OpenSolaris Launch

1 files changed, 87 insertions, 0 deletions

diff --git a/usr/src/uts/intel/sys/bootregs.h b/usr/src/uts/intel/sys/bootregs.h
new file mode 100644
index 0000000000..47f268381c
--- /dev/null
+++ b/usr/src/uts/intel/sys/bootregs.h
@@ -0,0 +1,87 @@
+/*
+ * CDDL HEADER START
+ *
+ * The contents of this file are subject to the terms of the
+ * Common Development and Distribution License, Version 1.0 only
+ * (the "License").  You may not use this file except in compliance
+ * with the License.
+ *
+ * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
+ * or http://www.opensolaris.org/os/licensing.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ *
+ * When distributing Covered Code, include this CDDL HEADER in each
+ * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
+ * If applicable, add the following below this CDDL HEADER, with the
+ * fields enclosed by brackets "[]" replaced with your own identifying
+ * information: Portions Copyright [yyyy] [name of copyright owner]
+ *
+ * CDDL HEADER END
+ */
+/*
+ * Copyright 2004 Sun Microsystems, Inc.  All rights reserved.
+ * Use is subject to license terms.
+ */
+
+#ifndef	_SYS_BOOTREGS_H
+#define	_SYS_BOOTREGS_H
+
+#pragma ident	"%Z%%M%	%I%	%E% SMI"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#if defined(_KERNEL) || defined(_BOOT)
+
+/*
+ *  This structure is used by bootops to save/restore registers when
+ *  transferring between protected and realmode code.
+ *
+ *  NOTE: The following macros require an ANSI compiler!
+ */
+
+#define	i8080reg(r) union {  /* 8080-like "general purpose" registers */\
+	uint32_t e ## r ## x;					\
+	struct { uint16_t r ## x; } word;				\
+	struct { uint8_t  r ## l, r ## h; } byte;			\
+}
+
+#define	i8086reg(r) union { /* 16/32-bit "special purpose" registers  */\
+	uint32_t e ## r;						\
+	struct { uint16_t r; } word;				\
+}
+
+struct bop_regs {
+	/*
+	 *  Machine state structure for realmode <-> protected mode callout
+	 *  operations:
+	 */
+
+	i8080reg(a) eax;	/* The so-called "general purpose" registers */
+	i8080reg(d) edx;
+	i8080reg(c) ecx;
+	i8080reg(b) ebx;
+
+	i8086reg(bp) ebp;	/* 16/32-bit "pointer" registers */
+	i8086reg(si) esi;
+	i8086reg(di) edi;
+
+	uint16_t ds;	/* Segment registers */
+	uint16_t es;
+	uint16_t fs;
+	uint16_t gs;
+
+	uint32_t eflags;
+};
+
+#undef	i8080reg
+#undef	i8086reg
+#endif	/* _KERNEL || _BOOT */
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif	/* _SYS_BOOTREGS_H */