From mboxrd@z Thu Jan 1 00:00:00 1970 From: Konrad Rzeszutek Wilk Subject: Re: Xen + DVB = not working. memory allocation issue? Date: Wed, 19 Dec 2012 16:59:22 -0500 Message-ID: <20121219215922.GB12292@phenom.dumpdata.com> References: <20120921172901.GA6821@phenom.dumpdata.com> <099949C5-C4C0-4D57-A778-849C94781372@gmail.com> <20120925141013.GC16478@phenom.dumpdata.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Content-Disposition: inline In-Reply-To: List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Sender: xen-devel-bounces@lists.xen.org Errors-To: xen-devel-bounces@lists.xen.org To: Andy Burns Cc: "xen-devel@lists.xensource.com" List-Id: xen-devel@lists.xenproject.org On Thu, Oct 25, 2012 at 07:14:53PM +0100, Andy Burns wrote: > On 25 September 2012 15:10, Konrad Rzeszutek Wilk wrote: > > > So try also limiting how much memory the hypervisor has to eliminate > > this being a 4GB issue. Meaning on the _hypervisor_ line add 'mem=4G'. > > I previously required that with xen 4.1.x but now I've upgraded to Xen > 4.2 (and dom0 and domU to 3.6.x kernels) I no longer require it. > > Has the O/P got iommu=soft in the domU kernel command line if it's a PV domU? > > Also try 'pci=resource_alignment=BB:DD.F;BB:DD.F' etc on the > hypervisor command line for your relevant PCI device(s) > > Those tweaks are all I need to use these days for PCI passthrough :-) Sorry for the late response - walking through my mailbox. Did this thread ever get resolved?