From: Helge Deller deller@gmx.de
stable inclusion from stable-v6.6.3 commit 47b816649a186064b5c51bb1db2364a0e3afe5ed category: bugfix bugzilla: https://gitee.com/openeuler/kernel/issues/I8LBQP
Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=...
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commit d0c219472980d15f5cbc5c8aec736848bda3f235 upstream.
Signed-off-by: Helge Deller deller@gmx.de Cc: stable@vger.kernel.org # v6.0+ Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org Signed-off-by: Zheng Zengkai zhengzengkai@huawei.com --- drivers/parisc/power.c | 16 +++++++++++++++- 1 file changed, 15 insertions(+), 1 deletion(-)
diff --git a/drivers/parisc/power.c b/drivers/parisc/power.c index 6f5e5f0230d3..6ee0717e34ec 100644 --- a/drivers/parisc/power.c +++ b/drivers/parisc/power.c @@ -197,6 +197,14 @@ static struct notifier_block parisc_panic_block = { .priority = INT_MAX, };
+/* qemu soft power-off function */ +static int qemu_power_off(struct sys_off_data *data) +{ + /* this turns the system off via SeaBIOS */ + *(int *)data->cb_data = 0; + pdc_soft_power_button(1); + return NOTIFY_DONE; +}
static int __init power_init(void) { @@ -226,7 +234,13 @@ static int __init power_init(void) soft_power_reg); }
- power_task = kthread_run(kpowerswd, (void*)soft_power_reg, KTHREAD_NAME); + power_task = NULL; + if (running_on_qemu && soft_power_reg) + register_sys_off_handler(SYS_OFF_MODE_POWER_OFF, SYS_OFF_PRIO_DEFAULT, + qemu_power_off, (void *)soft_power_reg); + else + power_task = kthread_run(kpowerswd, (void*)soft_power_reg, + KTHREAD_NAME); if (IS_ERR(power_task)) { printk(KERN_ERR DRIVER_NAME ": thread creation failed. Driver not loaded.\n"); pdc_soft_power_button(0);