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Mon, 27 Jul 2026 17:33:06 +0000 (GMT) Received: from li-4c4c4544-004d-4810-8043-b7c04f423534.ibm.com.com (unknown [9.61.182.213]) by smtpav02.wdc07v.mail.ibm.com (Postfix) with ESMTP; Mon, 27 Jul 2026 17:33:06 +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 v6 14/15] s390/vfio-ap: Add 'migratable' feature to sysfs 'features' attribute Date: Mon, 27 Jul 2026 13:32:38 -0400 Message-ID: <20260727173239.2420754-15-akrowiak@linux.ibm.com> X-Mailer: git-send-email 2.53.0 In-Reply-To: <20260727173239.2420754-1-akrowiak@linux.ibm.com> References: <20260727173239.2420754-1-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-ORIG-GUID: Q0ggNsabw9oSTnRe4wHJd8L00Ddf7Fpf X-Proofpoint-Spam-Info: AW1haW4tMjYwNzI3MDE2MCBTYWx0ZWRfX2IkvThpAbR/y EEe+J+qBaey7xxZp/G9MBOC8xksIG56GdM/wr7uzrz0IuoH8QOdjbnk7Tgo6Oa4E2XZj1nPi4QQ rUjFtd7Sc2V8/sLiMlLSG9hj1hA8pcQ= X-Authority-Analysis: v=2.4 cv=E/z9Y6dl c=1 sm=1 tr=0 ts=6a679656 cx=c_pps a=bLidbwmWQ0KltjZqbj+ezA==:117 a=bLidbwmWQ0KltjZqbj+ezA==:17 a=RAioF0-LDSMA:10 a=VkNPw1HP01LnGYTKEx00:22 a=RnoormkPH1_aCDwRdu11:22 a=RzCfie-kr_QcCd8fBx8p:22 a=VnNF1IyMAAAA:8 a=CB_8iKbeFirw2v3l3xgA:9 X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwNzI3MDE2MCBTYWx0ZWRfX57lILRSBvja3 Jg1tjRmjS7rJTOQTEYlQV4kIVPPJ3hcLpyrzI249fCgGisdf6in7oJcOBfdh4xMvmkRjisUAglq 1azDOiBF84bOihGUnYsNULiML0ZO9VN9rT2JnK5JDeRCFHK0JxHakD5qfYoVY2xb67dn2lzfXRl juXOtmottX/flL480ZS2A+jsasaAhaqTsoGaJYQY7A8eEifEJLP8GTULsoiQjL54XzGv/1IIrcA TCM/ieBVnrGMR6XUov0RRRpAmxm++SIWKZ8muqwFMxl+eFrUYBfs1vG/FbVcWRRamZJgdWSRTzL JSfQVQ70ZgZ6OgFtAdY1MLswZUEI3XL/ilpkbKvaYyz8rl6CcUnJn4BXlccO3GgzerEzwM0vv5W hp18FxVuzcmp/KIbMfjHm2VjWEy6BYeZ4xfRhXtsSKx5pKuP2D0TpLejYiCRE0hOZiZ3JIDjr3s 0eZlSay6Leckcb+wYNA== X-Proofpoint-GUID: Q0ggNsabw9oSTnRe4wHJd8L00Ddf7Fpf 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=2026-07-27_04,2026-07-24_02,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 adultscore=0 priorityscore=1501 spamscore=0 clxscore=1015 phishscore=0 lowpriorityscore=0 bulkscore=0 malwarescore=0 impostorscore=0 suspectscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2606150000 definitions=main-2607270160 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