Adding upstream version 6.0.4-dfsg.upstream/6.0.4-dfsgupstream

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

1 files changed, 466 insertions, 0 deletions

diff --git a/src/VBox/Devices/PC/ACPI/VBoxAcpi.cpp b/src/VBox/Devices/PC/ACPI/VBoxAcpi.cpp
new file mode 100644
index 00000000..4634aa06
--- /dev/null
+++ b/src/VBox/Devices/PC/ACPI/VBoxAcpi.cpp
@@ -0,0 +1,466 @@
+/* $Id: VBoxAcpi.cpp $ */
+/** @file
+ * VBoxAcpi - VirtualBox ACPI manipulation functionality.
+ */
+
+/*
+ * Copyright (C) 2009-2019 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                                                                                                                 *
+*********************************************************************************************************************************/
+#include <iprt/cdefs.h>
+#if !defined(IN_RING3)
+# error Pure R3 code
+#endif
+
+#define LOG_GROUP LOG_GROUP_DEV_ACPI
+#include <VBox/vmm/pdmdev.h>
+#include <VBox/vmm/pgm.h>
+#include <VBox/log.h>
+#include <VBox/param.h>
+#include <VBox/vmm/cfgm.h>
+#include <VBox/vmm/mm.h>
+#include <iprt/assert.h>
+#include <iprt/alloc.h>
+#include <iprt/string.h>
+#include <iprt/file.h>
+
+#ifdef VBOX_WITH_DYNAMIC_DSDT
+/* vbox.dsl - input to generate proper DSDT on the fly */
+# include <vboxdsl.hex>
+#else
+/* Statically compiled AML */
+# include <vboxaml.hex>
+# include <vboxssdt_standard.hex>
+# include <vboxssdt_cpuhotplug.hex>
+#endif
+
+#include "VBoxDD.h"
+
+
+#ifdef VBOX_WITH_DYNAMIC_DSDT
+
+static int prepareDynamicDsdt(PPDMDEVINS pDevIns, void **ppvPtr, size_t *pcbDsdt)
+{
+  *ppvPtr = NULL;
+  *pcbDsdt = 0;
+  return 0;
+}
+
+static int cleanupDynamicDsdt(PPDMDEVINS pDevIns, void *pvPtr)
+{
+    return 0;
+}
+
+#else  /* VBOX_WITH_DYNAMIC_DSDT */
+
+static int patchAml(PPDMDEVINS pDevIns, uint8_t *pabAml, size_t cbAml)
+{
+    uint16_t cNumCpus;
+    int rc;
+
+    rc = CFGMR3QueryU16Def(pDevIns->pCfg, "NumCPUs", &cNumCpus, 1);
+
+    if (RT_FAILURE(rc))
+        return rc;
+
+    /* Clear CPU objects at all, if needed */
+    bool fShowCpu;
+    rc = CFGMR3QueryBoolDef(pDevIns->pCfg, "ShowCpu", &fShowCpu, false);
+    if (RT_FAILURE(rc))
+        return rc;
+
+    if (!fShowCpu)
+        cNumCpus = 0;
+
+    /**
+     * Now search AML for:
+     *  AML_PROCESSOR_OP            (UINT16) 0x5b83
+     * and replace whole block with
+     *  AML_NOOP_OP                 (UINT16) 0xa3
+     * for VCPU not configured
+     */
+    for (uint32_t i = 0; i < cbAml - 7; i++)
+    {
+        /*
+         * AML_PROCESSOR_OP
+         *
+         * DefProcessor := ProcessorOp PkgLength NameString ProcID
+                             PblkAddr PblkLen ObjectList
+         * ProcessorOp  := ExtOpPrefix 0x83
+         * ProcID       := ByteData
+         * PblkAddr     := DwordData
+         * PblkLen      := ByteData
+         */
+        if (pabAml[i] == 0x5b && pabAml[i+1] == 0x83)
+        {
+            if (pabAml[i+3] != 'C' || pabAml[i+4] != 'P')
+                /* false alarm, not named starting CP */
+                continue;
+
+            /* Processor ID */
+            if (pabAml[i+7] < cNumCpus)
+              continue;
+
+            /* Will fill unwanted CPU block with NOOPs */
+            /*
+             * See 18.2.4 Package Length Encoding in ACPI spec
+             * for full format
+             */
+            uint32_t cBytes = pabAml[i + 2];
+            AssertReleaseMsg((cBytes >> 6) == 0,
+                             ("So far, we only understand simple package length"));
+
+            /* including AML_PROCESSOR_OP itself */
+            for (uint32_t j = 0; j < cBytes + 2; j++)
+                pabAml[i+j] = 0xa3;
+
+            /* Can increase i by cBytes + 1, but not really worth it */
+        }
+    }
+
+    /* now recompute checksum, whole file byte sum must be 0 */
+    pabAml[9] = 0;
+    uint8_t         bSum = 0;
+    for (uint32_t i = 0; i < cbAml; i++)
+      bSum = bSum + pabAml[i];
+    pabAml[9] = (uint8_t)(0 - bSum);
+
+    return 0;
+}
+
+/**
+ * Patch the CPU hot-plug SSDT version to
+ * only contain the ACPI containers which may have a CPU
+ */
+static int patchAmlCpuHotPlug(PPDMDEVINS pDevIns, uint8_t *pabAml, size_t cbAml)
+{
+    uint16_t cNumCpus;
+    int rc;
+    uint32_t idxAml = 0;
+
+    rc = CFGMR3QueryU16Def(pDevIns->pCfg, "NumCPUs", &cNumCpus, 1);
+
+    if (RT_FAILURE(rc))
+        return rc;
+
+    /**
+     * Now search AML for:
+     *  AML_DEVICE_OP               (UINT16) 0x5b82
+     * and replace whole block with
+     *  AML_NOOP_OP                 (UINT16) 0xa3
+     * for VCPU not configured
+     */
+    while (idxAml < cbAml - 7)
+    {
+        /*
+         * AML_DEVICE_OP
+         *
+         * DefDevice    := DeviceOp PkgLength NameString ObjectList
+         * DeviceOp     := ExtOpPrefix 0x82
+         */
+        if (pabAml[idxAml] == 0x5b && pabAml[idxAml+1] == 0x82)
+        {
+            /* Check if the enclosed CPU device is configured. */
+            uint8_t *pabAmlPkgLength = &pabAml[idxAml+2];
+            uint32_t cBytes = 0;
+            uint32_t cLengthBytesFollow = pabAmlPkgLength[0] >> 6;
+
+            if (cLengthBytesFollow == 0)
+            {
+                /* Simple package length */
+                cBytes = pabAmlPkgLength[0];
+            }
+            else
+            {
+                unsigned idxLengthByte = 1;
+
+                cBytes = pabAmlPkgLength[0] & 0xF;
+
+                while (idxLengthByte <= cLengthBytesFollow)
+                {
+                    cBytes |= pabAmlPkgLength[idxLengthByte] << (4*idxLengthByte);
+                    idxLengthByte++;
+                }
+            }
+
+            uint8_t *pabAmlDevName = &pabAmlPkgLength[cLengthBytesFollow+1];
+            uint8_t *pabAmlCpu     = &pabAmlDevName[4];
+            bool fCpuConfigured = false;
+            bool fCpuFound      = false;
+
+            if ((pabAmlDevName[0] != 'S') || (pabAmlDevName[1] != 'C') || (pabAmlDevName[2] != 'K'))
+            {
+                /* false alarm, not named starting SCK */
+                idxAml++;
+                continue;
+            }
+
+            for (uint32_t idxAmlCpu = 0; idxAmlCpu < cBytes - 7; idxAmlCpu++)
+            {
+                /*
+                 * AML_PROCESSOR_OP
+                 *
+                 * DefProcessor := ProcessorOp PkgLength NameString ProcID
+                                     PblkAddr PblkLen ObjectList
+                 * ProcessorOp  := ExtOpPrefix 0x83
+                 * ProcID       := ByteData
+                 * PblkAddr     := DwordData
+                 * PblkLen      := ByteData
+                 */
+                if ((pabAmlCpu[idxAmlCpu] == 0x5b) && (pabAmlCpu[idxAmlCpu+1] == 0x83))
+                {
+                    if ((pabAmlCpu[idxAmlCpu+4] != 'C') || (pabAmlCpu[idxAmlCpu+5] != 'P'))
+                        /* false alarm, not named starting CP */
+                        continue;
+
+                    fCpuFound = true;
+
+                    /* Processor ID */
+                    uint8_t const idAmlCpu = pabAmlCpu[idxAmlCpu + 8];
+                    if (idAmlCpu < cNumCpus)
+                    {
+                        LogFlow(("CPU %u is configured\n", idAmlCpu));
+                        fCpuConfigured = true;
+                    }
+                    else
+                    {
+                        LogFlow(("CPU %u is not configured\n", idAmlCpu));
+                        fCpuConfigured = false;
+                    }
+                    break;
+                }
+            }
+
+            Assert(fCpuFound);
+
+            if (!fCpuConfigured)
+            {
+                /* Will fill unwanted CPU block with NOOPs */
+                /*
+                 * See 18.2.4 Package Length Encoding in ACPI spec
+                 * for full format
+                 */
+
+                /* including AML_DEVICE_OP itself */
+                for (uint32_t j = 0; j < cBytes + 2; j++)
+                    pabAml[idxAml+j] = 0xa3;
+            }
+
+            idxAml++;
+        }
+        else
+            idxAml++;
+    }
+
+    /* now recompute checksum, whole file byte sum must be 0 */
+    pabAml[9] = 0;
+    uint8_t         bSum = 0;
+    for (uint32_t i = 0; i < cbAml; i++)
+      bSum = bSum + pabAml[i];
+    pabAml[9] = (uint8_t)(0 - bSum);
+
+    return 0;
+}
+
+#endif /* VBOX_WITH_DYNAMIC_DSDT */
+
+/**
+ * Loads an AML file if present in CFGM
+ *
+ * @returns VBox status code
+ * @param   pDevIns        The device instance
+ * @param   pcszCfgName    The configuration key holding the file path
+ * @param   pcszSignature  The signature to check for
+ * @param   ppabAmlCode     Where to store the pointer to the AML code on success.
+ * @param   pcbAmlCode     Where to store the number of bytes of the AML code on success.
+ */
+static int acpiAmlLoadExternal(PPDMDEVINS pDevIns, const char *pcszCfgName, const char *pcszSignature, uint8_t **ppabAmlCode, size_t *pcbAmlCode)
+{
+    uint8_t *pabAmlCode = NULL;
+    size_t cbAmlCode = 0;
+    char *pszAmlFilePath = NULL;
+    int rc = CFGMR3QueryStringAlloc(pDevIns->pCfg, pcszCfgName, &pszAmlFilePath);
+
+    if (RT_SUCCESS(rc))
+    {
+        /* Load from file. */
+        RTFILE FileAml = NIL_RTFILE;
+
+        rc = RTFileOpen(&FileAml, pszAmlFilePath, RTFILE_O_OPEN | RTFILE_O_READ | RTFILE_O_DENY_NONE);
+        if (RT_SUCCESS(rc))
+        {
+            /*
+             * An AML file contains the raw DSDT thus the size of the file
+             * is equal to the size of the DSDT.
+             */
+            uint64_t cbAmlFile = 0;
+            rc = RTFileGetSize(FileAml, &cbAmlFile);
+
+            cbAmlCode = (size_t)cbAmlFile;
+
+            /* Don't use AML files over 4GB ;) */
+            if (   RT_SUCCESS(rc)
+                && ((uint64_t)cbAmlCode == cbAmlFile))
+            {
+                pabAmlCode = (uint8_t *)RTMemAllocZ(cbAmlCode);
+                if (pabAmlCode)
+                {
+                    rc = RTFileReadAt(FileAml, 0, pabAmlCode, cbAmlCode, NULL);
+
+                    /*
+                     * We fail if reading failed or the identifier at the
+                     * beginning is wrong.
+                     */
+                    if (   RT_FAILURE(rc)
+                        || strncmp((const char *)pabAmlCode, pcszSignature, 4))
+                    {
+                        RTMemFree(pabAmlCode);
+                        pabAmlCode = NULL;
+
+                        /* Return error if file header check failed */
+                        if (RT_SUCCESS(rc))
+                            rc = VERR_PARSE_ERROR;
+                    }
+                    else
+                    {
+                        *ppabAmlCode = pabAmlCode;
+                        *pcbAmlCode = cbAmlCode;
+                        rc = VINF_SUCCESS;
+                    }
+                }
+                else
+                    rc = VERR_NO_MEMORY;
+            }
+
+            RTFileClose(FileAml);
+        }
+        MMR3HeapFree(pszAmlFilePath);
+    }
+
+    return rc;
+}
+
+
+/** No docs, lazy coder. */
+int acpiPrepareDsdt(PPDMDEVINS pDevIns,  void **ppvPtr, size_t *pcbDsdt)
+{
+#ifdef VBOX_WITH_DYNAMIC_DSDT
+    return prepareDynamicDsdt(pDevIns, ppvPtr, pcbDsdt);
+#else
+    uint8_t *pabAmlCodeDsdt = NULL;
+    size_t cbAmlCodeDsdt = 0;
+    int rc = acpiAmlLoadExternal(pDevIns, "DsdtFilePath", "DSDT", &pabAmlCodeDsdt, &cbAmlCodeDsdt);
+
+    if (rc == VERR_CFGM_VALUE_NOT_FOUND)
+    {
+        rc = VINF_SUCCESS;
+
+        /* Use the compiled in AML code */
+        cbAmlCodeDsdt = sizeof(AmlCode);
+        pabAmlCodeDsdt = (uint8_t *)RTMemAllocZ(cbAmlCodeDsdt);
+        if (pabAmlCodeDsdt)
+            memcpy(pabAmlCodeDsdt, AmlCode, cbAmlCodeDsdt);
+        else
+            rc = VERR_NO_MEMORY;
+    }
+    else if (RT_FAILURE(rc))
+        return PDMDEV_SET_ERROR(pDevIns, rc,
+                                N_("Configuration error: Failed to read \"DsdtFilePath\""));
+
+    if (RT_SUCCESS(rc))
+    {
+        patchAml(pDevIns, pabAmlCodeDsdt, cbAmlCodeDsdt);
+        *ppvPtr = pabAmlCodeDsdt;
+        *pcbDsdt = cbAmlCodeDsdt;
+    }
+    return rc;
+#endif
+}
+
+/** No docs, lazy coder. */
+int acpiCleanupDsdt(PPDMDEVINS pDevIns, void *pvPtr)
+{
+#ifdef VBOX_WITH_DYNAMIC_DSDT
+    return cleanupDynamicDsdt(pDevIns, pvPtr);
+#else
+    RT_NOREF1(pDevIns);
+    if (pvPtr)
+        RTMemFree(pvPtr);
+    return VINF_SUCCESS;
+#endif
+}
+
+/** No docs, lazy coder. */
+int acpiPrepareSsdt(PPDMDEVINS pDevIns, void **ppvPtr, size_t *pcbSsdt)
+{
+    uint8_t *pabAmlCodeSsdt = NULL;
+    size_t   cbAmlCodeSsdt = 0;
+    int rc = acpiAmlLoadExternal(pDevIns, "SsdtFilePath", "SSDT", &pabAmlCodeSsdt, &cbAmlCodeSsdt);
+
+    if (rc == VERR_CFGM_VALUE_NOT_FOUND)
+    {
+        bool fCpuHotPlug = false;
+        uint8_t *pabAmlCode = NULL;
+        rc = CFGMR3QueryBoolDef(pDevIns->pCfg, "CpuHotPlug", &fCpuHotPlug, false);
+
+        if (RT_FAILURE(rc))
+            return rc;
+
+        if (fCpuHotPlug)
+        {
+            pabAmlCode     = AmlCodeSsdtCpuHotPlug;
+            cbAmlCodeSsdt = sizeof(AmlCodeSsdtCpuHotPlug);
+        }
+        else
+        {
+            pabAmlCode     = AmlCodeSsdtStandard;
+            cbAmlCodeSsdt = sizeof(AmlCodeSsdtStandard);
+        }
+
+        pabAmlCodeSsdt = (uint8_t *)RTMemAllocZ(cbAmlCodeSsdt);
+        if (pabAmlCodeSsdt)
+        {
+            memcpy(pabAmlCodeSsdt, pabAmlCode, cbAmlCodeSsdt);
+
+            if (fCpuHotPlug)
+                patchAmlCpuHotPlug(pDevIns, pabAmlCodeSsdt, cbAmlCodeSsdt);
+            else
+                patchAml(pDevIns, pabAmlCodeSsdt, cbAmlCodeSsdt);
+        }
+        else
+            rc = VERR_NO_MEMORY;
+    }
+    else if (RT_FAILURE(rc))
+        return PDMDEV_SET_ERROR(pDevIns, rc,
+                                N_("Configuration error: Failed to read \"SsdtFilePath\""));
+
+    if (RT_SUCCESS(rc))
+    {
+        *ppvPtr = pabAmlCodeSsdt;
+        *pcbSsdt = cbAmlCodeSsdt;
+    }
+
+    return VINF_SUCCESS;
+}
+
+/** No docs, lazy coder. */
+int acpiCleanupSsdt(PPDMDEVINS pDevIns, void *pvPtr)
+{
+    RT_NOREF1(pDevIns);
+    if (pvPtr)
+        RTMemFree(pvPtr);
+    return VINF_SUCCESS;
+}
+