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=-2.6 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS,USER_AGENT_SANE_1 autolearn=no 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 85189C433E0 for ; Fri, 3 Jul 2020 17:17:32 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 5B6C020B80 for ; Fri, 3 Jul 2020 17:17:32 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b="bs8UUSDY" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726749AbgGCRR3 (ORCPT ); Fri, 3 Jul 2020 13:17:29 -0400 Received: from us-smtp-delivery-1.mimecast.com ([205.139.110.120]:33804 "EHLO us-smtp-1.mimecast.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1726178AbgGCRR2 (ORCPT ); Fri, 3 Jul 2020 13:17:28 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1593796647; 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=I/DSLHDlC0xBmwzi7MVtunbOyv24TPlCbFazyTFY/v4=; b=bs8UUSDYU1KuWmXeiUxMBnURTweH+Q+qISNFWX0HH3AAHs8M+nyNa6krm4/JBk0EkjiGht JQ6zddAk/NtWKbEUNjxQNji72LEwRc82i1xymynzWMXc6iCBLfw1ggN46EkBaAz2ND/qSH zIJL9MdbuUtTUbOhSNdHK3ppqtXewkk= Received: from mail-wm1-f72.google.com (mail-wm1-f72.google.com [209.85.128.72]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-38-gni1M5HENf-VqxpxKWoerQ-1; Fri, 03 Jul 2020 13:17:26 -0400 X-MC-Unique: gni1M5HENf-VqxpxKWoerQ-1 Received: by mail-wm1-f72.google.com with SMTP id g187so35755410wme.0 for ; Fri, 03 Jul 2020 10:17:25 -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:message-id:date :user-agent:mime-version:in-reply-to:content-language :content-transfer-encoding; bh=I/DSLHDlC0xBmwzi7MVtunbOyv24TPlCbFazyTFY/v4=; b=cQMKYOJI+Ckuj80zXcxrcBGIwBFWL070jkC57lWYYYXNQuB+gEdTr1tKztpF954KDK jmiZhvVaj6yIF69jN8WJlZRja8UtLmIeLbcv5cVjkWb7z/77EwDE5BkilcdXe7cl9EPU WmrVQcX46wyT9WSSQC6apsHROYWSFykgNWKzwsgDZjtinfU4XU8c+WYjsYdSEqvTOhZ/ KVUdXJabGZo4s9ucUbL5FsXH1JmJNkPWbxxurQWd7suLhn8C5dMFwEXQLFtvsD6NakiO AIeabQWgCzfGMZozvJz6kAaQl38UaxaTRgavqLzuRIzbxoKhqlm80yaxv+mSamWZAfjK oOHw== X-Gm-Message-State: AOAM530gPJbQbtRQDtzAWP64y1v2wvziFLyNvoEc2Jtwxdjn60z/WUe9 UEi2Q3MC2cclRiUYpk9TXshDaa7Bdg+5jq9VDkQdVQgmgpU9+NDXJ6Oq0XzZHomDgYKBbC3AG2S fqFYV7jgSDzU5myBeKY7nF955 X-Received: by 2002:a05:6000:1143:: with SMTP id d3mr26793167wrx.235.1593796644904; Fri, 03 Jul 2020 10:17:24 -0700 (PDT) X-Google-Smtp-Source: ABdhPJyDlvTnY9QVK/gWukbPZBkYBlSyQACwuEDTYux+eC9el9JhN/4lUqd65pH2NTh/iNNAZNsfOg== X-Received: by 2002:a05:6000:1143:: with SMTP id d3mr26793152wrx.235.1593796644645; Fri, 03 Jul 2020 10:17:24 -0700 (PDT) Received: from ?IPv6:2001:b07:6468:f312:5cf9:fc14:deb7:51fc? ([2001:b07:6468:f312:5cf9:fc14:deb7:51fc]) by smtp.gmail.com with ESMTPSA id q188sm14195363wma.46.2020.07.03.10.17.23 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Fri, 03 Jul 2020 10:17:24 -0700 (PDT) Subject: Re: [PATCH 0/2] KVM: x86/mmu: Optimizations for kvm_get_mmu_page() To: Sean Christopherson Cc: Vitaly Kuznetsov , Wanpeng Li , Jim Mattson , Joerg Roedel , kvm@vger.kernel.org, linux-kernel@vger.kernel.org, Peter Feiner , Jon Cargille References: <20200623194027.23135-1-sean.j.christopherson@intel.com> From: Paolo Bonzini Message-ID: <7a602e91-91ef-fed6-3d5f-bad46c8d7554@redhat.com> Date: Fri, 3 Jul 2020 19:17:23 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.6.0 MIME-Version: 1.0 In-Reply-To: <20200623194027.23135-1-sean.j.christopherson@intel.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 23/06/20 21:40, Sean Christopherson wrote: > Avoid multiple hash lookups in kvm_get_mmu_page(), and tweak the cache > loop to optimize it for TDP. > > Sean Christopherson (2): > KVM: x86/mmu: Avoid multiple hash lookups in kvm_get_mmu_page() > KVM: x86/mmu: Optimize MMU page cache lookup for fully direct MMUs > > arch/x86/kvm/mmu/mmu.c | 26 ++++++++++++++++---------- > 1 file changed, 16 insertions(+), 10 deletions(-) > Queued, thanks. Paolo