From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from ozlabs.org (ozlabs.org [103.22.144.67]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 09F501A0D2D for ; Fri, 13 Nov 2015 15:59:07 +1100 (AEDT) Received: from e17.ny.us.ibm.com (e17.ny.us.ibm.com [129.33.205.207]) (using TLSv1 with cipher CAMELLIA256-SHA (256/256 bits)) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id 1A983140213 for ; Fri, 13 Nov 2015 15:59:05 +1100 (AEDT) Received: from localhost by e17.ny.us.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! Violators will be prosecuted for from ; Thu, 12 Nov 2015 23:59:04 -0500 Received: from b01cxnp23033.gho.pok.ibm.com (b01cxnp23033.gho.pok.ibm.com [9.57.198.28]) by d01dlp01.pok.ibm.com (Postfix) with ESMTP id 5D93A38C8046 for ; Thu, 12 Nov 2015 23:59:02 -0500 (EST) Received: from d01av04.pok.ibm.com (d01av04.pok.ibm.com [9.56.224.64]) by b01cxnp23033.gho.pok.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id tAD4x2fQ56623226 for ; Fri, 13 Nov 2015 04:59:02 GMT Received: from d01av04.pok.ibm.com (localhost [127.0.0.1]) by d01av04.pok.ibm.com (8.14.4/8.14.4/NCO v10.0 AVout) with ESMTP id tAD4x1UG013824 for ; Thu, 12 Nov 2015 23:59:02 -0500 Message-ID: <56456E0C.1040909@linux.vnet.ibm.com> Date: Fri, 13 Nov 2015 10:28:52 +0530 From: Aravinda Prasad MIME-Version: 1.0 To: Daniel Axtens CC: David Gibson , kvm@vger.kernel.org, michaele@au1.ibm.com, mahesh@linux.vnet.ibm.com, agraf@suse.de, kvm-ppc@vger.kernel.org, linuxppc-dev@ozlabs.org Subject: Re: [PATCH] KVM: PPC: Exit guest upon fatal machine check exception References: <20151111165845.3721.98296.stgit@aravindap> <876118ymy4.fsf@gamma.ozlabs.ibm.com> <20151112033816.GJ5852@voom.redhat.com> <87bnazizkp.fsf@gamma.ozlabs.ibm.com> <5644CABE.3010905@linux.vnet.ibm.com> <87pozezypm.fsf@gamma.ozlabs.ibm.com> In-Reply-To: <87pozezypm.fsf@gamma.ozlabs.ibm.com> Content-Type: text/plain; charset=ISO-8859-1 List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , On Friday 13 November 2015 03:07 AM, Daniel Axtens wrote: > Aravinda Prasad writes: > >>> Yeah, it would be good not to break this. >> >> I am not familiar with CAPI. Does this affect CAPI? > > When a CAPI card experiences an EEH event, any cache lines it holds are > filled with SUEs (Special UEs, interpreted by the kernel the same as > regular UEs). When these are read, we get an MCE. Currently CAPI does > not support virtualisation, but that is actively being worked > on. There's a _very_ good chance it will then be backported to various > distros, which could have old qemu. > > Therefore, I'd ideally like to make sure UEs in KVM guests work properly > and continue to do so in all combinations of kernel and qemu. I'm > following up the email from Mahesh that you linked: I'm not sure I quite > follow his logic so I'll try to make sense of that and then get back to > you. sure. Thanks. Regards, Aravinda > > Regards, > Daniel > -- Regards, Aravinda