diff options
Diffstat (limited to 'lib/libarch/amd64')
| -rw-r--r-- | lib/libarch/amd64/Makefile | 14 | ||||
| -rw-r--r-- | lib/libarch/amd64/amd64_get_ioperm.2 | 116 | ||||
| -rw-r--r-- | lib/libarch/amd64/amd64_get_ioperm.c | 56 | ||||
| -rw-r--r-- | lib/libarch/amd64/amd64_get_ldt.2 | 113 | ||||
| -rw-r--r-- | lib/libarch/amd64/amd64_get_ldt.c | 50 | ||||
| -rw-r--r-- | lib/libarch/amd64/amd64_iopl.2 | 85 | ||||
| -rw-r--r-- | lib/libarch/amd64/amd64_iopl.c | 56 | ||||
| -rw-r--r-- | lib/libarch/amd64/amd64_set_ioperm.c | 56 | ||||
| -rw-r--r-- | lib/libarch/amd64/amd64_set_ldt.c | 50 | ||||
| -rw-r--r-- | lib/libarch/amd64/amd64_vm86.2 | 117 | ||||
| -rw-r--r-- | lib/libarch/amd64/amd64_vm86.c | 55 |
11 files changed, 761 insertions, 7 deletions
diff --git a/lib/libarch/amd64/Makefile b/lib/libarch/amd64/Makefile index ec8831b5ccf..961c5792f14 100644 --- a/lib/libarch/amd64/Makefile +++ b/lib/libarch/amd64/Makefile @@ -1,17 +1,17 @@ -# $OpenBSD: Makefile,v 1.2 2004/02/27 17:36:14 deraadt Exp $ +# $OpenBSD: Makefile,v 1.3 2004/02/27 23:44:56 deraadt Exp $ # $NetBSD: Makefile,v 1.1 1996/02/21 02:45:47 jtk Exp $ -MAN+= x86_64_get_ldt.2 \ - x86_64_iopl.2 x86_64_get_ioperm.2 +MAN+= amd64_get_ldt.2 \ + amd64_iopl.2 amd64_get_ioperm.2 MANSUBDIR=amd64 -MLINKS+=x86_64_get_ldt.2 x86_64_set_ldt.2 \ - x86_64_get_ioperm.2 x86_64_set_ioperm.2 +MLINKS+=amd64_get_ldt.2 amd64_set_ldt.2 \ + amd64_get_ioperm.2 amd64_set_ioperm.2 .if ${MACHINE_ARCH} == "amd64" .PATH: ${LIBC}/amd64 NOPIC= -SRCS+= x86_64_get_ldt.c x86_64_set_ldt.c \ - x86_64_iopl.c x86_64_get_ioperm.c x86_64_set_ioperm.c +SRCS+= amd64_get_ldt.c amd64_set_ldt.c \ + amd64_iopl.c amd64_get_ioperm.c amd64_set_ioperm.c .include <bsd.lib.mk> .else NOPROG= diff --git a/lib/libarch/amd64/amd64_get_ioperm.2 b/lib/libarch/amd64/amd64_get_ioperm.2 new file mode 100644 index 00000000000..a03416f0936 --- /dev/null +++ b/lib/libarch/amd64/amd64_get_ioperm.2 @@ -0,0 +1,116 @@ +.\" $OpenBSD: amd64_get_ioperm.2,v 1.1 2004/02/27 23:44:56 deraadt Exp $ +.\" $NetBSD: amd64_get_ioperm.2,v 1.3 1996/02/27 22:57:17 jtc Exp $ +.\" +.\" 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. +.\" +.Dd October 14, 1995 +.Dt AMD64_GET_IOPERM 2 +.Os +.Sh NAME +.Nm amd64_get_ioperm , +.Nm amd64_set_ioperm +.Nd manage amd64 per-process I/O permission bitmap +.Sh SYNOPSIS +.Fd #include <sys/types.h> +.Fd #include <machine/sysarch.h> +.Ft int +.Fn amd64_get_ioperm "u_long *iomap" +.Ft int +.Fn amd64_set_ioperm "u_long *iomap" +.Sh DESCRIPTION +.Fn amd64_get_ioperm +copies the current I/O permission bitmap into the memory referenced by +.Fa iomap . +.Pp +.Fn amd64_set_ioperm +sets the I/O permission bitmap from the data pointed to by +.Fa iomap . +This call is restricted to the superuser. +.Pp +The permission bitmap contains 1024 bits in 32 longwords. +If bit +.Va n +is clear in the bitmap, then access is granted to I/O port +.Va n . +If bit +.Va n +is set in the bitmap, then an attempt to access I/O port +.Va n +results in delivery of a +.Dv SIGBUS +signal unless the process's I/O permission level would grant I/O access. +.Pp +.Sy Note: +Code using the +.Fn amd64_get_ioperm +and +.Fn amd64_set_ioperm +functions must be compiled using +.Cm -lamd64 . +.Sh RETURN VALUES +Upon successful completion, +.Fn amd64_get_ioperm +and +.Fn amd64_set_ioperm +return 0. +Otherwise, a value of \-1 is returned and the global variable +.Va errno +is set to indicate the error. +.Sh ERRORS +.Fn amd64_get_ioperm +and +.Fn amd64_set_ioperm +will fail if: +.Bl -tag -width [EINVAL] +.It Bq Er EFAULT +.Fa iomap +points outside the process's allocated address space. +.It Bq Er EPERM +The caller was not the superuser. +.El +.Sh SEE ALSO +.Xr amd64_iopl 2 +.Rs +.%A Intel +.%T AMD64 Microprocessor Programmer's Reference Manual +.Re +.Sh WARNING +You can really hose your machine if you enable user-level I/O and +write to hardware ports without care. +.Sh BUGS +The bitmap should really cover 65536 bits, but that's just too big for +allocation in a kernel structure. +If you need access to ports beyond 1024, use +.Xr amd64_iopl 2 . diff --git a/lib/libarch/amd64/amd64_get_ioperm.c b/lib/libarch/amd64/amd64_get_ioperm.c new file mode 100644 index 00000000000..bf5a7d5a7a2 --- /dev/null +++ b/lib/libarch/amd64/amd64_get_ioperm.c @@ -0,0 +1,56 @@ +/* $OpenBSD: amd64_get_ioperm.c,v 1.1 2004/02/27 23:44:56 deraadt Exp $ */ +/* $NetBSD: amd64_get_ioperm.c,v 1.2 1996/02/27 22:57:22 jtc Exp $ */ + +/*- + * 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. + */ + +#include <sys/cdefs.h> +#include <sys/types.h> + +#include <machine/segments.h> +#include <machine/sysarch.h> + +int +amd64_get_ioperm(iomap) + u_long *iomap; +{ + struct amd64_get_ioperm_args p; + + p.iomap = iomap; + + /* LINTED pointer casts may be troublesome */ + return sysarch(AMD64_GET_IOPERM, (char *)&p); +} diff --git a/lib/libarch/amd64/amd64_get_ldt.2 b/lib/libarch/amd64/amd64_get_ldt.2 new file mode 100644 index 00000000000..29531e21ef8 --- /dev/null +++ b/lib/libarch/amd64/amd64_get_ldt.2 @@ -0,0 +1,113 @@ +.\" $OpenBSD: amd64_get_ldt.2,v 1.1 2004/02/27 23:44:56 deraadt Exp $ +.\" +.\" Copyright (c) 1980, 1991 Regents of the University of California. +.\" 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. 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. +.\" +.\" from: @(#)fork.2 6.5 (Berkeley) 3/10/91 +.\" $NetBSD: amd64_get_ldt.2,v 1.3 1996/01/05 14:56:44 pk Exp $ +.\" +.Dd September 20, 1993 +.Dt AMD64_GET_LDT 2 +.Os +.Sh NAME +.Nm amd64_get_ldt , +.Nm amd64_set_ldt +.Nd manage amd64 per-process Local Descriptor Table entries +.Sh SYNOPSIS +.Fd #include <sys/types.h> +.Fd #include <machine/segments.h> +.Fd #include <machine/sysarch.h> +.Ft int +.Fn amd64_get_ldt "int start_sel" "union descriptor *descs" "int num_sels" +.Ft int +.Fn amd64_set_ldt "int start_sel" "union descriptor *descs" "int num_sels" +.Sh DESCRIPTION +.Fn amd64_get_ldt +will return the list of amd64 descriptors that the process has in its +LDT. +.Fn amd64_set_ldt +will set a list of amd64 descriptors for the current process in its +LDT. +Both routines accept a starting selector number +.Fa start_sel , +an array of memory that +will contain the descriptors to be set or returned +.Fa descs , +and the number of entries to set or return +.Fa num_sels . +.Pp +The argument +.Fa descs +can be either segment_descriptor or gate_descriptor, as defined in +.Ao Pa amd64/segments.h Ac . +These structures are defined by the architecture +as disjoint bit-fields, so care must be taken in constructing them. +.Pp +Before this API can be used the functionality has to be enabled +using the machdep.userldt +.Xr sysctl 8 +variable. +.Pp +.Sy Note: +Code using the +.Fn amd64_get_ldt +and +.Fn amd64_set_ldt +functions must be compiled using +.Cm -lamd64 . +.Sh RETURN VALUES +Upon successful completion, +.Fn amd64_get_ldt +returns the number of descriptors currently in the LDT. +.Fn amd64_set_ldt +returns the first selector set. +Otherwise, a value of \-1 is returned and the global +variable +.Va errno +is set to indicate the error. +.Sh ERRORS +.Fn amd64_get_ldt +and +.Fn amd64_set_ldt +will fail if: +.Bl -tag -width [EINVAL] +.It Bq Er EINVAL +An inappropriate parameter was used for +.Fa start_sel +or +.Fa num_sels . +.It Bq Er EACCES +The caller attempted to use a descriptor that would +circumvent protection or cause a failure. +.El +.Sh REFERENCES +.Rs +.%A Intel +.%T AMD64 Microprocessor Programmer's Reference Manual +.Re +.Sh WARNING +You can really hose your process using this. diff --git a/lib/libarch/amd64/amd64_get_ldt.c b/lib/libarch/amd64/amd64_get_ldt.c new file mode 100644 index 00000000000..4989f9787be --- /dev/null +++ b/lib/libarch/amd64/amd64_get_ldt.c @@ -0,0 +1,50 @@ +/* + * Copyright (c) 1993 John Brezak + * 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 + * POSSIBILITY OF SUCH DAMAGE. + * + */ + +#include <sys/cdefs.h> +#include <sys/types.h> + +#include <machine/segments.h> +#include <machine/sysarch.h> + +int +amd64_get_ldt(start, desc, num) + int start; + union descriptor *desc; + int num; +{ + struct amd64_get_ldt_args p; + + p.start = start; + p.desc = desc; + p.num = num; + + /* LINTED pointer casts may be troublesome */ + return sysarch(AMD64_GET_LDT, (char *)&p); +} diff --git a/lib/libarch/amd64/amd64_iopl.2 b/lib/libarch/amd64/amd64_iopl.2 new file mode 100644 index 00000000000..d473cd8a709 --- /dev/null +++ b/lib/libarch/amd64/amd64_iopl.2 @@ -0,0 +1,85 @@ +.\" $OpenBSD: amd64_iopl.2,v 1.1 2004/02/27 23:44:56 deraadt Exp $ +.\" $NetBSD: amd64_iopl.2,v 1.3 1996/02/27 22:57:25 jtc Exp $ +.\" +.\" 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. +.\" +.Dd October 14, 1995 +.Dt AMD64_IOPL 2 +.Os +.Sh NAME +.Nm amd64_iopl +.Nd change the amd64 I/O privilege level +.Sh SYNOPSIS +.Fd #include <sys/types.h> +.Fd #include <machine/sysarch.h> +.Ft int +.Fn amd64_iopl "int iopl" +.Sh DESCRIPTION +.Fn amd64_iopl +sets the amd64 I/O privilege level to the value specified by +.Ar iopl . +This call is restricted to the superuser. +.Pp +.Sy Note: +Code using the +.Fn amd64_iopl +function must be compiled using +.Cm -lamd64 . +.Sh RETURN VALUES +Upon successful completion, +.Fn amd64_iopl +returns 0. +Otherwise, a value of \-1 is returned and the global +variable +.Va errno +is set to indicate the error. +.Sh ERRORS +.Fn amd64_iopl +will fail if: +.Bl -tag -width [EINVAL] +.It Bq Er EPERM +The caller was not the superuser. +.El +.Sh SEE ALSO +.Xr amd64_get_ioperm 2 , +.Xr amd64_set_ioperm 2 +.Sh REFERENCES +.Rs +.%A Intel +.%T AMD64 Microprocessor Programmer's Reference Manual +.Re +.Sh WARNING +You can really hose your machine if you enable user-level I/O and +write to hardware ports without care. diff --git a/lib/libarch/amd64/amd64_iopl.c b/lib/libarch/amd64/amd64_iopl.c new file mode 100644 index 00000000000..6570496737a --- /dev/null +++ b/lib/libarch/amd64/amd64_iopl.c @@ -0,0 +1,56 @@ +/* $OpenBSD: amd64_iopl.c,v 1.1 2004/02/27 23:44:56 deraadt Exp $ */ +/* $NetBSD: i386_iopl.c,v 1.2 1996/02/27 22:57:29 jtc Exp $ */ + +/*- + * 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. + */ + +#include <sys/cdefs.h> +#include <sys/types.h> + +#include <machine/segments.h> +#include <machine/sysarch.h> + +int +amd64_iopl(iopl) + int iopl; +{ + struct amd64_iopl_args p; + + p.iopl = iopl; + + /* LINTED pointer casts may be troublesome */ + return sysarch(AMD64_IOPL, (char *)&p); +} diff --git a/lib/libarch/amd64/amd64_set_ioperm.c b/lib/libarch/amd64/amd64_set_ioperm.c new file mode 100644 index 00000000000..a02c1049ab2 --- /dev/null +++ b/lib/libarch/amd64/amd64_set_ioperm.c @@ -0,0 +1,56 @@ +/* $OpenBSD: amd64_set_ioperm.c,v 1.1 2004/02/27 23:44:56 deraadt Exp $ */ +/* $NetBSD: amd64_set_ioperm.c,v 1.2 1996/02/27 22:57:31 jtc Exp $ */ + +/*- + * 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. + */ + +#include <sys/cdefs.h> +#include <sys/types.h> + +#include <machine/segments.h> +#include <machine/sysarch.h> + +int +amd64_set_ioperm(iomap) + u_long *iomap; +{ + struct amd64_set_ioperm_args p; + + p.iomap = iomap; + + /* LINTED pointer casts may be troublesome */ + return sysarch(AMD64_SET_IOPERM, (char *)&p); +} diff --git a/lib/libarch/amd64/amd64_set_ldt.c b/lib/libarch/amd64/amd64_set_ldt.c new file mode 100644 index 00000000000..e64b1e8df80 --- /dev/null +++ b/lib/libarch/amd64/amd64_set_ldt.c @@ -0,0 +1,50 @@ +/* + * Copyright (c) 1993 John Brezak + * 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 + * POSSIBILITY OF SUCH DAMAGE. + * + */ + +#include <sys/cdefs.h> +#include <sys/types.h> + +#include <machine/segments.h> +#include <machine/sysarch.h> + +int +amd64_set_ldt(start, desc, num) + int start; + union descriptor *desc; + int num; +{ + struct amd64_set_ldt_args p; + + p.start = start; + p.desc = desc; + p.num = num; + + /* LINTED pointer casts may be troublesome */ + return sysarch(AMD64_SET_LDT, (char *)&p); +} diff --git a/lib/libarch/amd64/amd64_vm86.2 b/lib/libarch/amd64/amd64_vm86.2 new file mode 100644 index 00000000000..eb8b50a7795 --- /dev/null +++ b/lib/libarch/amd64/amd64_vm86.2 @@ -0,0 +1,117 @@ +.\" $OpenBSD: amd64_vm86.2,v 1.1 2004/02/27 23:44:56 deraadt Exp $ +.\" $NetBSD: amd64_vm86.2,v 1.1 1996/02/21 00:21:52 jtk Exp $ +.\" +.\" Copyright (c) 1996 The NetBSD Foundation, Inc. +.\" All rights reserved. +.\" +.\" This code is derived from software contributed to The NetBSD Foundation +.\" by John Kohl. +.\" +.\" 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. +.\" +.\" from: @(#)fork.2 6.5 (Berkeley) 3/10/91 +.\" +.Dd February 20, 1996 +.Dt AMD64_VM86 2 +.Os +.Sh NAME +.Nm amd64_vm86 +.Nd set virtual 8086 processor registers and mode +.Sh SYNOPSIS +.Fd #include <sys/types.h> +.Fd #include <signal.h> +.Fd #include <machine/segments.h> +.Fd #include <machine/sysarch.h> +.Fd #include <machine/vm86.h> +.Ft int +.Fn amd64_vm86 "struct vm86_struct *vmcp" +.Sh DESCRIPTION +.Fn amd64_vm86 +will set the process into virtual 8086 mode using the registers and +selectors specified by the context pointed to by +.Ar vmcp . +The processor registers are set from +.Ar vmcp->substr.regs , +and the emulated processor type from +.Ar vmcp->substr.ss_cpu_type . +.Pp +The kernel keeps a pointer to the context, and uses the tables stored at +.Ar vmcp->int_byuser +and +.Ar vmcp->int21_byuser +for fast virtual interrupt handling. +If the +.Ar n Ns Li th +bit is clear in the first of +these arrays, then the kernel may directly emulate the real-mode x86 INT +.Ar n +instruction handling. +If the +.Ar n Ns Li th +bit is set, then the process is +delivered a signal when an INT instruction is executed. +.Pp +Since MS-DOS puts many DOS functions onto interrupt 21, it is handled +specially: the +.Ar k Ns Li th +bit in the +.Ar vmcp->int21_byuser +array is checked when INT +.Ar 21 +is requested and the +.Ar ah +register is +.Ar k . +.Pp +.Sy Note: +Code using the +.Fn amd64_vm86 +function must be compiled using +.Cm -lamd64 . +.Sh RETURN VALUES +This routine does not normally return: 32-bit mode will be restored by +the delivery of a signal to the process. +In case of an error in setting +the VM86 mode, a value of \-1 is returned and the global variable +.Va errno +is set to indicate the error. +.Sh ERRORS +.Fn amd64_vm86 +will fail if: +.Bl -tag -width [EINVAL] +.It Bq Er EFAULT +The state at +.Ar vmcp +was not readable to the user process. +.El +.Sh REFERENCES +.Rs +.%A Intel +.%T AMD64 Microprocessor Programmer's Reference Manual +.Re diff --git a/lib/libarch/amd64/amd64_vm86.c b/lib/libarch/amd64/amd64_vm86.c new file mode 100644 index 00000000000..a307c76682a --- /dev/null +++ b/lib/libarch/amd64/amd64_vm86.c @@ -0,0 +1,55 @@ +/* $OpenBSD: amd64_vm86.c,v 1.1 2004/02/27 23:44:56 deraadt Exp $ */ +/* $NetBSD: i386_vm86.c,v 1.1 1996/02/21 00:21:56 jtk Exp $ */ + +/*- + * Copyright (c) 1996 The NetBSD Foundation, Inc. + * All rights reserved. + * + * This code is derived from software contributed to The NetBSD Foundation + * by John Kohl. + * + * 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. + */ + +#include <sys/cdefs.h> +#include <sys/types.h> +#include <machine/signal.h> +#include <machine/segments.h> +#include <machine/sysarch.h> +#include <machine/vm86.h> + +int +i386_vm86(vmcp) + register struct vm86_struct *vmcp; +{ + + /* LINTED pointer cast may be troublesome */ + return sysarch(I386_VM86, (char *)vmcp); +} + |