linux-kernel - RE: [RFC] Dump interesting arch/platform info

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Date:	Mon, 1 Feb 2016 23:29:03 +0000
From:	"Luck, Tony" <tony.luck@...el.com>
To:	Borislav Petkov <bp@...en8.de>, "H. Peter Anvin" <hpa@...or.com>,
	"Ingo Molnar" <mingo@...nel.org>,
	Thomas Gleixner <tglx@...utronix.de>
CC:	Andy Lutomirski <luto@...capital.net>,
	Peter Zijlstra <peterz@...radead.org>,
	Steven Rostedt <rostedt@...dmis.org>,
	Brian Gerst <brgerst@...il.com>,
	lkml <linux-kernel@...r.kernel.org>
Subject: RE: [RFC] Dump interesting arch/platform info

> So the use case is you go, modprobe this thing and do
>
> cat /sys/kernel/debug/x86/archinfo
>
> Right now, it dumps only the GDT and even that is not fully done. But
> more interesting stuff should be added to it as need arises.
>
> Thoughts, ideas, suggestions?

On a high core count, multi-socket, machine I see almost 10K lines
of output from this.  If you add other things it will become a bit
of a jumble to parse.

Perhaps the module name "archinfo" is fine, but each separate thing
it shows should get its own file.  Starting with:

    /sys/kernel/debug/x86/gdtinfo

for the current output?

-Tony