/* $OpenBSD: kvm_vax.c,v 1.3 1997/02/26 16:46:35 niklas Exp $ */ /* $NetBSD: kvm_vax.c,v 1.3 1996/03/18 22:34:06 thorpej Exp $ */ /*- * Copyright (c) 1992, 1993 * The Regents of the University of California. All rights reserved. * * This code is derived from software developed by the Computer Systems * Engineering group at Lawrence Berkeley Laboratory under DARPA contract * BG 91-66 and contributed to Berkeley. * * 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. */ /* * VAX machine dependent routines for kvm. Hopefully, the forthcoming * vm code will one day obsolete this module. Furthermore, I hope it * gets here soon, because this basically is an error stub! (sorry) * This code may not work anyway. */ #include #include #include #include #include #include #include #include #include #include #include #include "kvm_private.h" struct vmstate { u_long end; }; void _kvm_freevtop(kd) kvm_t *kd; { if (kd->vmst != 0) free(kd->vmst); } int _kvm_initvtop(kd) kvm_t *kd; { register int i; register int off; register struct vmstate *vm; struct stat st; struct nlist nlist[2]; vm = (struct vmstate *)_kvm_malloc(kd, sizeof(*vm)); if (vm == 0) return (-1); kd->vmst = vm; if (fstat(kd->pmfd, &st) < 0) return (-1); /* Get end of kernel address */ nlist[0].n_name = "_end"; nlist[1].n_name = 0; if (kvm_nlist(kd, nlist) != 0) { _kvm_err(kd, kd->program, "pmap_stod: no such symbol"); return (-1); } vm->end = (u_long)nlist[0].n_value; return (0); } #define VA_OFF(va) (va & (NBPG - 1)) /* * Translate a kernel virtual address to a physical address using the * mapping information in kd->vm. Returns the result in pa, and returns * the number of bytes that are contiguously available from this * physical address. This routine is used only for crashdumps. */ int _kvm_kvatop(kd, va, pa) kvm_t *kd; u_long va; u_long *pa; { register u_long end; if (va < KERNBASE) { _kvm_err(kd, 0, "invalid address (%lx<%lx)", va, KERNBASE); return (0); } end = kd->vmst->end; if (va >= end) { _kvm_err(kd, 0, "invalid address (%lx>=%lx)", va, end); return (0); } *pa = (va - KERNBASE); return (end - va); }