diff options
Diffstat (limited to 'src/vendorcode/intel/edk2/UDK2017/IntelFsp2Pkg/Include/Library/FspSwitchStackLib.h')
-rw-r--r-- | src/vendorcode/intel/edk2/UDK2017/IntelFsp2Pkg/Include/Library/FspSwitchStackLib.h | 45 |
1 files changed, 45 insertions, 0 deletions
diff --git a/src/vendorcode/intel/edk2/UDK2017/IntelFsp2Pkg/Include/Library/FspSwitchStackLib.h b/src/vendorcode/intel/edk2/UDK2017/IntelFsp2Pkg/Include/Library/FspSwitchStackLib.h new file mode 100644 index 0000000000..9b3eaa55ff --- /dev/null +++ b/src/vendorcode/intel/edk2/UDK2017/IntelFsp2Pkg/Include/Library/FspSwitchStackLib.h @@ -0,0 +1,45 @@ +/** @file + + 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. + +**/ + +#ifndef _FSP_SWITCH_STACK_LIB_H_ +#define _FSP_SWITCH_STACK_LIB_H_ + +/** + + This function will switch the current stack to the previous saved stack. + Before calling the previous stack has to be set in FSP_GLOBAL_DATA.CoreStack. + EIP + FLAGS 16 bit FLAGS 16 bit + EDI + ESI + EBP + ESP + EBX + EDX + ECX + EAX + DWORD IDT base1 + StackPointer: DWORD IDT base2 + + @return ReturnKey After switching to the saved stack, + this value will be saved in eax before returning. + + +**/ +UINT32 +EFIAPI +Pei2LoaderSwitchStack ( + VOID + ); + +#endif |