1What: /sys/kernel/reboot 2Date: November 2020 3KernelVersion: 5.11 4Contact: Matteo Croce <mcroce@microsoft.com> 5Description: Interface to set the kernel reboot behavior, similarly to 6 what can be done via the reboot= cmdline option. 7 (see Documentation/admin-guide/kernel-parameters.txt) 8 9What: /sys/kernel/reboot/mode 10Date: November 2020 11KernelVersion: 5.11 12Contact: Matteo Croce <mcroce@microsoft.com> 13Description: Reboot mode. Valid values are: cold warm hard soft gpio 14 15What: /sys/kernel/reboot/type 16Date: November 2020 17KernelVersion: 5.11 18Contact: Matteo Croce <mcroce@microsoft.com> 19Description: Reboot type. Valid values are: bios acpi kbd triple efi pci 20 21What: /sys/kernel/reboot/cpu 22Date: November 2020 23KernelVersion: 5.11 24Contact: Matteo Croce <mcroce@microsoft.com> 25Description: CPU number to use to reboot. 26 27What: /sys/kernel/reboot/force 28Date: November 2020 29KernelVersion: 5.11 30Contact: Matteo Croce <mcroce@microsoft.com> 31Description: Don't wait for any other CPUs on reboot and 32 avoid anything that could hang. 33