From mboxrd@z Thu Jan 1 00:00:00 1970 From: Ian Campbell Subject: Re: Requesting for freeze exception for ARM/ITS patches Date: Fri, 10 Jul 2015 16:52:45 +0100 Message-ID: <1436543565.10074.106.camel@citrix.com> References: <559FC246020000780008F6EA@mail.emea.novell.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <559FC246020000780008F6EA@mail.emea.novell.com> List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Sender: xen-devel-bounces@lists.xen.org Errors-To: xen-devel-bounces@lists.xen.org To: Jan Beulich Cc: Wei Liu , Vijay Kilari , Stefano Stabellini , Prasun Kapoor , manish.jaggi@caviumnetworks.com, "xen-devel@lists.xen.org" , Julien Grall , Stefano Stabellini List-Id: xen-devel@lists.xenproject.org On Fri, 2015-07-10 at 12:01 +0100, Jan Beulich wrote: > >>> On 10.07.15 at 12:46, wrote: > > I would like to have freeze exception for ITS feature on ARM64. > > Design got freeze few weeks back and I have sent v4 version of patch series > > today. > > > > This patches will not impact any generic code of other platforms and have > > minor > > changes generic arm related code. Also these patches are only for > > ARM64 platform. > > > > These patches are pre-requisite for PCI support / Pass-through support > > on ARM64 platforms. > > But what good will it do for the release when it's only a prereq for > further work? I think this may have been true of v3 but I think it is underselling v4. AFAICT with the final patch in v4 Xen will actually be capable of booting on a ThunderX platform and starting guests. It will simply lack PCI passthrough capabilities (as do all ARM platforms today). I think that's a reasonable thing to try and get into 4.6. Ian.