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Wed, 12 Aug 2026 13:03:05 +0000 (GMT) Received: from darkmoore (unknown [9.224.78.25]) by smtpav01.fra02v.mail.ibm.com (Postfix) with ESMTP; Wed, 12 Aug 2026 13:03:05 +0000 (GMT) Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset=UTF-8 Date: Wed, 12 Aug 2026 15:02:59 +0200 Message-Id: From: "Christoph Schlameuss" Cc: , , , , , , , , To: "Claudio Imbrenda" , Subject: Re: [PATCH v2 7/9] KVM: s390: Fix kvm_s390_clear_pv_state() X-Mailer: aerc 0.22.0 References: <20260812104436.109741-1-imbrenda@linux.ibm.com> <20260812104436.109741-8-imbrenda@linux.ibm.com> In-Reply-To: <20260812104436.109741-8-imbrenda@linux.ibm.com> X-TM-AS-GCONF: 00 X-Proofpoint-GUID: xqIliL-TWAHZlQXkX8w4c-YPG_YEbudw X-Authority-Analysis: v=2.4 cv=PbDPQChd c=1 sm=1 tr=0 ts=6a7c6f0e cx=c_pps a=5BHTudwdYE3Te8bg5FgnPg==:117 a=5BHTudwdYE3Te8bg5FgnPg==:17 a=IkcTkHD0fZMA:10 a=Sv0fKeRqtYgA:10 a=VkNPw1HP01LnGYTKEx00:22 a=RnoormkPH1_aCDwRdu11:22 a=iQ6ETzBq9ecOQQE5vZCe:22 a=VnNF1IyMAAAA:8 a=TetwIEPGvFocaHMLVJQA:9 a=QEXdDO2ut3YA:10 X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwODEyMDEwNiBTYWx0ZWRfX+Z9f+oX+m/rr ENItii17t0kMpz6ompg12e4zjRK+YhrPHrL2ISUzcF+ezuJq1cEx1t9Q/Ed92zKrwigsTCPeA0V tBCl0yUZWPjKpsb1Jv9X4m9bduM/d2g59TMIMTJO3U+ui1Papw2rY2GfrUEXuZnL/LZz550Vcda g5gTPQcefebssW65GvAXVz16w3DyOq6WOj+UScLSqv9e+BooXDrWAz784I64OPufIIP0RmrMzt5 7xWEQxJCFzBCVK4+eZlNUdkbEc8cWeHIE4rTSXwvZy73aJ1Q4+DUuCJ6+FR7NdFioPv80FGteUL EF6etJ2jjI6yaUiHFBmXrRJllVCdo3VAk9Hal06UmYCslr31uGIqKF/Pn8dg01tv7ahojXrtE6E 1dzyHga8AwVyGDcKpXlJlb6gtm7P4yNKdUozRa2wsvcUvq9HwRtq6YgNegCelFJ4go0tuanKoJN HGt2vVkL5QQnQipxUkg== X-Proofpoint-ORIG-GUID: xqIliL-TWAHZlQXkX8w4c-YPG_YEbudw X-Proofpoint-Spam-Info: AW1haW4tMjYwODEyMDEwNiBTYWx0ZWRfXxjbxMPUsfnP5 LT1cinHfAA9XHqFZKJ67e4/ryxLeirEXJTrMSBvb1s4CTkDv6X27nA3GXSFF4U4TTlA+Bb6FihO rj+FAul/pW/Zn/zQWB8wSsd3hLL/MHU= 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_03,2026-08-12_01,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 spamscore=0 bulkscore=0 impostorscore=0 malwarescore=0 adultscore=0 clxscore=1015 priorityscore=1501 suspectscore=0 phishscore=0 lowpriorityscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2606150000 definitions=main-2608120106 On Wed Aug 12, 2026 at 12:44 PM CEST, Claudio Imbrenda wrote: > 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 Acked-by: Christoph Schlameuss > --- > 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 =3D 0; > kvm->arch.pv.stor_base =3D 0; > kvm->arch.pv.stor_var =3D NULL; > + if (kvm->arch.pv.dumping) { > + kvm_s390_vcpu_unblock_all(kvm); > + kvm->arch.pv.dumping =3D false; > + } > } > =20 > static void kvm_s390_pv_dispose_cpu(struct kvm_vcpu *vcpu, bool free_sto= r_base)