From: Alok Kataria <akataria@vmware.com>
To: Ian Campbell <Ian.Campbell@citrix.com>
Cc: Jeremy Fitzhardinge <jeremy@goop.org>,
Thomas Gleixner <tglx@linutronix.de>,
Ingo Molnar <mingo@redhat.com>, "H. Peter Anvin" <hpa@zytor.com>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
Subject: Re: VMI and kmap_atomic_pte paravirt_op
Date: Thu, 25 Feb 2010 12:32:10 -0800 [thread overview]
Message-ID: <1267129930.10104.4.camel@ank32> (raw)
In-Reply-To: <1267127532.2488.7.camel@localhost.localdomain>
Hi Ian,
On Thu, 2010-02-25 at 11:52 -0800, Ian Campbell wrote:
> Hi Alok,
>
> How critical is the vmi_kmap_atomic_pte pv_mmu_op hook to VMI? Is it
> required for correct functionality or is it simply an optimisation?
>
> We think we may be able to do away with the Xen version of the hook and
> if VMI (which is deprecated) can live without it and you agree then I'll
> cook up a patch to remove it altogether.
As Jeremy suggests we will be fine with disabling high ptes for VMI.
Thanks for doing this.
Alok
>
> Thanks,
> Ian.
>
>
next prev parent reply other threads:[~2010-02-25 20:32 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-02-25 19:52 VMI and kmap_atomic_pte paravirt_op Ian Campbell
2010-02-25 20:15 ` Jeremy Fitzhardinge
2010-02-25 20:32 ` Alok Kataria [this message]
2010-02-26 9:04 ` Ian Campbell
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