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AJvYcCVE0yjOIXz13OEg/e7BVrTaFi5Ru6Soao/hiT4WF7NjouLs3adx3lLLA3vpLgCzDlZo3gdthHgOP+g7btY=@vger.kernel.org X-Gm-Message-State: AOJu0Yx1RdlX+IBwdshfmbZl29EFqlcbQgy95NYXVcNePDjLjFz+SEYI IKfPzotMuMY9NhR5135JU+1LuXDpGLRqEZDJ3YzhjYFZFSkTyGQWBH+Gv1kcXF+vrDJPLp3RtWb m0kedlw== X-Google-Smtp-Source: AGHT+IHBEy8+OKJmY+A4zi/3hTeqSjfA/ttP2bWoyN5/kshTJAQ27HG4vGJt+llsgPQtOFs3CpzMzSvtcZQ= X-Received: from pjxx16.prod.google.com ([2002:a17:90b:58d0:b0:2ff:6132:8710]) (user=seanjc job=prod-delivery.src-stubby-dispatcher) by 2002:a17:90b:4e8d:b0:311:d258:3473 with SMTP id 98e67ed59e1d1-313af12a361mr7057487a91.13.1749682097123; Wed, 11 Jun 2025 15:48:17 -0700 (PDT) Reply-To: Sean Christopherson Date: Wed, 11 Jun 2025 15:45:50 -0700 In-Reply-To: <20250611224604.313496-2-seanjc@google.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 References: <20250611224604.313496-2-seanjc@google.com> X-Mailer: git-send-email 2.50.0.rc1.591.g9c95f17f64-goog Message-ID: <20250611224604.313496-49-seanjc@google.com> Subject: [PATCH v3 47/62] KVM: SVM: Process all IRTEs on affinity change even if one update fails From: Sean Christopherson To: Marc Zyngier , Oliver Upton , Sean Christopherson , Paolo Bonzini , Joerg Roedel , David Woodhouse , Lu Baolu Cc: linux-arm-kernel@lists.infradead.org, kvmarm@lists.linux.dev, kvm@vger.kernel.org, iommu@lists.linux.dev, linux-kernel@vger.kernel.org, Sairaj Kodilkar , Vasant Hegde , Maxim Levitsky , Joao Martins , Francesco Lavra , David Matlack Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" When updating IRTE GA fields, keep processing all other IRTEs if an update fails, as not updating later entries risks making a bad situation worse. Signed-off-by: Sean Christopherson --- arch/x86/kvm/svm/avic.c | 8 +++----- 1 file changed, 3 insertions(+), 5 deletions(-) diff --git a/arch/x86/kvm/svm/avic.c b/arch/x86/kvm/svm/avic.c index 6048cd90e731..24e07f075646 100644 --- a/arch/x86/kvm/svm/avic.c +++ b/arch/x86/kvm/svm/avic.c @@ -849,12 +849,10 @@ static inline int avic_update_iommu_vcpu_affinity(str= uct kvm_vcpu *vcpu, int cpu if (list_empty(&svm->ir_list)) return 0; =20 - list_for_each_entry(irqfd, &svm->ir_list, vcpu_list) { + list_for_each_entry(irqfd, &svm->ir_list, vcpu_list) ret =3D amd_iommu_update_ga(cpu, irqfd->irq_bypass_data); - if (ret) - return ret; - } - return 0; + + return ret; } =20 void avic_vcpu_load(struct kvm_vcpu *vcpu, int cpu) --=20 2.50.0.rc1.591.g9c95f17f64-goog