diff --git a/lib/libkvm/kvm_ns32k.c b/lib/libkvm/kvm_ns32k.c new file mode 100644 index 000000000000..52c811121d59 --- /dev/null +++ b/lib/libkvm/kvm_ns32k.c @@ -0,0 +1,193 @@ +/*- + * Copyright (c) 1989, 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. + */ + +#if defined(LIBC_SCCS) && !defined(lint) +/* from: static char sccsid[] = "@(#)kvm_hp300.c 8.1 (Berkeley) 6/4/93"; */ +static char *rcsid = "$Id: kvm_ns32k.c,v 1.1 1994/05/20 23:31:06 phil Exp $"; +#endif /* LIBC_SCCS and not lint */ + +/* + * pc532 machine dependent routines for kvm. Hopefully, the forthcoming + * vm code will one day obsolete this module. (copy from kvm_i386.c) + */ + +#include +#include +#include +#include +#include +#include +#include + +#include +#include + +#include +#include + +#include "kvm_private.h" + +#include +#define PDSHIFT 22 + +#ifndef btop +#define btop(x) (((unsigned)(x)) >> PGSHIFT) /* XXX */ +#define ptob(x) ((caddr_t)((x) << PGSHIFT)) /* XXX */ +#endif + +struct vmstate { + struct pde **IdlePTD; + struct pde *PTD; +}; + +#define KREAD(kd, addr, p)\ + (kvm_read(kd, addr, (char *)(p), sizeof(*(p))) != sizeof(*(p))) + +void +_kvm_freevtop(kd) + kvm_t *kd; +{ + if (kd->vmst->PTD != 0) + free(kd->vmst->PTD); + + if (kd->vmst != 0) + free(kd->vmst); +} + +int +_kvm_initvtop(kd) + kvm_t *kd; +{ + struct vmstate *vm; + struct nlist nlist[2]; + + vm = (struct vmstate *)_kvm_malloc(kd, sizeof(*vm)); + if (vm == 0) + return (-1); + kd->vmst = vm; + + nlist[0].n_name = "_IdlePTD"; + nlist[1].n_name = 0; + + if (kvm_nlist(kd, nlist) != 0) { + _kvm_err(kd, kd->program, "bad namelist"); + return (-1); + } + vm->IdlePTD = 0; + vm->PTD = 0; + if (KREAD(kd, (u_long)nlist[0].n_value, &vm->IdlePTD)) { + _kvm_err(kd, kd->program, "cannot read IdlePTD"); + return (-1); + } + vm->PTD = (struct pde *)_kvm_malloc(kd, NBPG); + if ((kvm_read(kd, (u_long)vm->IdlePTD, &vm->PTD, NBPG)) != NBPG) { + _kvm_err(kd, kd->program, "cannot read PTD"); + return (-1); + } + return (0); +} + +/* + * Translate a kernel virtual address to a physical address. + */ +int +_kvm_kvatop(kd, va, pa) + kvm_t *kd; + u_long va; + u_long *pa; +{ + struct vmstate *vm; + u_long offset; + + if (ISALIVE(kd)) { + _kvm_err(kd, 0, "vatop called in live kernel!"); + return(0); + } + vm = kd->vmst; + offset = va & PGOFSET; + +invalid: + _kvm_err(kd, 0, "invalid address (%x)", va); + return (0); +} + +/* + * Translate a user virtual address to a physical address. + */ +int +_kvm_uvatop(kd, p, va, pa) + kvm_t *kd; + const struct proc *p; + u_long va; + u_long *pa; +{ + struct vmspace vms; + struct pde pde, *pdeloc; + struct pte pte, *pteloc; + u_long kva, offset; + + if (va >= KERNBASE) + goto invalid; + + /* XXX - should be passed a `kinfo_proc *' here */ + if (kvm_read(kd, (u_long)p->p_vmspace, (char *)&vms, sizeof(vms)) != + sizeof(vms)) + goto invalid; + + pdeloc = (struct pde *)vms.vm_pmap.pm_pdir + (va >> PDSHIFT); + if (kvm_read(kd, (u_long)pdeloc, (char *)&pde, sizeof(pde)) != + sizeof(pde)) + goto invalid; + if (pde.pd_v == 0) + goto invalid; + + pteloc = (struct pte *)ptob(pde.pd_pfnum) + btop(va & PT_MASK); + if (lseek(kd->pmfd, (off_t)(u_long)pteloc, 0) != (off_t)(u_long)pteloc) + goto invalid; + if (read(kd->pmfd, (char *)&pte, sizeof(pte)) != sizeof(pte)) + goto invalid; + if (pte.pg_v == 0) + goto invalid; + + offset = va & PGOFSET; + *pa = (u_long)ptob(pte.pg_pfnum) + offset; + return (NBPG - offset); + +invalid: + _kvm_err(kd, 0, "invalid address (%x)", va); + return (0); +}