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=-13.0 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,NICE_REPLY_A,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 40E36C433DB for ; Wed, 3 Feb 2021 11:29:03 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id ECC4564F6A for ; Wed, 3 Feb 2021 11:29:02 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234155AbhBCL27 (ORCPT ); Wed, 3 Feb 2021 06:28:59 -0500 Received: from us-smtp-delivery-124.mimecast.com ([216.205.24.124]:40699 "EHLO us-smtp-delivery-124.mimecast.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234217AbhBCL1V (ORCPT ); Wed, 3 Feb 2021 06:27:21 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1612351554; 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=sEB/LyeruEcu4oLY1qq972Bq0pPdpUz5iU5q3+LYBtU=; b=RsRl5fMjKTfslSTE6pG7cd9MzYyeMLanY0JRLGyp16m3RvW+TD8Ay41h2MdvcMHM6Q6nFy hAeWDHl0vZRb10BRi6BShT0tRrNCunFdIigFSevie65GvMtJOEhH9/l47An/s2y24PE6Zq 3JWJBSyTDbUd2INOnpPeeV3gAPcZCRk= Received: from mail-ed1-f72.google.com (mail-ed1-f72.google.com [209.85.208.72]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-403-lH_NPUi8M5Sbp-BwQKjHMQ-1; Wed, 03 Feb 2021 06:25:53 -0500 X-MC-Unique: lH_NPUi8M5Sbp-BwQKjHMQ-1 Received: by mail-ed1-f72.google.com with SMTP id o8so11326871edh.12 for ; Wed, 03 Feb 2021 03:25:52 -0800 (PST) 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=sEB/LyeruEcu4oLY1qq972Bq0pPdpUz5iU5q3+LYBtU=; b=qXjqzOub1BXNDLY4dGP5tRYJCza7yDepTjWVZ5DaJg4H08y40+JdiaqzEkhKdYfK5p IP2nbRdGZn6xc8cnUU4GZcWKpdBbUc4VL+2poGxaKeCKFLVIY9+1CBVe6A3TaZb3bN0R jxsV43dOHK3vBgQlR9mnOBNd5OWVEN7kQSaOxbcvoKJmbJSahdKc3mn4bceysj65sCYE jBggny0n7L0fuBQEuDiRP0cmShx5A5Lw+i5hGz2hpfv5CP19eMQqz1ogbB20jgKaXMXo MN9oP02g0wMobS7VGjEkgP3IhksqmiIoHE1XShKmANww4PUrKyhV3b2X/lzSexzjYArv F7yQ== X-Gm-Message-State: AOAM530fcR1MTUyiRapAvN7EflLKSNJGVuv9BeKfZyzKxuQzFegcHDtd OSKWm+8SSdTih4NXeWp9Q7FR1rFTy681ngOKoyelQfWlJIwZvYTA3N1j0Wqecyukob6nrf3MjJw niXPOK6WKwZ/0PQ/61og+lB8g X-Received: by 2002:a17:906:9588:: with SMTP id r8mr2780621ejx.167.1612351552077; Wed, 03 Feb 2021 03:25:52 -0800 (PST) X-Google-Smtp-Source: ABdhPJw5LF7V/ZFdg7RG3zBOSMF7OAPRHvwsAl6XPGFjrumkESOYUbSt8oa9zNB8/FuSYZsHp14QOw== X-Received: by 2002:a17:906:9588:: with SMTP id r8mr2780602ejx.167.1612351551955; Wed, 03 Feb 2021 03:25:51 -0800 (PST) Received: from ?IPv6:2001:b07:6468:f312:c8dd:75d4:99ab:290a? ([2001:b07:6468:f312:c8dd:75d4:99ab:290a]) by smtp.gmail.com with ESMTPSA id bo24sm711966edb.51.2021.02.03.03.25.50 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Wed, 03 Feb 2021 03:25:51 -0800 (PST) Subject: Re: [PATCH v2 24/28] KVM: x86/mmu: Allow zap gfn range to operate under the mmu read lock To: Ben Gardon , linux-kernel@vger.kernel.org, kvm@vger.kernel.org Cc: Peter Xu , Sean Christopherson , Peter Shier , Peter Feiner , Junaid Shahid , Jim Mattson , Yulei Zhang , Wanpeng Li , Vitaly Kuznetsov , Xiao Guangrong References: <20210202185734.1680553-1-bgardon@google.com> <20210202185734.1680553-25-bgardon@google.com> From: Paolo Bonzini Message-ID: Date: Wed, 3 Feb 2021 12:25:50 +0100 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.6.0 MIME-Version: 1.0 In-Reply-To: <20210202185734.1680553-25-bgardon@google.com> Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-US Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 02/02/21 19:57, Ben Gardon wrote: > > @@ -5518,13 +5518,17 @@ void kvm_zap_gfn_range(struct kvm *kvm, gfn_t gfn_start, gfn_t gfn_end) > } > } > > + kvm_mmu_unlock(kvm); > + > if (kvm->arch.tdp_mmu_enabled) { Temporary compile error. Paolo