diff options
Diffstat (limited to 'include/linux/kexec.h')
| -rw-r--r-- | include/linux/kexec.h | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/include/linux/kexec.h b/include/linux/kexec.h index 8e80901e466f..84f09e9eca26 100644 --- a/include/linux/kexec.h +++ b/include/linux/kexec.h @@ -10,6 +10,7 @@ #include <linux/ioport.h> #include <linux/elfcore.h> #include <linux/elf.h> +#include <linux/module.h> #include <asm/kexec.h> /* Verify architecture specific macros are defined */ @@ -95,6 +96,27 @@ struct compat_kexec_segment { }; #endif +struct kexec_sha_region { + unsigned long start; + unsigned long len; +}; + +struct purgatory_info { + /* Pointer to elf header of read only purgatory */ + Elf_Ehdr *ehdr; + + /* Pointer to purgatory sechdrs which are modifiable */ + Elf_Shdr *sechdrs; + /* + * Temporary buffer location where purgatory is loaded and relocated + * This memory can be freed post image load + */ + void *purgatory_buf; + + /* Address where purgatory is finally loaded and is executed from */ + unsigned long purgatory_load_addr; +}; + struct kimage { kimage_entry_t head; kimage_entry_t *entry; @@ -143,6 +165,9 @@ struct kimage { /* Image loader handling the kernel can store a pointer here */ void *image_loader_data; + + /* Information for loading purgatory */ + struct purgatory_info purgatory_info; }; /* @@ -189,6 +214,14 @@ extern int kexec_add_buffer(struct kimage *image, char *buffer, unsigned long *load_addr); extern struct page *kimage_alloc_control_pages(struct kimage *image, unsigned int order); +extern int kexec_load_purgatory(struct kimage *image, unsigned long min, + unsigned long max, int top_down, + unsigned long *load_addr); +extern int kexec_purgatory_get_set_symbol(struct kimage *image, + const char *name, void *buf, + unsigned int size, bool get_value); +extern void *kexec_purgatory_get_symbol_addr(struct kimage *image, + const char *name); extern void crash_kexec(struct pt_regs *); int kexec_should_crash(struct task_struct *); void crash_save_cpu(struct pt_regs *regs, int cpu); |