Andrew Donnellan <andrew.donnel...@au1.ibm.com> writes: > On 23/11/16 12:37, Andrew Donnellan wrote: >>> There's existing logic in kernel/reboot.c to handle a reboot= command >>> line parameter, which can set the reboot_mode, so my preference would be >>> that we use that. >>> >>> Currently we completely ignore the reboot_mode, so there's no backward >>> compatibility issue. >>> >>> It looks like the default is REBOOT_COLD, whatever that means. So I >>> think we could define that on powernv REBOOT_HARD means "do a full IPL". >> >> Sounds good. > > Thinking about this more - you can't change that at runtime. :(
Yeah. Is that a problem? From my POV this is basically a "my firmware is broken" workaround, so you're going to want to set it permanently until you update your firmware. >>> Or we could use "force", which already exists, though I can't quite see >>> what that actually means on x86. >> >> Hmm. > > It looks like that on x86, if reboot_force = 1, we don't call > machine_shutdown() and go straight to __machine_emergency_restart()? I think so. But I don't know what that actually means from a user's point of view. cheers
