| /** @file | |
| Copyright (c) 2014 - 2020, Intel Corporation. All rights reserved.<BR> | |
| SPDX-License-Identifier: BSD-2-Clause-Patent | |
| **/ | |
| #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. | |
| **/ | |
| EFI_STATUS | |
| EFIAPI | |
| 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. | |
| **/ | |
| EFI_STATUS | |
| EFIAPI | |
| Loader2PeiSwitchStack ( | |
| VOID | |
| ); | |
| #endif |