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Mon, 31 Aug 2026 14:55:44 +0000 (GMT) Received: from tuxmaker.boeblingen.de.ibm.com (unknown [9.87.85.9]) by smtpav04.fra02v.mail.ibm.com (Postfix) with ESMTP; Mon, 31 Aug 2026 14:55:44 +0000 (GMT) From: Steffen Eiden To: kvm@vger.kernel.org, kvmarm@lists.linux.dev, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-s390@vger.kernel.org Cc: Alexander Gordeev , Andreas Grapentin , Arnd Bergmann , Catalin Marinas , Christian Borntraeger , Claudio Imbrenda , David Hildenbrand , Friedrich Welter , Fuad Tabba , Gautam Gala , Hariharan Mari , Heiko Carstens , Hendrik Brueckner , Ilya Leoshkevich , Janosch Frank , Joey Gouly , Marc Zyngier , Nico Boehr , Nina Schoetterl-Glausch , Oliver Upton , Paolo Bonzini , Suzuki K Poulose , Sven Schnelle , Ulrich Weigand , Vasily Gorbik , Will Deacon , Zenghui Yu Subject: [PATCH v2 15/20] KVM: s390: arm64: Use QAAF init save area Date: Mon, 31 Aug 2026 16:55:30 +0200 Message-ID: <20260831145536.913567-16-seiden@linux.ibm.com> X-Mailer: git-send-email 2.53.0 In-Reply-To: <20260831145536.913567-1-seiden@linux.ibm.com> References: <20260831145536.913567-1-seiden@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-Proofpoint-Reinject: loops=2 maxloops=12 X-Proofpoint-GUID: NBzZ3vNIKerg2wA0OsIPkgrhomuar2rM X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwODMxMDEyNSBTYWx0ZWRfX9nekivU1Lxuu BbHWp/4tdO+b8ZawBA6/xXovRBsZWLlI493Lp4n41Pt/cUAy1uhctoA7LuQXD/3fpj40xmkj5YM ZOEAbGfhMr7siDEwIO6JeSlZ2noOLLADGGtpLuBZAFaGpuu+io2BknrQEOkwMBkXS1BVuK+Y9Rv /SexI8pLtKpPaJm6OXV69lrAk0iT0pjeph8B1h71SYqzRruU7tD6pbyj1tZQenuEBeDNjFpYKQ7 KVavIP62XWxiACsQRb9WZTSSAu1IqtCwo9rjKmoRGZ15l5g3gNQpyXv3hXdOUzhd9USHq3x+iYD J/rVltz1cV3u1xzxtlKA+yhMc1KC77l4+od5JSBIWPoYU049eeMNVtuZOAbNFhqZ/AaLvJeE+7t ZJ4hT+EDO64fFE2LwvmmcG1hgoaRhHatuNuuvKg24+4rVh6Zu8hNFCJs5wrk7cvdvtk6Fbn5wMY wtczudlMVVpbqmOesIA== X-Authority-Analysis: v=2.4 cv=Osl/DS/t c=1 sm=1 tr=0 ts=6a9595f9 cx=c_pps a=aDMHemPKRhS1OARIsFnwRA==:117 a=aDMHemPKRhS1OARIsFnwRA==:17 a=Sv0fKeRqtYgA:10 a=VkNPw1HP01LnGYTKEx00:22 a=RnoormkPH1_aCDwRdu11:22 a=Y2IxJ9c9Rs8Kov3niI8_:22 a=VnNF1IyMAAAA:8 a=4v_MITeQBDqVJkbHs2kA:9 X-Proofpoint-Spam-Info: AW1haW4tMjYwODMxMDEyNSBTYWx0ZWRfX6500rR5VYJKJ iVcLUSoRYPoiu4PxA+WRrYJzq9/KOnvJ84VfSq3+/i5THd+EZbE+Bq0+1jjjNNf/3la8n6RGfVx p9qRg7Yfjyl55JaS/WP/oMVRQz/UVGI= X-Proofpoint-ORIG-GUID: PRi0ymHEIIdEKaZWe21iewkiw92C0-he 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=2026-08-31_05,2026-08-27_02,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 spamscore=0 malwarescore=0 suspectscore=0 bulkscore=0 lowpriorityscore=0 adultscore=0 impostorscore=0 phishscore=0 clxscore=1015 priorityscore=1501 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2606150000 definitions=main-2608310125 Use the (cached) result of QAAF fc2 (Generate Initial System-Registers-Save Area) to initialize the Save Area. Signed-off-by: Steffen Eiden --- arch/s390/kvm/arm64/arm.c | 1 - arch/s390/kvm/arm64/reset.c | 5 +++++ 2 files changed, 5 insertions(+), 1 deletion(-) diff --git a/arch/s390/kvm/arm64/arm.c b/arch/s390/kvm/arm64/arm.c index 3a0bba6e0a06..ab6e7d135435 100644 --- a/arch/s390/kvm/arm64/arm.c +++ b/arch/s390/kvm/arm64/arm.c @@ -360,7 +360,6 @@ static int kvm_arch_vcpu_ioctl_vcpu_init(struct kvm_vcpu *vcpu, int ret; sae_block->save_area = virt_to_phys(save_area); - save_area->sdo = virt_to_phys(sae_block); ret = kvm_vcpu_set_target(vcpu, init); if (ret) diff --git a/arch/s390/kvm/arm64/reset.c b/arch/s390/kvm/arm64/reset.c index 74622ba6f081..bc7bcee75779 100644 --- a/arch/s390/kvm/arm64/reset.c +++ b/arch/s390/kvm/arm64/reset.c @@ -10,6 +10,8 @@ #include +#include "qaaf.h" + bool kvm_arm_vcpu_is_finalized(struct kvm_vcpu *vcpu) { return true; @@ -79,6 +81,9 @@ void kvm_reset_vcpu(struct kvm_vcpu *vcpu) if (loaded) vcpu_put(vcpu); + kvm_vcpu_init_save_area(&vcpu->arch.save_area); + vcpu->arch.save_area.sdo = virt_to_phys(&vcpu->arch.sae_block); + kvm_reset_vcpu_core(vcpu); kvm_reset_sys_regs(vcpu); -- 2.53.0