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authorAKASHI Takahiro <takahiro.akashi@linaro.org>2018-04-14 01:36:06 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2018-04-14 03:10:27 +0300
commitbabac4a84a88842bec477a5bdada1460f3bc374c (patch)
tree88e84c21942b051c2dfe941cadb8d8cdb4aa7ec0 /include/linux/kexec.h
parenteb7dae947ef5c50e0121f673fcb43ca3583e5849 (diff)
downloadlinux-babac4a84a88842bec477a5bdada1460f3bc374c.tar.xz
kexec_file, x86: move re-factored code to generic side
In the previous patches, commonly-used routines, exclude_mem_range() and prepare_elf64_headers(), were carved out. Now place them in kexec common code. A prefix "crash_" is given to each of their names to avoid possible name collisions. Link: http://lkml.kernel.org/r/20180306102303.9063-8-takahiro.akashi@linaro.org Signed-off-by: AKASHI Takahiro <takahiro.akashi@linaro.org> Acked-by: Dave Young <dyoung@redhat.com> Tested-by: Dave Young <dyoung@redhat.com> Cc: Vivek Goyal <vgoyal@redhat.com> Cc: Baoquan He <bhe@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'include/linux/kexec.h')
-rw-r--r--include/linux/kexec.h19
1 files changed, 19 insertions, 0 deletions
diff --git a/include/linux/kexec.h b/include/linux/kexec.h
index 102c725421a1..68865fd51aad 100644
--- a/include/linux/kexec.h
+++ b/include/linux/kexec.h
@@ -168,6 +168,25 @@ int __weak arch_kexec_walk_mem(struct kexec_buf *kbuf,
int (*func)(struct resource *, void *));
extern int kexec_add_buffer(struct kexec_buf *kbuf);
int kexec_locate_mem_hole(struct kexec_buf *kbuf);
+
+/* Alignment required for elf header segment */
+#define ELF_CORE_HEADER_ALIGN 4096
+
+struct crash_mem_range {
+ u64 start, end;
+};
+
+struct crash_mem {
+ unsigned int max_nr_ranges;
+ unsigned int nr_ranges;
+ struct crash_mem_range ranges[0];
+};
+
+extern int crash_exclude_mem_range(struct crash_mem *mem,
+ unsigned long long mstart,
+ unsigned long long mend);
+extern int crash_prepare_elf64_headers(struct crash_mem *mem, int kernel_map,
+ void **addr, unsigned long *sz);
#endif /* CONFIG_KEXEC_FILE */
struct kimage {