From: Joerg Roedel <joro-zLv9SwRftAIdnm+yROfE0A@public.gmane.org>
To: carsteno-tA70FqPdS9bQT0dZR+AlfA@public.gmane.org
Cc: kvm-devel-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org,
Andrea Arcangeli <andrea-atKUWr5tajBWk0Htik3J/w@public.gmane.org>,
Avi Kivity <avi-atKUWr5tajBWk0Htik3J/w@public.gmane.org>
Subject: Re: swapping with MMU Notifiers V2
Date: Tue, 29 Jan 2008 19:19:18 +0100 [thread overview]
Message-ID: <20080129181918.GA6344@8bytes.org> (raw)
In-Reply-To: <479F55D6.1090807-tA70FqPdS9bQT0dZR+AlfA@public.gmane.org>
On Tue, Jan 29, 2008 at 05:35:34PM +0100, Carsten Otte wrote:
> Avi Kivity wrote:
> > Every arch except s390 needs it. An ugly #ifndef
> > CONFIG_KVM_HARDWARE_TLB_SYNC is preferred to duplicating the code.
> BTW, from reading AMDs spec I don't expect NPT to need this vehicle
> for swapping either. They can just let core-vm page out guest pages
> and will receive a proper page fault in the host. Jörg can you confirm
> that?
Since NPT uses the host page table format it is in theory possible to
add the pagetable to the Linux MM rmap. In this case it would not be
necessary to use MMU notifiers. But I think this would complicate the
NPT support code significantly.
Joerg
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next prev parent reply other threads:[~2008-01-29 18:19 UTC|newest]
Thread overview: 36+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-01-29 14:50 swapping with MMU Notifiers V2 Andrea Arcangeli
[not found] ` <20080129145021.GJ7233-lysg2Xt5kKMAvxtiuMwx3w@public.gmane.org>
2008-01-29 15:13 ` Izik Eidus
2008-01-29 16:14 ` Carsten Otte
[not found] ` <479F50D6.4020005-tA70FqPdS9bQT0dZR+AlfA@public.gmane.org>
2008-01-29 16:24 ` Avi Kivity
[not found] ` <479F532C.1020503-atKUWr5tajBWk0Htik3J/w@public.gmane.org>
2008-01-29 16:31 ` Carsten Otte
2008-01-29 16:35 ` Carsten Otte
[not found] ` <479F55D6.1090807-tA70FqPdS9bQT0dZR+AlfA@public.gmane.org>
2008-01-29 17:02 ` Avi Kivity
[not found] ` <479F5C3C.7070501-atKUWr5tajBWk0Htik3J/w@public.gmane.org>
2008-01-29 18:13 ` Joerg Roedel
2008-01-29 17:54 ` Andrea Arcangeli
[not found] ` <20080129175420.GR7233-lysg2Xt5kKMAvxtiuMwx3w@public.gmane.org>
2008-01-29 18:05 ` Avi Kivity
[not found] ` <479F6AE0.3080702-atKUWr5tajBWk0Htik3J/w@public.gmane.org>
2008-01-29 18:34 ` Andrea Arcangeli
2008-01-30 11:26 ` Carsten Otte
[not found] ` <47A05EEF.3010701-tA70FqPdS9bQT0dZR+AlfA@public.gmane.org>
2008-01-30 11:42 ` Andrea Arcangeli
[not found] ` <20080130114206.GG7233-lysg2Xt5kKMAvxtiuMwx3w@public.gmane.org>
2008-01-30 15:01 ` Carsten Otte
[not found] ` <47A09142.4090307-tA70FqPdS9bQT0dZR+AlfA@public.gmane.org>
2008-01-30 15:09 ` Avi Kivity
[not found] ` <47A09342.1040708-atKUWr5tajBWk0Htik3J/w@public.gmane.org>
2008-01-30 15:14 ` Carsten Otte
2008-01-29 18:19 ` Joerg Roedel [this message]
[not found] ` <20080129181918.GA6344-zLv9SwRftAIdnm+yROfE0A@public.gmane.org>
2008-01-29 18:42 ` Andrea Arcangeli
2008-01-30 9:49 ` Carsten Otte
[not found] ` <47A04816.4090408-tA70FqPdS9bQT0dZR+AlfA@public.gmane.org>
2008-01-30 14:38 ` Joerg Roedel
2008-01-29 16:52 ` Andrea Arcangeli
[not found] ` <20080129165219.GN7233-lysg2Xt5kKMAvxtiuMwx3w@public.gmane.org>
2008-01-29 17:17 ` Carsten Otte
[not found] ` <479F5FBF.40203-tA70FqPdS9bQT0dZR+AlfA@public.gmane.org>
2008-01-29 17:39 ` Andrea Arcangeli
2008-01-29 16:49 ` Andrea Arcangeli
[not found] ` <20080129164954.GM7233-lysg2Xt5kKMAvxtiuMwx3w@public.gmane.org>
2008-01-29 17:04 ` Avi Kivity
[not found] ` <479F5CBB.5060702-atKUWr5tajBWk0Htik3J/w@public.gmane.org>
2008-01-29 17:49 ` Andrea Arcangeli
[not found] ` <20080129174955.GQ7233-lysg2Xt5kKMAvxtiuMwx3w@public.gmane.org>
2008-01-29 17:53 ` Avi Kivity
2008-01-29 17:17 ` Carsten Otte
2008-01-30 18:57 ` Andrea Arcangeli
[not found] ` <20080130185735.GS7233-lysg2Xt5kKMAvxtiuMwx3w@public.gmane.org>
2008-01-31 6:50 ` Avi Kivity
[not found] ` <47A16F99.8060502-atKUWr5tajBWk0Htik3J/w@public.gmane.org>
2008-01-31 10:15 ` Andrea Arcangeli
[not found] ` <20080131101519.GG7185-lysg2Xt5kKMAvxtiuMwx3w@public.gmane.org>
2008-01-31 10:34 ` Avi Kivity
[not found] ` <47A1A43D.6020203-atKUWr5tajBWk0Htik3J/w@public.gmane.org>
2008-01-31 12:58 ` Andrea Arcangeli
[not found] ` <20080131125842.GL7185-lysg2Xt5kKMAvxtiuMwx3w@public.gmane.org>
2008-01-31 18:56 ` Andrea Arcangeli
2008-02-11 8:20 ` Avi Kivity
2008-02-11 11:37 ` Andrea Arcangeli
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