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// SPDX-License-Identifier: GPL-2.0-only
#include <linux/init.h>
#include <linux/of_fdt.h>
#include <linux/printk.h>
#include <linux/memblock.h>
#include <init.h>
#include "um_arch.h"
static char *dtb __initdata;
void uml_dtb_init(void)
{
long long size;
void *area;
area = uml_load_file(dtb, &size);
if (!area)
return;
if (!early_init_dt_scan(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)
{
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"
);
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