diff options
Diffstat (limited to 'IntelFsp2WrapperPkg/Library/BaseFspWrapperApiLib/FspWrapperApiLib.c')
| -rw-r--r-- | IntelFsp2WrapperPkg/Library/BaseFspWrapperApiLib/FspWrapperApiLib.c | 203 |
1 files changed, 203 insertions, 0 deletions
diff --git a/IntelFsp2WrapperPkg/Library/BaseFspWrapperApiLib/FspWrapperApiLib.c b/IntelFsp2WrapperPkg/Library/BaseFspWrapperApiLib/FspWrapperApiLib.c new file mode 100644 index 000000000..8cf136fe1 --- /dev/null +++ b/IntelFsp2WrapperPkg/Library/BaseFspWrapperApiLib/FspWrapperApiLib.c @@ -0,0 +1,203 @@ +/** @file
+ Provide FSP API related function.
+
+ Copyright (c) 2014 - 2016, 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 <PiPei.h>
+
+#include <Library/FspWrapperApiLib.h>
+#include <Library/BaseLib.h>
+#include <Library/BaseMemoryLib.h>
+
+/**
+ Wrapper for a thunk to transition from long mode to compatibility mode to execute 32-bit code and then transit back to
+ long mode.
+
+ @param[in] Function The 32bit code entry to be executed.
+ @param[in] Param1 The first parameter to pass to 32bit code.
+ @param[in] Param2 The second parameter to pass to 32bit code.
+
+ @return EFI_STATUS.
+**/
+EFI_STATUS
+Execute32BitCode (
+ IN UINT64 Function,
+ IN UINT64 Param1,
+ IN UINT64 Param2
+ );
+
+/**
+ Find FSP header pointer.
+
+ @param[in] FlashFvFspBase Flash address of FSP FV.
+
+ @return FSP header pointer.
+**/
+FSP_INFO_HEADER *
+EFIAPI
+FspFindFspHeader (
+ IN EFI_PHYSICAL_ADDRESS FlashFvFspBase
+ )
+{
+ UINT8 *CheckPointer;
+
+ CheckPointer = (UINT8 *) (UINTN) FlashFvFspBase;
+
+ if (((EFI_FIRMWARE_VOLUME_HEADER *)CheckPointer)->Signature != EFI_FVH_SIGNATURE) {
+ return NULL;
+ }
+
+ if (((EFI_FIRMWARE_VOLUME_HEADER *)CheckPointer)->ExtHeaderOffset != 0) {
+ CheckPointer = CheckPointer + ((EFI_FIRMWARE_VOLUME_HEADER *)CheckPointer)->ExtHeaderOffset;
+ CheckPointer = CheckPointer + ((EFI_FIRMWARE_VOLUME_EXT_HEADER *)CheckPointer)->ExtHeaderSize;
+ CheckPointer = (UINT8 *) ALIGN_POINTER (CheckPointer, 8);
+ } else {
+ CheckPointer = CheckPointer + ((EFI_FIRMWARE_VOLUME_HEADER *)CheckPointer)->HeaderLength;
+ }
+
+
+ CheckPointer = CheckPointer + sizeof (EFI_FFS_FILE_HEADER);
+
+ if (((EFI_RAW_SECTION *)CheckPointer)->Type != EFI_SECTION_RAW) {
+ return NULL;
+ }
+
+ CheckPointer = CheckPointer + sizeof (EFI_RAW_SECTION);
+
+ return (FSP_INFO_HEADER *)CheckPointer;
+}
+
+/**
+ Call FSP API - FspNotifyPhase.
+
+ @param[in] NotifyPhaseParams Address pointer to the NOTIFY_PHASE_PARAMS structure.
+
+ @return EFI status returned by FspNotifyPhase API.
+**/
+EFI_STATUS
+EFIAPI
+CallFspNotifyPhase (
+ IN NOTIFY_PHASE_PARAMS *NotifyPhaseParams
+ )
+{
+ FSP_INFO_HEADER *FspHeader;
+ FSP_NOTIFY_PHASE NotifyPhaseApi;
+ EFI_STATUS Status;
+ BOOLEAN InterruptState;
+
+ FspHeader = (FSP_INFO_HEADER *)FspFindFspHeader (PcdGet32 (PcdFspsBaseAddress));
+ if (FspHeader == NULL) {
+ return EFI_DEVICE_ERROR;
+ }
+
+ NotifyPhaseApi = (FSP_NOTIFY_PHASE)(UINTN)(FspHeader->ImageBase + FspHeader->NotifyPhaseEntryOffset);
+ InterruptState = SaveAndDisableInterrupts ();
+ Status = Execute32BitCode ((UINTN)NotifyPhaseApi, (UINTN)NotifyPhaseParams, (UINTN)NULL);
+ SetInterruptState (InterruptState);
+
+ return Status;
+}
+
+/**
+ Call FSP API - FspMemoryInit.
+
+ @param[in] FspmUpdDataPtr Address pointer to the FSP_MEMORY_INIT_PARAMS structure.
+ @param[out] HobListPtr Address of the HobList pointer.
+
+ @return EFI status returned by FspMemoryInit API.
+**/
+EFI_STATUS
+EFIAPI
+CallFspMemoryInit (
+ IN VOID *FspmUpdDataPtr,
+ OUT VOID **HobListPtr
+ )
+{
+ FSP_INFO_HEADER *FspHeader;
+ FSP_MEMORY_INIT FspMemoryInitApi;
+ EFI_STATUS Status;
+ BOOLEAN InterruptState;
+
+ FspHeader = (FSP_INFO_HEADER *)FspFindFspHeader (PcdGet32 (PcdFspmBaseAddress));
+ if (FspHeader == NULL) {
+ return EFI_DEVICE_ERROR;
+ }
+
+ FspMemoryInitApi = (FSP_MEMORY_INIT)(UINTN)(FspHeader->ImageBase + FspHeader->FspMemoryInitEntryOffset);
+ InterruptState = SaveAndDisableInterrupts ();
+ Status = Execute32BitCode ((UINTN)FspMemoryInitApi, (UINTN)FspmUpdDataPtr, (UINTN)HobListPtr);
+ SetInterruptState (InterruptState);
+
+ return Status;
+}
+
+/**
+ Call FSP API - TempRamExit.
+
+ @param[in] TempRamExitParam Address pointer to the TempRamExit parameters structure.
+
+ @return EFI status returned by TempRamExit API.
+**/
+EFI_STATUS
+EFIAPI
+CallTempRamExit (
+ IN VOID *TempRamExitParam
+ )
+{
+ FSP_INFO_HEADER *FspHeader;
+ FSP_TEMP_RAM_EXIT TempRamExitApi;
+ EFI_STATUS Status;
+ BOOLEAN InterruptState;
+
+ FspHeader = (FSP_INFO_HEADER *)FspFindFspHeader (PcdGet32 (PcdFspmBaseAddress));
+ if (FspHeader == NULL) {
+ return EFI_DEVICE_ERROR;
+ }
+
+ TempRamExitApi = (FSP_TEMP_RAM_EXIT)(UINTN)(FspHeader->ImageBase + FspHeader->TempRamExitEntryOffset);
+ InterruptState = SaveAndDisableInterrupts ();
+ Status = Execute32BitCode ((UINTN)TempRamExitApi, (UINTN)TempRamExitParam, (UINTN)NULL);
+ SetInterruptState (InterruptState);
+
+ return Status;
+}
+
+/**
+ Call FSP API - FspSiliconInit.
+
+ @param[in] FspsUpdDataPtr Address pointer to the Silicon Init parameters structure.
+
+ @return EFI status returned by FspSiliconInit API.
+**/
+EFI_STATUS
+EFIAPI
+CallFspSiliconInit (
+ IN VOID *FspsUpdDataPtr
+ )
+{
+ FSP_INFO_HEADER *FspHeader;
+ FSP_SILICON_INIT FspSiliconInitApi;
+ EFI_STATUS Status;
+ BOOLEAN InterruptState;
+
+ FspHeader = (FSP_INFO_HEADER *)FspFindFspHeader (PcdGet32 (PcdFspsBaseAddress));
+ if (FspHeader == NULL) {
+ return EFI_DEVICE_ERROR;
+ }
+
+ FspSiliconInitApi = (FSP_SILICON_INIT)(UINTN)(FspHeader->ImageBase + FspHeader->FspSiliconInitEntryOffset);
+ InterruptState = SaveAndDisableInterrupts ();
+ Status = Execute32BitCode ((UINTN)FspSiliconInitApi, (UINTN)FspsUpdDataPtr, (UINTN)NULL);
+ SetInterruptState (InterruptState);
+
+ return Status;
+}
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