This is a note to let you know that I've just added the patch titled
parisc/power: Add power soft-off when running on qemu
to the 5.4-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
parisc-power-add-power-soft-off-when-running-on-qemu.patch
and it can be found in the queue-5.4 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From d0c219472980d15f5cbc5c8aec736848bda3f235 Mon Sep 17 00:00:00 2001
From: Helge Deller <deller@xxxxxx>
Date: Tue, 17 Oct 2023 22:19:53 +0200
Subject: parisc/power: Add power soft-off when running on qemu
From: Helge Deller <deller@xxxxxx>
commit d0c219472980d15f5cbc5c8aec736848bda3f235 upstream.
Signed-off-by: Helge Deller <deller@xxxxxx>
Cc: stable@xxxxxxxxxxxxxxx # v6.0+
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/parisc/power.c | 16 +++++++++++++++-
1 file changed, 15 insertions(+), 1 deletion(-)
--- a/drivers/parisc/power.c
+++ b/drivers/parisc/power.c
@@ -192,6 +192,14 @@ static struct notifier_block parisc_pani
.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)
{
@@ -221,7 +229,13 @@ 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);
Patches currently in stable-queue which might be from deller@xxxxxx are
queue-5.4/parisc-power-add-power-soft-off-when-running-on-qemu.patch
queue-5.4/parisc-pdc-add-width-field-to-struct-pdc_model.patch
