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Tue, 16 Jun 2026 16:51:10 +0000 (GMT) Received: from p-imbrenda.ibmuc.com (unknown [9.111.66.4]) by smtpav01.fra02v.mail.ibm.com (Postfix) with ESMTP; Tue, 16 Jun 2026 16:51:10 +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, hca@linux.ibm.com, gerald.schaefer@linux.ibm.com, gor@linux.ibm.com, agordeev@linux.ibm.com, svens@linux.ibm.com Subject: [PATCH v3 0/4] KVM: s390: Fixes for gmap and _PAGE_UNUSED Date: Tue, 16 Jun 2026 18:51:06 +0200 Message-ID: <20260616165110.360921-1-imbrenda@linux.ibm.com> X-Mailer: git-send-email 2.54.0 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-TM-AS-GCONF: 00 X-Proofpoint-GUID: 7jx-Fym7XK3lR6tqnAvm6iuNzd4aUoV_ X-Authority-Analysis: v=2.4 cv=XdK5Co55 c=1 sm=1 tr=0 ts=6a317f04 cx=c_pps a=bLidbwmWQ0KltjZqbj+ezA==:117 a=bLidbwmWQ0KltjZqbj+ezA==:17 a=FelO9ux0wxsA:10 a=VkNPw1HP01LnGYTKEx00:22 a=RnoormkPH1_aCDwRdu11:22 a=Y2IxJ9c9Rs8Kov3niI8_:22 a=PZNbbSIUsKFdpJ9CItsA:9 X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwNjE2MDE3MyBTYWx0ZWRfX4Ecjkbe0kfZt LbMK3kMO6aS4OcbidwqU8o1ID+r78assIGsvaCJ8v7Nfw94dStLesG8eC3B6uj/QFx6uSeHMejn G3XrQNIYa+Tn5kZWTUIB1bQyyR1yX7qdiTD4VrNUYlwiKg/ViCKa384r8YhitqLTx07nJhvcbPG A+pWsrb6MYpceD91dhR7Qn+xRwib1uiA8z0kEfOrEd7HehAPaNK5G6jd4eR5vD61Y/TDg4BLo32 fwmxhJOUDUzsqne7/YNwZcJSqmMG6syDGz3hH2+TjwxZGQOrox237bBrc4o6tcbBvjEgEZpA3xR XPvuLX0EbgoLHcU5VGGPgNnP3UzkJj2mWWrK6ljjN44SX019cwiT5zpvPursga5FCWJFVhmIeU0 mgK0OA9oLnagAcZOtuqi5q5dZO1kthYWYIKGNsUbF/XWL91D/+V1q/ZIQl3X48Rx3wNCy/F10Cw CrZBL59Qd7aiyifom3A== X-Proofpoint-ORIG-GUID: 7jx-Fym7XK3lR6tqnAvm6iuNzd4aUoV_ X-Proofpoint-Spam-Info: AW1haW4tMjYwNjE2MDE3MyBTYWx0ZWRfX7uQHT9XvUhG0 ykjpWY4fLUt1X1+HRpCjF1rED2AMJ81U2cvWnZPy43EinqCfLPUjn+PFjCuYGHZ8V/No2fdFZtl kBNke/0Nmtv7GM4S85pMRyYG0IJGQus= X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1143,Hydra:6.1.125,FMLib:17.12.100.49 definitions=2026-06-16_05,2026-06-15_04,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 suspectscore=0 lowpriorityscore=0 clxscore=1015 bulkscore=0 malwarescore=0 spamscore=0 phishscore=0 priorityscore=1501 impostorscore=0 adultscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2606040000 definitions=main-2606160173 Fix handling of _PAGE_UNUSED pte bit. The bit was lingering around longer than it should have, causing issues. This is yet a different approach from the previous version. Also fix a few other small issues in gmap. v2->v3: * Fix _PAGE_UNUSED in yet a different way * Fix a potential overflow in dat_peek_cmma() * Some minor gmap fixes that are not actual bugs yet v1->v2: * Completely different approach, entirely new patch Claudio Imbrenda (4): s390/mm: Fix handling of _PAGE_UNUSED pte bit KVM: s390: Fix dat_peek_cmma() overflow KVM: s390: Do not set special large pages dirty KVM: s390: Fix code typo in gmap_protect_asce_top_level() arch/s390/include/asm/pgtable.h | 4 ++-- arch/s390/kvm/dat.c | 2 +- arch/s390/kvm/gmap.c | 4 ++-- arch/s390/mm/gmap_helpers.c | 3 ++- 4 files changed, 7 insertions(+), 6 deletions(-) -- 2.54.0