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. :(
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()?
--
Andrew Donnellan OzLabs, ADL Canberra
andrew.donnel...@au1.ibm.com IBM Australia Limited
