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      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 #ifndef	_MDB_KB_H
     27 #define	_MDB_KB_H
     28 
     29 #pragma ident	"%Z%%M%	%I%	%E% SMI"
     30 
     31 /*
     32  * A KVM backend is used by the KVM target to interrogate the address space of
     33  * the subject binary.  This is almost always via direct calls into libkvm,
     34  * except for hypervisor core dumps, which implement its own backend via the
     35  * mdb_kb support module.
     36  */
     37 
     38 #include <sys/types.h>
     39 #include <mdb/mdb_io.h>
     40 
     41 #ifdef	__cplusplus
     42 extern "C" {
     43 #endif
     44 
     45 #ifdef _MDB
     46 
     47 struct as;
     48 struct privmregs;
     49 
     50 typedef struct mdb_kb_ops {
     51 	void *(*kb_open)(const char *, const char *, const char *, int,
     52 	    const char *);
     53 
     54 	int (*kb_close)(void *);
     55 
     56 	mdb_io_t *(*kb_sym_io)(void *, const char *);
     57 
     58 	ssize_t (*kb_kread)(void *, uintptr_t, void *, size_t);
     59 	ssize_t (*kb_kwrite)(void *, uintptr_t, const void *, size_t);
     60 	ssize_t (*kb_aread)(void *, uintptr_t, void *, size_t, struct as *);
     61 	ssize_t (*kb_awrite)(void *, uintptr_t, const void *,
     62 	    size_t, struct as *);
     63 	ssize_t (*kb_pread)(void *, uint64_t, void *, size_t);
     64 	ssize_t (*kb_pwrite)(void *, uint64_t, const void *, size_t);
     65 
     66 	uint64_t (*kb_vtop)(void *, struct as *, uintptr_t);
     67 
     68 	int (*kb_getmregs)(void *, uint_t, struct privmregs *);
     69 } mdb_kb_ops_t;
     70 
     71 extern mdb_kb_ops_t *libkvm_kb_ops(void);
     72 
     73 #endif	/* _MDB */
     74 
     75 #ifdef	__cplusplus
     76 }
     77 #endif
     78 
     79 #endif	/* _MDB_KB_H */
     80