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Diffstat (limited to '')
-rw-r--r-- | src/VBox/ValidationKit/bootsectors/bs3kit/bs3-rm-InitAll.c | 100 |
1 files changed, 100 insertions, 0 deletions
diff --git a/src/VBox/ValidationKit/bootsectors/bs3kit/bs3-rm-InitAll.c b/src/VBox/ValidationKit/bootsectors/bs3kit/bs3-rm-InitAll.c new file mode 100644 index 00000000..3d22fb5c --- /dev/null +++ b/src/VBox/ValidationKit/bootsectors/bs3kit/bs3-rm-InitAll.c @@ -0,0 +1,100 @@ +/* $Id: bs3-rm-InitAll.c $ */ +/** @file + * BS3Kit - Initialize all components, real mode. + */ + +/* + * Copyright (C) 2007-2023 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>. + * + * 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 * +*********************************************************************************************************************************/ +//#define BS3_USE_RM_TEXT_SEG 1 +#include "bs3kit-template-header.h" +#include "bs3-cmn-test.h" +#include <iprt/asm-amd64-x86.h> + +BS3_MODE_PROTO_NOSB(void, Bs3EnteredMode,(void)); + + +BS3_DECL(void) Bs3InitAll_rm(void) +{ + uint8_t volatile BS3_FAR *pcTicksFlpyOff; + + /* + * Detect CPU first as the memory init code will otherwise use 386 + * instrunctions and cause trouble on older CPUs. + */ + Bs3CpuDetect_rm_far(); + Bs3InitMemory_rm_far(); + Bs3InitGdt_rm_far(); + + /* + * Before we disable all interrupts, try convince the BIOS to stop the + * floppy motor, as it is kind of disturbing when the floppy light remains + * on for the whole testcase execution. + */ + ASMIntDisable(); /* (probably already disabled, but no guarantees) */ + pcTicksFlpyOff = (uint8_t volatile BS3_FAR *)BS3_FP_MAKE(0x40, 0x40); + if (*pcTicksFlpyOff) + { + uint32_t volatile BS3_FAR *pcTicks = (uint32_t volatile BS3_FAR *)BS3_FP_MAKE(0x40, 0x6c); + uint32_t cInitialTicks; + + *pcTicksFlpyOff = 1; /* speed up the countdown, don't want to wait for two seconds here. */ + cInitialTicks = *pcTicks; + ASMIntEnable(); + + while (*pcTicks == cInitialTicks) + ASMHalt(); + } + ASMIntDisable(); + Bs3PicSetup(false /*fForcedReInit*/); + + /* + * Initialize IDTs and such. + */ + if (g_uBs3CpuDetected & BS3CPU_F_LONG_MODE) + Bs3Trap64Init(); + if ((g_uBs3CpuDetected & BS3CPU_TYPE_MASK) >= BS3CPU_80386) + Bs3Trap32Init(); + if ((g_uBs3CpuDetected & BS3CPU_TYPE_MASK) >= BS3CPU_80286) + Bs3Trap16Init(); + Bs3TrapRmV86Init(); + + /* + * Perform a real-mode enter to make some final environment adjustments + * (like installing our syscall). + */ + Bs3EnteredMode_rm(); +} + |