From mboxrd@z Thu Jan 1 00:00:00 1970 From: Michael Mueller Subject: Re: [Qemu-devel] [RFC PATCH v2 04/15] cpu-model/s390: Introduce S390 CPU models Date: Fri, 20 Feb 2015 18:37:48 +0100 Message-ID: <20150220183748.45b32e11@bee> 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> Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit 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 To: Alexander Graf Return-path: In-Reply-To: <54E76790.1030700@suse.de> Sender: linux-kernel-owner@vger.kernel.org List-Id: kvm.vger.kernel.org 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