From: Malcolm Crossley <malcolm.crossley@citrix.com>
To: xen-devel@lists.xen.org
Subject: Re: One question about the hypercall to translate gfn to mfn.
Date: Tue, 9 Dec 2014 11:28:22 +0000 [thread overview]
Message-ID: <5486DCD6.5000302@citrix.com> (raw)
In-Reply-To: <5486E9B8020000780004E163@mail.emea.novell.com>
On 09/12/14 11:23, Jan Beulich wrote:
>>>> On 09.12.14 at 12:17, <Paul.Durrant@citrix.com> wrote:
>> I think we want be able to avoid setting up a PTE in the MMU since it's not
>> needed in most (or perhaps all?) cases.
>
> With shared page tables, there's no way to do one without the other.
>
Interestingly the IOMMU in front of the Intel GPU is only capable of
handling 4k pages and so we wouldn't end up with share page tables being
used.
For other PCI device's then shared page tables will be a problem.
Malcolm
> Jan
>
>
> _______________________________________________
> Xen-devel mailing list
> Xen-devel@lists.xen.org
> http://lists.xen.org/xen-devel
>
next prev parent reply other threads:[~2014-12-09 11:28 UTC|newest]
Thread overview: 59+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-12-09 10:10 One question about the hypercall to translate gfn to mfn Yu, Zhang
2014-12-09 10:19 ` Paul Durrant
2014-12-09 10:37 ` Yu, Zhang
2014-12-09 10:50 ` Jan Beulich
2014-12-10 1:07 ` Tian, Kevin
2014-12-10 8:39 ` Jan Beulich
2014-12-10 8:47 ` Tian, Kevin
2014-12-10 9:16 ` Jan Beulich
2014-12-10 9:51 ` Tian, Kevin
2014-12-10 10:07 ` Jan Beulich
2014-12-10 11:04 ` Malcolm Crossley
2014-12-10 8:50 ` Tian, Kevin
2014-12-09 10:51 ` Malcolm Crossley
2014-12-10 1:22 ` Tian, Kevin
2014-12-09 10:38 ` Jan Beulich
2014-12-09 10:46 ` Tim Deegan
2014-12-09 11:05 ` Paul Durrant
2014-12-09 11:11 ` Ian Campbell
2014-12-09 11:17 ` Paul Durrant
2014-12-09 11:23 ` Jan Beulich
2014-12-09 11:28 ` Malcolm Crossley [this message]
2014-12-09 11:29 ` Ian Campbell
2014-12-09 11:43 ` Paul Durrant
2014-12-10 1:48 ` Tian, Kevin
2014-12-10 10:11 ` Ian Campbell
2014-12-11 1:50 ` Tian, Kevin
2014-12-10 1:14 ` Tian, Kevin
2014-12-10 10:36 ` Jan Beulich
2014-12-11 1:45 ` Tian, Kevin
2014-12-10 10:55 ` Tim Deegan
2014-12-11 1:41 ` Tian, Kevin
2014-12-11 16:46 ` Tim Deegan
2014-12-12 7:24 ` Tian, Kevin
2014-12-12 10:54 ` Jan Beulich
2014-12-15 6:25 ` Tian, Kevin
2014-12-15 8:44 ` Jan Beulich
2014-12-15 9:05 ` Tian, Kevin
2014-12-15 9:22 ` Jan Beulich
2014-12-15 11:16 ` Tian, Kevin
2014-12-15 11:27 ` Jan Beulich
2014-12-15 15:22 ` Stefano Stabellini
2014-12-15 16:01 ` Jan Beulich
2014-12-15 16:15 ` Stefano Stabellini
2014-12-15 16:28 ` David Vrabel
2014-12-15 16:28 ` Jan Beulich
2014-12-18 15:46 ` Tim Deegan
2015-01-06 8:56 ` Tian, Kevin
2015-01-08 12:43 ` Tim Deegan
2015-01-09 8:02 ` Tian, Kevin
2015-01-09 20:08 ` Konrad Rzeszutek Wilk
2015-01-12 11:14 ` David Vrabel
2014-12-11 21:29 ` Tim Deegan
2014-12-12 6:29 ` Tian, Kevin
2014-12-18 16:08 ` Tim Deegan
2014-12-18 17:01 ` Andrew Cooper
2015-01-05 15:49 ` George Dunlap
2015-01-06 8:42 ` Tian, Kevin
2015-01-06 10:35 ` Ian Campbell
2014-12-12 7:30 ` Tian, Kevin
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