1 files changed, 163 insertions, 0 deletions
diff --git a/src/VBox/VMM/VMMR3/DBGFCpu.cpp b/src/VBox/VMM/VMMR3/DBGFCpu.cpp
new file mode 100644
index 00000000..98b8cbb9
--- /dev/null
+++ b/src/VBox/VMM/VMMR3/DBGFCpu.cpp
@@ -0,0 +1,163 @@
+/* $Id: DBGFCpu.cpp $ */
+/** @file
+ * DBGF - Debugger Facility, CPU State Accessors.
+ */
+
+/*
+ * Copyright (C) 2009-2020 Oracle Corporation
+ *
+ * This file is part of VirtualBox Open Source Edition (OSE), as
+ * available from http://www.virtualbox.org. This file is free software;
+ * you can redistribute it and/or modify it under the terms of the GNU
+ * General Public License (GPL) as published by the Free Software
+ * Foundation, in version 2 as it comes in the "COPYING" file of the
+ * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
+ * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
+ */
+
+
+/*********************************************************************************************************************************
+*   Header Files                                                                                                                 *
+*********************************************************************************************************************************/
+#define LOG_GROUP LOG_GROUP_DBGF
+#define VMCPU_INCL_CPUM_GST_CTX /* For CPUM_IMPORT_EXTRN_RET(). */
+#include <VBox/vmm/dbgf.h>
+#include <VBox/vmm/cpum.h>
+#include "DBGFInternal.h"
+#include <VBox/vmm/vm.h>
+#include <VBox/vmm/uvm.h>
+#include <iprt/errcore.h>
+#include <VBox/log.h>
+#include <VBox/param.h>
+#include <iprt/assert.h>
+
+
+/**
+ * Wrapper around CPUMGetGuestMode.
+ *
+ * @returns VINF_SUCCESS.
+ * @param   pVM         The cross context VM structure.
+ * @param   idCpu       The current CPU ID.
+ * @param   penmMode    Where to return the mode.
+ */
+static DECLCALLBACK(int) dbgfR3CpuGetMode(PVM pVM, VMCPUID idCpu, CPUMMODE *penmMode)
+{
+    Assert(idCpu == VMMGetCpuId(pVM));
+    PVMCPU pVCpu = VMMGetCpuById(pVM, idCpu);
+    CPUM_IMPORT_EXTRN_RET(pVCpu, CPUMCTX_EXTRN_CR0 | CPUMCTX_EXTRN_EFER);
+    *penmMode = CPUMGetGuestMode(pVCpu);
+    return VINF_SUCCESS;
+}
+
+
+/**
+ * Get the current CPU mode.
+ *
+ * @returns The CPU mode on success, CPUMMODE_INVALID on failure.
+ * @param   pUVM        The user mode VM handle.
+ * @param   idCpu       The target CPU ID.
+ */
+VMMR3DECL(CPUMMODE) DBGFR3CpuGetMode(PUVM pUVM, VMCPUID idCpu)
+{
+    UVM_ASSERT_VALID_EXT_RETURN(pUVM, CPUMMODE_INVALID);
+    VM_ASSERT_VALID_EXT_RETURN(pUVM->pVM, CPUMMODE_INVALID);
+    AssertReturn(idCpu < pUVM->pVM->cCpus, CPUMMODE_INVALID);
+
+    CPUMMODE enmMode;
+    int rc = VMR3ReqPriorityCallWaitU(pUVM, idCpu, (PFNRT)dbgfR3CpuGetMode, 3, pUVM->pVM, idCpu, &enmMode);
+    if (RT_FAILURE(rc))
+        return CPUMMODE_INVALID;
+    return enmMode;
+}
+
+
+/**
+ * Wrapper around CPUMIsGuestIn64BitCode.
+ *
+ * @returns VINF_SUCCESS.
+ * @param   pVM             The cross context VM structure.
+ * @param   idCpu           The current CPU ID.
+ * @param   pfIn64BitCode   Where to return the result.
+ */
+static DECLCALLBACK(int) dbgfR3CpuIn64BitCode(PVM pVM, VMCPUID idCpu, bool *pfIn64BitCode)
+{
+    Assert(idCpu == VMMGetCpuId(pVM));
+    PVMCPU pVCpu = VMMGetCpuById(pVM, idCpu);
+    CPUM_IMPORT_EXTRN_RET(pVCpu, CPUMCTX_EXTRN_CS | CPUMCTX_EXTRN_EFER);
+    *pfIn64BitCode = CPUMIsGuestIn64BitCode(pVCpu);
+    return VINF_SUCCESS;
+}
+
+
+/**
+ * Checks if the given CPU is executing 64-bit code or not.
+ *
+ * @returns true / false accordingly.
+ * @param   pUVM        The user mode VM handle.
+ * @param   idCpu       The target CPU ID.
+ */
+VMMR3DECL(bool) DBGFR3CpuIsIn64BitCode(PUVM pUVM, VMCPUID idCpu)
+{
+    UVM_ASSERT_VALID_EXT_RETURN(pUVM, false);
+    VM_ASSERT_VALID_EXT_RETURN(pUVM->pVM, false);
+    AssertReturn(idCpu < pUVM->pVM->cCpus, false);
+
+    bool fIn64BitCode;
+    int rc = VMR3ReqPriorityCallWaitU(pUVM, idCpu, (PFNRT)dbgfR3CpuIn64BitCode, 3, pUVM->pVM, idCpu, &fIn64BitCode);
+    if (RT_FAILURE(rc))
+        return false;
+    return fIn64BitCode;
+}
+
+
+/**
+ * Wrapper around CPUMIsGuestInV86Code.
+ *
+ * @returns VINF_SUCCESS.
+ * @param   pVM             The cross context VM structure.
+ * @param   idCpu           The current CPU ID.
+ * @param   pfInV86Code     Where to return the result.
+ */
+static DECLCALLBACK(int) dbgfR3CpuInV86Code(PVM pVM, VMCPUID idCpu, bool *pfInV86Code)
+{
+    Assert(idCpu == VMMGetCpuId(pVM));
+    PVMCPU pVCpu = VMMGetCpuById(pVM, idCpu);
+    CPUM_IMPORT_EXTRN_RET(pVCpu, CPUMCTX_EXTRN_RFLAGS);
+    *pfInV86Code = CPUMIsGuestInV86ModeEx(CPUMQueryGuestCtxPtr(pVCpu));
+    return VINF_SUCCESS;
+}
+
+
+/**
+ * Checks if the given CPU is executing V8086 code or not.
+ *
+ * @returns true / false accordingly.
+ * @param   pUVM        The user mode VM handle.
+ * @param   idCpu       The target CPU ID.
+ */
+VMMR3DECL(bool) DBGFR3CpuIsInV86Code(PUVM pUVM, VMCPUID idCpu)
+{
+    UVM_ASSERT_VALID_EXT_RETURN(pUVM, false);
+    VM_ASSERT_VALID_EXT_RETURN(pUVM->pVM, false);
+    AssertReturn(idCpu < pUVM->pVM->cCpus, false);
+
+    bool fInV86Code;
+    int rc = VMR3ReqPriorityCallWaitU(pUVM, idCpu, (PFNRT)dbgfR3CpuInV86Code, 3, pUVM->pVM, idCpu, &fInV86Code);
+    if (RT_FAILURE(rc))
+        return false;
+    return fInV86Code;
+}
+
+
+/**
+ * Get the number of CPUs (or threads if you insist).
+ *
+ * @returns The number of CPUs
+ * @param   pUVM        The user mode VM handle.
+ */
+VMMR3DECL(VMCPUID) DBGFR3CpuGetCount(PUVM pUVM)
+{
+    UVM_ASSERT_VALID_EXT_RETURN(pUVM, 1);
+    return pUVM->cCpus;
+}
+