Cleanups & fixes from latest NetBSD primarily to run doscmd, etc.

GENERIC added to the compile/.cvsignore (it is used for 'make links'
for example), thus conf/GENERIC should appear magically ...

1 files changed, 130 insertions, 29 deletions

diff --git a/sys/arch/i386/include/vm86.h b/sys/arch/i386/include/vm86.h
index 1f21db3dbdc..a996017ceba 100644
--- a/sys/arch/i386/include/vm86.h
+++ b/sys/arch/i386/include/vm86.h
@@ -1,37 +1,45 @@
-/*	$NetBSD: vm86.h,v 1.1 1996/01/08 13:51:45 mycroft Exp $	*/
+/*	$OpenBSD: vm86.h,v 1.2 1996/04/17 05:19:04 mickey Exp $	*/
+/*	$NetBSD: vm86.h,v 1.4 1996/04/11 10:07:25 mycroft Exp $	*/
 
-/*
- *  Copyright (c) 1995 John T. Kohl
- *  All rights reserved.
- * 
- *  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. The name of the author may not be used to endorse or promote products
- *     derived from this software without specific prior written permission.
- * 
- * THIS SOFTWARE IS PROVIDED BY THE AUTHOR `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 AUTHOR 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
+#define	VM86_USE_VIF
+
+/*-
+ * Copyright (c) 1996 The NetBSD Foundation, Inc.
+ * All rights reserved.
+ *
+ * This code is derived from software contributed to The NetBSD Foundation
+ * by John T. Kohl and Charles M. Hannum.
+ *
+ * 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 NetBSD
+ *        Foundation, Inc. and its contributors.
+ * 4. Neither the name of The NetBSD Foundation 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 NETBSD FOUNDATION, INC. 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.
- * 
  */
 
 #define SETFLAGS(targ, new, newmask) (targ) = ((targ) & ~(newmask)) | ((new) & (newmask))
-#define VM86_EFLAGS(p)	((p)->p_addr->u_pcb.vm86_eflags)
-#define VM86_FLAGMASK(p) ((p)->p_addr->u_pcb.vm86_flagmask)
 
 #define VM86_TYPE(x)	((x) & 0xff)
 #define VM86_ARG(x)	(((x) & 0xff00) >> 8)
@@ -41,6 +49,9 @@
 #define		VM86_SIGNAL	2
 #define		VM86_UNKNOWN	3
 
+#define	VM86_SETDIRECT	(~PSL_USERSTATIC)
+#define	VM86_GETDIRECT	(VM86_SETDIRECT|PSL_MBO|PSL_MBZ)
+
 struct vm86_regs {
 	struct sigcontext vmsc;
 };
@@ -74,6 +85,96 @@ struct vm86_struct {
 #ifdef _KERNEL
 int i386_vm86 __P((struct proc *, char *, register_t *));
 void vm86_gpfault __P((struct proc *, int));
+void vm86_return __P((struct proc *, int));
+
+static __inline__ void
+clr_vif(p)
+	struct proc *p;
+{
+	struct pcb *pcb = &p->p_addr->u_pcb;
+
+#ifndef VM86_USE_VIF
+	pcb->vm86_eflags &= ~PSL_I;
+#else
+	pcb->vm86_eflags &= ~PSL_VIF;
+#endif
+}
+
+static __inline__ void
+set_vif(p)
+	struct proc *p;
+{
+	struct pcb *pcb = &p->p_addr->u_pcb;
+
+#ifndef VM86_USE_VIF
+	pcb->vm86_eflags |= PSL_I;
+	if ((pcb->vm86_eflags & (PSL_I|PSL_VIP)) == (PSL_I|PSL_VIP))
+#else
+	pcb->vm86_eflags |= PSL_VIF;
+	if ((pcb->vm86_eflags & (PSL_VIF|PSL_VIP)) == (PSL_VIF|PSL_VIP))
+#endif
+		vm86_return(p, VM86_STI);
+}
+
+static __inline__ void
+set_vflags(p, flags)
+	struct proc *p;
+	int flags;
+{
+	struct trapframe *tf = p->p_md.md_regs;
+	struct pcb *pcb = &p->p_addr->u_pcb;
+
+	SETFLAGS(pcb->vm86_eflags, flags, pcb->vm86_flagmask | ~VM86_GETDIRECT);
+	SETFLAGS(tf->tf_eflags, flags, VM86_SETDIRECT);
+#ifndef VM86_USE_VIF
+	if ((pcb->vm86_eflags & (PSL_I|PSL_VIP)) == (PSL_I|PSL_VIP))
+#else
+	if ((pcb->vm86_eflags & (PSL_VIF|PSL_VIP)) == (PSL_VIF|PSL_VIP))
+#endif
+		vm86_return(p, VM86_STI);
+}
+
+static __inline__ int
+get_vflags(p)
+	struct proc *p;
+{
+	struct trapframe *tf = p->p_md.md_regs;
+	struct pcb *pcb = &p->p_addr->u_pcb;
+	int flags = 0;
+
+	SETFLAGS(flags, pcb->vm86_eflags, pcb->vm86_flagmask | ~VM86_GETDIRECT);
+	SETFLAGS(flags, tf->tf_eflags, VM86_GETDIRECT);
+	return (flags);
+}
+
+static __inline__ void
+set_vflags_short(p, flags)
+	struct proc *p;
+	int flags;
+{
+	struct trapframe *tf = p->p_md.md_regs;
+	struct pcb *pcb = &p->p_addr->u_pcb;
+
+	SETFLAGS(pcb->vm86_eflags, flags, (pcb->vm86_flagmask | ~VM86_GETDIRECT) & 0xffff);
+	SETFLAGS(tf->tf_eflags, flags, VM86_SETDIRECT & 0xffff);
+#ifndef VM86_USE_VIF
+	if ((pcb->vm86_eflags & (PSL_I|PSL_VIP)) == (PSL_I|PSL_VIP))
+		vm86_return(p, VM86_STI);
+#endif
+}
+
+static __inline__ int
+get_vflags_short(p)
+	struct proc *p;
+{
+	struct trapframe *tf = p->p_md.md_regs;
+	struct pcb *pcb = &p->p_addr->u_pcb;
+	int flags = 0;
+
+	SETFLAGS(flags, pcb->vm86_eflags, (pcb->vm86_flagmask | ~VM86_GETDIRECT) & 0xffff);
+	SETFLAGS(flags, tf->tf_eflags, VM86_GETDIRECT & 0xffff);
+	return (flags);
+}
 #else
 int i386_vm86 __P((struct vm86_struct *vmcp));
 #endif