1/*
2 * CDDL HEADER START
3 *
4 * The contents of this file are subject to the terms of the
5 * Common Development and Distribution License (the "License").
6 * You may not use this file except in compliance with the License.
7 *
8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9 * or http://www.opensolaris.org/os/licensing.
10 * See the License for the specific language governing permissions
11 * and limitations under the License.
12 *
13 * When distributing Covered Code, include this CDDL HEADER in each
14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15 * If applicable, add the following below this CDDL HEADER, with the
16 * fields enclosed by brackets "[]" replaced with your own identifying
17 * information: Portions Copyright [yyyy] [name of copyright owner]
18 *
19 * CDDL HEADER END
20 */
21/*
22 * Copyright 2007 Sun Microsystems, Inc.  All rights reserved.
23 * Use is subject to license terms.
24 */
25
26/*
27 * Copyright (c) 2013, Joyent, Inc.  All rights reserved.
28 */
29
30/*
31 * The default KVM backend, which simply calls directly into libkvm for all
32 * operations.
33 */
34
35#include <mdb/mdb_kb.h>
36#include <mdb/mdb_target_impl.h>
37
38#include <fcntl.h>
39#include <dlfcn.h>
40#include <kvm.h>
41
42/*ARGSUSED*/
43static mdb_io_t *
44libkvm_sym_io(void *kvm, const char *ignored)
45{
46	mdb_io_t *io;
47	const char *symfile = kvm_namelist(kvm);
48
49	if ((io = mdb_fdio_create_path(NULL, symfile, O_RDONLY, 0)) == NULL)
50		mdb_warn("failed to open %s", symfile);
51
52	return (io);
53}
54
55mdb_kb_ops_t *
56libkvm_kb_ops(void)
57{
58	static mdb_kb_ops_t ops = {
59		.kb_open = (void *(*)())kvm_open,
60		.kb_close = (int (*)())kvm_close,
61		.kb_sym_io = libkvm_sym_io,
62		.kb_kread = (ssize_t (*)())kvm_kread,
63		.kb_kwrite = (ssize_t (*)())kvm_kwrite,
64		.kb_aread = (ssize_t (*)())kvm_aread,
65		.kb_awrite = (ssize_t (*)())kvm_awrite,
66		.kb_pread = (ssize_t (*)())kvm_pread,
67		.kb_pwrite = (ssize_t (*)())kvm_pwrite,
68		.kb_getmregs = (int (*)())(uintptr_t)mdb_tgt_notsup,
69		.kb_vtop = (uint64_t (*)())kvm_physaddr,
70	};
71	return (&ops);
72}
73