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);
+}
+