| 1 | /* $Id: bs3-cmn-SelProtFar32ToFlat32.c 98103 2023-01-17 14:15:46Z vboxsync $ */
|
|---|
| 2 | /** @file
|
|---|
| 3 | * BS3Kit - Bs3SelProtFar32ToFlat32
|
|---|
| 4 | */
|
|---|
| 5 |
|
|---|
| 6 | /*
|
|---|
| 7 | * Copyright (C) 2007-2023 Oracle and/or its affiliates.
|
|---|
| 8 | *
|
|---|
| 9 | * This file is part of VirtualBox base platform packages, as
|
|---|
| 10 | * available from https://www.virtualbox.org.
|
|---|
| 11 | *
|
|---|
| 12 | * This program is free software; you can redistribute it and/or
|
|---|
| 13 | * modify it under the terms of the GNU General Public License
|
|---|
| 14 | * as published by the Free Software Foundation, in version 3 of the
|
|---|
| 15 | * License.
|
|---|
| 16 | *
|
|---|
| 17 | * This program is distributed in the hope that it will be useful, but
|
|---|
| 18 | * WITHOUT ANY WARRANTY; without even the implied warranty of
|
|---|
| 19 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|---|
| 20 | * General Public License for more details.
|
|---|
| 21 | *
|
|---|
| 22 | * You should have received a copy of the GNU General Public License
|
|---|
| 23 | * along with this program; if not, see <https://www.gnu.org/licenses>.
|
|---|
| 24 | *
|
|---|
| 25 | * The contents of this file may alternatively be used under the terms
|
|---|
| 26 | * of the Common Development and Distribution License Version 1.0
|
|---|
| 27 | * (CDDL), a copy of it is provided in the "COPYING.CDDL" file included
|
|---|
| 28 | * in the VirtualBox distribution, in which case the provisions of the
|
|---|
| 29 | * CDDL are applicable instead of those of the GPL.
|
|---|
| 30 | *
|
|---|
| 31 | * You may elect to license modified versions of this file under the
|
|---|
| 32 | * terms and conditions of either the GPL or the CDDL or both.
|
|---|
| 33 | *
|
|---|
| 34 | * SPDX-License-Identifier: GPL-3.0-only OR CDDL-1.0
|
|---|
| 35 | */
|
|---|
| 36 |
|
|---|
| 37 | #include "bs3kit-template-header.h"
|
|---|
| 38 |
|
|---|
| 39 |
|
|---|
| 40 | #undef Bs3SelProtFar32ToFlat32
|
|---|
| 41 | BS3_CMN_DEF(uint32_t, Bs3SelProtFar32ToFlat32,(uint32_t off, uint16_t uSel))
|
|---|
| 42 | {
|
|---|
| 43 | uint32_t uRet;
|
|---|
| 44 | PCX86DESC pEntry;
|
|---|
| 45 | if (!(uSel & X86_SEL_LDT))
|
|---|
| 46 | pEntry = &Bs3Gdt[uSel >> X86_SEL_SHIFT];
|
|---|
| 47 | else
|
|---|
| 48 | pEntry = &Bs3Ldt[uSel >> X86_SEL_SHIFT];
|
|---|
| 49 | uRet = pEntry->Gen.u16BaseLow;
|
|---|
| 50 | uRet |= (uint32_t)pEntry->Gen.u8BaseHigh1 << 16;
|
|---|
| 51 | uRet |= (uint32_t)pEntry->Gen.u8BaseHigh2 << 24;
|
|---|
| 52 | uRet += off;
|
|---|
| 53 | return uRet;
|
|---|
| 54 | }
|
|---|
| 55 |
|
|---|
