From: Ingo Molnar <mingo@elte.hu>
To: Jeremy Fitzhardinge <jeremy@goop.org>
Cc: the arch/x86 maintainers <x86@kernel.org>,
Stable Kernel <stable@kernel.org>,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH 2/2] xen: don't drop NX bit
Date: Fri, 20 Jun 2008 14:59:24 +0200 [thread overview]
Message-ID: <20080620125924.GK7439@elte.hu> (raw)
In-Reply-To: <4856E2D4.3020402@goop.org>
* Jeremy Fitzhardinge <jeremy@goop.org> wrote:
> When converting the pfn/mfn in a pagetable entry, make sure we mask
> out the protection flags properly. Formerly, this code was losing the
> NX bit, and not dealing with extra Xen-defined software flags in ptes.
>
> Because NX is now enforced properly, we must put the hypercall page
> into the .text segment so that it is executable.
applied all three fix patches to tip/x86/xen, thanks Jeremy.
i have also cherry-picked them into x86/urgent, to push v2.6.26-wards if
they passes testing. The commits are [in that order]:
# x86/urgent: 4653938: xen: Use wmb instead of rmb in xen_evtchn_do_upcall().
# x86/urgent: 05345b0: xen: mask unwanted pte bits in __supported_pte_mask
# x86/urgent: ebb9cfe: xen: don't drop NX bit
Ingo
prev parent reply other threads:[~2008-06-20 12:59 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-06-16 22:01 [PATCH 2/2] xen: don't drop NX bit Jeremy Fitzhardinge
2008-06-16 22:35 ` [stable] " Greg KH
2008-06-16 22:51 ` Jeremy Fitzhardinge
2008-06-16 23:37 ` Greg KH
2008-06-17 23:14 ` Chris Wright
2008-06-17 23:13 ` Chris Wright
2008-06-20 12:59 ` Ingo Molnar [this message]
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