2 * Copyright (c) 2014 The FreeBSD Foundation
4 * This software was developed by Semihalf under
5 * the sponsorship of the FreeBSD Foundation.
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31 #ifndef _MACHINE_DEBUG_MONITOR_H_
32 #define _MACHINE_DEBUG_MONITOR_H_
34 #define DBG_BRP_MAX 16
35 #define DBG_WRP_MAX 16
37 struct debug_monitor_state {
38 uint32_t dbg_enable_count;
40 #define DBGMON_ENABLED (1 << 0)
41 #define DBGMON_KERNEL (1 << 1)
42 uint64_t dbg_bcr[DBG_BRP_MAX];
43 uint64_t dbg_bvr[DBG_BRP_MAX];
44 uint64_t dbg_wcr[DBG_WRP_MAX];
45 uint64_t dbg_wvr[DBG_WRP_MAX];
54 HW_BREAKPOINT_RW = HW_BREAKPOINT_R | HW_BREAKPOINT_W,
57 void dbg_monitor_init(void);
58 void dbg_register_sync(struct debug_monitor_state *);
59 int dbg_setup_watchpoint(struct debug_monitor_state *, vm_offset_t, vm_size_t,
61 int dbg_remove_watchpoint(struct debug_monitor_state *, vm_offset_t, vm_size_t);
64 void dbg_show_watchpoint(void);
69 #endif /* _MACHINE_DEBUG_MONITOR_H_ */