From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mx0b-001b2d01.pphosted.com (mx0b-001b2d01.pphosted.com [148.163.158.5]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 74BAA374E79; Thu, 23 Jul 2026 18:34:46 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=148.163.158.5 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1784831689; cv=none; b=MFNBStnoyI3cZL8kOneb3fEP4Txz/PFALr2zYhXBBov+1fOxDJaejIeYZnHYW88cY1N3a6nYrE0hIA/ZzpVjLPKpQnrDoAzvSTlHInki/H0k2vnQB+Ock/1ndygjEMDYHRuZDiBZe8Zklk+aErthOzQPMKxnTG/JDp7aV2MxElo= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1784831689; c=relaxed/simple; bh=KAHVEbIed6+6/ZHWaDBEWkpNRGzOUex2H80j/GwPGdc=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=T1nlZ9uyKjT7B+JXSD2duPFjXTYYLT1tLhKngp/e/jivoQzu3MhjCmPpjLtEpuW+U8kRW38x8zc65HRubt50QtgQUVAP8Lqsz3wsZO3iFF57bpaIhUTQKyM2SQJi81wvByg/By8RRK2h6e8wffJ7IFwyogFIouvPPYvS0ygyn+g= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.ibm.com; spf=pass smtp.mailfrom=linux.ibm.com; dkim=pass (2048-bit key) header.d=ibm.com header.i=@ibm.com header.b=aCT+yZX5; arc=none smtp.client-ip=148.163.158.5 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.ibm.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=linux.ibm.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=ibm.com header.i=@ibm.com header.b="aCT+yZX5" Received: from pps.filterd (m0353725.ppops.net [127.0.0.1]) by mx0a-001b2d01.pphosted.com (8.18.1.11/8.18.1.11) with ESMTP id 66NHfsWw3578916; Thu, 23 Jul 2026 18:34:43 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ibm.com; h=cc :content-transfer-encoding:date:from:message-id:mime-version :subject:to; s=pp1; bh=e6NuS8wD/32maTFF3CXfSnvjq9GzTwgdoCBrKx+sN Vg=; b=aCT+yZX5WsxlRAiiEf2HOQrnKPYZYCY+0gJMXLkLfmUP3dEuVXlvRte2i v6YtaD7kFRT04VzD6VUlE3tyOnLU9OTueXuUVjQi5oWir5hs0LxC5hIKWRbqA2ac 5scNjY28iV0vdyJXNkzW/qua5RVYq2yNEJN19lwduYOiYA27Z7emTiWnzlBSxjnd PO+xQ7bsrI5cahCx+zPKGniPM0LnhApVpgEGQ/SciDLQiRofswP/Ty20FCg7AcuG N7VQc2fEQzUKWCZSAS4mgm1aAyS9hAFmuSfi4lMRmJ1oyCHi0sxRVTu83lkvs+Lj gUPSs36nYzLn+zrXu2/rPH5t3Uk/g== Received: from ppma22.wdc07v.mail.ibm.com (5c.69.3da9.ip4.static.sl-reverse.com [169.61.105.92]) by mx0a-001b2d01.pphosted.com (PPS) with ESMTPS id 4fg78gge2u-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 23 Jul 2026 18:34:43 +0000 (GMT) Received: from pps.filterd (ppma22.wdc07v.mail.ibm.com [127.0.0.1]) by ppma22.wdc07v.mail.ibm.com (8.18.1.7/8.18.1.7) with ESMTP id 66NIYdlb005311; Thu, 23 Jul 2026 18:34:42 GMT Received: from smtprelay03.dal12v.mail.ibm.com ([172.16.1.5]) by ppma22.wdc07v.mail.ibm.com (PPS) with ESMTPS id 4fgm6wdmfw-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 23 Jul 2026 18:34:42 +0000 (GMT) Received: from smtpav04.wdc07v.mail.ibm.com (smtpav04.wdc07v.mail.ibm.com [10.39.53.231]) by smtprelay03.dal12v.mail.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id 66NIYfMs18481720 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Thu, 23 Jul 2026 18:34:41 GMT Received: from smtpav04.wdc07v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 5A7F558054; Thu, 23 Jul 2026 18:34:41 +0000 (GMT) Received: from smtpav04.wdc07v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 98B4F58050; Thu, 23 Jul 2026 18:34:40 +0000 (GMT) Received: from IBM-D32RQW3.ibm.com (unknown [9.61.254.118]) by smtpav04.wdc07v.mail.ibm.com (Postfix) with ESMTP; Thu, 23 Jul 2026 18:34:40 +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 Subject: [PATCH v5 0/6] KVM s390x PCI fixes Date: Thu, 23 Jul 2026 11:34:34 -0700 Message-ID: <20260723183440.3271-1-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-Spam-Details-Enc: AW1haW4tMjYwNzIzMDE3OCBTYWx0ZWRfX8dfE+qnCiqjq ZPp1iccEODDfiDotnkAmOiWKzYmW7HUEzCvD2H6VEnw6BIwaaUV+t97z1w2Sn2ij3h//ZTsIirY hwkgT6C3/rZcVkPsaBzfvIts2GstXA+lWj5MEZ+O3b4V8vXulZOBOWdBTr3RlWDNwU+8Nxvp6cI 7LD+CFtNrefCV1EmH/Mzukp/2Gfg96sQcE/27xgJseSmIQyla1vcKBWe50lD+Wk7nQZ9Gzhx2YQ bW8mQd83y9LBXBtoGlqq3oL/J0PfMR1H29jeWERWieBX4ClUzyRWyymVOfs3ZlxJK9y7RHJD144 4u0b/8QDF6NzaVup14AloTti7GxW4ytTKVnK0+gZJh6M/IgEyVmDPg0oYit/5WsoADzJ8SY5mE0 EupIkSCFaIhwAmxX+mdgjcBW/HSPsd3yVLdenjqTqj07sInChWadYpqVlGFfUiQGgVk/LUMhe64 s10dFIlI8pfozDCdznQ== X-Proofpoint-GUID: OADudSl0fcanT22NB9cNOY881KsAyUxI X-Authority-Analysis: v=2.4 cv=MelcfZ/f c=1 sm=1 tr=0 ts=6a625ec3 cx=c_pps a=5BHTudwdYE3Te8bg5FgnPg==:117 a=5BHTudwdYE3Te8bg5FgnPg==:17 a=RAioF0-LDSMA:10 a=VkNPw1HP01LnGYTKEx00:22 a=RnoormkPH1_aCDwRdu11:22 a=V8glGbnc2Ofi9Qvn3v5h:22 a=VwQbUJbxAAAA:8 a=VnNF1IyMAAAA:8 a=36iXiGq6ocEqfiKSoJkA:9 X-Proofpoint-Spam-Info: AW1haW4tMjYwNzIzMDE3OCBTYWx0ZWRfX8Hs1APAiuE8v fukur6G9of68+USpffFExN0EGO51ASzAA3U8rwo6yB97/+UJpIB5any4f8bG6vaWiXfADwvCHFB 4zs+nKkUESQndldwaG6fUSADoF6yO1U= X-Proofpoint-ORIG-GUID: OADudSl0fcanT22NB9cNOY881KsAyUxI 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=2026-07-23_05,2026-07-22_02,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 impostorscore=0 lowpriorityscore=0 priorityscore=1501 bulkscore=0 spamscore=0 clxscore=1015 malwarescore=0 phishscore=0 adultscore=0 suspectscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2606150000 definitions=main-2607230178 Hi, This series attempts to fix some the pre-existing issues[1] found by sashiko. [1] https://lore.kernel.org/all/20260624063447.85DF51F000E9@smtp.kernel.org/ Thanks Farhan ChangeLog --------- v4: https://lore.kernel.org/all/20260722170621.1686-1-alifm@linux.ibm.com/ v4 -> v5 - Fix off by one error (patch 6). - Add check for current->mm in account_mem() (patch 2). - Fix commit message as suggested by Matt (patch 3, 4, 5). v3: https://lore.kernel.org/all/20260720175819.1723-1-alifm@linux.ibm.com/ v3 -> v4 - Add validation checks for AISB/AIBV spanning more than a page. - Reject multiple ioctl call for the same device, if adapter interrupt forwarding is already enabled for the device. - Rebase on 7.2-rc4. 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 (6): KVM: s390: pci: Reject adapter interrupt forwarding if already enabled 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 KVM: s390: pci: Validate AIBV and AISB before pinning guest pages arch/s390/kvm/pci.c | 108 +++++++++++++++++++++++++++++++++++--------- arch/s390/kvm/pci.h | 2 + 2 files changed, 89 insertions(+), 21 deletions(-) -- 2.43.0