VirtualBox

source: vbox/trunk/src/VBox/VMM/VMMR3/DBGFCpu.cpp@ 38838

Last change on this file since 38838 was 38838, checked in by vboxsync, 13 years ago

VMM,++: Try fix the async reset, suspend and power-off problems in PDM wrt conflicting VMM requests. Split them into priority requests and normal requests. The priority requests can safely be processed when PDM is doing async state change waits, the normal ones cannot. (The problem I bumped into was a unmap-chunk request from PGM being processed during PDMR3Reset, causing a recursive VMMR3EmtRendezvous deadlock.)

  • Property svn:eol-style set to native
  • Property svn:keywords set to Author Date Id Revision
File size: 2.1 KB
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1/* $Id: DBGFCpu.cpp 38838 2011-09-23 11:21:55Z vboxsync $ */
2/** @file
3 * DBGF - Debugger Facility, CPU State Accessors.
4 */
5
6/*
7 * Copyright (C) 2009 Oracle Corporation
8 *
9 * This file is part of VirtualBox Open Source Edition (OSE), as
10 * available from http://www.virtualbox.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
18
19/*******************************************************************************
20* Header Files *
21*******************************************************************************/
22#define LOG_GROUP LOG_GROUP_DBGF
23#include <VBox/vmm/dbgf.h>
24#include <VBox/vmm/cpum.h>
25#include "DBGFInternal.h"
26#include <VBox/vmm/vm.h>
27#include <VBox/err.h>
28#include <VBox/log.h>
29#include <VBox/param.h>
30#include <iprt/assert.h>
31
32
33/**
34 * Wrapper around CPUMGetGuestMode.
35 *
36 * @returns VINF_SUCCESS.
37 * @param pVM The VM handle.
38 * @param idCpu The current CPU ID.
39 * @param penmMode Where to return the mode.
40 */
41static DECLCALLBACK(int) dbgfR3CpuGetMode(PVM pVM, VMCPUID idCpu, CPUMMODE *penmMode)
42{
43 Assert(idCpu == VMMGetCpuId(pVM));
44 PVMCPU pVCpu = VMMGetCpuById(pVM, idCpu);
45 *penmMode = CPUMGetGuestMode(pVCpu);
46 return VINF_SUCCESS;
47}
48
49
50/**
51 * Get the current CPU mode.
52 *
53 * @returns The CPU mode on success, CPUMMODE_INVALID on failure.
54 * @param pVM The VM handle.
55 * @param idCpu The target CPU ID.
56 */
57VMMR3DECL(CPUMMODE) DBGFR3CpuGetMode(PVM pVM, VMCPUID idCpu)
58{
59 VM_ASSERT_VALID_EXT_RETURN(pVM, CPUMMODE_INVALID);
60 AssertReturn(idCpu < pVM->cCpus, CPUMMODE_INVALID);
61
62 CPUMMODE enmMode;
63 int rc = VMR3ReqPriorityCallWait(pVM, idCpu, (PFNRT)dbgfR3CpuGetMode, 3, pVM, idCpu, &enmMode);
64 if (RT_FAILURE(rc))
65 return CPUMMODE_INVALID;
66 return enmMode;
67}
68
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