Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755276AbbBTRiI (ORCPT ); Fri, 20 Feb 2015 12:38:08 -0500 Received: from e06smtp11.uk.ibm.com ([195.75.94.107]:43138 "EHLO e06smtp11.uk.ibm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754554AbbBTRiE (ORCPT ); Fri, 20 Feb 2015 12:38:04 -0500 Date: Fri, 20 Feb 2015 18:37:48 +0100 From: Michael Mueller To: Alexander Graf Cc: "qemu-devel@nongnu.org" , "kvm@vger.kernel.org" , "linux-s390@vger.kernel.org" , "linux-kernel@vger.kernel.org" , Gleb Natapov , Christian Borntraeger , "Jason J. Herne" , Cornelia Huck , Paolo Bonzini , Andreas Faerber , Richard Henderson Subject: Re: [Qemu-devel] [RFC PATCH v2 04/15] cpu-model/s390: Introduce S390 CPU models Message-ID: <20150220183748.45b32e11@bee> In-Reply-To: <54E76790.1030700@suse.de> References: <1424183053-4310-1-git-send-email-mimu@linux.vnet.ibm.com> <1424183053-4310-5-git-send-email-mimu@linux.vnet.ibm.com> <54E73C8F.7000202@suse.de> <20150220160046.4743acc8@bee> <89E3550E-9E2B-4D95-A809-B7C64EBCD7C5@suse.de> <20150220164944.4eb4eeb3@bee> <54E76790.1030700@suse.de> Organization: IBM X-Mailer: Claws Mail 3.9.3 (GTK+ 2.24.23; x86_64-pc-linux-gnu) MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit X-TM-AS-MML: disable X-Content-Scanned: Fidelis XPS MAILER x-cbid: 15022017-0041-0000-0000-00000373AECB Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1097 Lines: 29 On Fri, 20 Feb 2015 17:57:52 +0100 Alexander Graf wrote: > Because all CPUs we have in our list only expose 128 bits? Here a STFLE result on a EC12 GA2, already more than 128 bits... Is that model on the list? [mimu@p57lp59 s390xfac]$ ./s390xfac -b fac[0] = 0xfbfffffbfcfff840 fac[1] = 0xffde000000000000 fac[2] = 0x1800000000000000 > > > I want to have this independent from a future machine of the z/Arch. The kernel stores the > > full facility set, KVM does and there is no good reason for QEMU not to do. If other > > accelerators decide to just implement 64 or 128 bits of facilities that's ok... > > So you want to support CPUs that are not part of the list? The architecture at least defines more than 2 or 3. Do you want me to limit it to an arbitrary size?. Only in QEMU or also in the KVM interface? Thanks Michael -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/