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Thu, 16 Dec 2021 15:14:58 +0000 (GMT) Received: from [9.171.32.185] (unknown [9.171.32.185]) by d06av26.portsmouth.uk.ibm.com (Postfix) with ESMTP; Thu, 16 Dec 2021 15:14:58 +0000 (GMT) Message-ID: <80d924b1-d512-bf64-17c9-746a80776d28@linux.ibm.com> Date: Thu, 16 Dec 2021 16:16:02 +0100 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:91.0) Gecko/20100101 Thunderbird/91.2.0 Subject: Re: [PATCH v5 0/1] s390x: KVM: CPU Topology Content-Language: en-US To: Alexandra Winter , kvm@vger.kernel.org Cc: linux-s390@vger.kernel.org, linux-kernel@vger.kernel.org, borntraeger@de.ibm.com, frankja@linux.ibm.com, cohuck@redhat.com, david@redhat.com, thuth@redhat.com, imbrenda@linux.ibm.com, hca@linux.ibm.com, gor@linux.ibm.com References: <20211122131443.66632-1-pmorel@linux.ibm.com> <01e383ae-9885-e384-f553-c3fbeb040192@linux.ibm.com> From: Pierre Morel In-Reply-To: <01e383ae-9885-e384-f553-c3fbeb040192@linux.ibm.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-TM-AS-GCONF: 00 X-Proofpoint-GUID: eK_QHQJkfZjbbBxTkSOVeylPZKcihpD6 X-Proofpoint-ORIG-GUID: ICzbj21SKKpxBeeBU_XPeGtshQJ3ANeu X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.205,Aquarius:18.0.790,Hydra:6.0.425,FMLib:17.11.62.513 definitions=2021-12-16_05,2021-12-16_01,2021-12-02_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 impostorscore=0 spamscore=0 adultscore=0 bulkscore=0 mlxscore=0 suspectscore=0 malwarescore=0 phishscore=0 clxscore=1015 mlxlogscore=999 priorityscore=1501 lowpriorityscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2110150000 definitions=main-2112160085 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 12/14/21 10:01, Alexandra Winter wrote: > > > On 22.11.21 14:14, Pierre Morel wrote: >> Hi all, >> >> This new series add the implementation of interpretation for >> the PTF instruction. >> >> The series provides: >> 1- interception of the STSI instruction forwarding the CPU topology >> 2- interpretation of the PTF instruction >> 3- a KVM capability for the userland hypervisor to ask KVM to >> setup PTF interpretation. >> >> >> 0- Foreword >> > [...] >> We will ignore the following changes inside a STSI(15.1.2): >> - polarization: only horizontal polarization is currently used in Linux. >> - CPU Type: only IFL Type are supported in Linux > I thought Linux can also run on General Purpose CPUs ?? > You are right, I will change these comments. Thanks -- Pierre Morel IBM Lab Boeblingen