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Tue, 28 Jul 2026 03:30:24 +0000 (GMT) Received: from tuxmaker.boeblingen.de.ibm.com (unknown [9.87.85.9]) by smtpav06.fra02v.mail.ibm.com (Postfix) with SMTP; Tue, 28 Jul 2026 03:30:24 +0000 (GMT) Received: by tuxmaker.boeblingen.de.ibm.com (Postfix, from userid 4958) id 0FEB816162C; Tue, 28 Jul 2026 05:30:24 +0200 (CEST) From: Eric Farman To: linux-s390@vger.kernel.org, kvm@vger.kernel.org, linux-kernel@vger.kernel.org Cc: Matthew Rosato , Halil Pasic , Christian Borntraeger , Eric Farman Subject: [PATCH v9 00/10] s390/vfio_ccw fixes Date: Tue, 28 Jul 2026 05:30:12 +0200 Message-ID: <20260728033022.2658232-1-farman@linux.ibm.com> X-Mailer: git-send-email 2.53.0 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-TM-AS-GCONF: 00 X-Proofpoint-GUID: Fop1ORBclNCt4Nt0KnOpCZySF5QUePsJ X-Proofpoint-ORIG-GUID: Fop1ORBclNCt4Nt0KnOpCZySF5QUePsJ X-Proofpoint-Spam-Info: AW1haW4tMjYwNzI4MDAyOCBTYWx0ZWRfX7HCxmCNfO5fP 6WDyZjj1ayOv+gKGTjGb+hF/ZQH6725fA5U8yBfivcbaJRnyA5Z9q1HhcoFPI5qZzGTy0FjnViP cUdpo4d0HMUFmpym1PVvCvhYlPR3g8Q= X-Authority-Analysis: v=2.4 cv=dYuwG3Xe c=1 sm=1 tr=0 ts=6a682255 cx=c_pps a=3Bg1Hr4SwmMryq2xdFQyZA==:117 a=3Bg1Hr4SwmMryq2xdFQyZA==:17 a=RAioF0-LDSMA:10 a=VkNPw1HP01LnGYTKEx00:22 a=RnoormkPH1_aCDwRdu11:22 a=U7nrCbtTmkRpXpFmAIza:22 a=VwQbUJbxAAAA:8 a=VnNF1IyMAAAA:8 a=vR5ihhkRQY44bnTQV1kA:9 X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwNzI4MDAyOCBTYWx0ZWRfX9TS73NZW7hDr H+Wotfgq0/rzEyCGw0etns47SZswM1dq7hj5eZ/SRZn/jjNhqykfcbf5EciUasTdmAlpuw2PCCV fJjbxUrhMwXKCygyuMBdeXqbA1Grwrd98a8Ug9pyZpGwpBYmzx+t2/yrutRKJtL94fJ8w+6sM0J d50UY1DCjwTkScZ6H0kDFJF4k9jwtM2XbvpmfMRDx2gbQRDRYPyIT7nIQJHqcsymtakqlTrkhyp r3I5H4LcBszZnQwQjkz/Tl1Z1vxvEGF5hBqiaKVtQXnGCw//UyfAWET8Pl8t4JIyh3fOvzwrWWM OONp+2lqQPvWNTzfEam3KmYnWXnYrS0QslHABchgIZbmFmehI74LiYWd9sz4I16Ije0QGNNgaOu srGGFazqAsVr6sebThdJidcyxRiPg3XUX83ku9ClmllsczYGJFMlo9XI5xb2HyRkZKpSGKX/oBY rCfKGhr1EkHUaKNglWw== 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_07,2026-07-27_01,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 priorityscore=1501 impostorscore=0 clxscore=1015 phishscore=0 malwarescore=0 spamscore=0 lowpriorityscore=0 bulkscore=0 suspectscore=0 adultscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2606150000 definitions=main-2607280028 This series addresses some pre-existing issues found in the s390 vfio_ccw (DASD passthrough) driver. Patches 1-6 are identical to v6/v7/v8 Patches 7-10 have minor changes compared to v7/v8 v1: https://lore.kernel.org/r/20260714232208.1683788-1-farman@linux.ibm.c= om/ v2: https://lore.kernel.org/r/20260720201931.976660-1-farman@linux.ibm.co= m/ v3: https://lore.kernel.org/r/20260723174751.1180334-1-farman@linux.ibm.c= om/ v4: https://lore.kernel.org/r/20260725152705.3958100-1-farman@linux.ibm.c= om/ v5: https://lore.kernel.org/r/20260726040129.2946151-1-farman@linux.ibm.c= om/ v6: https://lore.kernel.org/r/20260726172153.1818056-1-farman@linux.ibm.c= om/ v7: https://lore.kernel.org/r/20260727192230.2715207-1-farman@linux.ibm.c= om/ v8: https://lore.kernel.org/r/20260728013509.1551753-1-farman@linux.ibm.c= om/ v8->v9: - [MR] Added r-b (thank you!) - [MR] Commit/comment message improvements - [MR/sashiko] Re-add workqueue cleanup to vfio_ccw_mdev_release_dev, in= the form of a flush_work() call Eric Farman (10): s390/vfio_ccw: free all memory if cp_init() fails s390/vfio_ccw: limit the number of channel program segments s390/vfio_ccw: fix out of bounds check on CCW array s390/vfio_ccw: ensure first IDAW remains constant s390/vfio_ccw: calculate idal length based on idaw type s390/vfio_ccw: ensure index for read/write regions are within range s390/vfio_ccw: cancel existing workqueues s390/vfio_ccw: move cp cleanup out of not operational s390/vfio_ccw: selectively expand io_mutex s390/vfio_ccw: implement a crw lock drivers/s390/cio/vfio_ccw_async.c | 16 +++++++ drivers/s390/cio/vfio_ccw_chp.c | 31 ++++++++++-- drivers/s390/cio/vfio_ccw_cp.c | 74 +++++++++++++++++++++-------- drivers/s390/cio/vfio_ccw_cp.h | 10 ++++ drivers/s390/cio/vfio_ccw_drv.c | 21 +++++++- drivers/s390/cio/vfio_ccw_fsm.c | 8 +++- drivers/s390/cio/vfio_ccw_ops.c | 39 +++++++++++++-- drivers/s390/cio/vfio_ccw_private.h | 10 +++- 8 files changed, 176 insertions(+), 33 deletions(-) --=20 2.53.0