From nobody Mon Apr 6 20:11:41 2026 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 8A39AECAAA1 for ; Sat, 3 Sep 2022 00:24:04 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231736AbiICAYB (ORCPT ); Fri, 2 Sep 2022 20:24:01 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:53670 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231401AbiICAXT (ORCPT ); Fri, 2 Sep 2022 20:23:19 -0400 Received: from mail-pj1-x1049.google.com (mail-pj1-x1049.google.com [IPv6:2607:f8b0:4864:20::1049]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 7B8FBF63D7 for ; Fri, 2 Sep 2022 17:23:18 -0700 (PDT) Received: by mail-pj1-x1049.google.com with SMTP id a17-20020a17090abe1100b001fda49516e2so3864894pjs.2 for ; Fri, 02 Sep 2022 17:23:18 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20210112; h=cc:to:from:subject:message-id:references:mime-version:in-reply-to :date:reply-to:from:to:cc:subject:date; bh=iceCiZqUYYalhRNpv9X384KNVicva7F6it80d8wrhy8=; b=edqM6eTlCy2LopEzwgZ1W+ygH/qNwnjBJpOCWfbcUtowcPPJOlQY7mN8CGTLjhbA8B 6xmeKJ4KjinMsoSBkiIVjrGctJR2bcN+JSS4WpZQmD8ddpA3zt4I12GAc06cuYbcwUTA qm+NIFvDq6Ufc93vzJOAGXHs0SMO0Ddtfpnf7Z1dYD/AEExEinTELFztOsAj3tPkj2d1 QC/yLUVYSLHn+AghFa0zqWJ5+08UKuiBc0wWcX0iREvFL8Ea3nZXnpLDZHJ6KUhh6rAz hFGuA6/++f4ixuhH3+k8TLWJ6l6Ks+FdkILZBlGacb6NDhjwS8Z8ESwNTZFXwSq9gzd2 TE5Q== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; 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; bh=iceCiZqUYYalhRNpv9X384KNVicva7F6it80d8wrhy8=; b=LXqAt7oCTQIatk8SrdWtlhl4XEmr09j2fkTcocCvSG6IvsJNxRklxaYQTDHTT9cTZw J/NFMHj6emBmPffKpNaxET6vF5hCeoyKqu2Znh85QDy0i2go3hdhuC0QQgY2cma0VLXQ Dakh76aQeEG2Ukf7D/9gRIDpuWFTDSeTiFezYTa3jBc/QMifTwYo3QIucmZb03Zamzam E8Nn1Yeqb2g2yWI1CORPbyaBXqAZb5m7OmolskHpM+E2Y0BXSgvhCX2S1foQApkncSkj mnr5MU3avOaYJIgdwdpIR/i4yZxOflveh4RIdWQC5CBatiakvx5UCjGKimzNsXA2BNGo 7aJA== X-Gm-Message-State: ACgBeo18MYG78ek52u1GZ+WO5YnbYLoOdEwT7FBKq3KELTMfOXuhN6qW SQsUY9lbBgUI7y0kg5pxazK+v581PZM= X-Google-Smtp-Source: AA6agR7ycJmrf38F6f5piy/D0fLpR9q0jyyWVg1fTy47spj87vDBe4t10tqVp1k2Px/2XsdvgWBZlColM+s= X-Received: from zagreus.c.googlers.com ([fda3:e722:ac3:cc00:7f:e700:c0a8:5c37]) (user=seanjc job=sendgmr) by 2002:a62:5ac6:0:b0:537:f0fa:4ae1 with SMTP id o189-20020a625ac6000000b00537f0fa4ae1mr33026877pfb.70.1662164598026; Fri, 02 Sep 2022 17:23:18 -0700 (PDT) Reply-To: Sean Christopherson Date: Sat, 3 Sep 2022 00:22:42 +0000 In-Reply-To: <20220903002254.2411750-1-seanjc@google.com> Mime-Version: 1.0 References: <20220903002254.2411750-1-seanjc@google.com> X-Mailer: git-send-email 2.37.2.789.g6183377224-goog Message-ID: <20220903002254.2411750-12-seanjc@google.com> Subject: [PATCH v2 11/23] KVM: SVM: Add helper to perform final AVIC "kick" of single vCPU From: Sean Christopherson To: Sean Christopherson , Paolo Bonzini Cc: kvm@vger.kernel.org, linux-kernel@vger.kernel.org, Suravee Suthikulpanit , Maxim Levitsky , Li RongQing Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" Add a helper to perform the final kick, two instances of the ICR decoding is one too many. No functional change intended. Signed-off-by: Sean Christopherson Reviewed-by: Maxim Levitsky --- arch/x86/kvm/svm/avic.c | 25 +++++++++++++------------ 1 file changed, 13 insertions(+), 12 deletions(-) diff --git a/arch/x86/kvm/svm/avic.c b/arch/x86/kvm/svm/avic.c index b4b5f1422db7..3400046ad0b4 100644 --- a/arch/x86/kvm/svm/avic.c +++ b/arch/x86/kvm/svm/avic.c @@ -344,6 +344,16 @@ void avic_ring_doorbell(struct kvm_vcpu *vcpu) put_cpu(); } =20 + +static void avic_kick_vcpu(struct kvm_vcpu *vcpu, u32 icrl) +{ + vcpu->arch.apic->irr_pending =3D true; + svm_complete_interrupt_delivery(vcpu, + icrl & APIC_MODE_MASK, + icrl & APIC_INT_LEVELTRIG, + icrl & APIC_VECTOR_MASK); +} + /* * A fast-path version of avic_kick_target_vcpus(), which attempts to match * destination APIC ID to vCPU without looping through all vCPUs. @@ -442,11 +452,7 @@ static int avic_kick_target_vcpus_fast(struct kvm *kvm= , struct kvm_lapic *source if (unlikely(!target_vcpu)) return 0; =20 - target_vcpu->arch.apic->irr_pending =3D true; - svm_complete_interrupt_delivery(target_vcpu, - icrl & APIC_MODE_MASK, - icrl & APIC_INT_LEVELTRIG, - icrl & APIC_VECTOR_MASK); + avic_kick_vcpu(target_vcpu, icrl); return 0; } =20 @@ -470,13 +476,8 @@ static void avic_kick_target_vcpus(struct kvm *kvm, st= ruct kvm_lapic *source, */ kvm_for_each_vcpu(i, vcpu, kvm) { if (kvm_apic_match_dest(vcpu, source, icrl & APIC_SHORT_MASK, - dest, icrl & APIC_DEST_MASK)) { - vcpu->arch.apic->irr_pending =3D true; - svm_complete_interrupt_delivery(vcpu, - icrl & APIC_MODE_MASK, - icrl & APIC_INT_LEVELTRIG, - icrl & APIC_VECTOR_MASK); - } + dest, icrl & APIC_DEST_MASK)) + avic_kick_vcpu(vcpu, icrl); } } =20 --=20 2.37.2.789.g6183377224-goog