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Mon, 13 Jul 2026 15:08:57 +0000 (GMT) Received: from p-imbrenda.ibmuc.com (unknown [9.87.153.197]) by smtpav02.fra02v.mail.ibm.com (Postfix) with ESMTP; Mon, 13 Jul 2026 15:08:57 +0000 (GMT) From: Claudio Imbrenda To: linux-kernel@vger.kernel.org Cc: kvm@vger.kernel.org, linux-s390@vger.kernel.org, borntraeger@de.ibm.com, frankja@linux.ibm.com, david@kernel.org, seiden@linux.ibm.com, nrb@linux.ibm.com, schlameuss@linux.ibm.com, gra@linux.ibm.com Subject: [PATCH v2 0/7] KVM: s390: Misc fixes Date: Mon, 13 Jul 2026 17:08:50 +0200 Message-ID: <20260713150857.269954-1-imbrenda@linux.ibm.com> X-Mailer: git-send-email 2.55.0 Precedence: bulk X-Mailing-List: linux-s390@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: AW1haW4tMjYwNzEzMDE1MyBTYWx0ZWRfX3BBCgVQcfDp4 PmmtorceJtIUCl/YdOlKDGEeuc4sdMVjKQKrDE8if9+gxWQKczBVA9xEhtG07JnSK6+fga+gjnf RMyQ4E4DYaUgw26+ve9kpmz5Z9VtWjw= X-Authority-Analysis: v=2.4 cv=Mp1iLWae c=1 sm=1 tr=0 ts=6a54ff93 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=NIC-QdJEwcXExtY_VYkA:9 X-Proofpoint-GUID: kqxqdcMrDRl_bXTIuJqfOO6GtHY1EKsN X-Proofpoint-ORIG-GUID: kqxqdcMrDRl_bXTIuJqfOO6GtHY1EKsN X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwNzEzMDE1MyBTYWx0ZWRfX7qhPE1ZO0EMP nPeSMkLBoKB0+xm/ofYB/59E4/p+Idk27r0ykFCqlilcn00Yuz8lx6o9nmvH/CE6hhXx6qAlZgv vLcz4LnU800X4nM9FqL84hXIR7p8upHqFUs0U7AEmwOI0vZnuz/ZRu8aSB1EXIC3GH4Jp/OgWCa foUo4RucRlwc/nK5mSABLQrI6/NPQwDWVENkrFcRZCkFbEui0SMPPaYDJi1pO6otE55UeMJEgJu n/nF5ZwW3d1BAGwoLPuim7r4WMfXdk2K98uAWRQvQRrltYz0JrDqP6preBIWYdYZBpK2bYOYpRr pRp+fwq7Wsrc8VZ3FBok2p3h0H3TTeXItv0Dq1AhSpqAFG07Eyi6anTyVxxlN1bXBDf7uB0zp+Q EVM88yllniHIX42LWureUMQCFC5t2aEdiGuKIfaD0XF6eWCG168L/z8cAHOonvoJvFiN1xnvjiT sArAqtYiHajVQjDNzNA== 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=2026-07-13_03,2026-07-10_01,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 adultscore=0 bulkscore=0 spamscore=0 malwarescore=0 lowpriorityscore=0 impostorscore=0 priorityscore=1501 suspectscore=0 clxscore=1015 phishscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2606150000 definitions=main-2607130153 Fix a bunch of small issues that came up during the previous round of fixes. They are mostly extremely unlikely races, but they should be fixed nonetheless. v1->v2 * Drop some patches that have been picked upstream in the meantime. * Drop patch 3, as it was trying to fix a bug that does not exist * Avoid the NULL gmap dereference by using a flag * Fix the return value of kvm_s390_[gp]et_skeys too * Use kvm->slots_arch_lock instead of kvm->slots_lock for CMMA and ESSA handling, to avoid potential deadlocks with the RCU. * Three new patches to fix other issues that came out while fixing the other issues Claudio Imbrenda (7): KVM: s390: Fix unlikely NULL gmap dereference KVM: s390: Return -EFAULT instead of PGM_ADDRESSING KVM: s390: Fix race in __do_essa() KVM: s390: cmma: Fix dirty tracking when removing memslot KVM: s390: ucontrol: Add missing locking around gmap_remove_child() KVM: s390: Fix overclearing ESCA in case of error KVM: s390: Return -EINTR if a signal was pending while faulting-in arch/s390/include/asm/kvm_host.h | 1 + arch/s390/kvm/dat.c | 7 +++++- arch/s390/kvm/faultin.c | 2 +- arch/s390/kvm/kvm-s390.c | 39 ++++++++++++++++++++++++-------- arch/s390/kvm/priv.c | 5 ++-- 5 files changed, 40 insertions(+), 14 deletions(-) -- 2.55.0