Commit | Line | Data |
---|---|---|
b2441318 | 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
dc009d92 EB |
2 | #ifndef LINUX_KEXEC_H |
3 | #define LINUX_KEXEC_H | |
4 | ||
cf2df639 GL |
5 | #define IND_DESTINATION_BIT 0 |
6 | #define IND_INDIRECTION_BIT 1 | |
7 | #define IND_DONE_BIT 2 | |
8 | #define IND_SOURCE_BIT 3 | |
9 | ||
10 | #define IND_DESTINATION (1 << IND_DESTINATION_BIT) | |
11 | #define IND_INDIRECTION (1 << IND_INDIRECTION_BIT) | |
12 | #define IND_DONE (1 << IND_DONE_BIT) | |
13 | #define IND_SOURCE (1 << IND_SOURCE_BIT) | |
b28c2ee8 | 14 | #define IND_FLAGS (IND_DESTINATION | IND_INDIRECTION | IND_DONE | IND_SOURCE) |
cf2df639 GL |
15 | |
16 | #if !defined(__ASSEMBLY__) | |
17 | ||
692f66f2 | 18 | #include <linux/crash_core.h> |
43546d86 | 19 | #include <asm/io.h> |
cade589f | 20 | #include <linux/range.h> |
43546d86 | 21 | |
607ca46e | 22 | #include <uapi/linux/kexec.h> |
c903dae8 | 23 | #include <linux/verification.h> |
29a5c67e | 24 | |
f05fa109 JZ |
25 | /* Location of a reserved region to hold the crash kernel. |
26 | */ | |
27 | extern struct resource crashk_res; | |
28 | extern struct resource crashk_low_res; | |
29 | extern note_buf_t __percpu *crash_notes; | |
30 | ||
2965faa5 | 31 | #ifdef CONFIG_KEXEC_CORE |
dc009d92 | 32 | #include <linux/list.h> |
dc009d92 | 33 | #include <linux/compat.h> |
9c15e852 | 34 | #include <linux/ioport.h> |
12db5562 | 35 | #include <linux/module.h> |
dc009d92 EB |
36 | #include <asm/kexec.h> |
37 | ||
38 | /* Verify architecture specific macros are defined */ | |
39 | ||
40 | #ifndef KEXEC_SOURCE_MEMORY_LIMIT | |
41 | #error KEXEC_SOURCE_MEMORY_LIMIT not defined | |
42 | #endif | |
43 | ||
44 | #ifndef KEXEC_DESTINATION_MEMORY_LIMIT | |
45 | #error KEXEC_DESTINATION_MEMORY_LIMIT not defined | |
46 | #endif | |
47 | ||
48 | #ifndef KEXEC_CONTROL_MEMORY_LIMIT | |
49 | #error KEXEC_CONTROL_MEMORY_LIMIT not defined | |
50 | #endif | |
51 | ||
7e01b5ac | 52 | #ifndef KEXEC_CONTROL_MEMORY_GFP |
dc5cccac | 53 | #define KEXEC_CONTROL_MEMORY_GFP (GFP_KERNEL | __GFP_NORETRY) |
7e01b5ac MS |
54 | #endif |
55 | ||
163f6876 HY |
56 | #ifndef KEXEC_CONTROL_PAGE_SIZE |
57 | #error KEXEC_CONTROL_PAGE_SIZE not defined | |
dc009d92 EB |
58 | #endif |
59 | ||
60 | #ifndef KEXEC_ARCH | |
61 | #error KEXEC_ARCH not defined | |
62 | #endif | |
63 | ||
3d214fae MH |
64 | #ifndef KEXEC_CRASH_CONTROL_MEMORY_LIMIT |
65 | #define KEXEC_CRASH_CONTROL_MEMORY_LIMIT KEXEC_CONTROL_MEMORY_LIMIT | |
66 | #endif | |
67 | ||
558df720 MH |
68 | #ifndef KEXEC_CRASH_MEM_ALIGN |
69 | #define KEXEC_CRASH_MEM_ALIGN PAGE_SIZE | |
70 | #endif | |
71 | ||
692f66f2 HB |
72 | #define KEXEC_CORE_NOTE_NAME CRASH_CORE_NOTE_NAME |
73 | ||
dc009d92 EB |
74 | /* |
75 | * This structure is used to hold the arguments that are used when loading | |
76 | * kernel binaries. | |
77 | */ | |
78 | ||
79 | typedef unsigned long kimage_entry_t; | |
dc009d92 | 80 | |
dc009d92 | 81 | struct kexec_segment { |
815d5704 VG |
82 | /* |
83 | * This pointer can point to user memory if kexec_load() system | |
84 | * call is used or will point to kernel memory if | |
85 | * kexec_file_load() system call is used. | |
86 | * | |
87 | * Use ->buf when expecting to deal with user memory and use ->kbuf | |
88 | * when expecting to deal with kernel memory. | |
89 | */ | |
90 | union { | |
91 | void __user *buf; | |
92 | void *kbuf; | |
93 | }; | |
dc009d92 | 94 | size_t bufsz; |
29a5c67e | 95 | unsigned long mem; |
dc009d92 EB |
96 | size_t memsz; |
97 | }; | |
98 | ||
99 | #ifdef CONFIG_COMPAT | |
100 | struct compat_kexec_segment { | |
101 | compat_uptr_t buf; | |
102 | compat_size_t bufsz; | |
103 | compat_ulong_t mem; /* User space sees this as a (void *) ... */ | |
104 | compat_size_t memsz; | |
105 | }; | |
106 | #endif | |
107 | ||
978e30c9 | 108 | #ifdef CONFIG_KEXEC_FILE |
12db5562 | 109 | struct purgatory_info { |
65c225d3 PR |
110 | /* |
111 | * Pointer to elf header at the beginning of kexec_purgatory. | |
112 | * Note: kexec_purgatory is read only | |
113 | */ | |
114 | const Elf_Ehdr *ehdr; | |
115 | /* | |
116 | * Temporary, modifiable buffer for sechdrs used for relocation. | |
117 | * This memory can be freed post image load. | |
118 | */ | |
12db5562 VG |
119 | Elf_Shdr *sechdrs; |
120 | /* | |
65c225d3 PR |
121 | * Temporary, modifiable buffer for stripped purgatory used for |
122 | * relocation. This memory can be freed post image load. | |
12db5562 VG |
123 | */ |
124 | void *purgatory_buf; | |
12db5562 VG |
125 | }; |
126 | ||
ee6ebeda PR |
127 | struct kimage; |
128 | ||
978e30c9 XP |
129 | typedef int (kexec_probe_t)(const char *kernel_buf, unsigned long kernel_size); |
130 | typedef void *(kexec_load_t)(struct kimage *image, char *kernel_buf, | |
131 | unsigned long kernel_len, char *initrd, | |
132 | unsigned long initrd_len, char *cmdline, | |
133 | unsigned long cmdline_len); | |
134 | typedef int (kexec_cleanup_t)(void *loader_data); | |
135 | ||
99d5cadf | 136 | #ifdef CONFIG_KEXEC_SIG |
978e30c9 XP |
137 | typedef int (kexec_verify_sig_t)(const char *kernel_buf, |
138 | unsigned long kernel_len); | |
139 | #endif | |
140 | ||
141 | struct kexec_file_ops { | |
142 | kexec_probe_t *probe; | |
143 | kexec_load_t *load; | |
144 | kexec_cleanup_t *cleanup; | |
99d5cadf | 145 | #ifdef CONFIG_KEXEC_SIG |
978e30c9 XP |
146 | kexec_verify_sig_t *verify_sig; |
147 | #endif | |
148 | }; | |
60fe3910 | 149 | |
9ec4ecef AT |
150 | extern const struct kexec_file_ops * const kexec_file_loaders[]; |
151 | ||
152 | int kexec_image_probe_default(struct kimage *image, void *buf, | |
153 | unsigned long buf_len); | |
92a98a2b | 154 | int kexec_image_post_load_cleanup_default(struct kimage *image); |
9ec4ecef | 155 | |
b6664ba4 AT |
156 | /* |
157 | * If kexec_buf.mem is set to this value, kexec_locate_mem_hole() | |
158 | * will try to allocate free memory. Arch may overwrite it. | |
159 | */ | |
160 | #ifndef KEXEC_BUF_MEM_UNKNOWN | |
161 | #define KEXEC_BUF_MEM_UNKNOWN 0 | |
162 | #endif | |
163 | ||
60fe3910 TJB |
164 | /** |
165 | * struct kexec_buf - parameters for finding a place for a buffer in memory | |
166 | * @image: kexec image in which memory to search. | |
167 | * @buffer: Contents which will be copied to the allocated memory. | |
168 | * @bufsz: Size of @buffer. | |
169 | * @mem: On return will have address of the buffer in memory. | |
170 | * @memsz: Size for the buffer in memory. | |
171 | * @buf_align: Minimum alignment needed. | |
172 | * @buf_min: The buffer can't be placed below this address. | |
173 | * @buf_max: The buffer can't be placed above this address. | |
174 | * @top_down: Allocate from top of memory. | |
175 | */ | |
176 | struct kexec_buf { | |
177 | struct kimage *image; | |
ec2b9bfa | 178 | void *buffer; |
60fe3910 TJB |
179 | unsigned long bufsz; |
180 | unsigned long mem; | |
181 | unsigned long memsz; | |
182 | unsigned long buf_align; | |
183 | unsigned long buf_min; | |
184 | unsigned long buf_max; | |
185 | bool top_down; | |
186 | }; | |
187 | ||
3be3f61d PR |
188 | int kexec_load_purgatory(struct kimage *image, struct kexec_buf *kbuf); |
189 | int kexec_purgatory_get_set_symbol(struct kimage *image, const char *name, | |
190 | void *buf, unsigned int size, | |
191 | bool get_value); | |
192 | void *kexec_purgatory_get_symbol_addr(struct kimage *image, const char *name); | |
65d9a9a6 NR |
193 | |
194 | #ifndef arch_kexec_kernel_image_probe | |
195 | static inline int | |
196 | arch_kexec_kernel_image_probe(struct kimage *image, void *buf, unsigned long buf_len) | |
197 | { | |
198 | return kexec_image_probe_default(image, buf, buf_len); | |
199 | } | |
200 | #endif | |
201 | ||
202 | #ifndef arch_kimage_file_post_load_cleanup | |
203 | static inline int arch_kimage_file_post_load_cleanup(struct kimage *image) | |
204 | { | |
205 | return kexec_image_post_load_cleanup_default(image); | |
206 | } | |
207 | #endif | |
208 | ||
c903dae8 CX |
209 | #ifdef CONFIG_KEXEC_SIG |
210 | #ifdef CONFIG_SIGNED_PE_FILE_VERIFICATION | |
211 | int kexec_kernel_verify_pe_sig(const char *kernel, unsigned long kernel_len); | |
212 | #endif | |
213 | #endif | |
214 | ||
ec2b9bfa | 215 | extern int kexec_add_buffer(struct kexec_buf *kbuf); |
e2e806f9 | 216 | int kexec_locate_mem_hole(struct kexec_buf *kbuf); |
babac4a8 | 217 | |
65d9a9a6 NR |
218 | #ifndef arch_kexec_locate_mem_hole |
219 | /** | |
220 | * arch_kexec_locate_mem_hole - Find free memory to place the segments. | |
221 | * @kbuf: Parameters for the memory search. | |
222 | * | |
223 | * On success, kbuf->mem will have the start address of the memory region found. | |
224 | * | |
225 | * Return: 0 on success, negative errno on error. | |
226 | */ | |
227 | static inline int arch_kexec_locate_mem_hole(struct kexec_buf *kbuf) | |
228 | { | |
229 | return kexec_locate_mem_hole(kbuf); | |
230 | } | |
231 | #endif | |
232 | ||
babac4a8 AT |
233 | /* Alignment required for elf header segment */ |
234 | #define ELF_CORE_HEADER_ALIGN 4096 | |
235 | ||
babac4a8 AT |
236 | struct crash_mem { |
237 | unsigned int max_nr_ranges; | |
238 | unsigned int nr_ranges; | |
cade589f | 239 | struct range ranges[]; |
babac4a8 AT |
240 | }; |
241 | ||
242 | extern int crash_exclude_mem_range(struct crash_mem *mem, | |
243 | unsigned long long mstart, | |
244 | unsigned long long mend); | |
4853f68d | 245 | extern int crash_prepare_elf64_headers(struct crash_mem *mem, int need_kernel_map, |
babac4a8 | 246 | void **addr, unsigned long *sz); |
3e35142e NR |
247 | |
248 | #ifndef arch_kexec_apply_relocations_add | |
249 | /* | |
250 | * arch_kexec_apply_relocations_add - apply relocations of type RELA | |
251 | * @pi: Purgatory to be relocated. | |
252 | * @section: Section relocations applying to. | |
253 | * @relsec: Section containing RELAs. | |
254 | * @symtab: Corresponding symtab. | |
255 | * | |
256 | * Return: 0 on success, negative errno on error. | |
257 | */ | |
258 | static inline int | |
259 | arch_kexec_apply_relocations_add(struct purgatory_info *pi, Elf_Shdr *section, | |
260 | const Elf_Shdr *relsec, const Elf_Shdr *symtab) | |
261 | { | |
262 | pr_err("RELA relocation unsupported.\n"); | |
263 | return -ENOEXEC; | |
264 | } | |
265 | #endif | |
266 | ||
267 | #ifndef arch_kexec_apply_relocations | |
268 | /* | |
269 | * arch_kexec_apply_relocations - apply relocations of type REL | |
270 | * @pi: Purgatory to be relocated. | |
271 | * @section: Section relocations applying to. | |
272 | * @relsec: Section containing RELs. | |
273 | * @symtab: Corresponding symtab. | |
274 | * | |
275 | * Return: 0 on success, negative errno on error. | |
276 | */ | |
277 | static inline int | |
278 | arch_kexec_apply_relocations(struct purgatory_info *pi, Elf_Shdr *section, | |
279 | const Elf_Shdr *relsec, const Elf_Shdr *symtab) | |
280 | { | |
281 | pr_err("REL relocation unsupported.\n"); | |
282 | return -ENOEXEC; | |
283 | } | |
284 | #endif | |
60fe3910 | 285 | #endif /* CONFIG_KEXEC_FILE */ |
978e30c9 | 286 | |
175fca3b SS |
287 | #ifdef CONFIG_KEXEC_ELF |
288 | struct kexec_elf_info { | |
289 | /* | |
290 | * Where the ELF binary contents are kept. | |
291 | * Memory managed by the user of the struct. | |
292 | */ | |
293 | const char *buffer; | |
294 | ||
295 | const struct elfhdr *ehdr; | |
296 | const struct elf_phdr *proghdrs; | |
175fca3b SS |
297 | }; |
298 | ||
299 | int kexec_build_elf_info(const char *buf, size_t len, struct elfhdr *ehdr, | |
300 | struct kexec_elf_info *elf_info); | |
301 | ||
302 | int kexec_elf_load(struct kimage *image, struct elfhdr *ehdr, | |
303 | struct kexec_elf_info *elf_info, | |
304 | struct kexec_buf *kbuf, | |
305 | unsigned long *lowest_load_addr); | |
306 | ||
307 | void kexec_free_elf_info(struct kexec_elf_info *elf_info); | |
308 | int kexec_elf_probe(const char *buf, unsigned long len); | |
309 | #endif | |
dc009d92 EB |
310 | struct kimage { |
311 | kimage_entry_t head; | |
312 | kimage_entry_t *entry; | |
313 | kimage_entry_t *last_entry; | |
314 | ||
dc009d92 EB |
315 | unsigned long start; |
316 | struct page *control_code_page; | |
3ab83521 | 317 | struct page *swap_page; |
1229384f | 318 | void *vmcoreinfo_data_copy; /* locates in the crash memory */ |
dc009d92 EB |
319 | |
320 | unsigned long nr_segments; | |
321 | struct kexec_segment segment[KEXEC_SEGMENT_MAX]; | |
322 | ||
323 | struct list_head control_pages; | |
324 | struct list_head dest_pages; | |
7d3e2bca | 325 | struct list_head unusable_pages; |
dc009d92 EB |
326 | |
327 | /* Address of next control page to allocate for crash kernels. */ | |
328 | unsigned long control_page; | |
329 | ||
330 | /* Flags to indicate special processing */ | |
331 | unsigned int type : 1; | |
332 | #define KEXEC_TYPE_DEFAULT 0 | |
333 | #define KEXEC_TYPE_CRASH 1 | |
3ab83521 | 334 | unsigned int preserve_context : 1; |
cb105258 VG |
335 | /* If set, we are using file mode kexec syscall */ |
336 | unsigned int file_mode:1; | |
92be3d6b HY |
337 | |
338 | #ifdef ARCH_HAS_KIMAGE_ARCH | |
339 | struct kimage_arch arch; | |
340 | #endif | |
cb105258 | 341 | |
978e30c9 | 342 | #ifdef CONFIG_KEXEC_FILE |
cb105258 VG |
343 | /* Additional fields for file based kexec syscall */ |
344 | void *kernel_buf; | |
345 | unsigned long kernel_buf_len; | |
346 | ||
347 | void *initrd_buf; | |
348 | unsigned long initrd_buf_len; | |
349 | ||
350 | char *cmdline_buf; | |
351 | unsigned long cmdline_buf_len; | |
352 | ||
353 | /* File operations provided by image loader */ | |
9ec4ecef | 354 | const struct kexec_file_ops *fops; |
cb105258 VG |
355 | |
356 | /* Image loader handling the kernel can store a pointer here */ | |
357 | void *image_loader_data; | |
12db5562 VG |
358 | |
359 | /* Information for loading purgatory */ | |
360 | struct purgatory_info purgatory_info; | |
978e30c9 | 361 | #endif |
f31e3386 LR |
362 | |
363 | #ifdef CONFIG_IMA_KEXEC | |
364 | /* Virtual address of IMA measurement buffer for kexec syscall */ | |
365 | void *ima_buffer; | |
0c605158 LR |
366 | |
367 | phys_addr_t ima_buffer_addr; | |
368 | size_t ima_buffer_size; | |
f31e3386 | 369 | #endif |
9336a5f6 LR |
370 | |
371 | /* Core ELF header buffer */ | |
372 | void *elf_headers; | |
373 | unsigned long elf_headers_sz; | |
374 | unsigned long elf_load_addr; | |
cb105258 | 375 | }; |
dc009d92 EB |
376 | |
377 | /* kexec interface functions */ | |
3ab83521 | 378 | extern void machine_kexec(struct kimage *image); |
dc009d92 EB |
379 | extern int machine_kexec_prepare(struct kimage *image); |
380 | extern void machine_kexec_cleanup(struct kimage *image); | |
3ab83521 | 381 | extern int kernel_kexec(void); |
72414d3f MS |
382 | extern struct page *kimage_alloc_control_pages(struct kimage *image, |
383 | unsigned int order); | |
0738eceb NR |
384 | |
385 | #ifndef machine_kexec_post_load | |
386 | static inline int machine_kexec_post_load(struct kimage *image) { return 0; } | |
387 | #endif | |
2596b6ae | 388 | |
7bbee5ca | 389 | extern void __crash_kexec(struct pt_regs *); |
6e274d14 AN |
390 | extern void crash_kexec(struct pt_regs *); |
391 | int kexec_should_crash(struct task_struct *); | |
21db79e8 | 392 | int kexec_crash_loaded(void); |
85916f81 | 393 | void crash_save_cpu(struct pt_regs *regs, int cpu); |
1229384f | 394 | extern int kimage_crash_copy_vmcoreinfo(struct kimage *image); |
fd59d231 | 395 | |
dc009d92 | 396 | extern struct kimage *kexec_image; |
c330dda9 | 397 | extern struct kimage *kexec_crash_image; |
7e99f8b6 | 398 | |
a42aaad2 | 399 | bool kexec_load_permitted(int kexec_image_type); |
dc009d92 | 400 | |
a7956113 ZN |
401 | #ifndef kexec_flush_icache_page |
402 | #define kexec_flush_icache_page(page) | |
403 | #endif | |
404 | ||
3ab83521 HY |
405 | /* List of defined/legal kexec flags */ |
406 | #ifndef CONFIG_KEXEC_JUMP | |
407 | #define KEXEC_FLAGS KEXEC_ON_CRASH | |
408 | #else | |
409 | #define KEXEC_FLAGS (KEXEC_ON_CRASH | KEXEC_PRESERVE_CONTEXT) | |
410 | #endif | |
dc009d92 | 411 | |
cb105258 VG |
412 | /* List of defined/legal kexec file flags */ |
413 | #define KEXEC_FILE_FLAGS (KEXEC_FILE_UNLOAD | KEXEC_FILE_ON_CRASH | \ | |
414 | KEXEC_FILE_NO_INITRAMFS) | |
415 | ||
4fc9bbf9 KA |
416 | /* flag to track if kexec reboot is in progress */ |
417 | extern bool kexec_in_progress; | |
418 | ||
06a7f711 | 419 | int crash_shrink_memory(unsigned long new_size); |
7bb5da0d | 420 | ssize_t crash_get_memory_size(void); |
a7956113 | 421 | |
0738eceb NR |
422 | #ifndef arch_kexec_protect_crashkres |
423 | /* | |
424 | * Protection mechanism for crashkernel reserved memory after | |
425 | * the kdump kernel is loaded. | |
426 | * | |
427 | * Provide an empty default implementation here -- architecture | |
428 | * code may override this | |
429 | */ | |
430 | static inline void arch_kexec_protect_crashkres(void) { } | |
431 | #endif | |
432 | ||
433 | #ifndef arch_kexec_unprotect_crashkres | |
434 | static inline void arch_kexec_unprotect_crashkres(void) { } | |
435 | #endif | |
a43cac0d | 436 | |
43546d86 RK |
437 | #ifndef page_to_boot_pfn |
438 | static inline unsigned long page_to_boot_pfn(struct page *page) | |
439 | { | |
440 | return page_to_pfn(page); | |
441 | } | |
442 | #endif | |
443 | ||
444 | #ifndef boot_pfn_to_page | |
445 | static inline struct page *boot_pfn_to_page(unsigned long boot_pfn) | |
446 | { | |
447 | return pfn_to_page(boot_pfn); | |
448 | } | |
449 | #endif | |
450 | ||
451 | #ifndef phys_to_boot_phys | |
452 | static inline unsigned long phys_to_boot_phys(phys_addr_t phys) | |
453 | { | |
454 | return phys; | |
455 | } | |
456 | #endif | |
457 | ||
458 | #ifndef boot_phys_to_phys | |
459 | static inline phys_addr_t boot_phys_to_phys(unsigned long boot_phys) | |
460 | { | |
461 | return boot_phys; | |
462 | } | |
463 | #endif | |
464 | ||
0738eceb NR |
465 | #ifndef crash_free_reserved_phys_range |
466 | static inline void crash_free_reserved_phys_range(unsigned long begin, unsigned long end) | |
467 | { | |
468 | unsigned long addr; | |
469 | ||
470 | for (addr = begin; addr < end; addr += PAGE_SIZE) | |
471 | free_reserved_page(boot_pfn_to_page(addr >> PAGE_SHIFT)); | |
472 | } | |
473 | #endif | |
474 | ||
43546d86 RK |
475 | static inline unsigned long virt_to_boot_phys(void *addr) |
476 | { | |
477 | return phys_to_boot_phys(__pa((unsigned long)addr)); | |
478 | } | |
479 | ||
480 | static inline void *boot_phys_to_virt(unsigned long entry) | |
481 | { | |
482 | return phys_to_virt(boot_phys_to_phys(entry)); | |
483 | } | |
484 | ||
bba4ed01 TL |
485 | #ifndef arch_kexec_post_alloc_pages |
486 | static inline int arch_kexec_post_alloc_pages(void *vaddr, unsigned int pages, gfp_t gfp) { return 0; } | |
487 | #endif | |
488 | ||
489 | #ifndef arch_kexec_pre_free_pages | |
490 | static inline void arch_kexec_pre_free_pages(void *vaddr, unsigned int pages) { } | |
491 | #endif | |
492 | ||
2965faa5 | 493 | #else /* !CONFIG_KEXEC_CORE */ |
6e274d14 AN |
494 | struct pt_regs; |
495 | struct task_struct; | |
7bbee5ca | 496 | static inline void __crash_kexec(struct pt_regs *regs) { } |
6e274d14 AN |
497 | static inline void crash_kexec(struct pt_regs *regs) { } |
498 | static inline int kexec_should_crash(struct task_struct *p) { return 0; } | |
21db79e8 | 499 | static inline int kexec_crash_loaded(void) { return 0; } |
2b94ed24 | 500 | #define kexec_in_progress false |
2965faa5 | 501 | #endif /* CONFIG_KEXEC_CORE */ |
cf2df639 | 502 | |
af16df54 CX |
503 | #ifdef CONFIG_KEXEC_SIG |
504 | void set_kexec_sig_enforced(void); | |
505 | #else | |
506 | static inline void set_kexec_sig_enforced(void) {} | |
507 | #endif | |
508 | ||
cf2df639 GL |
509 | #endif /* !defined(__ASSEBMLY__) */ |
510 | ||
dc009d92 | 511 | #endif /* LINUX_KEXEC_H */ |