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#ifndef __XEN_KEXEC_H__
#define __XEN_KEXEC_H__
#ifdef CONFIG_KEXEC
#include <public/kexec.h>
#include <asm/percpu.h>
#include <xen/elfcore.h>
typedef struct xen_kexec_reserve {
unsigned long size;
unsigned long start;
} xen_kexec_reserve_t;
extern xen_kexec_reserve_t kexec_crash_area;
extern bool_t kexecing;
void set_kexec_crash_area_size(u64 system_ram);
/* We have space for 4 images to support atomic update
* of images. This is important for CRASH images since
* a panic can happen at any time...
*/
#define KEXEC_IMAGE_DEFAULT_BASE 0
#define KEXEC_IMAGE_CRASH_BASE 2
#define KEXEC_IMAGE_NR 4
enum low_crashinfo {
LOW_CRASHINFO_INVALID = 0,
LOW_CRASHINFO_NONE = 1,
LOW_CRASHINFO_MIN = 2,
LOW_CRASHINFO_ALL = 3
};
/* Low crashinfo mode. Start as INVALID so serveral codepaths can set up
* defaults without needing to know the state of the others. */
extern enum low_crashinfo low_crashinfo_mode;
extern paddr_t crashinfo_maxaddr_bits;
void kexec_early_calculations(void);
int machine_kexec_load(int type, int slot, xen_kexec_image_t *image);
void machine_kexec_unload(int type, int slot, xen_kexec_image_t *image);
void machine_kexec_reserved(xen_kexec_reserve_t *reservation);
void machine_reboot_kexec(xen_kexec_image_t *image);
void machine_kexec(xen_kexec_image_t *image);
void kexec_crash(void);
void kexec_crash_save_cpu(void);
crash_xen_info_t *kexec_crash_save_info(void);
void machine_crash_shutdown(void);
int machine_kexec_get(xen_kexec_range_t *range);
int machine_kexec_get_xen(xen_kexec_range_t *range);
void compat_machine_kexec(unsigned long rnk,
unsigned long indirection_page,
unsigned long *page_list,
unsigned long start_address);
/* vmcoreinfo stuff */
#define VMCOREINFO_BYTES (4096)
#define VMCOREINFO_NOTE_NAME "VMCOREINFO_XEN"
void arch_crash_save_vmcoreinfo(void);
void vmcoreinfo_append_str(const char *fmt, ...)
__attribute__ ((format (printf, 1, 2)));
#define VMCOREINFO_PAGESIZE(value) \
vmcoreinfo_append_str("PAGESIZE=%ld\n", value)
#define VMCOREINFO_SYMBOL(name) \
vmcoreinfo_append_str("SYMBOL(%s)=%lx\n", #name, (unsigned long)&name)
#define VMCOREINFO_SYMBOL_ALIAS(alias, name) \
vmcoreinfo_append_str("SYMBOL(%s)=%lx\n", #alias, (unsigned long)&name)
#define VMCOREINFO_STRUCT_SIZE(name) \
vmcoreinfo_append_str("SIZE(%s)=%zu\n", #name, sizeof(struct name))
#define VMCOREINFO_OFFSET(name, field) \
vmcoreinfo_append_str("OFFSET(%s.%s)=%lu\n", #name, #field, \
(unsigned long)offsetof(struct name, field))
#define VMCOREINFO_OFFSET_SUB(name, sub, field) \
vmcoreinfo_append_str("OFFSET(%s.%s)=%lu\n", #name, #field, \
(unsigned long)offsetof(struct name, sub.field))
#else /* !CONFIG_KEXEC */
#define crashinfo_maxaddr_bits 0
#endif
#endif /* __XEN_KEXEC_H__ */
/*
* Local variables:
* mode: C
* c-file-style: "BSD"
* c-basic-offset: 4
* tab-width: 4
* indent-tabs-mode: nil
* End:
*/
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