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Tue, 14 Dec 2021 09:01:02 +0000 (GMT) Received: from [9.152.224.145] (unknown [9.152.224.145]) by d06av24.portsmouth.uk.ibm.com (Postfix) with ESMTP; Tue, 14 Dec 2021 09:01:02 +0000 (GMT) Message-ID: <01e383ae-9885-e384-f553-c3fbeb040192@linux.ibm.com> Date: Tue, 14 Dec 2021 10:01:02 +0100 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:91.0) Gecko/20100101 Thunderbird/91.4.0 Subject: Re: [PATCH v5 0/1] s390x: KVM: CPU Topology Content-Language: en-US To: Pierre Morel , 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> From: Alexandra Winter In-Reply-To: <20211122131443.66632-1-pmorel@linux.ibm.com> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-TM-AS-GCONF: 00 X-Proofpoint-GUID: wOon2DKproMoLx5yYgbaF5rCkCAIKw2W X-Proofpoint-ORIG-GUID: qIl1KYON2mGgsb8-WKBGzuqATTRmjL-X 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=2021-12-14_03,2021-12-13_01,2021-12-02_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 impostorscore=0 malwarescore=0 clxscore=1011 priorityscore=1501 spamscore=0 bulkscore=0 mlxlogscore=910 lowpriorityscore=0 mlxscore=0 adultscore=0 phishscore=0 suspectscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2110150000 definitions=main-2112140052 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 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 ??