1 /*
2 * xen/arch/arm/arm64/traps.c
3 *
4 * ARM AArch64 Specific Trap handlers
5 *
6 * Copyright (c) 2012 Citrix Systems.
7 *
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or
11 * (at your option) any later version.
12 *
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
17 */
18
19 #include <xen/lib.h>
20
21 #include <asm/hsr.h>
22 #include <asm/system.h>
23 #include <asm/processor.h>
24
25 #include <public/xen.h>
26
27 static const char *handler[]= {
28 "Synchronous Abort",
29 "IRQ",
30 "FIQ",
31 "Error"
32 };
33
do_bad_mode(struct cpu_user_regs * regs,int reason)34 void do_bad_mode(struct cpu_user_regs *regs, int reason)
35 {
36 union hsr hsr = { .bits = regs->hsr };
37
38 printk("Bad mode in %s handler detected\n", handler[reason]);
39 printk("ESR=0x%08"PRIx32": EC=%"PRIx32", IL=%"PRIx32", ISS=%"PRIx32"\n",
40 hsr.bits, hsr.ec, hsr.len, hsr.iss);
41
42 local_irq_disable();
43 show_execution_state(regs);
44 panic("bad mode\n");
45 }
46
47 /*
48 * Local variables:
49 * mode: C
50 * c-file-style: "BSD"
51 * c-basic-offset: 4
52 * indent-tabs-mode: nil
53 * End:
54 */
55