From af1a266670d040d2f4083ff309d732d648afba2a Mon Sep 17 00:00:00 2001
From: Angelos Mouzakitis <a.mouzakitis@virtualopensystems.com>
Date: Tue, 10 Oct 2023 14:33:42 +0000
Subject: Add submodule dependency files

Change-Id: Iaf8d18082d3991dec7c0ebbea540f092188eb4ec
---
 .../Include/Library/FspSwitchStackLib.h            | 55 ++++++++++++++++++++++
 1 file changed, 55 insertions(+)
 create mode 100644 roms/edk2/IntelFsp2Pkg/Include/Library/FspSwitchStackLib.h

(limited to 'roms/edk2/IntelFsp2Pkg/Include/Library/FspSwitchStackLib.h')

diff --git a/roms/edk2/IntelFsp2Pkg/Include/Library/FspSwitchStackLib.h b/roms/edk2/IntelFsp2Pkg/Include/Library/FspSwitchStackLib.h
new file mode 100644
index 000000000..f049361d7
--- /dev/null
+++ b/roms/edk2/IntelFsp2Pkg/Include/Library/FspSwitchStackLib.h
@@ -0,0 +1,55 @@
+/** @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.
+
+
+**/
+UINT32
+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.
+
+
+**/
+UINT32
+EFIAPI
+Loader2PeiSwitchStack (
+  VOID
+  );
+
+#endif
-- 
cgit 1.2.3-korg