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ARM: 9092/1: xen: Register with kernel restart handler

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Register with kernel restart handler instead of setting arm_pm_restart
directly.

Select a high priority of 192 to ensure that default restart handlers
are replaced if Xen is running.

Acked-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Reviewed-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
This commit is contained in:
Guenter Roeck 2021-06-04 15:07:33 +01:00 committed by Russell King (Oracle)
parent 89a0b011fa
commit cfca563bc1
1 changed files with 10 additions and 2 deletions
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12
arch/arm/xen/enlighten.c
View file

@ -29,6 +29,7 @@
#include <linux/cpu.h>
#include <linux/console.h>
#include <linux/pvclock_gtod.h>
#include <linux/reboot.h>
#include <linux/time64.h>
#include <linux/timekeeping.h>
#include <linux/timekeeper_internal.h>
@ -181,11 +182,18 @@ void xen_reboot(int reason)
BUG_ON(rc);
}
static void xen_restart(enum reboot_mode reboot_mode, const char *cmd)
static int xen_restart(struct notifier_block *nb, unsigned long action,
void *data)
{
xen_reboot(SHUTDOWN_reboot);
return NOTIFY_DONE;
}
static struct notifier_block xen_restart_nb = {
.notifier_call = xen_restart,
.priority = 192,
};
static void xen_power_off(void)
{
@ -404,7 +412,7 @@ static int __init xen_pm_init(void)
return -ENODEV;
pm_power_off = xen_power_off;
arm_pm_restart = xen_restart;
register_restart_handler(&xen_restart_nb);
if (!xen_initial_domain()) {
struct timespec64 ts;
xen_read_wallclock(&ts);