diff options
Diffstat (limited to 'src/VBox/Devices/EFI/Firmware/VBoxPkg/VBoxSysTables/VBoxSysTables.c')
| -rw-r--r-- | src/VBox/Devices/EFI/Firmware/VBoxPkg/VBoxSysTables/VBoxSysTables.c | 178 |
1 files changed, 178 insertions, 0 deletions
diff --git a/src/VBox/Devices/EFI/Firmware/VBoxPkg/VBoxSysTables/VBoxSysTables.c b/src/VBox/Devices/EFI/Firmware/VBoxPkg/VBoxSysTables/VBoxSysTables.c new file mode 100644 index 00000000..06d0b6a9 --- /dev/null +++ b/src/VBox/Devices/EFI/Firmware/VBoxPkg/VBoxSysTables/VBoxSysTables.c @@ -0,0 +1,178 @@ +/* $Id: VBoxSysTables.c $ */ +/** @file + * VBoxSysTables.c - VirtualBox system tables + */ + +/* + * Copyright (C) 2009-2022 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>. + * + * The contents of this file may alternatively be used under the terms + * of the Common Development and Distribution License Version 1.0 + * (CDDL), a copy of it is provided in the "COPYING.CDDL" file included + * in the VirtualBox distribution, in which case the provisions of the + * CDDL are applicable instead of those of the GPL. + * + * You may elect to license modified versions of this file under the + * terms and conditions of either the GPL or the CDDL or both. + * + * SPDX-License-Identifier: GPL-3.0-only OR CDDL-1.0 + */ + + +/********************************************************************************************************************************* +* Header Files * +*********************************************************************************************************************************/ +#include <Library/BaseMemoryLib.h> +#include <Library/DebugLib.h> +#include <Library/UefiBootServicesTableLib.h> +#include <Library/UefiLib.h> + +#include <Protocol/DevicePathToText.h> + +#include <IndustryStandard/Acpi10.h> +#include <IndustryStandard/Acpi20.h> +#include <IndustryStandard/SmBios.h> + +#include <Guid/SmBios.h> +#include <Guid/Acpi.h> +#include <Guid/Mps.h> + +#include "VBoxPkg.h" +#include "DevEFI.h" +#include "iprt/asm.h" + + +/********************************************************************************************************************************* +* Internal Functions * +*********************************************************************************************************************************/ + + +EFI_STATUS EFIAPI +ConvertSystemTable ( + IN EFI_GUID *TableGuid, + IN OUT VOID **Table + ); + +#define MPS_PTR SIGNATURE_32('_','M','P','_') +#define SMBIOS_PTR SIGNATURE_32('_','S','M','_') + +#define EBDA_BASE (0x9FC0 << 4) + +VOID * +FindSMBIOSPtr ( + VOID + ) +{ + UINTN Address; + + // + // First Search 0x0e0000 - 0x0fffff for SMBIOS Ptr + // + for (Address = 0xe0000; Address < 0xfffff; Address += 0x10) { + if (*(UINT32 *)(Address) == SMBIOS_PTR) { + return (VOID *)Address; + } + } + return NULL; +} + +VOID * +FindMPSPtr ( + VOID + ) +{ + UINTN Address; + UINTN Index; + + // + // First Search 0x0e0000 - 0x0fffff for MPS Ptr + // + for (Address = 0xe0000; Address < 0xfffff; Address += 0x10) { + if (*(UINT32 *)(Address) == MPS_PTR) { + return (VOID *)Address; + } + } + + // + // Search EBDA + // + + Address = EBDA_BASE; + for (Index = 0; Index < 0x400 ; Index += 16) { + if (*(UINT32 *)(Address + Index) == MPS_PTR) { + return (VOID *)(Address + Index); + } + } + return NULL; +} + +EFI_STATUS EFIAPI +ConvertAndInstallTable(EFI_GUID* Guid, VOID* Ptr) +{ + EFI_STATUS rc = EFI_SUCCESS; + + rc = ConvertSystemTable(Guid, &Ptr); + //ASSERT_EFI_ERROR (rc); + + rc = gBS->InstallConfigurationTable(Guid, Ptr); + ASSERT_EFI_ERROR (rc); + + return rc; +} + + +/** + * VBoxSysTablesDxe entry point. + * + * @returns EFI status code. + * + * @param ImageHandle The image handle. + * @param SystemTable The system table pointer. + */ +EFI_STATUS EFIAPI +DxeInitializeVBoxSysTables(IN EFI_HANDLE ImageHandle, IN EFI_SYSTEM_TABLE *SystemTable) +{ + EFI_STATUS rc; + VOID* Ptr; + + DEBUG((DEBUG_INFO, "DxeInitializeVBoxSysTables\n")); + + Ptr = FindSMBIOSPtr(); + DEBUG((DEBUG_INFO, "SMBIOS=%p\n", Ptr)); + ASSERT(Ptr != NULL); + if (Ptr) + { + rc = ConvertAndInstallTable(&gEfiSmbiosTableGuid, Ptr); + ASSERT_EFI_ERROR (rc); + } + + Ptr = FindMPSPtr(); + DEBUG((DEBUG_INFO, "MPS=%p\n", Ptr)); + // MPS can be null in non IO-APIC configs + if (Ptr) + rc = ConvertAndInstallTable(&gEfiMpsTableGuid, Ptr); + + return EFI_SUCCESS; +} + +EFI_STATUS EFIAPI +DxeUninitializeVBoxSysTables(IN EFI_HANDLE ImageHandle) +{ + return EFI_SUCCESS; +} |