From: Andrew Cooper <andrew.cooper3@citrix.com>
To: 成会明 <chm.bj@hotmail.com>
Cc: xen-devel@lists.xen.org
Subject: Re: About "(XEN) Interrupt remapping disablde" log
Date: Fri, 1 Nov 2013 14:53:07 +0000 [thread overview]
Message-ID: <5273C053.4030709@citrix.com> (raw)
In-Reply-To: <BLU0-SMTP173C77692B047C01A52514D8FF50@phx.gbl>
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On 01/11/13 14:49, 成会明 wrote:
> hi,
>
>
> If Xen dump "(XEN) Interrupt remapping disalbed", can I stll pass
> through video adapter to domain U ?
>
> 1. I think interrupt remapping is must for passthrough pci
> device which can generate interrupt. right?
>
>
Interrupt remapping is not required for PCIPassthrough to function.
Simple DMA remapping is sufficient.
Interrupt remapping is required for security reasons. If you are also
the administrator of your domU and trust your domU graphics driver not
to maliciously attack Xen, then it is ok to not use interrupt remapping.
~Andrew
>
> thanks
> huiming
>
>
> _______________________________________________
> Xen-devel mailing list
> Xen-devel@lists.xen.org
> http://lists.xen.org/xen-devel
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prev parent reply other threads:[~2013-11-01 14:53 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-11-01 14:49 About "(XEN) Interrupt remapping disablde" log 成会明
2013-11-01 14:53 ` Andrew Cooper [this message]
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