c587e4a6a4
Add kexec support to ARM. Improvements like commandline handling could be made but this patch gives basic functional support. It uses the next available syscall number, 347. Once the syscall number is known, userspace support will be finalised/submitted to kexec-tools, various patches already exist. Originally based on a patch by Maxim Syrchin but updated and forward ported by various people. Signed-off-by: Richard Purdie <rpurdie@rpsys.net> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
31 lines
779 B
C
31 lines
779 B
C
#ifndef _ARM_KEXEC_H
|
|
#define _ARM_KEXEC_H
|
|
|
|
#ifdef CONFIG_KEXEC
|
|
|
|
/* Maximum physical address we can use pages from */
|
|
#define KEXEC_SOURCE_MEMORY_LIMIT (-1UL)
|
|
/* Maximum address we can reach in physical address mode */
|
|
#define KEXEC_DESTINATION_MEMORY_LIMIT (-1UL)
|
|
/* Maximum address we can use for the control code buffer */
|
|
#define KEXEC_CONTROL_MEMORY_LIMIT TASK_SIZE
|
|
|
|
#define KEXEC_CONTROL_CODE_SIZE 4096
|
|
|
|
#define KEXEC_ARCH KEXEC_ARCH_ARM
|
|
|
|
#ifndef __ASSEMBLY__
|
|
|
|
#define MAX_NOTE_BYTES 1024
|
|
|
|
struct kimage;
|
|
/* Provide a dummy definition to avoid build failures. */
|
|
static inline void crash_setup_regs(struct pt_regs *newregs,
|
|
struct pt_regs *oldregs) { }
|
|
|
|
#endif /* __ASSEMBLY__ */
|
|
|
|
#endif /* CONFIG_KEXEC */
|
|
|
|
#endif /* _ARM_KEXEC_H */
|