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*/ 43 static mdb_io_t * 44 libkvm_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 55 mdb_kb_ops_t * 56 libkvm_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 (*)())mdb_tgt_notsup, 69 .kb_vtop = (uint64_t (*)())kvm_physaddr, 70 }; 71 return (&ops); 72 } 73