linux.git/drivers/power/reset/qemu-virt-ctrl.c, branch master Linux kernel source tree power: reset: Add QEMU virt-ctrl driver 2026-04-13T10:16:10+00:00 Kuan-Wei Chiu visitorckw@gmail.com 2026-04-12T21:19:51+00:00 ad9d2cd065d15c2ad992cb5db51a5bdc847e2909 Add a new driver for the 'virt-ctrl' device found on QEMU virt machines (e.g. m68k). This device provides a simple interface for system reset and power off [1]. This driver utilizes the modern system-off API to register callbacks for both system restart and power off. It also registers a reboot notifier to catch SYS_HALT events, ensuring that LINUX_REBOOT_CMD_HALT is properly handled. It is designed to be generic and can be reused by other architectures utilizing this QEMU device. Link: https://gitlab.com/qemu-project/qemu/-/blob/v10.2.0/hw/misc/virt_ctrl.c [1] Signed-off-by: Kuan-Wei Chiu <visitorckw@gmail.com> Acked-by: Sebastian Reichel <sebastian.reichel@collabora.com> Link: https://patch.msgid.link/20260412211952.3564033-2-visitorckw@gmail.com Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> 
Add a new driver for the 'virt-ctrl' device found on QEMU virt machines
(e.g. m68k). This device provides a simple interface for system reset
and power off [1].

This driver utilizes the modern system-off API to register callbacks
for both system restart and power off. It also registers a reboot
notifier to catch SYS_HALT events, ensuring that LINUX_REBOOT_CMD_HALT
is properly handled. It is designed to be generic and can be reused by
other architectures utilizing this QEMU device.

Link: https://gitlab.com/qemu-project/qemu/-/blob/v10.2.0/hw/misc/virt_ctrl.c [1]
Signed-off-by: Kuan-Wei Chiu <visitorckw@gmail.com>
Acked-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Link: https://patch.msgid.link/20260412211952.3564033-2-visitorckw@gmail.com
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>