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Fri, 24 Jul 2026 16:14:16 +0000 (GMT) Received: from li-4c4c4544-004d-4810-8043-b7c04f423534.ibm.com.com (unknown [9.61.50.28]) by smtpav06.wdc07v.mail.ibm.com (Postfix) with ESMTP; Fri, 24 Jul 2026 16:14:16 +0000 (GMT) From: Anthony Krowiak To: linux-s390@vger.kernel.org, linux-kernel@vger.kernel.org, kvm@vger.kernel.org Cc: jjherne@linux.ibm.com, borntraeger@de.ibm.com, mjrosato@linux.ibm.com, pasic@linux.ibm.com, alex@shazbot.org, kwankhede@nvidia.com, fiuczy@linux.ibm.com, pbonzini@redhat.com, frankja@linux.ibm.com, imbrenda@linux.ibm.com, agordeev@linux.ibm.com, hca@linux.ibm.com, gor@linux.ibm.com Subject: [PATCH v5 14/15] s390/vfio-ap: Add 'migratable' feature to sysfs 'features' attribute Date: Fri, 24 Jul 2026 12:13:50 -0400 Message-ID: <20260724161351.1802644-15-akrowiak@linux.ibm.com> X-Mailer: git-send-email 2.53.0 In-Reply-To: <20260724161351.1802644-1-akrowiak@linux.ibm.com> References: <20260724161351.1802644-1-akrowiak@linux.ibm.com> Precedence: bulk X-Mailing-List: kvm@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-TM-AS-GCONF: 00 X-Proofpoint-Spam-Info: AW1haW4tMjYwNzI0MDE0NSBTYWx0ZWRfX+Qtgjd5UjSTU PZMIPMAo5yrSkPgBLVFAtzmNQMi0SI1RpaP6hVWhZlZSUmwk+S5DoLB+TnwXCDPbT8Dxe9uIwHV 3Kvxj99HamuKhGddWHlUGszHS/ZplCs= X-Proofpoint-ORIG-GUID: GWsqgRMRj23gH4sJSL2tuHVJAKpCT6uy X-Proofpoint-GUID: GWsqgRMRj23gH4sJSL2tuHVJAKpCT6uy X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwNzI0MDE0NSBTYWx0ZWRfX3X4aeyZcCe9r 06fqQ4s8Wpy8JXGy1YnSQboKj0ZuB/sz7tkR9IYg/9ePCWrABphGAby1yRWCiuObNX+kvXa4eTX lriCCo2Je8PjXWwIzNTVksMWxjHzokqcgsjx62EEjhsNIsoSbFZ+gf6ZfAMdcgeoqpW7iULMOtt ibxGdh5SGDR6HAesIKzimykUMEFSkDCtz3ZcHX1WvTBaeOTCWHeesNxOzR9iJKQFlme2IJacpVk 4ewJnz2Uc95oquRRlS4upun3qkmQKmBHmQQMnbeGKwPQ+0JyILhErqAPt6Co1ckRhOts12tbXyN wNFD1ewvwcroFgnrAlWZ6KwZS+7F+96yvpXNVRSQ1dhll96Nj5SwHci7bDpj4e+40Tf0+9Zv8I2 adM8b0kw1LbtXAaJMaQE6QxaRvqdHrIxsJmN/LCELpDfi20xe2nQF63f2IKpvIHVje6RLfLcLQi f0qY1GHKd4guUmPd05g== X-Authority-Analysis: v=2.4 cv=du3rzVg4 c=1 sm=1 tr=0 ts=6a638f5c cx=c_pps a=5BHTudwdYE3Te8bg5FgnPg==:117 a=5BHTudwdYE3Te8bg5FgnPg==:17 a=RAioF0-LDSMA:10 a=VkNPw1HP01LnGYTKEx00:22 a=RnoormkPH1_aCDwRdu11:22 a=iQ6ETzBq9ecOQQE5vZCe:22 a=VnNF1IyMAAAA:8 a=CB_8iKbeFirw2v3l3xgA:9 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1143,Hydra:6.1.134,FMLib:17.12.100.49 definitions=2026-07-24_03,2026-07-24_02,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 adultscore=0 clxscore=1015 malwarescore=0 spamscore=0 impostorscore=0 phishscore=0 bulkscore=0 priorityscore=1501 lowpriorityscore=0 suspectscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2606150000 definitions=main-2607240145 Add the 'migratable' feature to the features provided by the sysfs /sys/devices/vfio_ap/matrix/feature attribute to indicate that migration of vfio devices is supported. Signed-off-by: Anthony Krowiak --- drivers/s390/crypto/vfio_ap_drv.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/s390/crypto/vfio_ap_drv.c b/drivers/s390/crypto/vfio_ap_drv.c index 8e69ed286bb9..4e973736522b 100644 --- a/drivers/s390/crypto/vfio_ap_drv.c +++ b/drivers/s390/crypto/vfio_ap_drv.c @@ -26,9 +26,11 @@ MODULE_LICENSE("GPL v2"); struct ap_matrix_dev *matrix_dev; debug_info_t *vfio_ap_dbf_info; +#define FEATURES "guest_matrix hotplug ap_config migratable" + static ssize_t features_show(struct device *dev, struct device_attribute *attr, char *buf) { - return sysfs_emit(buf, "guest_matrix hotplug ap_config\n"); + return sysfs_emit(buf, "%s\n", FEATURES); } static DEVICE_ATTR_RO(features); -- 2.53.0