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Wed, 12 Aug 2026 10:44:38 +0000 (GMT) Received: from p-imbrenda.ehn-de.ibm.com (unknown [9.224.75.30]) by smtpav04.fra02v.mail.ibm.com (Postfix) with ESMTP; Wed, 12 Aug 2026 10:44:38 +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 7/9] KVM: s390: Fix kvm_s390_clear_pv_state() Date: Wed, 12 Aug 2026 12:44:34 +0200 Message-ID: <20260812104436.109741-8-imbrenda@linux.ibm.com> X-Mailer: git-send-email 2.55.0 In-Reply-To: <20260812104436.109741-1-imbrenda@linux.ibm.com> References: <20260812104436.109741-1-imbrenda@linux.ibm.com> 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-Authority-Analysis: v=2.4 cv=RsP16imK c=1 sm=1 tr=0 ts=6a7c4e9b cx=c_pps a=3Bg1Hr4SwmMryq2xdFQyZA==:117 a=3Bg1Hr4SwmMryq2xdFQyZA==:17 a=Sv0fKeRqtYgA:10 a=VkNPw1HP01LnGYTKEx00:22 a=RnoormkPH1_aCDwRdu11:22 a=RzCfie-kr_QcCd8fBx8p:22 a=VnNF1IyMAAAA:8 a=aapLlF3kuFkAvhSc48UA:9 X-Proofpoint-GUID: 3NCI1x_aID3q9IptVdl2AUSiyz78WQnj X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwODEyMDA4NCBTYWx0ZWRfX+5pj0zb0RCDN gtabMvKckJIF5mNs0T1R9+FvWSlQbKBCDWnD23mIKqS5pzmb6YgeO27onjpbXWEV4S9nuRbfghP rmx77H1Ys+WYdnoFfue7+iBcsNW4cEVr/S41UAJI4Q3u2zkc89xrMQrkhJ1xP3gTHsI9VhP+dff rNJk70F8hM3a7OY431SyJjeH4OyBgxem+2DI8tqTiwfXQPm/CexubJ2Prct/zCLyNWCnmnBeUmO uNl6nxQtVP3qDUJ3L8K9/vIcPC4XJotoyN1nxoc43Oaar657hVjTppHDNj5UeRL3BSW4pG87mN5 KlXIlLtdSGcK+6TkbC1V7gA2HALa01ubtqKD1eHY2tVISINY7UFvvPxtNU7lQQqja8kYaaRyeXn cFUbUeXB4/C12NKILstgP3P5q3C3MyIpcqte1g2zSMbDoIHz/bLqCTGr0GcEfxiGHZIrWxUmmaB a9Rb0sK1yfaAPcRJBKw== X-Proofpoint-ORIG-GUID: 3NCI1x_aID3q9IptVdl2AUSiyz78WQnj X-Proofpoint-Spam-Info: AW1haW4tMjYwODEyMDA4NCBTYWx0ZWRfXxmUBrwR395K9 Gv/Y1x8AEhqeYXzFvjgzZHdr77KuzS+F0Td7YzYMrKjDwL+2ki+BEK2+Uag/LBNiynkMAdlzVi1 5qtbhC8YYQR4WbVZ1BEUo0LKBymGrgk= 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=2026-08-12_03,2026-08-10_03,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 spamscore=0 impostorscore=0 suspectscore=0 clxscore=1015 malwarescore=0 phishscore=0 adultscore=0 lowpriorityscore=0 priorityscore=1501 bulkscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2606150000 definitions=main-2608120084 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 Reviewed-by: Christian Borntraeger --- 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