* Ard Biesheuvel <ard.biesheuvel@xxxxxxxxxx> wrote: > On Wed, 17 Apr 2019 at 11:23, Ingo Molnar <mingo@xxxxxxxxxx> wrote: > > > > > > * Prakhya, Sai Praneeth <sai.praneeth.prakhya@xxxxxxxxx> wrote: > > > > > I will ask around internally to check if it is a good idea to make EFI > > > reboot the default method when the machine is booted in EFI mode. > > > > Or whether there's some robust signature that indicates "modern EFI > > system where EFI reboot is the primary method"? > > > > Major EFI version or ACPI version or such? > > > > I am actually at Microsoft right now, and I managed to get > clarification on how Windows deals with this: Windows will attempt to > use ACPI reboot first, and will only attempt to use anything else if > that fails. EFI reset is actually its least preferred option, and so > it is highly likely that it is untested on most of the shipping x86 > hardware if any of the other methods work. > > So let's not touch this. Agreed and that's really useful information, thanks! Ingo
