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Tue, 11 Aug 2026 15:56:43 +0000 (GMT) Received: from p-imbrenda.ehn-de.ibm.com (unknown [9.224.75.30]) by smtpav01.fra02v.mail.ibm.com (Postfix) with ESMTP; Tue, 11 Aug 2026 15:56:43 +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 v1 09/11] KVM: s390: Fix kvm_s390_clear_pv_state() Date: Tue, 11 Aug 2026 17:56:39 +0200 Message-ID: <20260811155641.219777-10-imbrenda@linux.ibm.com> X-Mailer: git-send-email 2.55.0 In-Reply-To: <20260811155641.219777-1-imbrenda@linux.ibm.com> References: <20260811155641.219777-1-imbrenda@linux.ibm.com> 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=XqfK/1F9 c=1 sm=1 tr=0 ts=6a7b4642 cx=c_pps a=aDMHemPKRhS1OARIsFnwRA==:117 a=aDMHemPKRhS1OARIsFnwRA==:17 a=Sv0fKeRqtYgA:10 a=VkNPw1HP01LnGYTKEx00:22 a=RnoormkPH1_aCDwRdu11:22 a=V8glGbnc2Ofi9Qvn3v5h:22 a=VnNF1IyMAAAA:8 a=72NMtMyVgwmTuVVq4s8A:9 X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwODExMDEzMCBTYWx0ZWRfX5TqgQAftr3Wa X7EmfXAwL7VVkjNbuuwy29RpE9gwCeUNaj36Bq6b8oW2l9weDMTx/VP2TzwLpnJ4QsCT8OMziEz /SjhvyfzkzZZ57cr1R/GdmZBhwUnwQG/jdUAVT30YcOekUUFvL3NC6a1kbud8mHXKnBl0Axacge w6wGyv+r6dnyi0ybt63IBgNnSAncvfIAkLhG7a357aZyL1FW6qhtc/30lNgd5Vee6x+Ntw2jZ/7 p6dBRix8TDfQ6gSrlUYS3fS6tA7Ia/az88SLY9eFBWZydinLOSVvQ5XpGc1fZYc03tGrrZ/1KK5 K5D6TCdBYcXNu1rLuif61St/rVviQF1HeBHyhdPYdlKlg/QdeC2sr8ybMuq8Mn8tQuEpR8AiTlf y6VVoUP81N4+vhtdl5TLvxgvDaasGcIIvXdAB3ToLpJQoJPxcNGjzMUN6vce8a9DuLvtfit4qh5 XxCQE/Wu59a4aBhIOLQ== X-Proofpoint-ORIG-GUID: 3TTgCdbLe_W3l-Gs4nFAzDlfHrXvO9f6 X-Proofpoint-GUID: 3TTgCdbLe_W3l-Gs4nFAzDlfHrXvO9f6 X-Proofpoint-Spam-Info: AW1haW4tMjYwODExMDEzMCBTYWx0ZWRfX6imvnuJxyxkV W4WUEFs5HC9S9FcqcdJ1bgZoz2WQOcCJCig8oAooFBXJgSAUQFMeSAVSzGDogW+J+S+0v5CaHVr xezsIVIoQ7w4kMcUjp+hW25AmzCk1QI= X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1176,Hydra:6.1.134,FMLib:17.12.100.49 definitions=2026-08-11_03,2026-08-10_03,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 lowpriorityscore=0 spamscore=0 adultscore=0 malwarescore=0 clxscore=1015 suspectscore=0 priorityscore=1501 impostorscore=0 phishscore=0 bulkscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2606150000 definitions=main-2608110130 kvm_s390_clear_pv_state() needs to also clear the dumping flag, to allow the protected VM to be started again (as non-protected, with all protected state safely destroyed) after a forced reboot while a protected dump was ongoing and not completed. Fixes: e40df9efd68a ("KVM: s390: pv: clear the state without memset") Signed-off-by: Claudio Imbrenda --- arch/s390/kvm/pv.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/arch/s390/kvm/pv.c b/arch/s390/kvm/pv.c index b02e0159d3cd..98a9a57f71b9 100644 --- a/arch/s390/kvm/pv.c +++ b/arch/s390/kvm/pv.c @@ -242,6 +242,10 @@ static void kvm_s390_clear_pv_state(struct kvm *kvm) kvm->arch.pv.guest_len = 0; kvm->arch.pv.stor_base = 0; kvm->arch.pv.stor_var = NULL; + if (kvm->arch.pv.dumping) { + kvm_s390_vcpu_unblock_all(kvm); + kvm->arch.pv.dumping = false; + } } static void kvm_s390_pv_dispose_cpu(struct kvm_vcpu *vcpu, bool free_stor_base) -- 2.55.0