blob: e90b13e8dae08b533ce5f24d2d69b1abcb38173a [file] [log] [blame]
Vishal Bhoj82c80712015-12-15 21:13:33 +05301/** @file
2
3 Copyright (c) 2014, Intel Corporation. All rights reserved.<BR>
4 This program and the accompanying materials
5 are licensed and made available under the terms and conditions of the BSD License
6 which accompanies this distribution. The full text of the license may be found at
7 http://opensource.org/licenses/bsd-license.php.
8
9 THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
10 WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
11
12**/
13
14#ifndef _FSP_SWITCH_STACK_LIB_H_
15#define _FSP_SWITCH_STACK_LIB_H_
16
17/**
18
19 This funciton will switch the current stack to the previous saved stack.
20 Before calling the previous stack has to be set in FSP_GLOBAL_DATA.CoreStack.
21 EIP
22 FLAGS 16 bit FLAGS 16 bit
23 EDI
24 ESI
25 EBP
26 ESP
27 EBX
28 EDX
29 ECX
30 EAX
31 DWORD IDT base1
32 StackPointer: DWORD IDT base2
33
34 @return ReturnKey After switching to the saved stack,
35 this value will be saved in eax before returning.
36
37
38**/
39UINT32
40EFIAPI
41Pei2LoaderSwitchStack (
42 VOID
43 );
44
45#endif