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From: Ingo Molnar <mingo@elte.hu>
To: "H. Peter Anvin" <hpa@zytor.com>
Cc: Jeremy Fitzhardinge <jeremy@goop.org>,
	Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
	Xen-devel <xen-devel@lists.xensource.com>
Subject: Re: __supported_pte_mask breaks PROT_NONE pages
Date: Thu, 5 Feb 2009 15:28:02 +0100	[thread overview]
Message-ID: <20090205142802.GD28443@elte.hu> (raw)
In-Reply-To: <498A7BE3.40405@zytor.com>


* H. Peter Anvin <hpa@zytor.com> wrote:

> [Dropped wli from the Cc: list because holomorphy.com doesn't resolve]
> 
> Jeremy Fitzhardinge wrote:
> > 
> > I guess the best fix is to only apply __supported_pte_mask to present
> > ptes.  This seems like the right solution to me, as it means we can
> > completely ignore the issue of overlaps between the present pte bits and
> > the non-present pte-as-swap entry use of the bits.  (Patch below.)
> > 
> 
> It certainly looks reasonable, so I have applied this patch to
> tip:x86/urgent.  However, since I'm on the way out to FOSDEM I won't be
> able to run any tests on this.

Looks good here so i pushed it out into tip:master.

Thanks,

	Ingo

  reply	other threads:[~2009-02-05 14:28 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2009-02-05  2:33 __supported_pte_mask breaks PROT_NONE pages Jeremy Fitzhardinge
2009-02-05  5:40 ` H. Peter Anvin
2009-02-05 14:28   ` Ingo Molnar [this message]
2009-02-05 14:29 ` Ingo Molnar
2009-02-05 17:23   ` Jeremy Fitzhardinge
2009-02-05 17:30     ` Ingo Molnar
2009-02-05 18:00       ` Jeremy Fitzhardinge

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