From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-5.2 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_SANE_1 autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id A322DC76191 for ; Thu, 18 Jul 2019 07:59:24 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 7EDB420880 for ; Thu, 18 Jul 2019 07:59:24 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2389279AbfGRH7X (ORCPT ); Thu, 18 Jul 2019 03:59:23 -0400 Received: from mail-wr1-f67.google.com ([209.85.221.67]:43337 "EHLO mail-wr1-f67.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726386AbfGRH7X (ORCPT ); Thu, 18 Jul 2019 03:59:23 -0400 Received: by mail-wr1-f67.google.com with SMTP id p13so27530754wru.10 for ; Thu, 18 Jul 2019 00:59:22 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:subject:to:cc:references:from:openpgp:message-id :date:user-agent:mime-version:in-reply-to:content-language :content-transfer-encoding; bh=YU7xn75zhWNLYZOYfhl/a8jSpCY374NewaLRikXTmDo=; b=iB7F/QQfzIfmg2lc9Uv9N2aB086fDVQ1Qv0QIffj9ZNuMO12aB+UCnU5VWE+zBczUk R05u0TfmWJMX5wgrwnXA0H9V1oRBRXc4H+Ik++bRG2GiU0eot1jEgxsu+1CHPpkv07a/ aPT2a9N4MVTmd0Oq7CloIB9earImWxE3Yp8afJghb9qYYbcTbULksYqpqE+toPLVqYKb sQETayVcFJD7ippUutx486NSALqj4xZq6nykBqAAu4vd1CLGl6gbUVrYF7KAWRMqgcaU ISKczCrxFmR4Ac+p4Z/xYJMSkjXhA+FsTMTZhlousmJ7zWsX68r5zUVZjrlRPTQPojVN H7Yg== X-Gm-Message-State: APjAAAUG1WsAnx6YWYdKjt52UWlIoys4uwhFBc10gZ0Jkrze5XUvvqzu xT1tTMxeARyFpmGO76WDsO+EOQ== X-Google-Smtp-Source: APXvYqzWOySTek5F18g1Rk+88tPU7Ltg9YyBhOWSMynJ49lXZcAstzow7qtQj3uQua/BgR9A1MHXIA== X-Received: by 2002:a5d:4941:: with SMTP id r1mr46108607wrs.225.1563436761296; Thu, 18 Jul 2019 00:59:21 -0700 (PDT) Received: from ?IPv6:2001:b07:6468:f312:e427:3beb:1110:dda2? ([2001:b07:6468:f312:e427:3beb:1110:dda2]) by smtp.gmail.com with ESMTPSA id q18sm27264015wrw.36.2019.07.18.00.59.19 (version=TLS1_3 cipher=AEAD-AES128-GCM-SHA256 bits=128/128); Thu, 18 Jul 2019 00:59:20 -0700 (PDT) Subject: Re: [PATCH RESEND] KVM: Boosting vCPUs that are delivering interrupts To: Wanpeng Li , linux-kernel@vger.kernel.org, kvm@vger.kernel.org Cc: =?UTF-8?B?UmFkaW0gS3LEjW3DocWZ?= , Christian Borntraeger References: <1562915730-9490-1-git-send-email-wanpengli@tencent.com> From: Paolo Bonzini Openpgp: preference=signencrypt Message-ID: Date: Thu, 18 Jul 2019 09:59:18 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.7.2 MIME-Version: 1.0 In-Reply-To: <1562915730-9490-1-git-send-email-wanpengli@tencent.com> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 12/07/19 09:15, Wanpeng Li wrote: > diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c > index b4ab59d..2c46705 100644 > --- a/virt/kvm/kvm_main.c > +++ b/virt/kvm/kvm_main.c > @@ -2404,8 +2404,10 @@ void kvm_vcpu_kick(struct kvm_vcpu *vcpu) > int me; > int cpu = vcpu->cpu; > > - if (kvm_vcpu_wake_up(vcpu)) > + if (kvm_vcpu_wake_up(vcpu)) { > + vcpu->preempted = true; > return; > + } > > me = get_cpu(); > if (cpu != me && (unsigned)cpu < nr_cpu_ids && cpu_online(cpu)) > Who is resetting vcpu->preempted to false in this case? This also applies to s390 in fact. Paolo