diff options
| author | jyao1 <jyao1> | 2014-07-24 06:52:43 +0000 |
|---|---|---|
| committer | jyao1 <jyao1@6f19259b-4bc3-4df7-8a09-765794883524> | 2014-07-24 06:52:43 +0000 |
| commit | a33a2f62218e6e49a25d63474b7fe423d8ee4b71 (patch) | |
| tree | ca8e4dd491a71f4a7e36fbc17c5e95276d555b43 /IntelFspWrapperPkg/Library/BaseFspApiLib/FspApiLib.c | |
| parent | 34717ef034ed275a15683dafd29cb518af50fff0 (diff) | |
Add IntelFspWrapper to support boot EDKII on FSP bin.
Contributed-under: TianoCore Contribution Agreement 1.0
Signed off by: Jiewen Yao <jiewen.yao@intel.com>
Reviewed by: Ravi Rangarajan <ravi.p.rangarajan@intel.com>
Reviewed by: Maurice Ma <maurice.ma@intel.com>
Reviewed by: Giri Mudusuru <giri.p.mudusuru@intel.com>
Reviewed by: Liming Gao <liming.gao@intel.com>
git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@15676 6f19259b-4bc3-4df7-8a09-765794883524
Diffstat (limited to 'IntelFspWrapperPkg/Library/BaseFspApiLib/FspApiLib.c')
| -rw-r--r-- | IntelFspWrapperPkg/Library/BaseFspApiLib/FspApiLib.c | 127 |
1 files changed, 127 insertions, 0 deletions
diff --git a/IntelFspWrapperPkg/Library/BaseFspApiLib/FspApiLib.c b/IntelFspWrapperPkg/Library/BaseFspApiLib/FspApiLib.c new file mode 100644 index 0000000000..590238e391 --- /dev/null +++ b/IntelFspWrapperPkg/Library/BaseFspApiLib/FspApiLib.c @@ -0,0 +1,127 @@ +/** @file
+ Provide FSP API related function.
+
+ Copyright (c) 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 <PiPei.h>
+
+#include <Guid/FspHeaderFile.h>
+
+#include <Library/FspApiLib.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.
+
+ @return FSP_STATUS.
+**/
+FSP_STATUS
+Execute32BitCode (
+ IN UINT64 Function,
+ IN UINT64 Param1
+ );
+
+/**
+ 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;
+ }
+
+ if (!CompareGuid (&((EFI_FFS_FILE_HEADER *)CheckPointer)->Name, &gFspHeaderFileGuid)) {
+ return NULL;
+ }
+
+ 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 - FspInit.
+
+ @param[in] FspHeader FSP header pointer.
+ @param[in] FspInitParams Address pointer to the FSP_INIT_PARAMS structure.
+
+ @return FSP status returned by FspInit API.
+**/
+FSP_STATUS
+EFIAPI
+CallFspInit (
+ IN FSP_INFO_HEADER *FspHeader,
+ IN FSP_INIT_PARAMS *FspInitParams
+ )
+{
+ FSP_FSP_INIT FspInitApi;
+ FSP_STATUS FspStatus;
+
+ FspInitApi = (FSP_FSP_INIT)(UINTN)(FspHeader->ImageBase + FspHeader->FspInitEntryOffset);
+ FspStatus = Execute32BitCode ((UINTN)FspInitApi, (UINTN)FspInitParams);
+
+ return FspStatus;
+}
+
+/**
+ Call FSP API - FspNotifyPhase.
+
+ @param[in] FspHeader FSP header pointer.
+ @param[in] NotifyPhaseParams Address pointer to the NOTIFY_PHASE_PARAMS structure.
+
+ @return FSP status returned by FspNotifyPhase API.
+**/
+FSP_STATUS
+EFIAPI
+CallFspNotifyPhase (
+ IN FSP_INFO_HEADER *FspHeader,
+ IN NOTIFY_PHASE_PARAMS *NotifyPhaseParams
+ )
+{
+ FSP_NOTFY_PHASE NotifyPhaseApi;
+ FSP_STATUS FspStatus;
+
+ NotifyPhaseApi = (FSP_NOTFY_PHASE)(UINTN)(FspHeader->ImageBase + FspHeader->NotifyPhaseEntryOffset);
+ FspStatus = Execute32BitCode ((UINTN)NotifyPhaseApi, (UINTN)NotifyPhaseParams);
+
+ return FspStatus;
+}
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