oops, forgot to do ``cvs add'' first.

5 files changed, 338 insertions, 0 deletions

diff --git a/lib/libc/i386/sys/i386_get_ioperm.2 b/lib/libc/i386/sys/i386_get_ioperm.2
new file mode 100644
index 0000000..4fc7593
--- /dev/null
+++ b/lib/libc/i386/sys/i386_get_ioperm.2
@@ -0,0 +1,84 @@
+.\" Copyright (c) 1998 Jonathan Lemon
+.\" 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.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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.
+.\"
+.\"	$Id$
+.\"
+.Dd July 27, 1998
+.Os
+.Dt I386_GET_IOPERM 2
+.Sh NAME
+.Nm i386_get_ioperm ,
+.Nm i386_set_ioperm
+.Nd manage per-process access to the i386 I/O port space
+.Sh SYNOPSIS
+.Fd #include <machine/sysarch.h>
+.Ft int
+.Fn i386_get_ioperm "u_int start" "u_int *length" "int *enable"
+.Ft int
+.Fn i386_set_ioperm "u_int start" "u_int length" "int enable"
+.Sh DESCRIPTION
+.Fn i386_get_ioperm
+will return the permission for the process' I/O port space in the
+.Fa *enable
+argument.  The port range starts at
+.Fa start
+and the number of contiguous entries will be returned in
+.Fa *length .
+.Pp
+.Fn i386_set_ioperm
+will set access to a range of I/O ports described by the
+.Fa start 
+and 
+.Fa length
+arguments to the state specified by the
+.Fa enable
+argument.
+.Sh RETURN VALUES
+Upon successful completion,
+.Fn i386_get_ioperm
+and
+.Fn i386_set_ioperm
+return the value of 0.
+Otherwise, a value of -1 is returned and the global
+variable
+.Va errno
+is set to indicate the error.
+.Sh ERRORS
+.Fn i386_get_ioperm
+and
+.Fn i386_set_ioperm
+will fail if:
+.Bl -tag -width [EINVAL]
+.It Bq Er EINVAL
+An invalid range was specified by the  
+.Fa start
+or
+.Fa length
+arguments.
+.It Bq Er EPERM
+The caller of i386_set_ioperm was not the superuser.
+.El
+.Sh AUTHORS
+This man page was written by
+.An Jonathan Lemon .
diff --git a/lib/libc/i386/sys/i386_get_ioperm.c b/lib/libc/i386/sys/i386_get_ioperm.c
new file mode 100644
index 0000000..75793b4
--- /dev/null
+++ b/lib/libc/i386/sys/i386_get_ioperm.c
@@ -0,0 +1,58 @@
+/*-
+ * Copyright (c) 1998 Jonathan Lemon
+ * 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.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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.
+ *
+ *	$Id$
+ */
+
+#if defined(LIBC_RCS) && !defined(lint)
+static const char rcsid[] = "$Id$";
+#endif /* LIBC_RCS and not lint */
+
+#include <sys/types.h>
+#include <machine/sysarch.h>
+
+struct parms {
+	u_int 		start;
+        u_int		length;
+        int	 	enable;
+};
+
+int
+i386_get_ioperm(u_int start, u_int *length, int *enable)
+{
+	struct parms p;
+	int error;
+
+	p.start = start;
+	p.length = *length;
+	p.enable = *enable;
+
+	error = sysarch(I386_GET_IOPERM, (char *)&p);
+
+	*length = p.length;
+	*enable = p.enable;
+
+	return (error);
+}
diff --git a/lib/libc/i386/sys/i386_set_ioperm.c b/lib/libc/i386/sys/i386_set_ioperm.c
new file mode 100644
index 0000000..9b5bcd0
--- /dev/null
+++ b/lib/libc/i386/sys/i386_set_ioperm.c
@@ -0,0 +1,52 @@
+/*-
+ * Copyright (c) 1998 Jonathan Lemon
+ * 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.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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.
+ *
+ *	$Id$
+ */
+
+#if defined(LIBC_RCS) && !defined(lint)
+static const char rcsid[] = "$Id$";
+#endif /* LIBC_RCS and not lint */
+
+#include <sys/types.h>
+#include <machine/sysarch.h>
+
+struct parms {
+	u_int 		start;
+        u_int 		length;
+        int 		enable;
+};
+
+int
+i386_set_ioperm(u_int start, u_int length, int enable)
+{
+	struct parms p;
+
+	p.start = start;
+	p.length = length;
+	p.enable = enable;
+
+	return (sysarch(I386_SET_IOPERM, (char *)&p));
+}
diff --git a/lib/libc/i386/sys/i386_vm86.2 b/lib/libc/i386/sys/i386_vm86.2
new file mode 100644
index 0000000..5ba6daf
--- /dev/null
+++ b/lib/libc/i386/sys/i386_vm86.2
@@ -0,0 +1,95 @@
+.\" Copyright (c) 1998 Jonathan Lemon
+.\" 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.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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.
+.\"
+.\"	$Id$
+.\"
+.Dd July 27, 1998
+.Os
+.Dt I386_VM86 2
+.Sh NAME
+.Nm i386_vm86
+.Nd control vm86-related functions
+.Sh SYNOPSIS
+.Fd #include <machine/sysarch.h>
+.Fd #include <machine/vm86.h>
+.Ft int
+.Fn i386_vm86 "int function" "void *data"
+.Sh DESCRIPTION
+.Fn i386_vm86
+is used to call various vm86 related functions.
+.Fa function
+can be one of the following values:
+.Bl -tag -offset indent -width VM86_SET_VME
+.It Dv VM86_INIT
+This will initialize the kernel's vm86 parameter area for the
+process, and permit the process to make vm86 calls.
+.Fa data
+points to the following structure:
+.Bd -literal
+struct vm86_init_args {
+        int     debug;
+        int     cpu_type;
+        u_char  int_map[32];
+};
+.Ed
+.Pp
+.Fa debug
+is used to turn on debugging code.
+.Fa cpu_type
+controls the type of CPU being emulated, and is currently unimplemented.
+.Fa int_map
+is a bitmap which determines whether vm86 interrupts should be handled
+in vm86 mode, or reflected back to the process.  If the
+.Em Nth
+bit is set, the interrupt will be reflected to the process, otherwise
+it will be dispatched by the vm86 interrupt table.
+.\" .It Dv VM86_SET_VME
+.\" .It Dv VM86_GET_VME
+.\" .It Dv VM86_INTCALL
+.El
+.Pp
+vm86 mode is entered by calling 
+.Xr sigreturn 2
+with the correct machine context for vm86, and with the
+.Em PSL_VM
+bit set.  Control returns to the process upon delivery of a signal.
+.Sh RETURN VALUES
+Upon successful completion,
+.Fn i386_vm86
+will return the value of 0.
+Otherwise, a value of -1 is returned and the global
+variable
+.Va errno
+is set to indicate the error.
+.Sh ERRORS
+.Fn i386_vm86
+will fail if:
+.Bl -tag -width [ENOMEM]
+.It Bq Er EINVAL
+The kernel does not have vm86 support, or an invalid function was specified.
+.It Bq Er ENOMEM
+There is not enough memory to initialize the kernel data structures.
+.Sh AUTHORS
+This man page was written by
+.An Jonathan Lemon .
diff --git a/lib/libc/i386/sys/i386_vm86.c b/lib/libc/i386/sys/i386_vm86.c
new file mode 100644
index 0000000..e5fdad6
--- /dev/null
+++ b/lib/libc/i386/sys/i386_vm86.c
@@ -0,0 +1,49 @@
+/*-
+ * Copyright (c) 1998 Jonathan Lemon
+ * 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.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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.
+ *
+ *	$Id$
+ */
+
+#if defined(LIBC_RCS) && !defined(lint)
+static const char rcsid[] = "$Id$";
+#endif /* LIBC_RCS and not lint */
+
+#include <machine/sysarch.h>
+
+struct parms {
+	int	sub_op;
+	void 	*sub_args;
+};
+
+int
+i386_vm86(int fcn, void *data)
+{
+	struct parms p;
+
+	p.sub_op = fcn;
+	p.sub_args = data;
+
+	return (sysarch(I386_VM86, (void *)&p));
+}