diff options
Diffstat (limited to '')
-rw-r--r-- | src/VBox/ValidationKit/bootsectors/bs3kit/bs3-rm-InitGdt.c | 71 |
1 files changed, 71 insertions, 0 deletions
diff --git a/src/VBox/ValidationKit/bootsectors/bs3kit/bs3-rm-InitGdt.c b/src/VBox/ValidationKit/bootsectors/bs3kit/bs3-rm-InitGdt.c new file mode 100644 index 00000000..9187875b --- /dev/null +++ b/src/VBox/ValidationKit/bootsectors/bs3kit/bs3-rm-InitGdt.c @@ -0,0 +1,71 @@ +/* $Id: bs3-rm-InitGdt.c $ */ +/** @file + * BS3Kit - Bs3InitGdt + */ + +/* + * 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 <iprt/asm.h> + + +/********************************************************************************************************************************* +* Global Variables * +*********************************************************************************************************************************/ + + +BS3_DECL_FAR(void) Bs3InitGdt_rm_far(void) +{ +#if 0 /* This totaly messes us up when going back to raw-mode for BIOS work. */ + Bs3Gdte_R0_CS16.Gen.u16LimitLow = Bs3Text16_Size - 1; + Bs3Gdte_R1_CS16.Gen.u16LimitLow = Bs3Text16_Size - 1; + Bs3Gdte_R2_CS16.Gen.u16LimitLow = Bs3Text16_Size - 1; + Bs3Gdte_R3_CS16.Gen.u16LimitLow = Bs3Text16_Size - 1; +#endif + Bs3Gdte_RMTEXT16_CS.Gen.u16LimitLow = Bs3RmText16_Size - 1; + Bs3Gdte_X0TEXT16_CS.Gen.u16LimitLow = Bs3X0Text16_Size - 1; + Bs3Gdte_X1TEXT16_CS.Gen.u16LimitLow = Bs3X1Text16_Size - 1; + + Bs3Gdte_RMTEXT16_CS.Gen.u16BaseLow = (uint16_t)Bs3RmText16_FlatAddr; + Bs3Gdte_X0TEXT16_CS.Gen.u16BaseLow = (uint16_t)Bs3X0Text16_FlatAddr; + Bs3Gdte_X1TEXT16_CS.Gen.u16BaseLow = (uint16_t)Bs3X1Text16_FlatAddr; + + Bs3Gdte_RMTEXT16_CS.Gen.u8BaseHigh1 = (uint8_t)(Bs3RmText16_FlatAddr >> 16); + Bs3Gdte_X0TEXT16_CS.Gen.u8BaseHigh1 = (uint8_t)(Bs3X0Text16_FlatAddr >> 16); + Bs3Gdte_X1TEXT16_CS.Gen.u8BaseHigh1 = (uint8_t)(Bs3X1Text16_FlatAddr >> 16); +} + |