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Message-ID: <20121129213402.GJ30789@liondog.tnic>
Date: Thu, 29 Nov 2012 22:34:02 +0100
From: Borislav Petkov <bp@...en8.de>
To: "H. Peter Anvin" <hpa@...ux.intel.com>
Cc: "H. Peter Anvin" <hpa@...or.com>, Ingo Molnar <mingo@...nel.org>,
Thomas Gleixner <tglx@...utronix.de>,
Linus Torvalds <torvalds@...ux-foundation.org>,
Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
Mario Gzuk <mariogzuk@...hnikz.de>
Subject: Re: [PATCH 8/8] x86, cleanups: Simplify sync_core() in the case of
no CPUID
On Thu, Nov 29, 2012 at 01:24:26PM -0800, H. Peter Anvin wrote:
> Thinking about it some more, there is another reason to not do
> this, which is that we don't want this particular CPUID to be
> paravirtualized; we're after the synchronizing side effect, not the
> CPUID return value itself.
Ok, you're right, this can be a PVOP call.
> So let's leave it as a primitive; it gets too confusing otherwise.
Ok.
Thanks.
--
Regards/Gruss,
Boris.
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