linux/init/do_mounts_initrd.c at master · linuxppc/linux

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// SPDX-License-Identifier: GPL-2.0

#include <linux/unistd.h>

#include <linux/kernel.h>

#include <linux/fs.h>

#include <linux/initrd.h>

#include "do_mounts.h"

unsigned long initrd_start, initrd_end;

int initrd_below_start_ok;

static int __initdata mount_initrd = 1;

phys_addr_t phys_initrd_start __initdata;

unsigned long phys_initrd_size __initdata;

static int __init no_initrd(char *str)

{

pr_warn("noinitrd option is deprecated and will be removed soon\n");

mount_initrd = 0;

return 1;

}

__setup("noinitrd", no_initrd);

static int __init early_initrdmem(char *p)

{

phys_addr_t start;

unsigned long size;

char *endp;

start = memparse(p, &endp);

if (*endp == ',') {

size = memparse(endp + 1, NULL);

phys_initrd_start = start;

phys_initrd_size = size;

}

return 0;

}

early_param("initrdmem", early_initrdmem);

static int __init early_initrd(char *p)

{

return early_initrdmem(p);

}

early_param("initrd", early_initrd);

void __init initrd_load(void)

{

if (mount_initrd) {

create_dev("/dev/ram", Root_RAM0);

* Load the initrd data into /dev/ram0.

if (rd_load_image()) {

pr_warn("using deprecated initrd support, will be removed in January 2027; "

"use initramfs instead or (as a last resort) /sys/firmware/initrd; "

"see section \"Workaround\" in "

"https://lore.kernel.org/lkml/20251010094047.3111495-1-safinaskar@gmail.com\n");

}

init_unlink("/initrd.image");

}

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