From mboxrd@z Thu Jan 1 00:00:00 1970 From: Ian Campbell Subject: Re: Shared memory and event channel Date: Wed, 24 Feb 2010 09:38:33 +0000 Message-ID: <1267004313.11737.7501.camel@zakaz.uk.xensource.com> References: <29b32d341002211058l7e283336pa4fdfd0dc0b7124b@mail.gmail.com> <1266825344.4996.183.camel@ramone.somacoma.net> <29b32d341002220936q2f6f3cdaif3cbb766d1e644d1@mail.gmail.com> <1266874463.27288.57.camel@agari.van.xensource.com> <29b32d341002221416t4e00b899q18e07a69ad24b07f@mail.gmail.com> <1266917906.11737.5928.camel@zakaz.uk.xensource.com> <20100223144738.GC25741@phenom.dumpdata.com> <1266939735.11737.6397.camel@zakaz.uk.xensource.com> <29b32d341002230753r2a1a028dpf276f68b0cca48a@mail.gmail.com> <29b32d341002231126h703334b2u5af6ab9b2bbf00fc@mail.gmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <29b32d341002231126h703334b2u5af6ab9b2bbf00fc@mail.gmail.com> List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Sender: xen-devel-bounces@lists.xensource.com Errors-To: xen-devel-bounces@lists.xensource.com To: Ritu kaur Cc: Daniel, "xen-devel@lists.xensource.com" , "djmagee@mageenet.net" , Konrad Rzeszutek Wilk , Stodden List-Id: xen-devel@lists.xenproject.org On Tue, 2010-02-23 at 19:26 +0000, Ritu kaur wrote: > Need a clarification, using pci passthrough I believe it remove access > to device from dom0 and attaches the device to a domU and from then on > can only be accessed via that domU or is it possible to have dom0 and > a single domU gain access to device using pci passthrough? I guess > not, thought of checking. You are correct, a given hardware device is only directly accessible to a single domain at a time, be that dom0 or a domU via PCI passthrough. Ian.