Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm
[sfrench/cifs-2.6.git] / arch / parisc / include / asm / kprobes.h
1 /* SPDX-License-Identifier: GPL-2.0 */
2 /*
3  * arch/parisc/include/asm/kprobes.h
4  *
5  * PA-RISC kprobes implementation
6  *
7  * Copyright (c) 2019 Sven Schnelle <svens@stackframe.org>
8  */
9
10 #ifndef _PARISC_KPROBES_H
11 #define _PARISC_KPROBES_H
12
13 #ifdef CONFIG_KPROBES
14
15 #include <asm-generic/kprobes.h>
16 #include <linux/types.h>
17 #include <linux/ptrace.h>
18 #include <linux/notifier.h>
19
20 #define PARISC_KPROBES_BREAK_INSN       0x3ff801f
21 #define  __ARCH_WANT_KPROBES_INSN_SLOT
22 #define MAX_INSN_SIZE 1
23
24 typedef u32 kprobe_opcode_t;
25 struct kprobe;
26
27 void arch_remove_kprobe(struct kprobe *p);
28
29 #define flush_insn_slot(p) \
30         flush_icache_range((unsigned long)&(p)->ainsn.insn[0], \
31                            (unsigned long)&(p)->ainsn.insn[0] + \
32                            sizeof(kprobe_opcode_t))
33
34 #define kretprobe_blacklist_size    0
35
36 struct arch_specific_insn {
37         kprobe_opcode_t *insn;
38 };
39
40 struct prev_kprobe {
41         struct kprobe *kp;
42         unsigned long status;
43 };
44
45 struct kprobe_ctlblk {
46         unsigned int kprobe_status;
47         struct prev_kprobe prev_kprobe;
48         unsigned long iaoq[2];
49 };
50
51 int __kprobes parisc_kprobe_break_handler(struct pt_regs *regs);
52 int __kprobes parisc_kprobe_ss_handler(struct pt_regs *regs);
53 static inline int kprobe_fault_handler(struct pt_regs *regs, int trapnr)
54 {
55         return 0;
56 }
57
58 #endif /* CONFIG_KPROBES */
59 #endif /* _PARISC_KPROBES_H */