diff options
Diffstat (limited to 'IntelFspPkg/FspSecCore/SecMain.c')
| -rw-r--r-- | IntelFspPkg/FspSecCore/SecMain.c | 212 |
1 files changed, 0 insertions, 212 deletions
diff --git a/IntelFspPkg/FspSecCore/SecMain.c b/IntelFspPkg/FspSecCore/SecMain.c deleted file mode 100644 index 99acefaefa..0000000000 --- a/IntelFspPkg/FspSecCore/SecMain.c +++ /dev/null @@ -1,212 +0,0 @@ -/** @file
-
- Copyright (c) 2014 - 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 "SecMain.h"
-#include "SecFsp.h"
-
-EFI_PEI_TEMPORARY_RAM_SUPPORT_PPI gSecTemporaryRamSupportPpi = {
- SecTemporaryRamSupport
-};
-
-EFI_PEI_PPI_DESCRIPTOR mPeiSecPlatformInformationPpi[] = {
- {
- (EFI_PEI_PPI_DESCRIPTOR_PPI | EFI_PEI_PPI_DESCRIPTOR_TERMINATE_LIST),
- &gEfiTemporaryRamSupportPpiGuid,
- &gSecTemporaryRamSupportPpi
- }
-};
-
-//
-// These are IDT entries pointing to 08:FFFFFFE4h.
-//
-UINT64 mIdtEntryTemplate = 0xffff8e000008ffe4ULL;
-
-/**
-
- Entry point to the C language phase of SEC. After the SEC assembly
- code has initialized some temporary memory and set up the stack,
- the control is transferred to this function.
-
-
- @param[in] SizeOfRam Size of the temporary memory available for use.
- @param[in] TempRamBase Base address of tempory ram
- @param[in] BootFirmwareVolume Base address of the Boot Firmware Volume.
- @param[in] PeiCore PeiCore entry point.
- @param[in] BootLoaderStack BootLoader stack.
- @param[in] ApiIdx the index of API.
-
- @return This function never returns.
-
-**/
-VOID
-EFIAPI
-SecStartup (
- IN UINT32 SizeOfRam,
- IN UINT32 TempRamBase,
- IN VOID *BootFirmwareVolume,
- IN PEI_CORE_ENTRY PeiCore,
- IN UINT32 BootLoaderStack,
- IN UINT32 ApiIdx
- )
-{
- EFI_SEC_PEI_HAND_OFF SecCoreData;
- IA32_DESCRIPTOR IdtDescriptor;
- SEC_IDT_TABLE IdtTableInStack;
- UINT32 Index;
- FSP_GLOBAL_DATA PeiFspData;
- UINT64 ExceptionHandler;
-
- //
- // Process all libraries constructor function linked to SecCore.
- //
- ProcessLibraryConstructorList ();
-
- //
- // Initialize floating point operating environment
- // to be compliant with UEFI spec.
- //
- InitializeFloatingPointUnits ();
-
-
- // |-------------------|---->
- // |Idt Table |
- // |-------------------|
- // |PeiService Pointer | PeiStackSize
- // |-------------------|
- // | |
- // | Stack |
- // |-------------------|---->
- // | |
- // | |
- // | Heap | PeiTemporayRamSize
- // | |
- // | |
- // |-------------------|----> TempRamBase
- IdtTableInStack.PeiService = NULL;
- ExceptionHandler = FspGetExceptionHandler(mIdtEntryTemplate);
- for (Index = 0; Index < SEC_IDT_ENTRY_COUNT; Index ++) {
- CopyMem ((VOID*)&IdtTableInStack.IdtTable[Index], (VOID*)&ExceptionHandler, sizeof (UINT64));
- }
-
- IdtDescriptor.Base = (UINTN) &IdtTableInStack.IdtTable;
- IdtDescriptor.Limit = (UINT16)(sizeof (IdtTableInStack.IdtTable) - 1);
-
- AsmWriteIdtr (&IdtDescriptor);
-
- //
- // Initialize the global FSP data region
- //
- FspGlobalDataInit (&PeiFspData, BootLoaderStack, (UINT8)ApiIdx);
-
- //
- // Update the base address and length of Pei temporary memory
- //
- SecCoreData.DataSize = sizeof (EFI_SEC_PEI_HAND_OFF);
- SecCoreData.BootFirmwareVolumeBase = BootFirmwareVolume;
- SecCoreData.BootFirmwareVolumeSize = (UINT32)((EFI_FIRMWARE_VOLUME_HEADER *)BootFirmwareVolume)->FvLength;
- SecCoreData.TemporaryRamBase = (VOID*)(UINTN) TempRamBase;
- SecCoreData.TemporaryRamSize = SizeOfRam;
- SecCoreData.PeiTemporaryRamBase = SecCoreData.TemporaryRamBase;
- SecCoreData.PeiTemporaryRamSize = SizeOfRam >> 1;
- SecCoreData.StackBase = (VOID*)(UINTN)(TempRamBase + SecCoreData.PeiTemporaryRamSize);
- SecCoreData.StackSize = SizeOfRam >> 1;
-
- //
- // Call PeiCore Entry
- //
- PeiCore (&SecCoreData, mPeiSecPlatformInformationPpi);
-
- //
- // Should never be here
- //
- CpuDeadLoop ();
-}
-
-/**
- This service of the TEMPORARY_RAM_SUPPORT_PPI that migrates temporary RAM into
- permanent memory.
-
- @param[in] PeiServices Pointer to the PEI Services Table.
- @param[in] TemporaryMemoryBase Source Address in temporary memory from which the SEC or PEIM will copy the
- Temporary RAM contents.
- @param[in] PermanentMemoryBase Destination Address in permanent memory into which the SEC or PEIM will copy the
- Temporary RAM contents.
- @param[in] CopySize Amount of memory to migrate from temporary to permanent memory.
-
- @retval EFI_SUCCESS The data was successfully returned.
- @retval EFI_INVALID_PARAMETER PermanentMemoryBase + CopySize > TemporaryMemoryBase when
- TemporaryMemoryBase > PermanentMemoryBase.
-
-**/
-EFI_STATUS
-EFIAPI
-SecTemporaryRamSupport (
- IN CONST EFI_PEI_SERVICES **PeiServices,
- IN EFI_PHYSICAL_ADDRESS TemporaryMemoryBase,
- IN EFI_PHYSICAL_ADDRESS PermanentMemoryBase,
- IN UINTN CopySize
- )
-{
- IA32_DESCRIPTOR IdtDescriptor;
- VOID* OldHeap;
- VOID* NewHeap;
- VOID* OldStack;
- VOID* NewStack;
-
- OldHeap = (VOID*)(UINTN)TemporaryMemoryBase;
- NewHeap = (VOID*)((UINTN)PermanentMemoryBase + CopySize / 2);
-
- OldStack = (VOID*)((UINTN)TemporaryMemoryBase + CopySize / 2);
- NewStack = (VOID*)(UINTN)PermanentMemoryBase;
-
- //
- // Migrate Heap
- //
- CopyMem (NewHeap, OldHeap, CopySize / 2);
-
- //
- // Migrate Stack
- //
- CopyMem (NewStack, OldStack, CopySize / 2);
-
-
- //
- // We need *not* fix the return address because currently,
- // The PeiCore is executed in flash.
- //
-
- //
- // Rebase IDT table in permanent memory
- //
- AsmReadIdtr (&IdtDescriptor);
- IdtDescriptor.Base = IdtDescriptor.Base - (UINTN)OldStack + (UINTN)NewStack;
-
- AsmWriteIdtr (&IdtDescriptor);
-
- //
- // Fixed the FSP data pointer
- //
- FspDataPointerFixUp ((UINTN)NewStack - (UINTN)OldStack);
-
- //
- // SecSwitchStack function must be invoked after the memory migration
- // immediatly, also we need fixup the stack change caused by new call into
- // permenent memory.
- //
- SecSwitchStack (
- (UINT32) (UINTN) OldStack,
- (UINT32) (UINTN) NewStack
- );
-
- return EFI_SUCCESS;
-}
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