From nobody Tue Apr 7 07:07:56 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 EA853C0502A for ; Wed, 31 Aug 2022 00:38:03 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231886AbiHaAiC (ORCPT ); Tue, 30 Aug 2022 20:38:02 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:51656 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232069AbiHaAhJ (ORCPT ); Tue, 30 Aug 2022 20:37:09 -0400 Received: from mail-pj1-x104a.google.com (mail-pj1-x104a.google.com [IPv6:2607:f8b0:4864:20::104a]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id E2151AB1A6 for ; Tue, 30 Aug 2022 17:36:01 -0700 (PDT) Received: by mail-pj1-x104a.google.com with SMTP id rj3-20020a17090b3e8300b001fae0be4dc4so11947405pjb.7 for ; Tue, 30 Aug 2022 17:36:01 -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; bh=+YMlCYc3ExFhBvYYADHjoE7ZsXqjL3nmZXjZ12ZiBNw=; b=sLNACwIJjMr1ibfCQ93pmBhaT79sm158HWrLH3PRFrFvzygtTWVigpI2OlQRDw5QXN MO8uT4BKABOGwX5vGOO7BzoHeg9gQfVjB3OJ1uvfMPL3H4SKJPw1b6yW3Fh5jY1WUgVf BrLOzeUWMB7f5TGHjJZ6bOwp0ev/MiX7H841oomE+B8NatX77H99VbBLNTEJ+krbs6iT ANxXOacClU8ppUO6qCOnpsLDNgn1dcFvH2ePriX7+itvU0eiNcK/u8eirQmOr+DsGvJm 1SLH0/D83wpAQSE6opsCLSpuRK967tzQZ+PYFLK7IUA/T1Qopj9L1BBFJIQy0UqmLW2A ovIQ== 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; bh=+YMlCYc3ExFhBvYYADHjoE7ZsXqjL3nmZXjZ12ZiBNw=; b=Dac+Bh6acKsXrmfeY2hfs26kF+dwRMoFdYxmJfUl6elfcFJOAAmIG/hfKf5h+nuJPc 3uE4ZTk8D3iSYCoCGCzYVSIavzL0/zeUoXg3DKafqRL+8VjnX+kor2A2UT93AOLHAOl0 iv07zKKu1tOqG1dqVBr4eftAqNAWMHyDJnH8k6UERDAKMHU/DoL5xmnWASyQ+GJysPj4 6Z9fYqs8zyUkKC5yLL46UlTgII2Tw5wKbBfCPu5Ead8mdng9jf3b0Eh4UNRBEEZqZLlL XpdS4uEKmb38F+1MWWMoeiCJ6h6h/I4Nf2AExpw3U3FFm52+jSnphPOyUP7/TdYlzXSY La0Q== X-Gm-Message-State: ACgBeo1PZpCgM5gBLjVooYqTFU9I4a9vjuutrqBlI4a9hKse57B8TobL UTw8+tHn/c0ppYS05qdeX30SoldVk90= X-Google-Smtp-Source: AA6agR6TMGjcK254MJkJTONU/65Ct6ilW9/zfFyM5frT68x5QoUsxITnrV6TghN0fRA891jz32a/NaI1yxQ= X-Received: from zagreus.c.googlers.com ([fda3:e722:ac3:cc00:7f:e700:c0a8:5c37]) (user=seanjc job=sendgmr) by 2002:aa7:9242:0:b0:536:f215:4f4f with SMTP id 2-20020aa79242000000b00536f2154f4fmr23764791pfp.45.1661906127770; Tue, 30 Aug 2022 17:35:27 -0700 (PDT) Reply-To: Sean Christopherson Date: Wed, 31 Aug 2022 00:34:58 +0000 In-Reply-To: <20220831003506.4117148-1-seanjc@google.com> Mime-Version: 1.0 References: <20220831003506.4117148-1-seanjc@google.com> X-Mailer: git-send-email 2.37.2.672.g94769d06f0-goog Message-ID: <20220831003506.4117148-12-seanjc@google.com> Subject: [PATCH 11/19] 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 3959d4766911..2095ece70712 100644 --- a/arch/x86/kvm/svm/avic.c +++ b/arch/x86/kvm/svm/avic.c @@ -329,6 +329,16 @@ 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. @@ -427,11 +437,7 @@ 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 @@ -455,13 +461,8 @@ 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 2.37.2.672.g94769d06f0-goog