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Tue, 12 May 2026 17:52:51 +0000 (GMT) Received: from p-imbrenda.aag-de.ibm.com (unknown [9.52.223.175]) by smtpav06.fra02v.mail.ibm.com (Postfix) with ESMTP; Tue, 12 May 2026 17:52:51 +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 0/5] KVM: s390: some vSIE and UCONTROL fixes Date: Tue, 12 May 2026 19:52:46 +0200 Message-ID: <20260512175251.300882-1-imbrenda@linux.ibm.com> X-Mailer: git-send-email 2.54.0 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-Authority-Analysis: v=2.4 cv=cPHQdFeN c=1 sm=1 tr=0 ts=6a0368fb cx=c_pps a=3Bg1Hr4SwmMryq2xdFQyZA==:117 a=3Bg1Hr4SwmMryq2xdFQyZA==:17 a=NGcC8JguVDcA:10 a=VkNPw1HP01LnGYTKEx00:22 a=RnoormkPH1_aCDwRdu11:22 a=iQ6ETzBq9ecOQQE5vZCe:22 a=PbAycVehSIM_YFug2WUA:9 X-Proofpoint-ORIG-GUID: ToR4E8mBIPtqCOwoJVjuUdABQ8GNdy00 X-Proofpoint-GUID: ToR4E8mBIPtqCOwoJVjuUdABQ8GNdy00 X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwNTEyMDE4MyBTYWx0ZWRfX9hztSERY10Gp ded9txLHh14DpMN95ZDhwIHWVoDeBfPDMqLfpDtpRiQc430co4+761IA5kyhlKgLG0nId68RNH5 5iknphkE5tltWVsR/CbUd8gEM47e6xmvXKQNjyumQGtsdOgWVqz0r7mKISpTpWSvldMHdZE+C4H F51+Oo3LopJ4SiAE5n2YSa9nb0dUW2SjiwQnTDag9FZS1f3gcOnru/wVCxy+Uz/Acl7gTaRGv5g ufvfgQ51FpA6z3/erCvEiJg4AriWqaNMzelByTI2Erx7/lIHFyz7ys6DEki5zKm5LjaCTwtsVgy RtLSeg2QIzwxzmHItLx9iK0rhS2MHhXFSecHKvi+VzPDMMXy+vkCcCEyDp0OngDtgc2a6jYlzbs xMmCtqFMX0bz+2Jve6wUAoScd/i6HnxFkn+wTKIZPKund6vTRJnY9J255gHzCZ6vjQH0rR5+xBY 9ueAb4MsBBtrZJm2MCA== X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1143,Hydra:6.1.51,FMLib:17.12.100.49 definitions=2026-05-11_05,2026-05-08_02,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 priorityscore=1501 bulkscore=0 phishscore=0 clxscore=1015 spamscore=0 impostorscore=0 lowpriorityscore=0 adultscore=0 suspectscore=0 malwarescore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2605050000 definitions=main-2605120183 Fix some memory issues and some hangs in vSIE. This is still a fallout from the gmap rewrite. v1->v2: * Fix potential leak of struct kvm_s390_mmu_cache in gmap_set_limit() * Refactor and improve the checks to determine whether an unshadowing is needed * Set and propagate vsie_gmem properly * Properly mask the address passed to gmap_insert_rmap() to prevent creating multiple redundant rmaps when shadowing * Clear the pgste.zero flag when needed, to prevent pages from getting accidentally discarded Claudio Imbrenda (5): KVM: s390: vsie: Fix memory leak when unshadowing KVM: s390: Fix leaking kvm_s390_mmu_cache in case of errors KVM: s390: vsie: Fix unshadowing logic KVM: s390: vsie: Fix redundant rmap entries KVM: s390: Properly reset zero bit in PGSTE arch/s390/kvm/dat.c | 1 + arch/s390/kvm/dat.h | 3 ++- arch/s390/kvm/gaccess.c | 1 + arch/s390/kvm/gmap.c | 18 +++++++++++------- arch/s390/kvm/gmap.h | 23 ++++++++++++++++++++--- 5 files changed, 35 insertions(+), 11 deletions(-) -- 2.54.0