From: Jeremy Fitzhardinge <jeremy@goop.org>
To: Gerd Hoffmann <kraxel@redhat.com>
Cc: Xen Development Mailing List <xen-devel@lists.xensource.com>
Subject: Re: pv_ops & gntdev?
Date: Wed, 25 Feb 2009 13:48:13 -0800 [thread overview]
Message-ID: <49A5BC9D.5010801@goop.org> (raw)
In-Reply-To: <49A5BB7E.8030503@redhat.com>
Gerd Hoffmann wrote:
> Hmm. One more Q: How is pinning used? Is a process pinned all the
> time? Or can it happen that the pages are unpinned in case it does hang
> around idle for a while? Is there some way to prevent a process from
> being unpinned?
>
Pinning in the sense of Xen pagetables; a pagetable is pinned for the
whole time the process exists - it gets pinned at fork/exec time, and
unpin on exit. (It has no effect on the residency of the usermode
pages, though granted pages mapped into usermode would not be swappable
at all.)
> I somehow feel like checking out mmu notifiers first ...
>
Why's that? What would you use them for?
J
next prev parent reply other threads:[~2009-02-25 21:48 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-02-24 18:45 pv_ops & gntdev? Gerd Hoffmann
2009-02-24 21:18 ` Jeremy Fitzhardinge
2009-02-24 22:12 ` Gerd Hoffmann
2009-02-25 10:05 ` Gerd Hoffmann
2009-02-25 17:51 ` Jeremy Fitzhardinge
2009-02-25 18:37 ` Gerd Hoffmann
2009-02-25 20:06 ` Jeremy Fitzhardinge
2009-02-25 21:19 ` Gerd Hoffmann
2009-02-25 21:35 ` Jeremy Fitzhardinge
2009-02-25 21:43 ` Gerd Hoffmann
2009-02-25 21:48 ` Jeremy Fitzhardinge [this message]
2009-02-25 22:11 ` Gerd Hoffmann
2009-02-25 22:28 ` Jeremy Fitzhardinge
2009-02-25 22:42 ` Gerd Hoffmann
2009-02-25 22:59 ` Jeremy Fitzhardinge
2009-03-02 22:53 ` Gerd Hoffmann
2009-03-03 1:05 ` Jeremy Fitzhardinge
2009-03-03 22:59 ` Jeremy Fitzhardinge
2009-03-04 8:18 ` Gerd Hoffmann
2009-03-04 14:52 ` Gerd Hoffmann
2009-03-04 15:16 ` Jeremy Fitzhardinge
2009-03-04 15:32 ` Gerd Hoffmann
2009-02-25 18:56 ` Gerd Hoffmann
2009-02-25 20:10 ` Jeremy Fitzhardinge
2009-02-25 21:45 ` Gerd Hoffmann
2009-02-25 22:16 ` Gerd Hoffmann
2009-02-25 22:30 ` Jeremy Fitzhardinge
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