linux-kernel - Re: [RFC PATCH] x86: Kill notsc

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Message-ID: <CALCETrX=MZKdOT+QHYPJcKe_ue-s0pjKZiYLejMPJWnXLkhv9A@mail.gmail.com>
Date:	Sun, 18 Oct 2015 21:47:21 -0700
From:	Andy Lutomirski <luto@...capital.net>
To:	Borislav Petkov <bp@...e.de>
Cc:	x86-ml <x86@...nel.org>, Peter Zijlstra <peterz@...radead.org>,
	Steven Rostedt <rostedt@...dmis.org>,
	lkml <linux-kernel@...r.kernel.org>
Subject: Re: [RFC PATCH] x86: Kill notsc

On Sun, Oct 18, 2015 at 7:20 AM, Borislav Petkov <bp@...e.de> wrote:
> Ok,
>
> let's try this and see where it takes us. Patch has been only lightly
> tested in kvm - I'll hammer on it for real once we agree about the
> general form.
>
> Aanyway, this patch is something Peter and I have been talking about on
> IRC a couple of times already. I finally found some free time to poke at
> it, here's the result.
>
> Thoughts?

I'm a bit confused.  Is it currently the case that, if you boot a
normal kernel on a TSC-less machine without notsc, it fails?

--Andy
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