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Mon, 20 Jul 2026 17:58:20 +0000 (GMT) Received: from IBM-D32RQW3.ibm.com (unknown [9.61.254.89]) by smtpav03.wdc07v.mail.ibm.com (Postfix) with ESMTP; Mon, 20 Jul 2026 17:58:20 +0000 (GMT) From: Farhan Ali To: linux-kernel@vger.kernel.org, linux-s390@vger.kernel.org, kvm@vger.kernel.org Cc: alifm@linux.ibm.com, mjrosato@linux.ibm.com, borntraeger@linux.ibm.com, farman@linux.ibm.com Subject: [PATCH v3 0/4] KVM s390x PCI fixes Date: Mon, 20 Jul 2026 10:58:15 -0700 Message-ID: <20260720175819.1723-1-alifm@linux.ibm.com> X-Mailer: git-send-email 2.43.0 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: kTnscvkXUvHQJDt7TPChrbPY-wAF5pYx X-Proofpoint-Spam-Info: AW1haW4tMjYwNzIwMDE5NCBTYWx0ZWRfX/29CStJJuwBq yTOQWnnl9kcWEwNkBh+qNmG8aE9Soc4wlcgCotADic9Dl80NlR63Le9FiXukS28Fy55DzjD2NHl 9KC6QRYMdpKiAOGL/9RiD0buLVmcpg8= X-Proofpoint-GUID: kTnscvkXUvHQJDt7TPChrbPY-wAF5pYx X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwNzIwMDE5NCBTYWx0ZWRfX/KHlQ6vYB8Ja 38YmeqFzr4jcBtqYkWMmumHHMGlQM0fHbOfk9N08/FyjeZYP9ADsu4+B3O6iiu8MWsJgYNGUNhW 0cNkPDeUmfFuX4Ymin9WWYFhtN9TJ/aMoyJcYlhcI4Me+BKuR8J1BemJqxNgTv3qXWVsPxvoSVI LJLKxThYBjwyxbG4asGQ2g1tE611q6kngBFq2KIwf2z7ymvSmw7zmuSzf0xRalr6XSLM23BYzHR kxeDenPY+FDan/dIXUuyzZb5yh30ZVL/lJF9wYmXxwED5I7nST8fvd3thNh2AajLgKefyIVVeDW AS6IpN4BxcavskxAdc+e6HZ+01OsbZQpMHpoefWBWVVkT8VbXq3RAf7fC5jdxmhaZAoabblpQc9 YVsyTJ15DhmlQfXOhBFrAchHKkc3NBxzq04Dp+RoFrg36a8n+1oPBT0qusBckyKSdVaWuSMI7jF bx/fsfTYpi59Kw+vo2A== X-Authority-Analysis: v=2.4 cv=K7AS2SWI c=1 sm=1 tr=0 ts=6a5e61bf cx=c_pps a=3Bg1Hr4SwmMryq2xdFQyZA==:117 a=3Bg1Hr4SwmMryq2xdFQyZA==:17 a=RAioF0-LDSMA:10 a=VkNPw1HP01LnGYTKEx00:22 a=RnoormkPH1_aCDwRdu11:22 a=uAbxVGIbfxUO_5tXvNgY:22 a=VwQbUJbxAAAA:8 a=VnNF1IyMAAAA:8 a=xMaImaq-nirgh_4BfFQA: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=2026-07-20_04,2026-07-20_03,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 lowpriorityscore=0 suspectscore=0 bulkscore=0 clxscore=1015 priorityscore=1501 spamscore=0 phishscore=0 malwarescore=0 adultscore=0 impostorscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2606150000 definitions=main-2607200194 Hi, This series attempts to fix some the pre-existing issues[1] found by sashiko. In v1 of the series, sashiko correctly pointed out some issues with the fix for AISB/AIBV spanning multiple pages and resource leaks that can happen over multiple ioctl calls for the same device. Fixing these will require some more rework and will be address later. [1] https://lore.kernel.org/all/20260624063447.85DF51F000E9@smtp.kernel.org/ Thanks Farhan ChangeLog --------- v2: https://lore.kernel.org/all/20260716175241.1039-1-alifm@linux.ibm.com/ v2 -> v3 - Remove overwriting guest FIB since we don't use it for re-issue (patch 4). v1: https://lore.kernel.org/all/20260713172600.1284-1-alifm@linux.ibm.com/ v1 -> v2 - Drop fix handling AISB/AIBV spanning multiple pages. - Fix memory accounting functions for the case when interrupt forwarding is enabled by one process but disabled by a different process (patch 1). Farhan Ali (4): KVM: s390: pci: Fix memory accounting for pinned/unpinned pages KVM: s390: pci: Fix missing error codes and memory unaccounting KVM: s390: pci: Fix NULL dereference on AIBV allocation failure KVM: s390: pci: Fix resource leak on IRQ registration failure arch/s390/kvm/pci.c | 82 ++++++++++++++++++++++++++++++++++----------- arch/s390/kvm/pci.h | 2 ++ 2 files changed, 65 insertions(+), 19 deletions(-) -- 2.43.0