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=-23.6 required=3.0 tests=BAYES_00,DKIMWL_WL_MED, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER,INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, USER_IN_DEF_DKIM_WL autolearn=unavailable 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 4FBB2C433E9 for ; Wed, 6 Jan 2021 17:28:49 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id F2B6723132 for ; Wed, 6 Jan 2021 17:28:48 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728053AbhAFR2a (ORCPT ); Wed, 6 Jan 2021 12:28:30 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:56672 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726532AbhAFR21 (ORCPT ); Wed, 6 Jan 2021 12:28:27 -0500 Received: from mail-pg1-x529.google.com (mail-pg1-x529.google.com [IPv6:2607:f8b0:4864:20::529]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id A34ADC061575 for ; Wed, 6 Jan 2021 09:27:41 -0800 (PST) Received: by mail-pg1-x529.google.com with SMTP id n7so2698412pgg.2 for ; Wed, 06 Jan 2021 09:27:41 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20161025; h=date:from:to:cc:subject:message-id:references:mime-version :content-disposition:in-reply-to; bh=ddIsLnymnErAx74Eb0083K50LpcPXAZmPlKKKyZRFNc=; b=sYp3yeJ/vECyORk4qtnuBtIuz3Q25kiLlBv1sr+EGYBTh/19P+hiNN1thnm1XAeuuY DTHz8arumfVh3C1LT2ooxMJBnQXbD1hZtFDpnGlPxf2M3J6RFt/WZvCDcJA2Aq1OwUQj oBvxjeMPYYhhESk1TsnKHfXgkivrkIiKcrB4hIG9VNklb1oM6nWJRMSp9QAdskZ1iPxn jpic2qd/+/Rer+YR5klM2JxYCDin3ZRjRicVJPznUy6NfNXbYUHbDc9ViRzwOKc3RaoU nPKaR3s3r285CyaQO/pVBFE2VkJNoo1FLXaA/Z418G55dKWdGxsmnhrQcRerWHxDI0J2 OWgw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:from:to:cc:subject:message-id:references :mime-version:content-disposition:in-reply-to; bh=ddIsLnymnErAx74Eb0083K50LpcPXAZmPlKKKyZRFNc=; b=Q/SgkeZtuqGTPFTWbj2T8fNOnxPsaEBROYSY4R08CfZWDk6g3gZ/lWSX+PSnWeAJMz 7TtsmrLdAp6lMZg3uzpYFIlPK6EO9/ZPRNSX2X46KaVxR470tuzsvLrtTnCHp9sGCdDY VhlF45pZ/u+yMt7moTUUCkSFbiokSPNsx6eQLGoZS7du30VJDTjTjWlLJGpFAHqwHxbJ uHtFvHbjS2BEaR53lWcLkchLQ40A9xM1p1Ub36YFafe06LuFSYUa9/9TJ/2xWhnLL6gY 0f8BTP8tlqm4t75LHL8QnMsSdA/CUSTlWTA1W+daGgq9eyj67FqUZNSNhj5vPNdUnZma pUyA== X-Gm-Message-State: AOAM531gdKcg6rnAX67RLIP+Y19FCs6bqu1xEyiE1FOZmnQNbE5XDYJt EPlqQ2sNO/skfDSjg0er/yybow== X-Google-Smtp-Source: ABdhPJztuC6feaacDs75zozia7HHmTRPpVZ/wT2H7Hsr86n5N+EoNkgPtNLkirgB6ZJXropuOTHO6w== X-Received: by 2002:a62:fc4f:0:b029:19d:d060:27ca with SMTP id e76-20020a62fc4f0000b029019dd06027camr4767377pfh.66.1609954060855; Wed, 06 Jan 2021 09:27:40 -0800 (PST) Received: from google.com ([2620:15c:f:10:1ea0:b8ff:fe73:50f5]) by smtp.gmail.com with ESMTPSA id mr7sm2742201pjb.31.2021.01.06.09.27.38 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 06 Jan 2021 09:27:40 -0800 (PST) Date: Wed, 6 Jan 2021 09:27:33 -0800 From: Sean Christopherson To: Maxim Levitsky Cc: kvm@vger.kernel.org, Ingo Molnar , Thomas Gleixner , Paolo Bonzini , Sean Christopherson , "open list:X86 ARCHITECTURE (32-BIT AND 64-BIT)" , Jim Mattson , Joerg Roedel , "maintainer:X86 ARCHITECTURE (32-BIT AND 64-BIT)" , Wanpeng Li , "H. Peter Anvin" , Vitaly Kuznetsov , Borislav Petkov Subject: Re: [PATCH 4/6] KVM: nSVM: correctly restore nested_run_pending on migration Message-ID: References: <20210106105001.449974-1-mlevitsk@redhat.com> <20210106105001.449974-5-mlevitsk@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20210106105001.449974-5-mlevitsk@redhat.com> Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed, Jan 06, 2021, Maxim Levitsky wrote: > The code to store it on the migration exists, but no code was restoring it. > > Signed-off-by: Maxim Levitsky > --- > arch/x86/kvm/svm/nested.c | 4 ++++ > 1 file changed, 4 insertions(+) > > diff --git a/arch/x86/kvm/svm/nested.c b/arch/x86/kvm/svm/nested.c > index 6208d3a5a3fdb..c1a3d0e996add 100644 > --- a/arch/x86/kvm/svm/nested.c > +++ b/arch/x86/kvm/svm/nested.c > @@ -1203,6 +1203,10 @@ static int svm_set_nested_state(struct kvm_vcpu *vcpu, > * in the registers, the save area of the nested state instead > * contains saved L1 state. > */ > + > + if (kvm_state->flags & KVM_STATE_NESTED_RUN_PENDING) > + svm->nested.nested_run_pending = true; This should be: svm->nested.nested_run_pending = !!(kvm_state->flags & KVM_STATE_NESTED_RUN_PENDING); > + > copy_vmcb_control_area(&hsave->control, &svm->vmcb->control); > hsave->save = *save; > > -- > 2.26.2 >