Adding upstream version 6.1.22-dfsg.upstream/6.1.22-dfsgupstream

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

1 files changed, 163 insertions, 0 deletions

diff --git a/src/VBox/VMM/VMMR0/PDMR0Driver.cpp b/src/VBox/VMM/VMMR0/PDMR0Driver.cpp
new file mode 100644
index 00000000..c22d9805
--- /dev/null
+++ b/src/VBox/VMM/VMMR0/PDMR0Driver.cpp
@@ -0,0 +1,163 @@
+/* $Id: PDMR0Driver.cpp $ */
+/** @file
+ * PDM - Pluggable Device and Driver Manager, R0 Driver parts.
+ */
+
+/*
+ * Copyright (C) 2010-2020 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_PDM_DRIVER
+#include "PDMInternal.h"
+#include <VBox/vmm/pdm.h>
+#include <VBox/vmm/vmcc.h>
+#include <VBox/vmm/gvmm.h>
+
+#include <VBox/log.h>
+#include <iprt/errcore.h>
+#include <iprt/assert.h>
+
+
+/*********************************************************************************************************************************
+*   Global Variables                                                                                                             *
+*********************************************************************************************************************************/
+RT_C_DECLS_BEGIN
+extern DECLEXPORT(const PDMDRVHLPR0)    g_pdmR0DrvHlp;
+RT_C_DECLS_END
+
+
+/** @name Ring-0 Context Driver Helpers
+ * @{
+ */
+
+/** @interface_method_impl{PDMDRVHLPR0,pfnVMSetError} */
+static DECLCALLBACK(int) pdmR0DrvHlp_VMSetError(PPDMDRVINS pDrvIns, int rc, RT_SRC_POS_DECL, const char *pszFormat, ...)
+{
+    PDMDRV_ASSERT_DRVINS(pDrvIns);
+    va_list args;
+    va_start(args, pszFormat);
+    int rc2 = VMSetErrorV(pDrvIns->Internal.s.pVMR0, rc, RT_SRC_POS_ARGS, pszFormat, args); Assert(rc2 == rc); NOREF(rc2);
+    va_end(args);
+    return rc;
+}
+
+
+/** @interface_method_impl{PDMDRVHLPR0,pfnVMSetErrorV} */
+static DECLCALLBACK(int) pdmR0DrvHlp_VMSetErrorV(PPDMDRVINS pDrvIns, int rc, RT_SRC_POS_DECL, const char *pszFormat, va_list va)
+{
+    PDMDRV_ASSERT_DRVINS(pDrvIns);
+    int rc2 = VMSetErrorV(pDrvIns->Internal.s.pVMR0, rc, RT_SRC_POS_ARGS, pszFormat, va); Assert(rc2 == rc); NOREF(rc2);
+    return rc;
+}
+
+
+/** @interface_method_impl{PDMDRVHLPR0,pfnVMSetRuntimeError} */
+static DECLCALLBACK(int) pdmR0DrvHlp_VMSetRuntimeError(PPDMDRVINS pDrvIns, uint32_t fFlags, const char *pszErrorId,
+                                                       const char *pszFormat, ...)
+{
+    PDMDRV_ASSERT_DRVINS(pDrvIns);
+    va_list va;
+    va_start(va, pszFormat);
+    int rc = VMSetRuntimeErrorV(pDrvIns->Internal.s.pVMR0, fFlags, pszErrorId, pszFormat, va);
+    va_end(va);
+    return rc;
+}
+
+
+/** @interface_method_impl{PDMDRVHLPR0,pfnVMSetRuntimeErrorV} */
+static DECLCALLBACK(int) pdmR0DrvHlp_VMSetRuntimeErrorV(PPDMDRVINS pDrvIns, uint32_t fFlags, const char *pszErrorId,
+                                                        const char *pszFormat, va_list va)
+{
+    PDMDRV_ASSERT_DRVINS(pDrvIns);
+    int rc = VMSetRuntimeErrorV(pDrvIns->Internal.s.pVMR0, fFlags, pszErrorId, pszFormat, va);
+    return rc;
+}
+
+
+/** @interface_method_impl{PDMDRVHLPR0,pfnAssertEMT} */
+static DECLCALLBACK(bool) pdmR0DrvHlp_AssertEMT(PPDMDRVINS pDrvIns, const char *pszFile, unsigned iLine, const char *pszFunction)
+{
+    PDMDRV_ASSERT_DRVINS(pDrvIns);
+    if (VM_IS_EMT(pDrvIns->Internal.s.pVMR0))
+        return true;
+
+    RTAssertMsg1Weak("AssertEMT", iLine, pszFile, pszFunction);
+    RTAssertPanic();
+    return false;
+}
+
+
+/** @interface_method_impl{PDMDRVHLPR0,pfnAssertOther} */
+static DECLCALLBACK(bool) pdmR0DrvHlp_AssertOther(PPDMDRVINS pDrvIns, const char *pszFile, unsigned iLine, const char *pszFunction)
+{
+    PDMDRV_ASSERT_DRVINS(pDrvIns);
+    if (!VM_IS_EMT(pDrvIns->Internal.s.pVMR0))
+        return true;
+
+    RTAssertMsg1Weak("AssertOther", iLine, pszFile, pszFunction);
+    RTAssertPanic();
+    return false;
+}
+
+
+/**
+ * The Ring-0 Context Driver Helper Callbacks.
+ */
+extern DECLEXPORT(const PDMDRVHLPR0) g_pdmR0DrvHlp =
+{
+    PDM_DRVHLPRC_VERSION,
+    pdmR0DrvHlp_VMSetError,
+    pdmR0DrvHlp_VMSetErrorV,
+    pdmR0DrvHlp_VMSetRuntimeError,
+    pdmR0DrvHlp_VMSetRuntimeErrorV,
+    pdmR0DrvHlp_AssertEMT,
+    pdmR0DrvHlp_AssertOther,
+    PDM_DRVHLPRC_VERSION
+};
+
+/** @} */
+
+
+
+/**
+ * PDMDrvHlpCallR0 helper.
+ *
+ * @returns See PFNPDMDRVREQHANDLERR0.
+ * @param   pGVM    The global (ring-0) VM structure. (For validation.)
+ * @param   pReq    Pointer to the request buffer.
+ */
+VMMR0_INT_DECL(int) PDMR0DriverCallReqHandler(PGVM pGVM, PPDMDRIVERCALLREQHANDLERREQ pReq)
+{
+    /*
+     * Validate input and make the call.
+     */
+    int rc = GVMMR0ValidateGVM(pGVM);
+    if (RT_SUCCESS(rc))
+    {
+        AssertPtrReturn(pReq, VERR_INVALID_POINTER);
+        AssertMsgReturn(pReq->Hdr.cbReq == sizeof(*pReq), ("%#x != %#x\n", pReq->Hdr.cbReq, sizeof(*pReq)), VERR_INVALID_PARAMETER);
+
+        PPDMDRVINS pDrvIns = pReq->pDrvInsR0;
+        AssertPtrReturn(pDrvIns, VERR_INVALID_POINTER);
+        AssertReturn(pDrvIns->Internal.s.pVMR0 == pGVM, VERR_INVALID_PARAMETER);
+
+        PFNPDMDRVREQHANDLERR0 pfnReqHandlerR0 = pDrvIns->Internal.s.pfnReqHandlerR0;
+        AssertPtrReturn(pfnReqHandlerR0, VERR_INVALID_POINTER);
+
+        rc = pfnReqHandlerR0(pDrvIns, pReq->uOperation, pReq->u64Arg);
+    }
+    return rc;
+}
+