From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Jan Beulich" Subject: Re: Re: [pvops xen/next ][iommu] attenpt to passthrough PCI-e usb controllor to PV domU SUCCESS :-) Date: Tue, 23 Mar 2010 11:23:36 +0000 Message-ID: <4BA8B2C802000078000366B8@vpn.id2.novell.com> References: <1017192770.20100321221949@eikelenboom.it> <1A42CE6F5F474C41B63392A5F80372B21D641D6D@shsmsx501.ccr.corp.intel.com> <1057357311.20100322111524@eikelenboom.it> <20100322191237.GB31521@phenom.dumpdata.com> <1609670718.20100322213550@eikelenboom.it> <20100322204916.GQ1878@reaktio.net> <1096247138.20100322222300@eikelenboom.it> <20100322212652.GT1878@reaktio.net> <20100322211209.GA653@phenom.dumpdata.com> <4BA8A3150200007800036677@vpn.id2.novell.com> <1213743694.20100323112355@eikelenboom.it> Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: quoted-printable Return-path: In-Reply-To: <1213743694.20100323112355@eikelenboom.it> Content-Disposition: inline List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Sender: xen-devel-bounces@lists.xensource.com Errors-To: xen-devel-bounces@lists.xensource.com To: Sander Eikelenboom Cc: "xen-devel@lists.xensource.com" , Konrad Rzeszutek Wilk List-Id: xen-devel@lists.xenproject.org >>> Sander Eikelenboom 23.03.10 11:23 >>> >How do these handle DMA related to the passthrough device in a PV-guest = then ? >>From what i remember from previous (debian) xen kernels was that at least = swiotlb=3Dforce was needed as kernel options to the domU kernel to = passthrough usb-controllers. Yes, exactly. But not "iommu=3Dsoft". Jan