1 files changed, 64 insertions, 0 deletions
diff --git a/kexec/crashdump.h b/kexec/crashdump.h
new file mode 100644
index 0000000..18bd691
--- /dev/null
+++ b/kexec/crashdump.h
@@ -0,0 +1,64 @@
+#ifndef CRASHDUMP_H
+#define CRASHDUMP_H
+
+extern int get_crash_notes_per_cpu(int cpu, uint64_t *addr, uint64_t *len);
+extern int get_kernel_vmcoreinfo(uint64_t *addr, uint64_t *len);
+extern int get_xen_vmcoreinfo(uint64_t *addr, uint64_t *len);
+
+/* Need to find a better way to determine per cpu notes section size. */
+#define MAX_NOTE_BYTES		1024
+/* Expecting ELF headers to fit in 64K. Increase it if you need more. */
+#define KCORE_ELF_HEADERS_SIZE  65536
+/* The address of the ELF header is passed to the secondary kernel
+ * using the kernel command line option memmap=nnn.
+ * The smallest unit the kernel accepts is in kilobytes,
+ * so we need to make sure the ELF header is aligned to 1024.
+ */
+#define ELF_CORE_HEADER_ALIGN   1024
+
+/* structure passed to crash_create_elf32/64_headers() */
+
+struct crash_elf_info {
+	unsigned long class;
+	unsigned long data;
+	unsigned long machine;
+
+	unsigned long long page_offset;
+	unsigned long long kern_vaddr_start;
+	unsigned long long kern_paddr_start;
+	unsigned long kern_size;
+	unsigned long lowmem_limit;
+
+	int (*get_note_info)(int cpu, uint64_t *addr, uint64_t *len);
+};
+
+typedef int(*crash_create_elf_headers_func)(struct kexec_info *info,
+					    struct crash_elf_info *elf_info,
+					    struct memory_range *range,
+					    int ranges,
+					    void **buf, unsigned long *size,
+					    unsigned long align);
+
+int crash_create_elf32_headers(struct kexec_info *info,
+			       struct crash_elf_info *elf_info,
+			       struct memory_range *range, int ranges,
+			       void **buf, unsigned long *size,
+			       unsigned long align);
+
+int crash_create_elf64_headers(struct kexec_info *info,
+			       struct crash_elf_info *elf_info,
+			       struct memory_range *range, int ranges,
+			       void **buf, unsigned long *size,
+			       unsigned long align);
+
+unsigned long crash_architecture(struct crash_elf_info *elf_info);
+
+unsigned long phys_to_virt(struct crash_elf_info *elf_info,
+			   unsigned long long paddr);
+
+unsigned long xen_architecture(struct crash_elf_info *elf_info);
+int xen_get_nr_phys_cpus(void);
+int xen_get_note(int cpu, uint64_t *addr, uint64_t *len);
+int xen_get_crashkernel_region(uint64_t *start, uint64_t *end);
+
+#endif /* CRASHDUMP_H */