Initial source

1 files changed, 45 insertions, 0 deletions

diff --git a/i386/util/gdt_sels.h b/i386/util/gdt_sels.h
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+++ b/i386/util/gdt_sels.h
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+/* 
+ * Copyright (c) 1995-1994 The University of Utah and
+ * the Computer Systems Laboratory at the University of Utah (CSL).
+ * All rights reserved.
+ *
+ * Permission to use, copy, modify and distribute this software is hereby
+ * granted provided that (1) source code retains these copyright, permission,
+ * and disclaimer notices, and (2) redistributions including binaries
+ * reproduce the notices in supporting documentation, and (3) all advertising
+ * materials mentioning features or use of this software display the following
+ * acknowledgement: ``This product includes software developed by the
+ * Computer Systems Laboratory at the University of Utah.''
+ *
+ * THE UNIVERSITY OF UTAH AND CSL ALLOW FREE USE OF THIS SOFTWARE IN ITS "AS
+ * IS" CONDITION.  THE UNIVERSITY OF UTAH AND CSL DISCLAIM ANY LIABILITY OF
+ * ANY KIND FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
+ *
+ * CSL requests users of this software to return to csl-dist@cs.utah.edu any
+ * improvements that they make and grant CSL redistribution rights.
+ *
+ *      Author: Bryan Ford, University of Utah CSL
+ */
+
+#include "config.h"
+
+/* Kernel segment descriptors (32-bit flat address space).  */
+gdt_sel(KERNEL_CS)
+gdt_sel(KERNEL_DS)
+
+/* Corresponding 16-bit descriptors for protected-mode entry and exit.  */
+gdt_sel(KERNEL_16_CS)
+gdt_sel(KERNEL_16_DS)
+
+/* Code and data segments that always maps directly to flat, linear memory.  */
+gdt_sel(LINEAR_CS)
+gdt_sel(LINEAR_DS)
+
+/* Standard LDT and TSS descriptors.  */
+#ifdef ENABLE_KERNEL_LDT
+gdt_sel(KERNEL_LDT)
+#endif
+#ifdef ENABLE_KERNEL_TSS
+gdt_sel(KERNEL_TSS)
+#endif
+