linux-kernel - Re: [PATCH -v5 5/5] Make reboot

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Message-ID: <516EFF3D.4040506@zytor.com>
Date:	Wed, 17 Apr 2013 12:59:57 -0700
From:	"H. Peter Anvin" <hpa@...or.com>
To:	Robin Holt <holt@....com>
CC:	Ingo Molnar <mingo@...nel.org>,
	"Srivatsa S. Bhat" <srivatsa.bhat@...ux.vnet.ibm.com>,
	Russ Anderson <rja@....com>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	the arch/x86 maintainers <x86@...nel.org>
Subject: Re: [PATCH -v5 5/5] Make reboot_cpuid a kernel parameter.

It is also worth noting that the documentation says reboot=s[mp]#
whereas in fact only reboot=s# parse correctly.  I consider this to be a
bug.

If we centralized the parser, we could take a string like

"reboot=bios,smp32,warm"

and parse it into:

reboot_cpu = 32
reboot_mode = "bw"

... and pass the information in that form to the arch layer.  I don't
think we can do more parsing at that in the main kernel.

	-hpa

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