arch/loongarch/include/asm/kexec.h

File Facts

System

Linux kernel

Corpus path

arch/loongarch/include/asm/kexec.h

Extension

.h

Size

1972 bytes

Lines

73

Domain

Architecture Layer

Bucket

arch/loongarch

Inferred role

Architecture Layer: implementation source

Status

source implementation candidate

Why This File Exists

CPU and platform-specific kernel glue: boot entry, traps, syscall entry, interrupts, page tables, context switch, and low-level barriers.

• CPU and platform-specific kernel glue: boot entry, traps, syscall entry, interrupts, page tables, context switch, and low-level barriers.
• Uses kernel synchronization; read lock ordering, sleepability, and interrupt context assumptions before translating.
• Defines or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.

Dependency Surface

• asm/stacktrace.h
• asm/page.h

Detected Declarations

• struct kimage_arch
• struct kimage
• function Copyright

Annotated Snippet

struct kimage_arch {
	unsigned long efi_boot;
	unsigned long cmdline_ptr;
	unsigned long systable_ptr;
};

#ifdef CONFIG_KEXEC_FILE
extern const struct kexec_file_ops kexec_efi_ops;
extern const struct kexec_file_ops kexec_elf_ops;

int arch_kimage_file_post_load_cleanup(struct kimage *image);
#define arch_kimage_file_post_load_cleanup arch_kimage_file_post_load_cleanup

extern int load_other_segments(struct kimage *image,
		unsigned long kernel_load_addr, unsigned long kernel_size,
		char *initrd, unsigned long initrd_len, char *cmdline, unsigned long cmdline_len);
#endif

typedef void (*do_kexec_t)(unsigned long efi_boot,
			   unsigned long cmdline_ptr,
			   unsigned long systable_ptr,
			   unsigned long start_addr,
			   unsigned long first_ind_entry);

struct kimage;
extern const unsigned char relocate_new_kernel[];
extern const size_t relocate_new_kernel_size;
extern void kexec_reboot(void);

#ifdef CONFIG_SMP
extern atomic_t kexec_ready_to_reboot;
extern const unsigned char kexec_smp_wait[];
#endif

#endif /* !_ASM_KEXEC_H */

Annotation

• Immediate include surface: `asm/stacktrace.h`, `asm/page.h`.
• Detected declarations: `struct kimage_arch`, `struct kimage`, `function Copyright`.
• Atlas domain: Architecture Layer / arch/loongarch.
• Implementation status: source implementation candidate.
• Synchronization appears in or near this file; preserve lock ordering, sleepability, and interrupt-context constraints.

Implementation Notes

• This generated page is the file-by-file coverage layer; curated subsystem chapters should link here when they synthesize a multi-file control flow.
• Core OS pages should be promoted from atlas-only to deep-reviewed when they explain data structures, invariants, locking, lifecycle, and C implementation snippets.
• Driver-family pages are intentionally pattern-oriented unless they are part of the selected PCIe/NVMe representative device path.