Adding upstream version 7.0.14-dfsg.upstream/7.0.14-dfsg

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 208 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..a88efe75
--- /dev/null
+++ b/src/VBox/VMM/VMMR3/DBGFCpu.cpp
@@ -0,0 +1,208 @@
+/* $Id: DBGFCpu.cpp $ */
+/** @file
+ * DBGF - Debugger Facility, CPU State Accessors.
+ */
+
+/*
+ * Copyright (C) 2009-2023 Oracle and/or its affiliates.
+ *
+ * This file is part of VirtualBox base platform packages, as
+ * available from https://www.virtualbox.org.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation, in version 3 of the
+ * License.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, see <https://www.gnu.org/licenses>.
+ *
+ * SPDX-License-Identifier: GPL-3.0-only
+ */
+
+
+/*********************************************************************************************************************************
+*   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;
+}
+
+
+/**
+ * Returns the state of the given CPU as a human readable string.
+ *
+ * @returns Pointer to the human readable CPU state string.
+ * @param   pUVM        The user mode VM handle.
+ * @param   idCpu       The target CPU ID.
+ */
+VMMR3DECL(const char *) DBGFR3CpuGetState(PUVM pUVM, VMCPUID idCpu)
+{
+    UVM_ASSERT_VALID_EXT_RETURN(pUVM, NULL);
+    VM_ASSERT_VALID_EXT_RETURN(pUVM->pVM, NULL);
+    AssertReturn(idCpu < pUVM->pVM->cCpus, NULL);
+
+    PVMCPU pVCpu = VMMGetCpuById(pUVM->pVM, idCpu);
+    VMCPUSTATE enmCpuState = (VMCPUSTATE)ASMAtomicReadU32((volatile uint32_t *)&pVCpu->enmState);
+
+    switch (enmCpuState)
+    {
+        case VMCPUSTATE_INVALID:                   return "<INVALID>";
+        case VMCPUSTATE_STOPPED:                   return "Stopped";
+        case VMCPUSTATE_STARTED:                   return "Started";
+        case VMCPUSTATE_STARTED_HM:                return "Started (HM)";
+        case VMCPUSTATE_STARTED_EXEC:              return "Started (Exec)";
+        case VMCPUSTATE_STARTED_EXEC_NEM:          return "Started (Exec NEM)";
+        case VMCPUSTATE_STARTED_EXEC_NEM_WAIT:     return "Started (Exec NEM Wait)";
+        case VMCPUSTATE_STARTED_EXEC_NEM_CANCELED: return "Started (Exec NEM Canceled)";
+        case VMCPUSTATE_STARTED_HALTED:            return "Started (Halted)";
+        case VMCPUSTATE_END:                       return "END";
+        default: break;
+    }
+
+    AssertMsgFailedReturn(("Unknown CPU state %u\n", enmCpuState), "<UNKNOWN>");
+}
+