately and Procedure is not started on any AP.
-
- If SingleThread is TRUE, all the enabled APs execute the function specified by
- Procedure one by one, in ascending order of processor handle number. Otherwise,
- all the enabled APs execute the function specified by Procedure simultaneously.
-
- If WaitEvent is NULL, execution is in blocking mode. The BSP waits until all
- APs finish or TimeoutInMicroseconds expires. Otherwise, execution is in non-blocking
- mode, and the BSP returns from this service without waiting for APs. If a
- non-blocking mode is requested after the UEFI Event EFI_EVENT_GROUP_READY_TO_BOOT
- is signaled, then EFI_UNSUPPORTED must be returned.
-
- If the timeout specified by TimeoutInMicroseconds expires before all APs return
- from Procedure, then Procedure on the failed APs is terminated. All enabled APs
- are always available for further calls to EFI_MP_SERVICES_PROTOCOL.StartupAllAPs()
- and EFI_MP_SERVICES_PROTOCOL.StartupThisAP(). If FailedCpuList is not NULL, its
- content points to the list of processor handle numbers in which Procedure was
- terminated.
-
- Note: It is the responsibility of the consumer of the EFI_MP_SERVICES_PROTOCOL.StartupAllAPs()
- to make sure that the nature of the code that is executed on the BSP and the
- dispatched APs is well controlled. The MP Services Protocol does not guarantee
- that the Procedure function is MP-safe. Hence, the tasks that can be run in
- parallel are limited to certain independent tasks and well-controlled exclusive
- code. EFI services and protocols may not be called by APs unless otherwise
- specified.
-
- In blocking execution mode, BSP waits until all APs finish or
- TimeoutInMicroseconds expires.
-
- In non-blocking execution mode, BSP is freed to return to the caller and then
- proceed to the next task without having to wait for APs. The following
- sequence needs to occur in a non-blocking execution mode:
-
- -# The caller that intends to use this MP Services Protocol in non-blocking
- mode creates WaitEvent by calling the EFI CreateEvent() service. The caller
- invokes EFI_MP_SERVICES_PROTOCOL.StartupAllAPs(). If the parameter WaitEvent
- is not NULL, then StartupAllAPs() executes in non-blocking mode. It requests
- the function specified by Procedure to be started on all the enabled APs,
- and releases the BSP to continue with other tasks.
- -# The caller can use the CheckEvent() and WaitForEvent() services to check
- the state of the WaitEvent created in step 1.
- -# When the APs complete their task or TimeoutInMicroSecondss expires, the MP
- Service signals WaitEvent by calling the EFI SignalEvent() function. If
- FailedCpuList is not NULL, its content is available when WaitEvent is
- signaled. If all APs returned from Procedure prior to the timeout, then
- FailedCpuList is set to NULL. If not all APs return from Procedure before
- the timeout, then FailedCpuList is filled in with the list of the failed
- APs. The buffer is allocated by MP Service Protocol using AllocatePool().
- It is the caller's responsibility to free the buffer with FreePool() service.
- -# This invocation of SignalEvent() function informs the caller that invoked
- EFI_MP_SERVICES_PROTOCOL.StartupAllAPs() that either all the APs completed
- the specified task or a timeout occurred. The contents of FailedCpuList
- can be examined to determine which APs did not complete the specified task
- prior to the timeout.
-
- @param[in] This A pointer to the EFI_MP_SERVICES_PROTOCOL
- instance.
- @param[in] Procedure A pointer to the function to be run on
- enabled APs of the system. See type
- EFI_AP_PROCEDURE.
- @param[in] SingleThread If TRUE, then all the enabled APs execute
- the function specified by Procedure one by
- one, in ascending order of processor handle
- number. If FALSE, then all the enabled APs
- execute the function specified by Procedure
- simultaneously.
- @param[in] WaitEvent The event created by the caller with CreateEvent()
- service. If it is NULL, then execute in
- blocking mode. BSP waits until all APs finish
- or TimeoutInMicroseconds expires. If it's
- not NULL, then execute in non-blocking mode.
- BSP requests the function specified by
- Procedure to be started on all the enabled
- APs, and go on executing immediately. If
- all return from Procedure, or TimeoutInMicroseconds
- expires, this event is signaled. The BSP
- can use the CheckEvent() or WaitForEvent()
- services to check the state of event. Type
- EFI_EVENT is defined in CreateEvent() in
- the Unified Extensible Firmware Interface
- Specification.
- @param[in] TimeoutInMicroseconds Indicates the time limit in microseconds for
- APs to return from Procedure, either for
- blocking or non-blocking mode. Zero means
- infinity. If the timeout expires before
- all APs return from Procedure, then Procedure
- on the failed APs is terminated. All enabled
- APs are available for next function assigned
- by EFI_MP_SERVICES_PROTOCOL.StartupAllAPs()
- or EFI_MP_SERVICES_PROTOCOL.StartupThisAP().
- If the timeout expires in blocking mode,
- BSP returns EFI_TIMEOUT. If the timeout
- expires in non-blocking mode, WaitEvent
- is signaled with SignalEvent().
- @param[in] ProcedureArgument The parameter passed into Procedure for
- all APs.
- @param[out] FailedCpuList If NULL, this parameter is ignored. Otherwise,
- if all APs finish successfully, then its
- content is set to NULL. If not all APs
- finish before timeout expires, then its
- content is set to address of the buffer
- holding handle numbers of the failed APs.
- The buffer is allocated by MP Service Protocol,
- and it's the caller's responsibility to
- free the buffer with FreePool() service.
- In blocking mode, it is ready for consumption
- when the call returns. In non-blocking mode,
- it is ready when WaitEvent is signaled. The
- list of failed CPU is terminated by
- END_OF_CPU_LIST.
-
- @retval EFI_SUCCESS In blocking mode, all APs have finished before
- the timeout expired.
- @retval EFI_SUCCESS In non-blocking mode, function has been dispatched
- to all enabled APs.
- @retval EFI_UNSUPPORTED A non-blocking mode request was made after the
- UEFI event EFI_EVENT_GROUP_READY_TO_BOOT was
- signaled.
- @retval EFI_DEVICE_ERROR Caller processor is AP.
- @retval EFI_NOT_STARTED No enabled APs exist in the system.
- @retval EFI_NOT_READY Any enabled APs are busy.
- @retval EFI_TIMEOUT In blocking mode, the timeout expired before
- all enabled APs have finished.
- @retval EFI_INVALID_PARAMETER Procedure is NULL.
-
-**/
-EFI_STATUS
-EFIAPI
-StartupAllAPs (
- IN EFI_MP_SERVICES_PROTOCOL *This,
- IN EFI_AP_PROCEDURE Procedure,
- IN BOOLEAN SingleThread,
- IN EFI_EVENT WaitEvent OPTIONAL,
- IN UINTN TimeoutInMicroseconds,
- IN VOID *ProcedureArgument OPTIONAL,
- OUT UINTN **FailedCpuList OPTIONAL
- )
-{
- EFI_STATUS Status;
- CPU_DATA_BLOCK *CpuData;
- UINTN Number;
- CPU_STATE APInitialState;
- CPU_STATE CpuState;
-
- CpuData = NULL;
-
- if (FailedCpuList != NULL) {
- *FailedCpuList = NULL;
- }
-
- if (!IsBSP ()) {
- return EFI_DEVICE_ERROR;
- }
-
- if (mMpSystemData.NumberOfProcessors == 1) {
- return EFI_NOT_STARTED;
- }
-
- if (Procedure == NULL) {
- return EFI_INVALID_PARAMETER;
- }
-
- //
- // temporarily stop checkAllAPsStatus for avoid resource dead-lock.
- //
- mStopCheckAllAPsStatus = TRUE;
-
- for (Number = 0; Number < mMpSystemData.NumberOfProcessors; Number++) {
- CpuData = &mMpSystemData.CpuDatas[Number];
- if (TestCpuStatusFlag (CpuData, PROCESSOR_AS_BSP_BIT)) {
- //
- // Skip BSP
- //
- continue;
- }
-
- if (!TestCpuStatusFlag (CpuData, PROCESSOR_ENABLED_BIT)) {
- //
- // Skip Disabled processors
- //
- continue;
- }
-
- CpuState = GetApState (CpuData);
- if (CpuState != CpuStateIdle &&
- CpuState != CpuStateSleeping) {
- return EFI_NOT_READY;
- }
- }
-
- mMpSystemData.Procedure = Procedure;
- mMpSystemData.ProcedureArgument = ProcedureArgument;
- mMpSystemData.WaitEvent = WaitEvent;
- mMpSystemData.Timeout = TimeoutInMicroseconds;
- mMpSystemData.TimeoutActive = (BOOLEAN) (TimeoutInMicroseconds != 0);
- mMpSystemData.FinishCount = 0;
- mMpSystemData.StartCount = 0;
- mMpSystemData.SingleThread = SingleThread;
- mMpSystemData.FailedList = FailedCpuList;
- mMpSystemData.FailedListIndex = 0;
- APInitialState = CpuStateReady;
-
- for (Number = 0; Number < mMpSystemData.NumberOfProcessors; Number++) {
- CpuData = &mMpSystemData.CpuDatas[Number];
- if (TestCpuStatusFlag (CpuData, PROCESSOR_AS_BSP_BIT)) {
- //
- // Skip BSP
- //
- continue;
- }
-
- if (!TestCpuStatusFlag (CpuData, PROCESSOR_ENABLED_BIT)) {
- //
- // Skip Disabled processors
- //
- continue;
- }
-
- //
- // Get APs prepared, and put failing APs into FailedCpuList
- // if "SingleThread", only 1 AP will put to ready state, other AP will be put to ready
- // state 1 by 1, until the previous 1 finished its task
- // if not "SingleThread", all APs are put to ready state from the beginning
- //
- CpuState = GetApState (CpuData);
- if (CpuState == CpuStateIdle ||
- CpuState == CpuStateSleeping) {
- mMpSystemData.StartCount++;
-
- SetApState (CpuData, APInitialState);
-
- if (APInitialState == CpuStateReady) {
- SetApProcedure (CpuData, Procedure, ProcedureArgument);
- //
- // If this AP previous state is Sleeping, we should
- // wake up this AP by sent a SIPI. and avoid
- // re-involve the sleeping state. we must call
- // SetApProcedure() first.
- //
- if (CpuState == CpuStateSleeping) {
- ResetProcessorToIdleState (CpuData);
- }
- }
-
- if (SingleThread) {
- APInitialState = CpuStateBlocked;
- }
- }
- }
-
- mStopCheckAllAPsStatus = FALSE;
-
- if (WaitEvent != NULL) {
- //
- // non blocking
- //
- return EFI_SUCCESS;
- }
-
- //
- // Blocking temporarily stop CheckAllAPsStatus()
- //
- mStopCheckAllAPsStatus = TRUE;
-
- while (TRUE) {
- CheckAndUpdateAllAPsToIdleState ();
- if (mMpSystemData.FinishCount == mMpSystemData.StartCount) {
- Status = EFI_SUCCESS;
- goto Done;
- }
-
- //
- // task timeout
- //
- if (mMpSystemData.TimeoutActive && mMpSystemData.Timeout < 0) {
- ResetAllFailedAPs();
- Status = EFI_TIMEOUT;
- goto Done;
- }
-
- gBS->Stall (gPollInterval);
- mMpSystemData.Timeout -= gPollInterval;
- }
-
-Done:
-
- return Status;
-}
-
-/**
- This service lets the caller get one enabled AP to execute a caller-provided
- function. The caller can request the BSP to either wait for the completion
- of the AP or just proceed with the next task by using the EFI event mechanism.
- See EFI_MP_SERVICES_PROTOCOL.StartupAllAPs() for more details on non-blocking
- execution support. This service may only be called from the BSP.
-
- This function is used to dispatch one enabled AP to the function specified by
- Procedure passing in the argument specified by ProcedureArgument. If WaitEvent
- is NULL, execution is in blocking mode. The BSP waits until the AP finishes or
- TimeoutInMicroSecondss expires. Otherwise, execution is in non-blocking mode.
- BSP proceeds to the next task without waiting for the AP. If a non-blocking mode
- is requested after the UEFI Event EFI_EVENT_GROUP_READY_TO_BOOT is signaled,
- then EFI_UNSUPPORTED must be returned.
-
- If the timeout specified by TimeoutInMicroseconds expires before the AP returns
- from Procedure, then execution of Procedure by the AP is terminated. The AP is
- available for subsequent calls to EFI_MP_SERVICES_PROTOCOL.StartupAllAPs() and
- EFI_MP_SERVICES_PROTOCOL.StartupThisAP().
-
- @param[in] This A pointer to the EFI_MP_SERVICES_PROTOCOL
- instance.
- @param[in] Procedure A pointer to the function to be run on
- enabled APs of the system. See type
- EFI_AP_PROCEDURE.
- @param[in] ProcessorNumber The handle number of the AP. The range is
- from 0 to the total number of logical
- processors minus 1. The total number of
- logical processors can be retrieved by
- EFI_MP_SERVICES_PROTOCOL.GetNumberOfProcessors().
- @param[in] WaitEvent The event created by the caller with CreateEvent()
- service. If it is NULL, then execute in
- blocking mode. BSP waits until all APs finish
- or TimeoutInMicroseconds expires. If it's
- not NULL, then execute in non-blocking mode.
- BSP requests the function specified by
- Procedure to be started on all the enabled
- APs, and go on executing immediately. If
- all return from Procedure or TimeoutInMicroseconds
- expires, this event is signaled. The BSP
- can use the CheckEvent() or WaitForEvent()
- services to check the state of event. Type
- EFI_EVENT is defined in CreateEvent() in
- the Unified Extensible Firmware Interface
- Specification.
- @param[in] TimeoutInMicroseconds Indicates the time limit in microseconds for
- APs to return from Procedure, either for
- blocking or non-blocking mode. Zero means
- infinity. If the timeout expires before
- all APs return from Procedure, then Procedure
- on the failed APs is terminated. All enabled
- APs are available for next function assigned
- by EFI_MP_SERVICES_PROTOCOL.StartupAllAPs()
- or EFI_MP_SERVICES_PROTOCOL.StartupThisAP().
- If the timeout expires in blocking mode,
- BSP returns EFI_TIMEOUT. If the timeout
- expires in non-blocking mode, WaitEvent
- is signaled with SignalEvent().
- @param[in] ProcedureArgument The parameter passed into Procedure for
- all APs.
- @param[out] Finished If NULL, this parameter is ignored. In
- blocking mode, this parameter is ignored.
- In non-blocking mode, if AP returns from
- Procedure before the timeout expires, its
- content is set to TRUE. Otherwise, the
- value is set to FALSE. The caller can
- determine if the AP returned from Procedure
- by evaluating this value.
-
- @retval EFI_SUCCESS In blocking mode, specified AP finished before
- the timeout expires.
- @retval EFI_SUCCESS In non-blocking mode, the function has been
- dispatched to specified AP.
- @retval EFI_UNSUPPORTED A non-blocking mode request was made after the
- UEFI event EFI_EVENT_GROUP_READY_TO_BOOT was
- signaled.
- @retval EFI_DEVICE_ERROR The calling processor is an AP.
- @retval EFI_TIMEOUT In blocking mode, the timeout expired before
- the specified AP has finished.
- @retval EFI_NOT_READY The specified AP is busy.
- @retval EFI_NOT_FOUND The processor with the handle specified by
- ProcessorNumber does not exist.
- @retval EFI_INVALID_PARAMETER ProcessorNumber specifies the BSP or disabled AP.
- @retval EFI_INVALID_PARAMETER Procedure is NULL.
-
-**/
-EFI_STATUS
-EFIAPI
-StartupThisAP (
- IN EFI_MP_SERVICES_PROTOCOL *This,
- IN EFI_AP_PROCEDURE Procedure,
- IN UINTN ProcessorNumber,
- IN EFI_EVENT WaitEvent OPTIONAL,
- IN UINTN TimeoutInMicroseconds,
- IN VOID *ProcedureArgument OPTIONAL,
- OUT BOOLEAN *Finished OPTIONAL
- )
-{
- CPU_DATA_BLOCK *CpuData;
- CPU_STATE CpuState;
-
- CpuData = NULL;
-
- if (Finished != NULL) {
- *Finished = FALSE;
- }
-
- if (!IsBSP ()) {
- return EFI_DEVICE_ERROR;
- }
-
- if (Procedure == NULL) {
- return EFI_INVALID_PARAMETER;
- }
-
- if (ProcessorNumber >= mMpSystemData.NumberOfProcessors) {
- return EFI_NOT_FOUND;
- }
-
- //
- // temporarily stop checkAllAPsStatus for avoid resource dead-lock.
- //
- mStopCheckAllAPsStatus = TRUE;
-
- CpuData = &mMpSystemData.CpuDatas[ProcessorNumber];
- if (TestCpuStatusFlag (CpuData, PROCESSOR_AS_BSP_BIT) ||
- !TestCpuStatusFlag (CpuData, PROCESSOR_ENABLED_BIT)) {
- return EFI_INVALID_PARAMETER;
- }
-
- CpuState = GetApState (CpuData);
- if (CpuState != CpuStateIdle &&
- CpuState != CpuStateSleeping) {
- return EFI_NOT_READY;
- }
-
- SetApState (CpuData, CpuStateReady);
-
- SetApProcedure (CpuData, Procedure, ProcedureArgument);
- //
- // If this AP previous state is Sleeping, we should
- // wake up this AP by sent a SIPI. and avoid
- // re-involve the sleeping state. we must call
- // SetApProcedure() first.
- //
- if (CpuState == CpuStateSleeping) {
- ResetProcessorToIdleState (CpuData);
- }
-
- CpuData->Timeout = TimeoutInMicroseconds;
- CpuData->WaitEvent = WaitEvent;
- CpuData->TimeoutActive = (BOOLEAN) (TimeoutInMicroseconds != 0);
- CpuData->Finished = Finished;
-
- mStopCheckAllAPsStatus = FALSE;
-
- if (WaitEvent != NULL) {
- //
- // Non Blocking
- //
- return EFI_SUCCESS;
- }
-
- //
- // Blocking
- //
- while (TRUE) {
- if (GetApState (CpuData) == CpuStateFinished) {
- SetApState (CpuData, CpuStateIdle);
- break;
- }
-
- if (CpuData->TimeoutActive && CpuData->Timeout < 0) {
- ResetProcessorToIdleState (CpuData);
- return EFI_TIMEOUT;
- }
-
- gBS->Stall (gPollInterval);
- CpuData->Timeout -= gPollInterval;
- }
-
- return EFI_SUCCESS;
-}
-
-/**
- This service switches the requested AP to be the BSP from that point onward.
- This service changes the BSP for all purposes. This call can only be performed
- by the current BSP.
-
- This service switches the requested AP to be the BSP from that point onward.
- This service changes the BSP for all purposes. The new BSP can take over the
- execution of the old BSP and continue seamlessly from where the old one left
- off. This service may not be supported after the UEFI Event EFI_EVENT_GROUP_READY_TO_BOOT
- is signaled.
-
- If the BSP cannot be switched prior to the return from this service, then
- EFI_UNSUPPORTED must be returned.
-
- @param[in] This A pointer to the EFI_MP_SERVICES_PROTOCOL instance.
- @param[in] ProcessorNumber The handle number of AP that is to become the new
- BSP. The range is from 0 to the total number of
- logical processors minus 1. The total number of
- logical processors can be retrieved by
- EFI_MP_SERVICES_PROTOCOL.GetNumberOfProcessors().
- @param[in] EnableOldBSP If TRUE, then the old BSP will be listed as an
- enabled AP. Otherwise, it will be disabled.
-
- @retval EFI_SUCCESS BSP successfully switched.
- @retval EFI_UNSUPPORTED Switching the BSP cannot be completed prior to
- this service returning.
- @retval EFI_UNSUPPORTED Switching the BSP is not supported.
- @retval EFI_SUCCESS The calling processor is an AP.
- @retval EFI_NOT_FOUND The processor with the handle specified by
- ProcessorNumber does not exist.
- @retval EFI_INVALID_PARAMETER ProcessorNumber specifies the current BSP or
- a disabled AP.
- @retval EFI_NOT_READY The specified AP is busy.
-
-**/
-EFI_STATUS
-EFIAPI
-SwitchBSP (
- IN EFI_MP_SERVICES_PROTOCOL *This,
- IN UINTN ProcessorNumber,
- IN BOOLEAN EnableOldBSP
- )
-{
- //
- // Current always return unsupported.
- //
- return EFI_UNSUPPORTED;
-}
-
-/**
- This service lets the caller enable or disable an AP from this point onward.
- This service may only be called from the BSP.
-
- This service allows the caller enable or disable an AP from this point onward.
- The caller can optionally specify the health status of the AP by Health. If
- an AP is being disabled, then the state of the disabled AP is implementation
- dependent. If an AP is enabled, then the implementation must guarantee that a
- complete initialization sequence is performed on the AP, so the AP is in a state
- that is compatible with an MP operating system. This service may not be supported
- after the UEFI Event EFI_EVENT_GROUP_READY_TO_BOOT is signaled.
-
- If the enable or disable AP operation cannot be completed prior to the return
- from this service, then EFI_UNSUPPORTED must be returned.
-
- @param[in] This A pointer to the EFI_MP_SERVICES_PROTOCOL instance.
- @param[in] ProcessorNumber The handle number of AP that is to become the new
- BSP. The range is from 0 to the total number of
- logical processors minus 1. The total number of
- logical processors can be retrieved by
- EFI_MP_SERVICES_PROTOCOL.GetNumberOfProcessors().
- @param[in] EnableAP Specifies the new state for the processor for
- enabled, FALSE for disabled.
- @param[in] HealthFlag If not NULL, a pointer to a value that specifies
- the new health status of the AP. This flag
- corresponds to StatusFlag defined in
- EFI_MP_SERVICES_PROTOCOL.GetProcessorInfo(). Only
- the PROCESSOR_HEALTH_STATUS_BIT is used. All other
- bits are ignored. If it is NULL, this parameter
- is ignored.
-
- @retval EFI_SUCCESS The specified AP was enabled or disabled successfully.
- @retval EFI_UNSUPPORTED Enabling or disabling an AP cannot be completed
- prior to this service returning.
- @retval EFI_UNSUPPORTED Enabling or disabling an AP is not supported.
- @retval EFI_DEVICE_ERROR The calling processor is an AP.
- @retval EFI_NOT_FOUND Processor with the handle specified by ProcessorNumber
- does not exist.
- @retval EFI_INVALID_PARAMETER ProcessorNumber specifies the BSP.
-
-**/
-EFI_STATUS
-EFIAPI
-EnableDisableAP (
- IN EFI_MP_SERVICES_PROTOCOL *This,
- IN UINTN ProcessorNumber,
- IN BOOLEAN EnableAP,
- IN UINT32 *HealthFlag OPTIONAL
- )
-{
- CPU_DATA_BLOCK *CpuData;
- BOOLEAN TempStopCheckState;
- CPU_STATE CpuState;
-
- CpuData = NULL;
- TempStopCheckState = FALSE;
-
- if (!IsBSP ()) {
- return EFI_DEVICE_ERROR;
- }
-
- if (ProcessorNumber >= mMpSystemData.NumberOfProcessors) {
- return EFI_NOT_FOUND;
- }
-
- //
- // temporarily stop checkAllAPsStatus for initialize parameters.
- //
- if (!mStopCheckAllAPsStatus) {
- mStopCheckAllAPsStatus = TRUE;
- TempStopCheckState = TRUE;
- }
-
- CpuData = &mMpSystemData.CpuDatas[ProcessorNumber];
- if (TestCpuStatusFlag (CpuData, PROCESSOR_AS_BSP_BIT)) {
- return EFI_INVALID_PARAMETER;
- }
-
- CpuState = GetApState (CpuData);
- if (CpuState != CpuStateIdle &&
- CpuState != CpuStateSleeping) {
- return EFI_UNSUPPORTED;
- }
-
- if (EnableAP) {
- if (!(TestCpuStatusFlag (CpuData, PROCESSOR_ENABLED_BIT))) {
- mMpSystemData.NumberOfEnabledProcessors++;
- }
- CpuStatusFlagOr (CpuData, PROCESSOR_ENABLED_BIT);
- } else {
- if (TestCpuStatusFlag (CpuData, PROCESSOR_ENABLED_BIT)) {
- mMpSystemData.NumberOfEnabledProcessors--;
- }
- CpuStatusFlagAndNot (CpuData, PROCESSOR_ENABLED_BIT);
- }
-
- if (HealthFlag != NULL) {
- CpuStatusFlagAndNot (CpuData, (UINT32)~PROCESSOR_HEALTH_STATUS_BIT);
- CpuStatusFlagOr (CpuData, (*HealthFlag & PROCESSOR_HEALTH_STATUS_BIT));
- }
-
- if (TempStopCheckState) {
- mStopCheckAllAPsStatus = FALSE;
- }
-
- return EFI_SUCCESS;
-}
-
-/**
- This return the handle number for the calling processor. This service may be
- called from the BSP and APs.
-
- This service returns the processor handle number for the calling processor.
- The returned value is in the range from 0 to the total number of logical
- processors minus 1. The total number of logical processors can be retrieved
- with EFI_MP_SERVICES_PROTOCOL.GetNumberOfProcessors(). This service may be
- called from the BSP and APs. If ProcessorNumber is NULL, then EFI_INVALID_PARAMETER
- is returned. Otherwise, the current processors handle number is returned in
- ProcessorNumber, and EFI_SUCCESS is returned.
-
- @param[in] This A pointer to the EFI_MP_SERVICES_PROTOCOL instance.
- @param[out] ProcessorNumber The handle number of AP that is to become the new
- BSP. The range is from 0 to the total number of
- logical processors minus 1. The total number of
- logical processors can be retrieved by
- EFI_MP_SERVICES_PROTOCOL.GetNumberOfProcessors().
-
- @retval EFI_SUCCESS The current processor handle number was returned
- in ProcessorNumber.
- @retval EFI_INVALID_PARAMETER ProcessorNumber is NULL.
-
-**/
-EFI_STATUS
-EFIAPI
-WhoAmI (
- IN EFI_MP_SERVICES_PROTOCOL *This,
- OUT UINTN *ProcessorNumber
- )
-{
- UINTN Index;
- UINT32 ProcessorId;
-
- if (ProcessorNumber == NULL) {
- return EFI_INVALID_PARAMETER;
- }
-
- ProcessorId = GetApicId ();
- for (Index = 0; Index < mMpSystemData.NumberOfProcessors; Index++) {
- if (mMpSystemData.CpuDatas[Index].Info.ProcessorId == ProcessorId) {
- break;
- }
- }
-
- *ProcessorNumber = Index;
- return EFI_SUCCESS;
-}
-
-/**
- Terminate AP's task and set it to idle state.
-
- This function terminates AP's task due to timeout by sending INIT-SIPI,
- and sends it to idle state.
-
- @param CpuData the pointer to CPU_DATA_BLOCK of specified AP
-
-**/
-VOID
-ResetProcessorToIdleState (
- IN CPU_DATA_BLOCK *CpuData
- )
-{
- ResetApStackless ((UINT32)CpuData->Info.ProcessorId);
-}
-
-/**
- Application Processors do loop routine
- after switch to its own stack.
-
- @param Context1 A pointer to the context to pass into the function.
- @param Context2 A pointer to the context to pass into the function.
-
-**/
-VOID
-ProcessorToIdleState (
- IN VOID *Context1, OPTIONAL
- IN VOID *Context2 OPTIONAL
- )
-{
- UINTN ProcessorNumber;
- CPU_DATA_BLOCK *CpuData;
- EFI_AP_PROCEDURE Procedure;
- volatile VOID *ProcedureArgument;
-
- AsmApDoneWithCommonStack ();
-
- while (!mAPsAlreadyInitFinished) {
- CpuPause ();
- }
-
- WhoAmI (&mMpServicesTemplate, &ProcessorNumber);
- CpuData = &mMpSystemData.CpuDatas[ProcessorNumber];
-
- //
- // Avoid forcibly reset AP caused the AP got lock not release.
- //
- if (CpuData->LockSelf == (INTN) GetApicId ()) {
- ReleaseSpinLock (&CpuData->CpuDataLock);
- }
-
- //
- // Avoid forcibly reset AP caused the timeout AP State is not
- // updated.
- //
- GetMpSpinLock (CpuData);
- if (CpuData->State == CpuStateBusy) {
- CpuData->Procedure = NULL;
- }
- CpuData->State = CpuStateIdle;
- ReleaseMpSpinLock (CpuData);
-
- while (TRUE) {
- GetMpSpinLock (CpuData);
- ProcedureArgument = CpuData->Parameter;
- Procedure = CpuData->Procedure;
- ReleaseMpSpinLock (CpuData);
-
- if (Procedure != NULL) {
- SetApState (CpuData, CpuStateBusy);
-
- Procedure ((VOID*) ProcedureArgument);
-
- GetMpSpinLock (CpuData);
- CpuData->Procedure = NULL;
- CpuData->State = CpuStateFinished;
- ReleaseMpSpinLock (CpuData);
- } else {
- //
- // if no procedure to execution, we simply put AP
- // into sleeping state, and waiting BSP sent SIPI.
- //
- GetMpSpinLock (CpuData);
- if (CpuData->State == CpuStateIdle) {
- CpuData->State = CpuStateSleeping;
- }
- ReleaseMpSpinLock (CpuData);
- }
-
- if (GetApState (CpuData) == CpuStateSleeping) {
- CpuSleep ();
- }
-
- CpuPause ();
- }
-
- CpuSleep ();
- CpuDeadLoop ();
-}
-
-/**
- Checks AP' status periodically.
-
- This function is triggerred by timer perodically to check the
- state of AP forStartupThisAP() executed in non-blocking mode.
-
- @param Event Event triggered.
- @param Context Parameter passed with the event.
-
-**/
-VOID
-EFIAPI
-CheckThisAPStatus (
- IN EFI_EVENT Event,
- IN VOID *Context
- )
-{
- CPU_DATA_BLOCK *CpuData;
- CPU_STATE CpuState;
-
- CpuData = (CPU_DATA_BLOCK *) Context;
- if (CpuData->TimeoutActive) {
- CpuData->Timeout -= gPollInterval;
- }
-
- CpuState = GetApState (CpuData);
-
- if (CpuState == CpuStateFinished) {
- if (CpuData->Finished) {
- *CpuData->Finished = TRUE;
- }
- SetApState (CpuData, CpuStateIdle);
- goto out;
- }
-
- if (CpuData->TimeoutActive && CpuData->Timeout < 0) {
- if (CpuState != CpuStateIdle &&
- CpuData->Finished) {
- *CpuData->Finished = FALSE;
- }
- ResetProcessorToIdleState (CpuData);
- goto out;
- }
-
- return;
-
-out:
- CpuData->TimeoutActive = FALSE;
- gBS->SignalEvent (CpuData->WaitEvent);
- CpuData->WaitEvent = NULL;
-}
-
-/**
- Checks APs' status periodically.
-
- This function is triggerred by timer perodically to check the
- state of APs for StartupAllAPs() executed in non-blocking mode.
-
- @param Event Event triggered.
- @param Context Parameter passed with the event.
-
-**/
-VOID
-EFIAPI
-CheckAllAPsStatus (
- IN EFI_EVENT Event,
- IN VOID *Context
- )
-{
- CPU_DATA_BLOCK *CpuData;
- UINTN Number;
- EFI_STATUS Status;
-
- if (mMpSystemData.TimeoutActive) {
- mMpSystemData.Timeout -= gPollInterval;
- }
-
- if (mStopCheckAllAPsStatus) {
- return;
- }
-
- //
- // avoid next timer enter.
- //
- Status = gBS->SetTimer (
- mMpSystemData.CheckAllAPsEvent,
- TimerCancel,
- 0
- );
- ASSERT_EFI_ERROR (Status);
-
- if (mMpSystemData.WaitEvent != NULL) {
- CheckAndUpdateAllAPsToIdleState ();
- //
- // task timeout
- //
- if (mMpSystemData.TimeoutActive && mMpSystemData.Timeout < 0) {
- ResetAllFailedAPs();
- //
- // force exit
- //
- mMpSystemData.FinishCount = mMpSystemData.StartCount;
- }
-
- if (mMpSystemData.FinishCount != mMpSystemData.StartCount) {
- goto EXIT;
- }
-
- mMpSystemData.TimeoutActive = FALSE;
- gBS->SignalEvent (mMpSystemData.WaitEvent);
- mMpSystemData.WaitEvent = NULL;
- mStopCheckAllAPsStatus = TRUE;
-
- goto EXIT;
- }
-
- //
- // check each AP status for StartupThisAP
- //
- for (Number = 0; Number < mMpSystemData.NumberOfProcessors; Number++) {
- CpuData = &mMpSystemData.CpuDatas[Number];
- if (CpuData->WaitEvent) {
- CheckThisAPStatus (NULL, (VOID *)CpuData);
- }
- }
-
-EXIT:
- Status = gBS->SetTimer (
- mMpSystemData.CheckAllAPsEvent,
- TimerPeriodic,
- EFI_TIMER_PERIOD_MICROSECONDS (100)
- );
- ASSERT_EFI_ERROR (Status);
-}
-
-/**
- Application Processor C code entry point.
-
-**/
-VOID
-EFIAPI
-ApEntryPointInC (
- VOID
- )
-{
- VOID* TopOfApStack;
- UINTN ProcessorNumber;
-
- if (!mAPsAlreadyInitFinished) {
- FillInProcessorInformation (FALSE, mMpSystemData.NumberOfProcessors);
- TopOfApStack = (UINT8*)mApStackStart + gApStackSize;
- mApStackStart = TopOfApStack;
-
- //
- // Store the Stack address, when reset the AP, We can found the original address.
- //
- mMpSystemData.CpuDatas[mMpSystemData.NumberOfProcessors].TopOfStack = TopOfApStack;
- mMpSystemData.NumberOfProcessors++;
- mMpSystemData.NumberOfEnabledProcessors++;
- } else {
- WhoAmI (&mMpServicesTemplate, &ProcessorNumber);
- //
- // Get the original stack address.
- //
- TopOfApStack = mMpSystemData.CpuDatas[ProcessorNumber].TopOfStack;
- }
-
- SwitchStack (
- (SWITCH_STACK_ENTRY_POINT)(UINTN)ProcessorToIdleState,
- NULL,
- NULL,
- TopOfApStack);
-}
-
-/**
- This function is called by all processors (both BSP and AP) once and collects MP related data.
-
- @param Bsp TRUE if the CPU is BSP
- @param ProcessorNumber The specific processor number
-
- @retval EFI_SUCCESS Data for the processor collected and filled in
-
-**/
-EFI_STATUS
-FillInProcessorInformation (
- IN BOOLEAN Bsp,
- IN UINTN ProcessorNumber
- )
-{
- CPU_DATA_BLOCK *CpuData;
- UINT32 ProcessorId;
-
- CpuData = &mMpSystemData.CpuDatas[ProcessorNumber];
- ProcessorId = GetApicId ();
- CpuData->Info.ProcessorId = ProcessorId;
- CpuData->Info.StatusFlag = PROCESSOR_ENABLED_BIT | PROCESSOR_HEALTH_STATUS_BIT;
- if (Bsp) {
- CpuData->Info.StatusFlag |= PROCESSOR_AS_BSP_BIT;
- }
- CpuData->Info.Location.Package = ProcessorId;
- CpuData->Info.Location.Core = 0;
- CpuData->Info.Location.Thread = 0;
- CpuData->State = Bsp ? CpuStateBusy : CpuStateIdle;
-
- CpuData->Procedure = NULL;
- CpuData->Parameter = NULL;
- InitializeSpinLock (&CpuData->CpuDataLock);
- CpuData->LockSelf = -1;
-
- return EFI_SUCCESS;
-}
-
-/**
- Prepare the System Data.
-
- @retval EFI_SUCCESS the System Data finished initilization.
-
-**/
-EFI_STATUS
-InitMpSystemData (
- VOID
- )
-{
- EFI_STATUS Status;
-
- ZeroMem (&mMpSystemData, sizeof (MP_SYSTEM_DATA));
-
- mMpSystemData.NumberOfProcessors = 1;
- mMpSystemData.NumberOfEnabledProcessors = 1;
-
- mMpSystemData.CpuDatas = AllocateZeroPool (sizeof (CPU_DATA_BLOCK) * gMaxLogicalProcessorNumber);
- ASSERT(mMpSystemData.CpuDatas != NULL);
-
- Status = gBS->CreateEvent (
- EVT_TIMER | EVT_NOTIFY_SIGNAL,
- TPL_CALLBACK,
- CheckAllAPsStatus,
- NULL,
- &mMpSystemData.CheckAllAPsEvent
- );
- ASSERT_EFI_ERROR (Status);
-
- //
- // Set timer to check all APs status.
- //
- Status = gBS->SetTimer (
- mMpSystemData.CheckAllAPsEvent,
- TimerPeriodic,
- EFI_TIMER_PERIOD_MICROSECONDS (100)
- );
- ASSERT_EFI_ERROR (Status);
-
- //
- // BSP
- //
- FillInProcessorInformation (TRUE, 0);
-
- return EFI_SUCCESS;
-}
-
-/**
- Collects BIST data from HOB.
-
- This function collects BIST data from HOB built from Sec Platform Information
- PPI or SEC Platform Information2 PPI.
-
-**/
-VOID
-CollectBistDataFromHob (
- VOID
- )
-{
- EFI_HOB_GUID_TYPE *GuidHob;
- EFI_SEC_PLATFORM_INFORMATION_RECORD2 *SecPlatformInformation2;
- EFI_SEC_PLATFORM_INFORMATION_RECORD *SecPlatformInformation;
- UINTN NumberOfData;
- EFI_SEC_PLATFORM_INFORMATION_CPU *CpuInstance;
- EFI_SEC_PLATFORM_INFORMATION_CPU BspCpuInstance;
- UINTN ProcessorNumber;
- UINT32 InitialLocalApicId;
- CPU_DATA_BLOCK *CpuData;
-
- SecPlatformInformation2 = NULL;
- SecPlatformInformation = NULL;
-
- //
- // Get gEfiSecPlatformInformation2PpiGuid Guided HOB firstly
- //
- GuidHob = GetFirstGuidHob (&gEfiSecPlatformInformation2PpiGuid);
- if (GuidHob != NULL) {
- //
- // Sec Platform Information2 PPI includes BSP/APs' BIST information
- //
- SecPlatformInformation2 = GET_GUID_HOB_DATA (GuidHob);
- NumberOfData = SecPlatformInformation2->NumberOfCpus;
- CpuInstance = SecPlatformInformation2->CpuInstance;
- } else {
- //
- // Otherwise, get gEfiSecPlatformInformationPpiGuid Guided HOB
- //
- GuidHob = GetFirstGuidHob (&gEfiSecPlatformInformationPpiGuid);
- if (GuidHob != NULL) {
- SecPlatformInformation = GET_GUID_HOB_DATA (GuidHob);
- NumberOfData = 1;
- //
- // SEC Platform Information only includes BSP's BIST information
- // does not have BSP's APIC ID
- //
- BspCpuInstance.CpuLocation = GetApicId ();
- BspCpuInstance.InfoRecord.IA32HealthFlags.Uint32 = SecPlatformInformation->IA32HealthFlags.Uint32;
- CpuInstance = &BspCpuInstance;
- } else {
- DEBUG ((EFI_D_INFO, "Does not find any HOB stored CPU BIST information!\n"));
- //
- // Does not find any HOB stored BIST information
- //
- return;
- }
- }
-
- while ((NumberOfData--) > 0) {
- for (ProcessorNumber = 0; ProcessorNumber < mMpSystemData.NumberOfProcessors; ProcessorNumber++) {
- CpuData = &mMpSystemData.CpuDatas[ProcessorNumber];
- InitialLocalApicId = (UINT32) CpuData->Info.ProcessorId;
- if (InitialLocalApicId == CpuInstance[NumberOfData].CpuLocation) {
- //
- // Update CPU health status for MP Services Protocol according to BIST data.
- //
- if (CpuInstance[NumberOfData].InfoRecord.IA32HealthFlags.Uint32 != 0) {
- CpuData->Info.StatusFlag &= ~PROCESSOR_HEALTH_STATUS_BIT;
- //
- // Report Status Code that self test is failed
- //
- REPORT_STATUS_CODE (
- EFI_ERROR_CODE | EFI_ERROR_MAJOR,
- (EFI_COMPUTING_UNIT_HOST_PROCESSOR | EFI_CU_HP_EC_SELF_TEST)
- );
- }
- }
- }
- }
-}
-
-/**
- Callback function for ExitBootServices.
-
- @param Event Event whose notification function is being invoked.
- @param Context The pointer to the notification function's context,
- which is implementation-dependent.
-
-**/
-VOID
-EFIAPI
-ExitBootServicesCallback (
- IN EFI_EVENT Event,
- IN VOID *Context
- )
-{
- //
- // Avoid APs access invalid buff datas which allocated by BootServices,
- // so we send INIT IPI to APs to let them wait for SIPI state.
- //
- SendInitIpiAllExcludingSelf ();
-}
-
-/**
- Initialize Multi-processor support.
-
-**/
-VOID
-InitializeMpSupport (
- VOID
- )
-{
- EFI_STATUS Status;
-
- gMaxLogicalProcessorNumber = (UINTN) PcdGet32 (PcdCpuMaxLogicalProcessorNumber);
- if (gMaxLogicalProcessorNumber < 1) {
- DEBUG ((DEBUG_ERROR, "Setting PcdCpuMaxLogicalProcessorNumber should be more than zero.\n"));
- return;
- }
-
- if (gMaxLogicalProcessorNumber == 1) {
- return;
- }
-
- gApStackSize = (UINTN) PcdGet32 (PcdCpuApStackSize);
- ASSERT ((gApStackSize & (SIZE_4KB - 1)) == 0);
-
- mApStackStart = AllocatePages (EFI_SIZE_TO_PAGES (gMaxLogicalProcessorNumber * gApStackSize));
- ASSERT (mApStackStart != NULL);
-
- //
- // the first buffer of stack size used for common stack, when the amount of AP
- // more than 1, we should never free the common stack which maybe used for AP reset.
- //
- mCommonStack = mApStackStart;
- mTopOfApCommonStack = (UINT8*) mApStackStart + gApStackSize;
- mApStackStart = mTopOfApCommonStack;
-
- InitMpSystemData ();
-
- PrepareAPStartupCode ();
-
- StartApsStackless ();
-
- DEBUG ((DEBUG_INFO, "Detect CPU count: %d\n", mMpSystemData.NumberOfProcessors));
- if (mMpSystemData.NumberOfProcessors == 1) {
- FreeApStartupCode ();
- FreePages (mCommonStack, EFI_SIZE_TO_PAGES (gMaxLogicalProcessorNumber * gApStackSize));
- return;
- }
-
- mMpSystemData.CpuDatas = ReallocatePool (
- sizeof (CPU_DATA_BLOCK) * gMaxLogicalProcessorNumber,
- sizeof (CPU_DATA_BLOCK) * mMpSystemData.NumberOfProcessors,
- mMpSystemData.CpuDatas);
-
- mAPsAlreadyInitFinished = TRUE;
-
- //
- // Update CPU healthy information from Guided HOB
- //
- CollectBistDataFromHob ();
-
- Status = gBS->InstallMultipleProtocolInterfaces (
- &mMpServiceHandle,
- &gEfiMpServiceProtocolGuid, &mMpServicesTemplate,
- NULL
- );
- ASSERT_EFI_ERROR (Status);
-
- if (mMpSystemData.NumberOfProcessors < gMaxLogicalProcessorNumber) {
- FreePages (mApStackStart, EFI_SIZE_TO_PAGES (
- (gMaxLogicalProcessorNumber - mMpSystemData.NumberOfProcessors) *
- gApStackSize));
- }
-
- Status = gBS->CreateEvent (
- EVT_SIGNAL_EXIT_BOOT_SERVICES,
- TPL_CALLBACK,
- ExitBootServicesCallback,
- NULL,
- &mExitBootServicesEvent
- );
- ASSERT_EFI_ERROR (Status);
-}
diff --git a/UefiCpuPkg/CpuDxe/CpuMp.h b/UefiCpuPkg/CpuDxe/CpuMp.h deleted file mode 100644 index d2866e463b..0000000000 --- a/UefiCpuPkg/CpuDxe/CpuMp.h +++ /dev/null @@ -1,647 +0,0 @@ -/** @file
- CPU DXE MP support
-
- Copyright (c) 2006 - 2015, Intel Corporation. All rights reserved.<BR>
- This program and the accompanying materials
- are licensed and made available under the terms and conditions of the BSD License
- which accompanies this distribution. The full text of the license may be found at
- http://opensource.org/licenses/bsd-license.php
-
- THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
- WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
-
-**/
-
-#ifndef _CPU_MP_H_
-#define _CPU_MP_H_
-
-#include <Ppi/SecPlatformInformation.h>
-#include <Ppi/SecPlatformInformation2.h>
-#include <Protocol/MpService.h>
-#include <Library/SynchronizationLib.h>
-#include <Library/HobLib.h>
-#include <Library/ReportStatusCodeLib.h>
-
-/**
- Initialize Multi-processor support.
-
-**/
-VOID
-InitializeMpSupport (
- VOID
- );
-
-typedef
-VOID
-(EFIAPI *STACKLESS_AP_ENTRY_POINT)(
- VOID
- );
-
-/**
- Starts the Application Processors and directs them to jump to the
- specified routine.
-
- The processor jumps to this code in flat mode, but the processor's
- stack is not initialized.
-
- @retval EFI_SUCCESS The APs were started
-
-**/
-EFI_STATUS
-StartApsStackless (
- VOID
- );
-
-/**
- The AP entry point that the Startup-IPI target code will jump to.
-
- The processor jumps to this code in flat mode, but the processor's
- stack is not initialized.
-
-**/
-VOID
-EFIAPI
-AsmApEntryPoint (
- VOID
- );
-
-/**
- Releases the lock preventing other APs from using the shared AP
- stack.
-
- Once the AP has transitioned to using a new stack, it can call this
- function to allow another AP to proceed with using the shared stack.
-
-**/
-VOID
-EFIAPI
-AsmApDoneWithCommonStack (
- VOID
- );
-
-typedef enum {
- CpuStateIdle,
- CpuStateBlocked,
- CpuStateReady,
- CpuStateBusy,
- CpuStateFinished,
- CpuStateSleeping
-} CPU_STATE;
-
-/**
- Define Individual Processor Data block.
-
-**/
-typedef struct {
- EFI_PROCESSOR_INFORMATION Info;
- SPIN_LOCK CpuDataLock;
- INTN LockSelf;
- volatile CPU_STATE State;
-
- volatile EFI_AP_PROCEDURE Procedure;
- volatile VOID* Parameter;
- BOOLEAN *Finished;
- INTN Timeout;
- EFI_EVENT WaitEvent;
- BOOLEAN TimeoutActive;
- EFI_EVENT CheckThisAPEvent;
- VOID *TopOfStack;
-} CPU_DATA_BLOCK;
-
-/**
- Define MP data block which consumes individual processor block.
-
-**/
-typedef struct {
- CPU_DATA_BLOCK *CpuDatas;
- UINTN NumberOfProcessors;
- UINTN NumberOfEnabledProcessors;
-
- EFI_AP_PROCEDURE Procedure;
- VOID *ProcedureArgument;
- UINTN StartCount;
- UINTN FinishCount;
- BOOLEAN SingleThread;
- UINTN **FailedList;
- UINTN FailedListIndex;
- INTN Timeout;
- EFI_EVENT WaitEvent;
- BOOLEAN TimeoutActive;
- EFI_EVENT CheckAllAPsEvent;
-} MP_SYSTEM_DATA;
-
-/**
- This function is called by all processors (both BSP and AP) once and collects MP related data.
-
- @param Bsp TRUE if the CPU is BSP
- @param ProcessorNumber The specific processor number
-
- @retval EFI_SUCCESS Data for the processor collected and filled in
-
-**/
-EFI_STATUS
-FillInProcessorInformation (
- IN BOOLEAN Bsp,
- IN UINTN ProcessorNumber
- );
-
-/**
- This service retrieves the number of logical processor in the platform
- and the number of those logical processors that are enabled on this boot.
- This service may only be called from the BSP.
-
- This function is used to retrieve the following information:
- - The number of logical processors that are present in the system.
- - The number of enabled logical processors in the system at the instant
- this call is made.
-
- Because MP Service Protocol provides services to enable and disable processors
- dynamically, the number of enabled logical processors may vary during the
- course of a boot session.
-
- If this service is called from an AP, then EFI_DEVICE_ERROR is returned.
- If NumberOfProcessors or NumberOfEnabledProcessors is NULL, then
- EFI_INVALID_PARAMETER is returned. Otherwise, the total number of processors
- is returned in NumberOfProcessors, the number of currently enabled processor
- is returned in NumberOfEnabledProcessors, and EFI_SUCCESS is returned.
-
- @param[in] This A pointer to the EFI_MP_SERVICES_PROTOCOL
- instance.
- @param[out] NumberOfProcessors Pointer to the total number of logical
- processors in the system, including the BSP
- and disabled APs.
- @param[out] NumberOfEnabledProcessors Pointer to the number of enabled logical
- processors that exist in system, including
- the BSP.
-
- @retval EFI_SUCCESS The number of logical processors and enabled
- logical processors was retrieved.
- @retval EFI_DEVICE_ERROR The calling processor is an AP.
- @retval EFI_INVALID_PARAMETER NumberOfProcessors is NULL.
- @retval EFI_INVALID_PARAMETER NumberOfEnabledProcessors is NULL.
-
-**/
-EFI_STATUS
-EFIAPI
-GetNumberOfProcessors (
- IN EFI_MP_SERVICES_PROTOCOL *This,
- OUT UINTN *NumberOfProcessors,
- OUT UINTN *NumberOfEnabledProcessors
- );
-
-/**
- Gets detailed MP-related information on the requested processor at the
- instant this call is made. This service may only be called from the BSP.
-
- This service retrieves detailed MP-related information about any processor
- on the platform. Note the following:
- - The processor information may change during the course of a boot session.
- - The information presented here is entirely MP related.
-
- Information regarding the number of caches and their sizes, frequency of operation,
- slot numbers is all considered platform-related information and is not provided
- by this service.
-
- @param[in] This A pointer to the EFI_MP_SERVICES_PROTOCOL
- instance.
- @param[in] ProcessorNumber The handle number of processor.
- @param[out] ProcessorInfoBuffer A pointer to the buffer where information for
- the requested processor is deposited.
-
- @retval EFI_SUCCESS Processor information was returned.
- @retval EFI_DEVICE_ERROR The calling processor is an AP.
- @retval EFI_INVALID_PARAMETER ProcessorInfoBuffer is NULL.
- @retval EFI_NOT_FOUND The processor with the handle specified by
- ProcessorNumber does not exist in the platform.
-
-**/
-EFI_STATUS
-EFIAPI
-GetProcessorInfo (
- IN EFI_MP_SERVICES_PROTOCOL *This,
- IN UINTN ProcessorNumber,
- OUT EFI_PROCESSOR_INFORMATION *ProcessorInfoBuffer
- );
-
-/**
- This service executes a caller provided function on all enabled APs. APs can
- run either simultaneously or one at a time in sequence. This service supports
- both blocking and non-blocking requests. The non-blocking requests use EFI
- events so the BSP can detect when the APs have finished. This service may only
- be called from the BSP.
-
- This function is used to dispatch all the enabled APs to the function specified
- by Procedure. If any enabled AP is busy, then EFI_NOT_READY is returned
- immediately and Procedure is not started on any AP.
-
- If SingleThread is TRUE, all the enabled APs execute the function specified by
- Procedure one by one, in ascending order of processor handle number. Otherwise,
- all the enabled APs execute the function specified by Procedure simultaneously.
-
- If WaitEvent is NULL, execution is in blocking mode. The BSP waits until all
- APs finish or TimeoutInMicroseconds expires. Otherwise, execution is in non-blocking
- mode, and the BSP returns from this service without waiting for APs. If a
- non-blocking mode is requested after the UEFI Event EFI_EVENT_GROUP_READY_TO_BOOT
- is signaled, then EFI_UNSUPPORTED must be returned.
-
- If the timeout specified by TimeoutInMicroseconds expires before all APs return
- from Procedure, then Procedure on the failed APs is terminated. All enabled APs
- are always available for further calls to EFI_MP_SERVICES_PROTOCOL.StartupAllAPs()
- and EFI_MP_SERVICES_PROTOCOL.StartupThisAP(). If FailedCpuList is not NULL, its
- content points to the list of processor handle numbers in which Procedure was
- terminated.
-
- Note: It is the responsibility of the consumer of the EFI_MP_SERVICES_PROTOCOL.StartupAllAPs()
- to make sure that the nature of the code that is executed on the BSP and the
- dispatched APs is well controlled. The MP Services Protocol does not guarantee
- that the Procedure function is MP-safe. Hence, the tasks that can be run in
- parallel are limited to certain independent tasks and well-controlled exclusive
- code. EFI services and protocols may not be called by APs unless otherwise
- specified.
-
- In blocking execution mode, BSP waits until all APs finish or
- TimeoutInMicroseconds expires.
-
- In non-blocking execution mode, BSP is freed to return to the caller and then
- proceed to the next task without having to wait for APs. The following
- sequence needs to occur in a non-blocking execution mode:
-
- -# The caller that intends to use this MP Services Protocol in non-blocking
- mode creates WaitEvent by calling the EFI CreateEvent() service. The caller
- invokes EFI_MP_SERVICES_PROTOCOL.StartupAllAPs(). If the parameter WaitEvent
- is not NULL, then StartupAllAPs() executes in non-blocking mode. It requests
- the function specified by Procedure to be started on all the enabled APs,
- and releases the BSP to continue with other tasks.
- -# The caller can use the CheckEvent() and WaitForEvent() services to check
- the state of the WaitEvent created in step 1.
- -# When the APs complete their task or TimeoutInMicroSecondss expires, the MP
- Service signals WaitEvent by calling the EFI SignalEvent() function. If
- FailedCpuList is not NULL, its content is available when WaitEvent is
- signaled. If all APs returned from Procedure prior to the timeout, then
- FailedCpuList is set to NULL. If not all APs return from Procedure before
- the timeout, then FailedCpuList is filled in with the list of the failed
- APs. The buffer is allocated by MP Service Protocol using AllocatePool().
- It is the caller's responsibility to free the buffer with FreePool() service.
- -# This invocation of SignalEvent() function informs the caller that invoked
- EFI_MP_SERVICES_PROTOCOL.StartupAllAPs() that either all the APs completed
- the specified task or a timeout occurred. The contents of FailedCpuList
- can be examined to determine which APs did not complete the specified task
- prior to the timeout.
-
- @param[in] This A pointer to the EFI_MP_SERVICES_PROTOCOL
- instance.
- @param[in] Procedure A pointer to the function to be run on
- enabled APs of the system. See type
- EFI_AP_PROCEDURE.
- @param[in] SingleThread If TRUE, then all the enabled APs execute
- the function specified by Procedure one by
- one, in ascending order of processor handle
- number. If FALSE, then all the enabled APs
- execute the function specified by Procedure
- simultaneously.
- @param[in] WaitEvent The event created by the caller with CreateEvent()
- service. If it is NULL, then execute in
- blocking mode. BSP waits until all APs finish
- or TimeoutInMicroseconds expires. If it's
- not NULL, then execute in non-blocking mode.
- BSP requests the function specified by
- Procedure to be started on all the enabled
- APs, and go on executing immediately. If
- all return from Procedure, or TimeoutInMicroseconds
- expires, this event is signaled. The BSP
- can use the CheckEvent() or WaitForEvent()
- services to check the state of event. Type
- EFI_EVENT is defined in CreateEvent() in
- the Unified Extensible Firmware Interface
- Specification.
- @param[in] TimeoutInMicroseconds Indicates the time limit in microseconds for
- APs to return from Procedure, either for
- blocking or non-blocking mode. Zero means
- infinity. If the timeout expires before
- all APs return from Procedure, then Procedure
- on the failed APs is terminated. All enabled
- APs are available for next function assigned
- by EFI_MP_SERVICES_PROTOCOL.StartupAllAPs()
- or EFI_MP_SERVICES_PROTOCOL.StartupThisAP().
- If the timeout expires in blocking mode,
- BSP returns EFI_TIMEOUT. If the timeout
- expires in non-blocking mode, WaitEvent
- is signaled with SignalEvent().
- @param[in] ProcedureArgument The parameter passed into Procedure for
- all APs.
- @param[out] FailedCpuList If NULL, this parameter is ignored. Otherwise,
- if all APs finish successfully, then its
- content is set to NULL. If not all APs
- finish before timeout expires, then its
- content is set to address of the buffer
- holding handle numbers of the failed APs.
- The buffer is allocated by MP Service Protocol,
- and it's the caller's responsibility to
- free the buffer with FreePool() service.
- In blocking mode, it is ready for consumption
- when the call returns. In non-blocking mode,
- it is ready when WaitEvent is signaled. The
- list of failed CPU is terminated by
- END_OF_CPU_LIST.
-
- @retval EFI_SUCCESS In blocking mode, all APs have finished before
- the timeout expired.
- @retval EFI_SUCCESS In non-blocking mode, function has been dispatched
- to all enabled APs.
- @retval EFI_UNSUPPORTED A non-blocking mode request was made after the
- UEFI event EFI_EVENT_GROUP_READY_TO_BOOT was
- signaled.
- @retval EFI_DEVICE_ERROR Caller processor is AP.
- @retval EFI_NOT_STARTED No enabled APs exist in the system.
- @retval EFI_NOT_READY Any enabled APs are busy.
- @retval EFI_TIMEOUT In blocking mode, the timeout expired before
- all enabled APs have finished.
- @retval EFI_INVALID_PARAMETER Procedure is NULL.
-
-**/
-EFI_STATUS
-EFIAPI
-StartupAllAPs (
- IN EFI_MP_SERVICES_PROTOCOL *This,
- IN EFI_AP_PROCEDURE Procedure,
- IN BOOLEAN SingleThread,
- IN EFI_EVENT WaitEvent OPTIONAL,
- IN UINTN TimeoutInMicroseconds,
- IN VOID *ProcedureArgument OPTIONAL,
- OUT UINTN **FailedCpuList OPTIONAL
- );
-
-/**
- This service lets the caller get one enabled AP to execute a caller-provided
- function. The caller can request the BSP to either wait for the completion
- of the AP or just proceed with the next task by using the EFI event mechanism.
- See EFI_MP_SERVICES_PROTOCOL.StartupAllAPs() for more details on non-blocking
- execution support. This service may only be called from the BSP.
-
- This function is used to dispatch one enabled AP to the function specified by
- Procedure passing in the argument specified by ProcedureArgument. If WaitEvent
- is NULL, execution is in blocking mode. The BSP waits until the AP finishes or
- TimeoutInMicroSecondss expires. Otherwise, execution is in non-blocking mode.
- BSP proceeds to the next task without waiting for the AP. If a non-blocking mode
- is requested after the UEFI Event EFI_EVENT_GROUP_READY_TO_BOOT is signaled,
- then EFI_UNSUPPORTED must be returned.
-
- If the timeout specified by TimeoutInMicroseconds expires before the AP returns
- from Procedure, then execution of Procedure by the AP is terminated. The AP is
- available for subsequent calls to EFI_MP_SERVICES_PROTOCOL.StartupAllAPs() and
- EFI_MP_SERVICES_PROTOCOL.StartupThisAP().
-
- @param[in] This A pointer to the EFI_MP_SERVICES_PROTOCOL
- instance.
- @param[in] Procedure A pointer to the function to be run on
- enabled APs of the system. See type
- EFI_AP_PROCEDURE.
- @param[in] ProcessorNumber The handle number of the AP. The range is
- from 0 to the total number of logical
- processors minus 1. The total number of
- logical processors can be retrieved by
- EFI_MP_SERVICES_PROTOCOL.GetNumberOfProcessors().
- @param[in] WaitEvent The event created by the caller with CreateEvent()
- service. If it is NULL, then execute in
- blocking mode. BSP waits until all APs finish
- or TimeoutInMicroseconds expires. If it's
- not NULL, then execute in non-blocking mode.
- BSP requests the function specified by
- Procedure to be started on all the enabled
- APs, and go on executing immediately. If
- all return from Procedure or TimeoutInMicroseconds
- expires, this event is signaled. The BSP
- can use the CheckEvent() or WaitForEvent()
- services to check the state of event. Type
- EFI_EVENT is defined in CreateEvent() in
- the Unified Extensible Firmware Interface
- Specification.
- @param[in] TimeoutInMicroseconds Indicates the time limit in microseconds for
- APs to return from Procedure, either for
- blocking or non-blocking mode. Zero means
- infinity. If the timeout expires before
- all APs return from Procedure, then Procedure
- on the failed APs is terminated. All enabled
- APs are available for next function assigned
- by EFI_MP_SERVICES_PROTOCOL.StartupAllAPs()
- or EFI_MP_SERVICES_PROTOCOL.StartupThisAP().
- If the timeout expires in blocking mode,
- BSP returns EFI_TIMEOUT. If the timeout
- expires in non-blocking mode, WaitEvent
- is signaled with SignalEvent().
- @param[in] ProcedureArgument The parameter passed into Procedure for
- all APs.
- @param[out] Finished If NULL, this parameter is ignored. In
- blocking mode, this parameter is ignored.
- In non-blocking mode, if AP returns from
- Procedure before the timeout expires, its
- content is set to TRUE. Otherwise, the
- value is set to FALSE. The caller can
- determine if the AP returned from Procedure
- by evaluating this value.
-
- @retval EFI_SUCCESS In blocking mode, specified AP finished before
- the timeout expires.
- @retval EFI_SUCCESS In non-blocking mode, the function has been
- dispatched to specified AP.
- @retval EFI_UNSUPPORTED A non-blocking mode request was made after the
- UEFI event EFI_EVENT_GROUP_READY_TO_BOOT was
- signaled.
- @retval EFI_DEVICE_ERROR The calling processor is an AP.
- @retval EFI_TIMEOUT In blocking mode, the timeout expired before
- the specified AP has finished.
- @retval EFI_NOT_READY The specified AP is busy.
- @retval EFI_NOT_FOUND The processor with the handle specified by
- ProcessorNumber does not exist.
- @retval EFI_INVALID_PARAMETER ProcessorNumber specifies the BSP or disabled AP.
- @retval EFI_INVALID_PARAMETER Procedure is NULL.
-
-**/
-EFI_STATUS
-EFIAPI
-StartupThisAP (
- IN EFI_MP_SERVICES_PROTOCOL *This,
- IN EFI_AP_PROCEDURE Procedure,
- IN UINTN ProcessorNumber,
- IN EFI_EVENT WaitEvent OPTIONAL,
- IN UINTN TimeoutInMicroseconds,
- IN VOID *ProcedureArgument OPTIONAL,
- OUT BOOLEAN *Finished OPTIONAL
- );
-
-/**
- This service switches the requested AP to be the BSP from that point onward.
- This service changes the BSP for all purposes. This call can only be performed
- by the current BSP.
-
- This service switches the requested AP to be the BSP from that point onward.
- This service changes the BSP for all purposes. The new BSP can take over the
- execution of the old BSP and continue seamlessly from where the old one left
- off. This service may not be supported after the UEFI Event EFI_EVENT_GROUP_READY_TO_BOOT
- is signaled.
-
- If the BSP cannot be switched prior to the return from this service, then
- EFI_UNSUPPORTED must be returned.
-
- @param[in] This A pointer to the EFI_MP_SERVICES_PROTOCOL instance.
- @param[in] ProcessorNumber The handle number of AP that is to become the new
- BSP. The range is from 0 to the total number of
- logical processors minus 1. The total number of
- logical processors can be retrieved by
- EFI_MP_SERVICES_PROTOCOL.GetNumberOfProcessors().
- @param[in] EnableOldBSP If TRUE, then the old BSP will be listed as an
- enabled AP. Otherwise, it will be disabled.
-
- @retval EFI_SUCCESS BSP successfully switched.
- @retval EFI_UNSUPPORTED Switching the BSP cannot be completed prior to
- this service returning.
- @retval EFI_UNSUPPORTED Switching the BSP is not supported.
- @retval EFI_SUCCESS The calling processor is an AP.
- @retval EFI_NOT_FOUND The processor with the handle specified by
- ProcessorNumber does not exist.
- @retval EFI_INVALID_PARAMETER ProcessorNumber specifies the current BSP or
- a disabled AP.
- @retval EFI_NOT_READY The specified AP is busy.
-
-**/
-EFI_STATUS
-EFIAPI
-SwitchBSP (
- IN EFI_MP_SERVICES_PROTOCOL *This,
- IN UINTN ProcessorNumber,
- IN BOOLEAN EnableOldBSP
- );
-
-/**
- This service lets the caller enable or disable an AP from this point onward.
- This service may only be called from the BSP.
-
- This service allows the caller enable or disable an AP from this point onward.
- The caller can optionally specify the health status of the AP by Health. If
- an AP is being disabled, then the state of the disabled AP is implementation
- dependent. If an AP is enabled, then the implementation must guarantee that a
- complete initialization sequence is performed on the AP, so the AP is in a state
- that is compatible with an MP operating system. This service may not be supported
- after the UEFI Event EFI_EVENT_GROUP_READY_TO_BOOT is signaled.
-
- If the enable or disable AP operation cannot be completed prior to the return
- from this service, then EFI_UNSUPPORTED must be returned.
-
- @param[in] This A pointer to the EFI_MP_SERVICES_PROTOCOL instance.
- @param[in] ProcessorNumber The handle number of AP that is to become the new
- BSP. The range is from 0 to the total number of
- logical processors minus 1. The total number of
- logical processors can be retrieved by
- EFI_MP_SERVICES_PROTOCOL.GetNumberOfProcessors().
- @param[in] EnableAP Specifies the new state for the processor for
- enabled, FALSE for disabled.
- @param[in] HealthFlag If not NULL, a pointer to a value that specifies
- the new health status of the AP. This flag
- corresponds to StatusFlag defined in
- EFI_MP_SERVICES_PROTOCOL.GetProcessorInfo(). Only
- the PROCESSOR_HEALTH_STATUS_BIT is used. All other
- bits are ignored. If it is NULL, this parameter
- is ignored.
-
- @retval EFI_SUCCESS The specified AP was enabled or disabled successfully.
- @retval EFI_UNSUPPORTED Enabling or disabling an AP cannot be completed
- prior to this service returning.
- @retval EFI_UNSUPPORTED Enabling or disabling an AP is not supported.
- @retval EFI_DEVICE_ERROR The calling processor is an AP.
- @retval EFI_NOT_FOUND Processor with the handle specified by ProcessorNumber
- does not exist.
- @retval EFI_INVALID_PARAMETER ProcessorNumber specifies the BSP.
-
-**/
-EFI_STATUS
-EFIAPI
-EnableDisableAP (
- IN EFI_MP_SERVICES_PROTOCOL *This,
- IN UINTN ProcessorNumber,
- IN BOOLEAN EnableAP,
- IN UINT32 *HealthFlag OPTIONAL
- );
-
-/**
- This return the handle number for the calling processor. This service may be
- called from the BSP and APs.
-
- This service returns the processor handle number for the calling processor.
- The returned value is in the range from 0 to the total number of logical
- processors minus 1. The total number of logical processors can be retrieved
- with EFI_MP_SERVICES_PROTOCOL.GetNumberOfProcessors(). This service may be
- called from the BSP and APs. If ProcessorNumber is NULL, then EFI_INVALID_PARAMETER
- is returned. Otherwise, the current processors handle number is returned in
- ProcessorNumber, and EFI_SUCCESS is returned.
-
- @param[in] This A pointer to the EFI_MP_SERVICES_PROTOCOL instance.
- @param[out] ProcessorNumber The handle number of AP that is to become the new
- BSP. The range is from 0 to the total number of
- logical processors minus 1. The total number of
- logical processors can be retrieved by
- EFI_MP_SERVICES_PROTOCOL.GetNumberOfProcessors().
-
- @retval EFI_SUCCESS The current processor handle number was returned
- in ProcessorNumber.
- @retval EFI_INVALID_PARAMETER ProcessorNumber is NULL.
-
-**/
-EFI_STATUS
-EFIAPI
-WhoAmI (
- IN EFI_MP_SERVICES_PROTOCOL *This,
- OUT UINTN *ProcessorNumber
- );
-
-/**
- Terminate AP's task and set it to idle state.
-
- This function terminates AP's task due to timeout by sending INIT-SIPI,
- and sends it to idle state.
-
- @param CpuData the pointer to CPU_DATA_BLOCK of specified AP
-
-**/
-VOID
-ResetProcessorToIdleState (
- IN CPU_DATA_BLOCK *CpuData
- );
-
-/**
- Prepares Startup Code for APs.
- This function prepares Startup Code for APs.
-
- @retval EFI_SUCCESS The APs were started
- @retval EFI_OUT_OF_RESOURCES Cannot allocate memory to start APs
-
-**/
-EFI_STATUS
-PrepareAPStartupCode (
- VOID
- );
-
-/**
- Free the code buffer of startup AP.
-
-**/
-VOID
-FreeApStartupCode (
- VOID
- );
-
-/**
- Resets the Application Processor and directs it to jump to the
- specified routine.
-
- The processor jumps to this code in flat mode, but the processor's
- stack is not initialized.
-
- @param ProcessorId the AP of ProcessorId was reset
-**/
-VOID
-ResetApStackless (
- IN UINT32 ProcessorId
- );
-
-#endif // _CPU_MP_H_
-
diff --git a/UefiCpuPkg/CpuDxe/Ia32/CpuAsm.S b/UefiCpuPkg/CpuDxe/Ia32/CpuAsm.S deleted file mode 100644 index e034bc2e2e..0000000000 --- a/UefiCpuPkg/CpuDxe/Ia32/CpuAsm.S +++ /dev/null @@ -1,57 +0,0 @@ -#------------------------------------------------------------------------------
-#*
-#* Copyright (c) 2006 - 2013, Intel Corporation. All rights reserved.<BR>
-#* This program and the accompanying materials
-#* are licensed and made available under the terms and conditions of the BSD License
-#* which accompanies this distribution. The full text of the license may be found at
-#* http://opensource.org/licenses/bsd-license.php
-#*
-#* THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
-#* WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
-#*
-#* CpuAsm.S
-#*
-#* Abstract:
-#*
-#------------------------------------------------------------------------------
-
-
-#.MMX
-#.XMM
-
-#------------------------------------------------------------------------------
-# VOID
-# SetCodeSelector (
-# UINT16 Selector
-# );
-#------------------------------------------------------------------------------
-ASM_GLOBAL ASM_PFX(SetCodeSelector)
-ASM_PFX(SetCodeSelector):
- movl 4(%esp), %ecx
- subl $0x10, %esp
- leal setCodeSelectorLongJump, %eax
- movl %eax, (%esp)
- movw %cx, 4(%esp)
- .byte 0xFF, 0x2C, 0x24 # jmp *(%esp) note:(FWORD jmp)
-setCodeSelectorLongJump:
- addl $0x10, %esp
- ret
-
-#------------------------------------------------------------------------------
-# VOID
-# SetDataSelectors (
-# UINT16 Selector
-# );
-#------------------------------------------------------------------------------
-ASM_GLOBAL ASM_PFX(SetDataSelectors)
-ASM_PFX(SetDataSelectors):
- movl 4(%esp), %ecx
- movw %cx, %ss
- movw %cx, %ds
- movw %cx, %es
- movw %cx, %fs
- movw %cx, %gs
- ret
-
-#END
-
diff --git a/UefiCpuPkg/CpuDxe/Ia32/CpuAsm.asm b/UefiCpuPkg/CpuDxe/Ia32/CpuAsm.asm deleted file mode 100644 index 7f8f0d6f3a..0000000000 --- a/UefiCpuPkg/CpuDxe/Ia32/CpuAsm.asm +++ /dev/null @@ -1,58 +0,0 @@ - TITLE CpuAsm.asm:
-;------------------------------------------------------------------------------
-;*
-;* Copyright (c) 2006 - 2013, Intel Corporation. All rights reserved.<BR>
-;* This program and the accompanying materials
-;* are licensed and made available under the terms and conditions of the BSD License
-;* which accompanies this distribution. The full text of the license may be found at
-;* http://opensource.org/licenses/bsd-license.php
-;*
-;* THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
-;* WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
-;*
-;* CpuAsm.asm
-;*
-;* Abstract:
-;*
-;------------------------------------------------------------------------------
-
- .686
- .model flat,C
- .code
-
-;------------------------------------------------------------------------------
-; VOID
-; SetCodeSelector (
-; UINT16 Selector
-; );
-;------------------------------------------------------------------------------
-SetCodeSelector PROC PUBLIC
- mov ecx, [esp+4]
- sub esp, 0x10
- lea eax, setCodeSelectorLongJump
- mov [esp], eax
- mov [esp+4], cx
- jmp fword ptr [esp]
-setCodeSelectorLongJump:
- add esp, 0x10
- ret
-SetCodeSelector ENDP
-
-;------------------------------------------------------------------------------
-; VOID
-; SetDataSelectors (
-; UINT16 Selector
-; );
-;------------------------------------------------------------------------------
-SetDataSelectors PROC PUBLIC
- mov ecx, [esp+4]
- mov ss, cx
- mov ds, cx
- mov es, cx
- mov fs, cx
- mov gs, cx
- ret
-SetDataSelectors ENDP
-
-
-END
diff --git a/UefiCpuPkg/CpuDxe/Ia32/MpAsm.asm b/UefiCpuPkg/CpuDxe/Ia32/MpAsm.asm deleted file mode 100644 index 09579f251e..0000000000 --- a/UefiCpuPkg/CpuDxe/Ia32/MpAsm.asm +++ /dev/null @@ -1,76 +0,0 @@ -;------------------------------------------------------------------------------
-;
-; Copyright (c) 2006 - 2014, Intel Corporation. All rights reserved.<BR>
-; This program and the accompanying materials
-; are licensed and made available under the terms and conditions of the BSD License
-; which accompanies this distribution. The full text of the license may be found at
-; http://opensource.org/licenses/bsd-license.php.
-;
-; THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
-; WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
-;
-;------------------------------------------------------------------------------
-
-.686
-.xmm
-.model flat, C
-
-extern mTopOfApCommonStack:DWORD
-extern ApEntryPointInC:PROC
-
-.code
-
-;
-; This lock only allows one AP to use the mTopOfApCommonStack stack at a time
-;
-ApStackLock dd 0
-
-;.code
-
-;------------------------------------------------------------------------------
-; VOID
-; EFIAPI
-; AsmApEntryPoint (
-; VOID
-; );
-;------------------------------------------------------------------------------
-AsmApEntryPoint PROC
-
- cli
-AsmApEntryPointAcquireLock:
-lock bts dword ptr [ApStackLock], 0
- pause
- jc AsmApEntryPointAcquireLock
-
- mov esp, [mTopOfApCommonStack]
- call ApEntryPointInC
-
- cli
-
-lock btc dword ptr [ApStackLock], 0
-
- mov eax, 100h
-AsmApEntryPointShareLock:
- pause
- dec eax
- jnz AsmApEntryPointShareLock
-
- jmp AsmApEntryPoint
-
-AsmApEntryPoint ENDP
-
-;------------------------------------------------------------------------------
-; VOID
-; EFIAPI
-; AsmApDoneWithCommonStack (
-; VOID
-; );
-;------------------------------------------------------------------------------
-AsmApDoneWithCommonStack PROC PUBLIC
-
-lock btc dword ptr [ApStackLock], 0
- ret
-
-AsmApDoneWithCommonStack ENDP
-
-END
diff --git a/UefiCpuPkg/CpuDxe/Ia32/MpAsm.nasm b/UefiCpuPkg/CpuDxe/Ia32/MpAsm.nasm deleted file mode 100644 index c47cdcef54..0000000000 --- a/UefiCpuPkg/CpuDxe/Ia32/MpAsm.nasm +++ /dev/null @@ -1,68 +0,0 @@ -;------------------------------------------------------------------------------
-;
-; Copyright (c) 2006 - 2014, Intel Corporation. All rights reserved.<BR>
-; This program and the accompanying materials
-; are licensed and made available under the terms and conditions of the BSD License
-; which accompanies this distribution. The full text of the license may be found at
-; http://opensource.org/licenses/bsd-license.php.
-;
-; THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
-; WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
-;
-;------------------------------------------------------------------------------
-
-extern ASM_PFX(mTopOfApCommonStack)
-extern ASM_PFX(ApEntryPointInC)
-
-SECTION .data
-
-;
-; This lock only allows one AP to use the mTopOfApCommonStack stack at a time
-;
-ApStackLock:
- dd 0
-
-SECTION .text
-
-;------------------------------------------------------------------------------
-; VOID
-; EFIAPI
-; AsmApEntryPoint (
-; VOID
-; );
-;------------------------------------------------------------------------------
-global ASM_PFX(AsmApEntryPoint)
-ASM_PFX(AsmApEntryPoint):
- cli
-AsmApEntryPointAcquireLock:
-lock bts dword [ApStackLock], 0
- pause
- jc AsmApEntryPointAcquireLock
-
- mov esp, [ASM_PFX(mTopOfApCommonStack)]
- call ASM_PFX(ApEntryPointInC)
-
- cli
-
-lock btc dword [ApStackLock], 0
-
- mov eax, 0x100
-AsmApEntryPointShareLock:
- pause
- dec eax
- jnz AsmApEntryPointShareLock
-
- jmp ASM_PFX(AsmApEntryPoint)
-
-;------------------------------------------------------------------------------
-; VOID
-; EFIAPI
-; AsmApDoneWithCommonStack (
-; VOID
-; );
-;------------------------------------------------------------------------------
-global ASM_PFX(AsmApDoneWithCommonStack)
-ASM_PFX(AsmApDoneWithCommonStack):
-lock btc dword [ApStackLock], 0
- ret
-
diff --git a/UefiCpuPkg/CpuDxe/X64/CpuAsm.S b/UefiCpuPkg/CpuDxe/X64/CpuAsm.S deleted file mode 100644 index e82cadf369..0000000000 --- a/UefiCpuPkg/CpuDxe/X64/CpuAsm.S +++ /dev/null @@ -1,60 +0,0 @@ -# TITLE CpuAsm.S:
-
-#------------------------------------------------------------------------------
-#*
-#* Copyright (c) 2008 - 2013, Intel Corporation. All rights reserved.<BR>
-#* This program and the accompanying materials
-#* are licensed and made available under the terms and conditions of the BSD License
-#* which accompanies this distribution. The full text of the license may be found at
-#* http://opensource.org/licenses/bsd-license.php
-#*
-#* THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
-#* WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
-#*
-#* CpuAsm.S
-#*
-#* Abstract:
-#*
-#------------------------------------------------------------------------------
-
-
-#text SEGMENT
-
-
-#------------------------------------------------------------------------------
-# VOID
-# SetCodeSelector (
-# UINT16 Selector
-# );
-#------------------------------------------------------------------------------
-ASM_GLOBAL ASM_PFX(SetCodeSelector)
-ASM_PFX(SetCodeSelector):
- subq $0x10, %rsp
- leaq L_setCodeSelectorLongJump(%rip), %rax
- movq %rax, (%rsp)
- movw %cx, 4(%rsp)
- .byte 0xFF, 0x2C, 0x24 # jmp (%rsp) note:fword jmp
-L_setCodeSelectorLongJump:
- addq $0x10, %rsp
- ret
-
-#------------------------------------------------------------------------------
-# VOID
-# SetDataSelectors (
-# UINT16 Selector
-# );
-#------------------------------------------------------------------------------
-ASM_GLOBAL ASM_PFX(SetDataSelectors)
-ASM_PFX(SetDataSelectors):
- movw %cx, %ss
- movw %cx, %ds
- movw %cx, %es
- movw %cx, %fs
- movw %cx, %gs
- ret
-
-#text ENDS
-
-#END
-
-
diff --git a/UefiCpuPkg/CpuDxe/X64/CpuAsm.asm b/UefiCpuPkg/CpuDxe/X64/CpuAsm.asm deleted file mode 100644 index c71b06a81e..0000000000 --- a/UefiCpuPkg/CpuDxe/X64/CpuAsm.asm +++ /dev/null @@ -1,54 +0,0 @@ - TITLE CpuAsm.asm:
-;------------------------------------------------------------------------------
-;*
-;* Copyright (c) 2008 - 2013, Intel Corporation. All rights reserved.<BR>
-;* This program and the accompanying materials
-;* are licensed and made available under the terms and conditions of the BSD License
-;* which accompanies this distribution. The full text of the license may be found at
-;* http://opensource.org/licenses/bsd-license.php
-;*
-;* THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
-;* WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
-;*
-;* CpuAsm.asm
-;*
-;* Abstract:
-;*
-;------------------------------------------------------------------------------
-
- .code
-
-;------------------------------------------------------------------------------
-; VOID
-; SetCodeSelector (
-; UINT16 Selector
-; );
-;------------------------------------------------------------------------------
-SetCodeSelector PROC PUBLIC
- sub rsp, 0x10
- lea rax, setCodeSelectorLongJump
- mov [rsp], rax
- mov [rsp+4], cx
- jmp fword ptr [rsp]
-setCodeSelectorLongJump:
- add rsp, 0x10
- ret
-SetCodeSelector ENDP
-
-;------------------------------------------------------------------------------
-; VOID
-; SetDataSelectors (
-; UINT16 Selector
-; );
-;------------------------------------------------------------------------------
-SetDataSelectors PROC PUBLIC
- mov ss, cx
- mov ds, cx
- mov es, cx
- mov fs, cx
- mov gs, cx
- ret
-SetDataSelectors ENDP
-
-END
-
diff --git a/UefiCpuPkg/CpuDxe/X64/MpAsm.asm b/UefiCpuPkg/CpuDxe/X64/MpAsm.asm deleted file mode 100644 index 308de51330..0000000000 --- a/UefiCpuPkg/CpuDxe/X64/MpAsm.asm +++ /dev/null @@ -1,76 +0,0 @@ -;------------------------------------------------------------------------------
-;
-; Copyright (c) 2006 - 2014, Intel Corporation. All rights reserved.<BR>
-; This program and the accompanying materials
-; are licensed and made available under the terms and conditions of the BSD License
-; which accompanies this distribution. The full text of the license may be found at
-; http://opensource.org/licenses/bsd-license.php.
-;
-; THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
-; WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
-;
-;------------------------------------------------------------------------------
-
-#include <Base.h>
-
-extern ASM_PFX(mTopOfApCommonStack):QWORD
-extern ASM_PFX(ApEntryPointInC):PROC
-
-.data
-
-;
-; This lock only allows one AP to use the mTopOfApCommonStack stack at a time
-;
-ApStackLock:
- dd 0
-
-.code
-
-;------------------------------------------------------------------------------
-; VOID
-; EFIAPI
-; AsmApEntryPoint (
-; VOID
-; );
-;------------------------------------------------------------------------------
-ASM_PFX(AsmApEntryPoint) PROC PUBLIC
-
- cli
-AsmApEntryPointAcquireLock:
-lock bts dword ptr [ApStackLock], 0
- pause
- jc AsmApEntryPointAcquireLock
-
- mov rsp, [ASM_PFX(mTopOfApCommonStack)]
- call ASM_PFX(ApEntryPointInC)
-
- cli
-
-lock btc dword ptr [ApStackLock], 0
-
- mov eax, 100h
-AsmApEntryPointShareLock:
- pause
- dec eax
- jnz AsmApEntryPointShareLock
-
- jmp ASM_PFX(AsmApEntryPoint)
-
-ASM_PFX(AsmApEntryPoint) ENDP
-
-;------------------------------------------------------------------------------
-; VOID
-; EFIAPI
-; AsmApDoneWithCommonStack (
-; VOID
-; );
-;------------------------------------------------------------------------------
-ASM_PFX(AsmApDoneWithCommonStack) PROC PUBLIC
-
-lock btc dword ptr [ApStackLock], 0
- ret
-
-ASM_PFX(AsmApDoneWithCommonStack) ENDP
-
-END
-
diff --git a/UefiCpuPkg/CpuDxe/X64/MpAsm.nasm b/UefiCpuPkg/CpuDxe/X64/MpAsm.nasm deleted file mode 100644 index e3dc248002..0000000000 --- a/UefiCpuPkg/CpuDxe/X64/MpAsm.nasm +++ /dev/null @@ -1,70 +0,0 @@ -;------------------------------------------------------------------------------
-;
-; Copyright (c) 2006 - 2014, Intel Corporation. All rights reserved.<BR>
-; This program and the accompanying materials
-; are licensed and made available under the terms and conditions of the BSD License
-; which accompanies this distribution. The full text of the license may be found at
-; http://opensource.org/licenses/bsd-license.php.
-;
-; THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
-; WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
-;
-;------------------------------------------------------------------------------
-
-extern ASM_PFX(mTopOfApCommonStack)
-extern ASM_PFX(ApEntryPointInC)
-
-DEFAULT REL
-
-SECTION .data
-
-;
-; This lock only allows one AP to use the mTopOfApCommonStack stack at a time
-;
-ApStackLock:
- dd 0
-
-SECTION .text
-
-;------------------------------------------------------------------------------
-; VOID
-; EFIAPI
-; AsmApEntryPoint (
-; VOID
-; );
-;------------------------------------------------------------------------------
-global ASM_PFX(AsmApEntryPoint)
-ASM_PFX(AsmApEntryPoint):
- cli
-AsmApEntryPointAcquireLock:
-lock bts dword [ApStackLock], 0
- pause
- jc AsmApEntryPointAcquireLock
-
- mov rsp, [ASM_PFX(mTopOfApCommonStack)]
- call ASM_PFX(ApEntryPointInC)
-
- cli
-
-lock btc dword [ApStackLock], 0
-
- mov eax, 0x100
-AsmApEntryPointShareLock:
- pause
- dec eax
- jnz AsmApEntryPointShareLock
-
- jmp ASM_PFX(AsmApEntryPoint)
-
-;------------------------------------------------------------------------------
-; VOID
-; EFIAPI
-; AsmApDoneWithCommonStack (
-; VOID
-; );
-;------------------------------------------------------------------------------
-global ASM_PFX(AsmApDoneWithCommonStack)
-ASM_PFX(AsmApDoneWithCommonStack):
-lock btc dword [ApStackLock], 0
- ret
-
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