From mboxrd@z Thu Jan 1 00:00:00 1970 From: Eric Auger Subject: Re: IRQFD support with GICv3 ITS (WAS: RE: [PATCH 00/13] arm64: KVM: GICv3 ITS emulation) Date: Thu, 18 Jun 2015 08:35:42 +0200 Message-ID: <558266BE.7040403@linaro.org> References: <042601d0a357$d3cec4d0$7b6c4e70$@samsung.com> <557842A0.9070503@linaro.org> <05da01d0a392$58bf5030$0a3df090$@samsung.com> <011601d0a8de$f75b8280$e6128780$@samsung.com> <558153D8.7040100@arm.com> <018801d0a8f3$3c3f8720$b4be9560$@samsung.com> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit Cc: kvm@vger.kernel.org To: Pavel Fedin , 'Andre Przywara' , 'Marc Zyngier' , christoffer.dall@linaro.org Return-path: Received: from mail-wi0-f176.google.com ([209.85.212.176]:36278 "EHLO mail-wi0-f176.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752500AbbFRGgD (ORCPT ); Thu, 18 Jun 2015 02:36:03 -0400 Received: by wicnd19 with SMTP id nd19so50010816wic.1 for ; Wed, 17 Jun 2015 23:36:02 -0700 (PDT) In-Reply-To: <018801d0a8f3$3c3f8720$b4be9560$@samsung.com> Sender: kvm-owner@vger.kernel.org List-ID: On 06/17/2015 01:46 PM, Pavel Fedin wrote: > Hello! > >> Yes, I am about to get a v2 ready, but mostly with some fixes. If you >> want to work on top of it, I can push a WIP branch to my repo. > > Thank you but no need to hurry up. I am busy with other things too. And, anyway, i work on top of my own branch here. > >> As Marc mentioned before, this whole irqfd story does not go together >> well with KVM and the ITS architecture, > > It actually does with GSI routing (see http://www.spinics.net/lists/kvm/msg117475.html, approach 2). Hi Pavel, I also have an implementation of GSI routing on ARM, basically a rebase of my old/first implementation of irqfd (https://patches.linaro.org/32261/) based on irqchip gsi routing & qemu part (https://lists.gnu.org/archive/html/qemu-devel/2014-07/msg01090.html). I will repost today as a base of discussion for evolutions. Best Regards Eric > >> so that needs some more >> investigation (which I am planning to do in the next days). > > Ok. > > Kind regards, > Pavel Fedin > Expert Engineer > Samsung Electronics Research center Russia > >