From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Raj, Ashok" Subject: Re: [PATCH] vfio/pci: Some buggy virtual functions incorrectly report 1 for intx. Date: Thu, 9 Aug 2018 16:03:11 -0700 Message-ID: <20180809230311.GA79703@otc-nc-03> References: <1533843426-79170-1-git-send-email-ashok.raj@intel.com> <20180809134417.50de7fe7@t450s.home> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Cc: Ashok Raj , kvm-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, iommu-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org, Bjorn Helgaas , Gage Eads To: Alex Williamson Return-path: Content-Disposition: inline In-Reply-To: <20180809134417.50de7fe7-1yVPhWWZRC1BDLzU/O5InQ@public.gmane.org> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: iommu-bounces-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org Errors-To: iommu-bounces-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org List-Id: kvm.vger.kernel.org On Thu, Aug 09, 2018 at 01:44:17PM -0600, Alex Williamson wrote: > On Thu, 9 Aug 2018 12:37:06 -0700 > Ashok Raj wrote: > > > PCI_INTERRUPT_PIN should always read 0 for SRIOV Virtual Functions. > > > > Some SRIOV devices have some bugs in RTL and VF's end up reading 1 > > instead of 0 for the PIN. > > Hi Ashok, > > One question, can we identify which VFs are known to have this issue so > that users (and downstreams) can know how to prioritize this patch? > Thanks, Hi Alex, The hardware isn't public yet, so can't talk about it :-(. Once this patch gets merged, will let the OSV engagement folks drive it for inclusions. We could mark this for stable, but i would rather wait until we know the timeline when they are expecting it to be in. It shouldn't break anything since we are just enforcing the spec. Cheers, Ashok