Merge tag 'wq-for-6.6' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq
[linux-block.git] / include / linux / kmsan_types.h
1 /* SPDX-License-Identifier: GPL-2.0 */
2 /*
3  * A minimal header declaring types added by KMSAN to existing kernel structs.
4  *
5  * Copyright (C) 2017-2022 Google LLC
6  * Author: Alexander Potapenko <glider@google.com>
7  *
8  */
9 #ifndef _LINUX_KMSAN_TYPES_H
10 #define _LINUX_KMSAN_TYPES_H
11
12 /* These constants are defined in the MSan LLVM instrumentation pass. */
13 #define KMSAN_RETVAL_SIZE 800
14 #define KMSAN_PARAM_SIZE 800
15
16 struct kmsan_context_state {
17         char param_tls[KMSAN_PARAM_SIZE];
18         char retval_tls[KMSAN_RETVAL_SIZE];
19         char va_arg_tls[KMSAN_PARAM_SIZE];
20         char va_arg_origin_tls[KMSAN_PARAM_SIZE];
21         u64 va_arg_overflow_size_tls;
22         char param_origin_tls[KMSAN_PARAM_SIZE];
23         u32 retval_origin_tls;
24 };
25
26 #undef KMSAN_PARAM_SIZE
27 #undef KMSAN_RETVAL_SIZE
28
29 struct kmsan_ctx {
30         struct kmsan_context_state cstate;
31         int kmsan_in_runtime;
32         bool allow_reporting;
33 };
34
35 #endif /* _LINUX_KMSAN_TYPES_H */