Initial import, 0.1 + pk 0.2.4-B1

1 files changed, 78 insertions, 0 deletions

diff --git a/sys/i386/include/tss.h b/sys/i386/include/tss.h
new file mode 100644
index 000000000000..8ba140d6c7ec
--- /dev/null
+++ b/sys/i386/include/tss.h
@@ -0,0 +1,78 @@
+/*-
+ * Copyright (c) 1990 The Regents of the University of California.
+ * All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * William Jolitz.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by the University of
+ *	California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ *	@(#)tss.h	5.4 (Berkeley) 1/18/91
+ */
+
+/*
+ * Intel 386 Context Data Type
+ */
+
+struct i386tss {
+	int	tss_link;	/* actually 16 bits: top 16 bits must be zero */
+	int	tss_esp0; 	/* kernel stack pointer priviledge level 0 */
+#define	tss_ksp	tss_esp0
+	int	tss_ss0;	/* actually 16 bits: top 16 bits must be zero */
+	int	tss_esp1; 	/* kernel stack pointer priviledge level 1 */
+	int	tss_ss1;	/* actually 16 bits: top 16 bits must be zero */
+	int	tss_esp2; 	/* kernel stack pointer priviledge level 2 */
+	int	tss_ss2;	/* actually 16 bits: top 16 bits must be zero */
+	/* struct  ptd *tss_cr3; 	/* page table directory */
+	int	tss_cr3; 	/* page table directory */
+#define	tss_ptd	tss_cr3
+	int	tss_eip; 	/* program counter */
+#define	tss_pc	tss_eip
+	int	tss_eflags; 	/* program status longword */
+#define	tss_psl	tss_eflags
+	int	tss_eax; 
+	int	tss_ecx; 
+	int	tss_edx; 
+	int	tss_ebx; 
+	int	tss_esp; 	/* user stack pointer */
+#define	tss_usp	tss_esp
+	int	tss_ebp; 	/* user frame pointer */
+#define	tss_fp	tss_ebp
+	int	tss_esi; 
+	int	tss_edi; 
+	int	tss_es;		/* actually 16 bits: top 16 bits must be zero */
+	int	tss_cs;		/* actually 16 bits: top 16 bits must be zero */
+	int	tss_ss;		/* actually 16 bits: top 16 bits must be zero */
+	int	tss_ds;		/* actually 16 bits: top 16 bits must be zero */
+	int	tss_fs;		/* actually 16 bits: top 16 bits must be zero */
+	int	tss_gs;		/* actually 16 bits: top 16 bits must be zero */
+	int	tss_ldt;	/* actually 16 bits: top 16 bits must be zero */
+	int	tss_ioopt;	/* options & io offset bitmap: currently zero */
+				/* XXX unimplemented .. i/o permission bitmap */
+};