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Fri, 24 Jun 2022 06:57:46 +0000 (GMT) Received: from li-ca45c2cc-336f-11b2-a85c-c6e71de567f1.ibm.com (unknown [9.171.95.53]) by d06av23.portsmouth.uk.ibm.com (Postfix) with ESMTP; Fri, 24 Jun 2022 06:57:46 +0000 (GMT) Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable In-Reply-To: <20220620125437.37122-2-pmorel@linux.ibm.com> References: <20220620125437.37122-1-pmorel@linux.ibm.com> <20220620125437.37122-2-pmorel@linux.ibm.com> Subject: Re: [PATCH v10 1/3] KVM: s390: ipte lock for SCA access should be contained in KVM From: Nico Boehr 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, pmorel@linux.ibm.com, wintera@linux.ibm.com, seiden@linux.ibm.com To: Pierre Morel , kvm@vger.kernel.org Message-ID: <165605386635.8840.16705488876454527148@localhost.localdomain> User-Agent: alot/0.8.1 Date: Fri, 24 Jun 2022 08:57:46 +0200 X-TM-AS-GCONF: 00 X-Proofpoint-ORIG-GUID: iwjZuO9ZdYlIA8yS7oLhWObprYRD7f3W X-Proofpoint-GUID: 4DJm1WFd1BiNFHqyRgOPEBt2db1ooMgH X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.205,Aquarius:18.0.883,Hydra:6.0.517,FMLib:17.11.122.1 definitions=2022-06-24_04,2022-06-23_01,2022-06-22_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 mlxscore=0 bulkscore=0 impostorscore=0 phishscore=0 priorityscore=1501 lowpriorityscore=0 suspectscore=0 spamscore=0 adultscore=0 clxscore=1015 mlxlogscore=972 malwarescore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2204290000 definitions=main-2206240023 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Quoting Pierre Morel (2022-06-20 14:54:35) > We can check if SIIF is enabled by testing the sclp_info struct > instead of testing the sie control block eca variable. > sclp.has_ssif is the only requirement to set ECA_SII anyway > so we can go straight to the source for that. >=20 > Signed-off-by: Pierre Morel > Reviewed-by: Janosch Frank > Reviewed-by: David Hildenbrand Reviewed-by: Nico Boehr