https://github.com/torvalds/linux
Revision f2ae9de019e4e2807d812ec4fe1df7c34788a0a0 authored by Łukasz Stelmach on 04 April 2018, 07:46:58 UTC, committed by Russell King on 19 May 2018, 10:35:56 UTC
The hypervisor setup before __enter_kernel destroys the value sotred in r1. The value needs to be restored just before the jump. Fixes: 6b52f7bdb888 ("ARM: hyp-stub: Use r1 for the soft-restart address") Signed-off-by: Łukasz Stelmach <l.stelmach@samsung.com> Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
1 parent e07e3c3
Tip revision: f2ae9de019e4e2807d812ec4fe1df7c34788a0a0 authored by Łukasz Stelmach on 04 April 2018, 07:46:58 UTC
ARM: 8758/1: decompressor: restore r1 and r2 just before jumping to the kernel
ARM: 8758/1: decompressor: restore r1 and r2 just before jumping to the kernel
Tip revision: f2ae9de
noinitramfs.c
/*
* init/noinitramfs.c
*
* Copyright (C) 2006, NXP Semiconductors, All Rights Reserved
* Author: Jean-Paul Saman <jean-paul.saman@nxp.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; version 2 of the License.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include <linux/init.h>
#include <linux/stat.h>
#include <linux/kdev_t.h>
#include <linux/syscalls.h>
/*
* Create a simple rootfs that is similar to the default initramfs
*/
static int __init default_rootfs(void)
{
int err;
err = ksys_mkdir((const char __user __force *) "/dev", 0755);
if (err < 0)
goto out;
err = ksys_mknod((const char __user __force *) "/dev/console",
S_IFCHR | S_IRUSR | S_IWUSR,
new_encode_dev(MKDEV(5, 1)));
if (err < 0)
goto out;
err = ksys_mkdir((const char __user __force *) "/root", 0700);
if (err < 0)
goto out;
return 0;
out:
printk(KERN_WARNING "Failed to create a rootfs\n");
return err;
}
rootfs_initcall(default_rootfs);
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