From b16b5f32436d10c147722a3f83e9c873d7615b4a Mon Sep 17 00:00:00 2001 From: jake Date: Sun, 18 Nov 2001 21:01:09 +0000 Subject: libkvm for sparc64. Only works for kernel memory so far. --- lib/libkvm/kvm_sparc64.c | 157 +++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 157 insertions(+) create mode 100644 lib/libkvm/kvm_sparc64.c (limited to 'lib/libkvm') diff --git a/lib/libkvm/kvm_sparc64.c b/lib/libkvm/kvm_sparc64.c new file mode 100644 index 0000000..64f699f --- /dev/null +++ b/lib/libkvm/kvm_sparc64.c @@ -0,0 +1,157 @@ +/*- + * 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. + * + * from: FreeBSD: src/lib/libkvm/kvm_i386.c,v 1.15 2001/10/10 17:48:43 + */ + +#include +__FBSDID("$FreeBSD$"); + +#if defined(LIBC_SCCS) && !defined(lint) +#if 0 +static char sccsid[] = "@(#)kvm_hp300.c 8.1 (Berkeley) 6/4/93"; +#endif +#endif /* LIBC_SCCS and not lint */ + +/* + * sparc64 machine dependent routines for kvm. + */ + +#include +#include +#include +#include +#include +#include +#include +#include + +#include +#include + +#include +#include +#include + +#include + +#include "kvm_private.h" + +#ifndef btop +#define btop(x) (sparc64_btop(x)) +#define ptob(x) (sparc64_ptob(x)) +#endif + +struct vmstate { + vm_offset_t vm_tsb; +}; + +void +_kvm_freevtop(kvm_t *kd) +{ + if (kd->vmst != 0) { + free(kd->vmst); + } +} + +int +_kvm_initvtop(kvm_t *kd) +{ + struct nlist nlist[2]; + struct vmstate *vm; + u_long pa; + + vm = (struct vmstate *)_kvm_malloc(kd, sizeof(*vm)); + if (vm == NULL) { + _kvm_err(kd, kd->program, "cannot allocate vm"); + return (-1); + } + kd->vmst = vm; + vm->vm_tsb = 0; + + nlist[0].n_name = "tsb_kernel_phys"; + nlist[1].n_name = 0; + + if (kvm_nlist(kd, nlist) != 0) { + _kvm_err(kd, kd->program, "bad namelist"); + return (-1); + } + if (kvm_read(kd, nlist[0].n_value, &pa, sizeof(pa)) != sizeof(pa)) { + _kvm_err(kd, kd->program, "cannot read tsb_kernel_phys"); + return (-1); + } + vm->vm_tsb = pa; + return (0); +} + +static int +_kvm_vatop(kvm_t *kd, u_long va, u_long *pa) +{ + struct vmstate *vm; + struct stte st; + u_long offset; + u_long st_pa; + u_long vpn; + + vpn = btop(va); + offset = va & PAGE_MASK; + st_pa = kd->vmst->vm_tsb + ((vpn & TSB_KERNEL_MASK) << STTE_SHIFT); + + /* XXX This has to be a physical address read, kvm_read is virtual */ + if (lseek(kd->pmfd, st_pa, 0) == -1) { + _kvm_syserr(kd, kd->program, "_kvm_vatop: lseek"); + goto invalid; + } + if (read(kd->pmfd, &st, sizeof(st)) != sizeof(st)) { + _kvm_syserr(kd, kd->program, "_kvm_vatop: read"); + goto invalid; + } + if (!tte_match(st.st_tte, va)) + goto invalid; + + *pa = TD_PA(st.st_tte.tte_data) + offset; + return (PAGE_SIZE - offset); + +invalid: + _kvm_err(kd, 0, "invalid address (%x)", va); + return (0); +} + +int +_kvm_kvatop(kvm_t *kd, u_long va, u_long *pa) +{ + return (_kvm_vatop(kd, va, pa)); +} -- cgit v1.1