arch/um/kernel/dtb.c

Source file repositories/reference/linux-study-clean/arch/um/kernel/dtb.c

File Facts

System
Linux kernel
Corpus path
arch/um/kernel/dtb.c
Extension
.c
Size
745 bytes
Lines
43
Domain
Architecture Layer
Bucket
arch/um
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.

Dependency Surface

Detected Declarations

Annotated Snippet

if (!early_init_dt_scan(area, __pa(area))) {
			pr_err("invalid DTB %s\n", dtb);
			memblock_free(area, size);
			return;
		}

		early_init_fdt_scan_reserved_mem();
	}

	unflatten_device_tree();
}

static int __init uml_dtb_setup(char *line, int *add)
{
	*add = 0;
	dtb = line;
	return 0;
}

__uml_setup("dtb=", uml_dtb_setup,
"dtb=<file>\n"
"    Boot the kernel with the devicetree blob from the specified file.\n\n"
);

Annotation

Implementation Notes