mirror of
https://git.FreeBSD.org/src.git
synced 2024-12-24 11:29:10 +00:00
136 lines
3.9 KiB
C
136 lines
3.9 KiB
C
/*-
|
|
* 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)
|
|
static char sccsid[] = "@(#)kvm_hp300.c 8.1 (Berkeley) 6/4/93";
|
|
#endif /* LIBC_SCCS and not lint */
|
|
|
|
/*
|
|
* i386 machine dependent routines for kvm. Hopefully, the forthcoming
|
|
* vm code will one day obsolete this module.
|
|
*/
|
|
|
|
#include <sys/param.h>
|
|
#include <sys/user.h>
|
|
#include <sys/proc.h>
|
|
#include <sys/stat.h>
|
|
#include <unistd.h>
|
|
#include <nlist.h>
|
|
#include <kvm.h>
|
|
|
|
#include <vm/vm.h>
|
|
#include <vm/vm_param.h>
|
|
|
|
#include <limits.h>
|
|
#include <db.h>
|
|
|
|
#include "kvm_private.h"
|
|
|
|
#ifndef btop
|
|
#define btop(x) (i386_btop(x))
|
|
#define ptob(x) (i386_ptob(x))
|
|
#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(kvm_t *kd) {
|
|
if (kd->vmst->PTD) {
|
|
free(kd->vmst->PTD);
|
|
}
|
|
if (kd->vmst != 0) {
|
|
free(kd->vmst);
|
|
}
|
|
}
|
|
|
|
int
|
|
_kvm_initvtop(kvm_t *kd) {
|
|
struct vmstate *vm;
|
|
struct nlist nlist[2];
|
|
|
|
vm = (struct vmstate *)_kvm_malloc(kd, sizeof(*vm));
|
|
if (vm == 0) {
|
|
_kvm_err(kd, kd->program, "cannot allocate vm");
|
|
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->PTD = 0;
|
|
vm->IdlePTD = 0;
|
|
if (KREAD(kd, (u_long)nlist[0].n_value, &vm->IdlePTD)) {
|
|
_kvm_err(kd, kd->program, "cannot read IdlePTD");
|
|
return (-1);
|
|
}
|
|
if ((vm->PTD = _kvm_malloc(kd, NBPG /*sizeof(struct pde)*/)) != 0) {
|
|
_kvm_err(kd, kd->program, "cannot allocate vm->PTD");
|
|
}
|
|
if (KREAD(kd, (u_long)nlist[1].n_value, &vm->PTD)) {
|
|
_kvm_err(kd, kd->program, "cannot read PTD");
|
|
return (-1);
|
|
}
|
|
return (0);
|
|
}
|
|
|
|
static int
|
|
_kvm_vatop(kvm_t *kd, u_long va, u_long *pa) {
|
|
|
|
if (ISALIVE(kd)) {
|
|
_kvm_err(kd, 0, "vatop called in live kernel!");
|
|
return((off_t)0);
|
|
}
|
|
_kvm_err(kd, 0, "invalid address (%x)", va);
|
|
return ((off_t)0);
|
|
}
|
|
|
|
int
|
|
_kvm_kvatop(kvm_t *kd, u_long va, u_long *pa) {
|
|
return (_kvm_vatop(kd, va, pa));
|
|
}
|