VirtualBox

source: vbox/trunk/src/VBox/ValidationKit/bootsectors/bs3kit/bs3-cmn-TrapSetJmpAndRestoreWithExtCtxAndRm.c@ 95534

最後變更 在這個檔案從95534是 95496,由 vboxsync 提交於 3 年 前

ValKit/bs3kit: Added some wrapper functions for better dealing with 32-bit test drivers needing to handle RM and general for restoring and saving extended state. bugref:9898

  • 屬性 svn:eol-style 設為 native
  • 屬性 svn:keywords 設為 Author Date Id Revision
檔案大小: 2.4 KB
 
1/* $Id: bs3-cmn-TrapSetJmpAndRestoreWithExtCtxAndRm.c 95496 2022-07-04 09:56:50Z vboxsync $ */
2/** @file
3 * BS3Kit - Bs3TrapSetJmpAndRestoreWithExtCtxAndRm
4 */
5
6/*
7 * Copyright (C) 2007-2022 Oracle Corporation
8 *
9 * This file is part of VirtualBox Open Source Edition (OSE), as
10 * available from http://www.alldomusa.eu.org. This file is free software;
11 * you can redistribute it and/or modify it under the terms of the GNU
12 * General Public License (GPL) as published by the Free Software
13 * Foundation, in version 2 as it comes in the "COPYING" file of the
14 * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
15 * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
16 *
17 * The contents of this file may alternatively be used under the terms
18 * of the Common Development and Distribution License Version 1.0
19 * (CDDL) only, as it comes in the "COPYING.CDDL" file of the
20 * VirtualBox OSE distribution, in which case the provisions of the
21 * CDDL are applicable instead of those of the GPL.
22 *
23 * You may elect to license modified versions of this file under the
24 * terms and conditions of either the GPL or the CDDL or both.
25 */
26
27
28/*********************************************************************************************************************************
29* Header Files *
30*********************************************************************************************************************************/
31#include "bs3kit-template-header.h"
32
33
34#undef Bs3TrapSetJmpAndRestoreWithExtCtxAndRm
35BS3_CMN_DEF(void, Bs3TrapSetJmpAndRestoreWithExtCtxAndRm,(PCBS3REGCTX pCtxRestore, PCBS3EXTCTX pExtCtxRestore,
36 PBS3TRAPFRAME pTrapFrame, PBS3EXTCTX pExtCtxTrap))
37{
38 if ( pCtxRestore->bMode != BS3_MODE_RM
39#if ARCH_BITS == 16
40 || g_bBs3CurrentMode == BS3_MODE_RM
41#endif
42 )
43 {
44 BS3_ASSERT((pCtxRestore->bMode & BS3_MODE_SYS_MASK) == (g_bBs3CurrentMode & BS3_MODE_SYS_MASK));
45 Bs3TrapSetJmpAndRestoreWithExtCtx(pCtxRestore, pExtCtxRestore, pTrapFrame, pExtCtxTrap);
46 }
47 else
48 {
49 /* ASSUMES compile emits no SSE instructions between the calls here
50 (only a potential issue in 64-bit mode). */
51 Bs3ExtCtxRestoreEx(pExtCtxRestore);
52 Bs3TrapSetJmpAndRestoreInRm(pCtxRestore, pTrapFrame);
53 Bs3ExtCtxSaveEx(pExtCtxTrap);
54 }
55}
56
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