diff options
Diffstat (limited to 'IntelFsp2Pkg')
| -rw-r--r-- | IntelFsp2Pkg/Include/FspGlobalData.h | 12 | ||||
| -rw-r--r-- | IntelFsp2Pkg/Include/Library/FspSwitchStackLib.h | 18 |
2 files changed, 27 insertions, 3 deletions
diff --git a/IntelFsp2Pkg/Include/FspGlobalData.h b/IntelFsp2Pkg/Include/FspGlobalData.h index 5bde316893..dba9b48e1a 100644 --- a/IntelFsp2Pkg/Include/FspGlobalData.h +++ b/IntelFsp2Pkg/Include/FspGlobalData.h @@ -52,12 +52,20 @@ typedef struct { VOID *MemoryInitUpdPtr;
VOID *SiliconInitUpdPtr;
UINT8 ApiIdx;
- UINT8 FspMode; // 0: FSP in API mode; 1: FSP in DISPATCH mode
+ ///
+ /// 0: FSP in API mode; 1: FSP in DISPATCH mode
+ ///
+ UINT8 FspMode;
UINT8 OnSeparateStack;
UINT8 Reserved3;
UINT32 NumberOfPhases;
UINT32 PhasesExecuted;
- UINT8 Reserved4[20];
+ ///
+ /// To store function parameters pointer
+ /// so it can be retrieved after stack switched.
+ ///
+ VOID *FunctionParameterPtr;
+ UINT8 Reserved4[16];
UINT32 PerfSig;
UINT16 PerfLen;
UINT16 Reserved5;
diff --git a/IntelFsp2Pkg/Include/Library/FspSwitchStackLib.h b/IntelFsp2Pkg/Include/Library/FspSwitchStackLib.h index 0c76e9f022..f049361d78 100644 --- a/IntelFsp2Pkg/Include/Library/FspSwitchStackLib.h +++ b/IntelFsp2Pkg/Include/Library/FspSwitchStackLib.h @@ -1,6 +1,6 @@ /** @file
- Copyright (c) 2014, Intel Corporation. All rights reserved.<BR>
+ Copyright (c) 2014 - 2020, Intel Corporation. All rights reserved.<BR>
SPDX-License-Identifier: BSD-2-Clause-Patent
**/
@@ -36,4 +36,20 @@ Pei2LoaderSwitchStack ( VOID
);
+/**
+
+ This function is equivalent to Pei2LoaderSwitchStack () but just indicates
+ the stack after switched is FSP stack.
+
+ @return ReturnKey After switching to the saved stack,
+ this value will be saved in eax before returning.
+
+
+**/
+UINT32
+EFIAPI
+Loader2PeiSwitchStack (
+ VOID
+ );
+
#endif
|