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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 3CB59C433EF for ; Tue, 15 Mar 2022 21:06:15 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1351806AbiCOVH0 (ORCPT ); Tue, 15 Mar 2022 17:07:26 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:47652 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1343868AbiCOVHX (ORCPT ); Tue, 15 Mar 2022 17:07:23 -0400 Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.129.124]) by lindbergh.monkeyblade.net (Postfix) with ESMTP id CDC5255BC0 for ; Tue, 15 Mar 2022 14:06:10 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1647378370; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=emsFlxwu2Fpzz4LWF/dJeqV7CMDiP7wZEH5sRvwPHYI=; b=SecC7YL5V0epz78EBZSLIc/7Mbkxbo8hVwecjQSkCfgt3TEd2lncCZyOPn8nCSYgQXVIF0 mivUWyyecWMRNk/L6Vd5DLRxmSaf53IXb904BtyX8s5Fld1tyq1ABYD+K7R42XyOvsij0J uQvuGyzkGabWN8Kyy9VZfyhpcElgOOw= Received: from mail-ej1-f71.google.com (mail-ej1-f71.google.com [209.85.218.71]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id us-mta-607-qaizVjXUP4eKePHBXdxsOw-1; Tue, 15 Mar 2022 17:06:08 -0400 X-MC-Unique: qaizVjXUP4eKePHBXdxsOw-1 Received: by mail-ej1-f71.google.com with SMTP id ey18-20020a1709070b9200b006da9614af58so51788ejc.10 for ; Tue, 15 Mar 2022 14:06:08 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:message-id:date:mime-version:user-agent:subject :content-language:to:cc:references:from:in-reply-to :content-transfer-encoding; bh=emsFlxwu2Fpzz4LWF/dJeqV7CMDiP7wZEH5sRvwPHYI=; b=vGu8a5SYp28zehCzG3spjnXVFRtjh+IEvvQ2xx6o7hmyxfQagS2KP/WKmkpSKuYPg3 FGMZOIDRVF/r+Ka5uCxkz7wuH3m8B+KQAYdWCorpAFyclZzNUFFsgqNMKrvfHOKlwtnm pjkxm7xnevJHRuOcGb9Os2lHtbBRqs/3iSAfV/s0/RqZ1Imt1WcDS70rGDdawLEvCrfo zdl7f2hq0uzcxEcWhQDiZIYpN2r/punZlITsAPyKe/xfelBu4uT5+Vx++UKcdoVS+JGG +IZFkzftFpvW2ehGx0qMlhNBvX6jGEgWXnr3+QPVLu7StvpVOS93CecUEyLPstXoyMcX TMrQ== X-Gm-Message-State: AOAM531idKaEKr8wh73fkH98CXFQ9XnwsuEpp1WGVChecZPV3StZvzRM uk3/+zN6n/9sfM1SmbXpvqeeO4ovYxhtVWwHWQ4qU7C3nmkRetrXmUNnCsYhtfHNsOoKDcIA8rp Qz9v8jNdYrRThgyUsuySp9v6X X-Received: by 2002:a17:907:96a8:b0:6db:4c68:1393 with SMTP id hd40-20020a17090796a800b006db4c681393mr24116130ejc.87.1647378367376; Tue, 15 Mar 2022 14:06:07 -0700 (PDT) X-Google-Smtp-Source: ABdhPJzE4fUDhYm2sNjarm9dSLvKXqwJDtQNDnrVXJGWOPwLtqbXXpUkCFSU8NNt0KzN353BvFc3EQ== X-Received: by 2002:a17:907:96a8:b0:6db:4c68:1393 with SMTP id hd40-20020a17090796a800b006db4c681393mr24116110ejc.87.1647378367151; Tue, 15 Mar 2022 14:06:07 -0700 (PDT) Received: from ?IPV6:2001:b07:6468:f312:63a7:c72e:ea0e:6045? ([2001:b07:6468:f312:63a7:c72e:ea0e:6045]) by smtp.googlemail.com with ESMTPSA id s8-20020a170906354800b006da9dec91f2sm52534eja.163.2022.03.15.14.06.04 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Tue, 15 Mar 2022 14:06:06 -0700 (PDT) Message-ID: <5cc80cc7-8088-3bb7-4bbe-40c527465658@redhat.com> Date: Tue, 15 Mar 2022 22:06:02 +0100 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:91.0) Gecko/20100101 Thunderbird/91.5.0 Subject: Re: [PATCH V2 0/5] KVM: X86: permission_fault() for SMAP Content-Language: en-US To: Lai Jiangshan , linux-kernel@vger.kernel.org, kvm@vger.kernel.org, Sean Christopherson Cc: Lai Jiangshan References: <20220311070346.45023-1-jiangshanlai@gmail.com> From: Paolo Bonzini In-Reply-To: <20220311070346.45023-1-jiangshanlai@gmail.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 3/11/22 08:03, Lai Jiangshan wrote: > From: Lai Jiangshan > > Some change in permission_fault() for SMAP. It also reduces > calls two callbacks to get CPL and RFLAGS in come cases, but it > has not any measurable performance change in tests (kernel build > in guest). I am going to queue patches 1-4. The last one shouldn't really have any performance impact with static calls. Paolo