From nobody Wed Dec 17 06:03:33 2025 Received: from mail-pl1-f201.google.com (mail-pl1-f201.google.com [209.85.214.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id EBCA323F420 for ; Fri, 4 Apr 2025 19:41:15 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.214.201 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1743795677; cv=none; b=Fq4GGRkizcJGJ+6UFE2GWdYHIDFnizOOsp2lqdk4fl3tuZ0Zfv1Rm5JFL5I5otBVIkK/Q0PayG5HFahA34JJSBos1S0uPHVp/pCPIBgFxuJZjlp6po8kX32Ogk9s1cXuqHLvE7BiJVWvxf2j7pV5sFT1cDkRxSOJsomlSQtv/UM= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1743795677; c=relaxed/simple; bh=bysiSM9qAdo7w3jTZoibNt/lKzOp1jzLwij4XBANYyU=; h=Date:In-Reply-To:Mime-Version:References:Message-ID:Subject:From: To:Cc:Content-Type; b=rNxBwkbNXkbIF4PupvtbqceH8KSQ/UejfY452Qtyb6I1MLtAvbS+Uo5tftxMsz55lcLpTUVvAKRH3yxZr+wO2xQ32JKFRiB7M1nFcGyohUsbSTh2zL7t8TIwsMNJojDmAiQ90548I/cQVqhpR5NsuY0BilAR3LeBH8N9+teak3c= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=google.com; spf=pass smtp.mailfrom=flex--seanjc.bounces.google.com; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b=WkrHZhfY; arc=none smtp.client-ip=209.85.214.201 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=google.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=flex--seanjc.bounces.google.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b="WkrHZhfY" Received: by mail-pl1-f201.google.com with SMTP id d9443c01a7336-2264e5b2b7cso21471345ad.2 for ; Fri, 04 Apr 2025 12:41:15 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20230601; t=1743795675; x=1744400475; darn=vger.kernel.org; h=cc:to:from:subject:message-id:references:mime-version:in-reply-to :date:reply-to:from:to:cc:subject:date:message-id:reply-to; bh=PxawxOY/h734lZVFn8ksHoL6g5gCibnUodY00H7f/TU=; b=WkrHZhfYe1iUaHMHjDItttTvLzKSkVsJJUSGRvxNkgSWZIl3o6p/KnSb8TDip3Km5J WGnwufhyvRwOu6lKJKihS6Otwe3GSyIjHV8KGgfxFJiGBEpOXiGqh278KHE7j9jWreFc GYrcys/j7DadpbZX80V04iZLI1ZTFJ/LRPDjvzZN2zPKxsBMphn3EIXUInsi59BQ/WLU 1QA+AgtErReP3H+/WpbR4D48Anxdghp50PMnfYeVUydNA8huN8kzp4lavDM6JFA793mt inRPEDqvOXBZ8VAoWYtcM4QHiq8X5QVFSa6DWpaquHViIy8m8hiDiVUaKCrodGNTJsqr zUBw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1743795675; x=1744400475; h=cc:to:from:subject:message-id:references:mime-version:in-reply-to :date:reply-to:x-gm-message-state:from:to:cc:subject:date:message-id :reply-to; bh=PxawxOY/h734lZVFn8ksHoL6g5gCibnUodY00H7f/TU=; b=hSWV6OrEnKwLusvqu2Ng+EfADDLiR+N2g9FBKigr2dIK0m4axGqY2wnZx0YHcXMdH1 AyywGsJJFlJdHbg6qFx016Utd3HdnjAPtOfxi/NqfRuf3efO1EoCH0mSZfVdCJGihAzY 0/MRvfywFzcIeokIPol7NLJH2bFS2Qj8+jDwh30M8elG1TYUpoxSLhyFLboA40ZFc3Dg 2++oKsyglrV6U3fqbxYMB13BL6G/2YHTF0tQUaNeJoiG1OcGZT8sv6usQxbeanIw5Wac 0nyUbz10ixGaKLaAWYS7MxszeBXZpLHcs4W5oHD1ZH4rJZvO/L8+iR3oEczNAMZZ16Mi OcUw== X-Forwarded-Encrypted: i=1; AJvYcCX9V7+ifPezjchinefPtV5j4srR+XUuBIoh1bcq82Za1viS5rXr5KZpXItfQLqEsuWmv/l5mYrBDJ1TT5E=@vger.kernel.org X-Gm-Message-State: AOJu0Yzf2qNbYwZuCcE+emNFpWA25bjLAyj+sejNmNSIzACQ1+XChYRP 8cqH7QyKSZ6NaSyFZNfdWqjBoCKzBMnL+QgdLeAgWcOCnwp4o8oDooipZluxhIXmQtuc1Tw2G1b Q8Q== X-Google-Smtp-Source: AGHT+IF0dzvMV/vshjJPGocWxq0fkVPPJN838E/ImYVh1WQmz0SFa2CAc3x62alWuXzKlUZkk5y4MEI9SnQ= X-Received: from pfbgs17.prod.google.com ([2002:a05:6a00:4d91:b0:736:56a2:99ac]) (user=seanjc job=prod-delivery.src-stubby-dispatcher) by 2002:a17:903:3c66:b0:224:191d:8a87 with SMTP id d9443c01a7336-22a8a8739e2mr55191535ad.26.1743795675258; Fri, 04 Apr 2025 12:41:15 -0700 (PDT) Reply-To: Sean Christopherson Date: Fri, 4 Apr 2025 12:39:06 -0700 In-Reply-To: <20250404193923.1413163-1-seanjc@google.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 References: <20250404193923.1413163-1-seanjc@google.com> X-Mailer: git-send-email 2.49.0.504.g3bcea36a83-goog Message-ID: <20250404193923.1413163-52-seanjc@google.com> Subject: [PATCH 51/67] KVM: SVM: Process all IRTEs on affinity change even if one update fails From: Sean Christopherson To: Sean Christopherson , Paolo Bonzini , Joerg Roedel , David Woodhouse , Lu Baolu Cc: kvm@vger.kernel.org, iommu@lists.linux.dev, linux-kernel@vger.kernel.org, Maxim Levitsky , Joao Martins , 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 5f5022d12b1b..5544e8e88926 100644 --- a/arch/x86/kvm/svm/avic.c +++ b/arch/x86/kvm/svm/avic.c @@ -857,12 +857,10 @@ 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(ir, &svm->ir_list, node) { + list_for_each_entry(ir, &svm->ir_list, node) ret =3D amd_iommu_update_ga(cpu, ir->data); - if (ret) - return ret; - } - return 0; + + return ret; } =20 void avic_vcpu_load(struct kvm_vcpu *vcpu, int cpu) --=20 2.49.0.504.g3bcea36a83-goog