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=-2.4 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 63CD7C433E1 for ; Wed, 8 Jul 2020 11:10:12 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 3F921206F6 for ; Wed, 8 Jul 2020 11:10:12 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b="aPMTnqW4" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728709AbgGHLKK (ORCPT ); Wed, 8 Jul 2020 07:10:10 -0400 Received: from us-smtp-delivery-1.mimecast.com ([207.211.31.120]:34429 "EHLO us-smtp-1.mimecast.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1728764AbgGHLKJ (ORCPT ); Wed, 8 Jul 2020 07:10:09 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1594206608; 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=14f1mTpd7HVDpOyXYxD6GElv4scdvE+XkzizMQMoy8M=; b=aPMTnqW4vi7hq5klY6J2VUbGsVQnrotJZlcnMe8cPHSSCQdUyKf3qPpba8e7uJ3m07i31x WEXkUFh125t61i6fffK+YSFOyx+bGHtMv+Zh9YR2Z0HlgBCIitfthnb+/4hMewT87ksT7a VphcxakFTpnfY7JYX0zPbtO2S1NDblU= Received: from mail-wr1-f69.google.com (mail-wr1-f69.google.com [209.85.221.69]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-391-RwB05G-MOPK6OfZ0w1nCpw-1; Wed, 08 Jul 2020 07:10:05 -0400 X-MC-Unique: RwB05G-MOPK6OfZ0w1nCpw-1 Received: by mail-wr1-f69.google.com with SMTP id 89so28140735wrr.15 for ; Wed, 08 Jul 2020 04:10:05 -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=14f1mTpd7HVDpOyXYxD6GElv4scdvE+XkzizMQMoy8M=; b=ZXWFwiICjspZqC6FSgINQEhV/CE6sOGnUoKquYONm1ydNMLXEIi4SX/DYxHBkTWMfy s2vnOzGQV2kk9p1a/4fEfWMOk6PdZb4VUwZ9xp21hDPYf5POUSWyUX6ZAIbvX8dNeyGv Qkn5Peu8+Gqbh9tFFPhwxB5RHGmmpig0opwISLvLNziJfKiB2wiU5FQzYCDyVdiifm16 tOsMLpbWsMy3BB/VkotZMrD/e1MA3cRneuJO2jJkqtqm5UOXDbO4nbI/SMPM6onk6g6O dPbZZ3eg1OtOaN86YATdzCcoK7h14z37QU5gvjnMQAO/Y4uJqG9Epn/nHToUAoK82duT 1Wig== X-Gm-Message-State: AOAM531neZdpg11uD21Z9QxrAFwBvzo+sfToIaZw9fnEkozH7NttyWDk qvIuMy3nSkMrHfTOdC/49C6o0Y4LvJuXamz0IZ33bqQOODZA9hgabbEjAP0JbhQ90RuhA0guH+h zzAkAL2YHwr8Cv0crqQILaLSh X-Received: by 2002:a05:6000:10c4:: with SMTP id b4mr54529520wrx.50.1594206604360; Wed, 08 Jul 2020 04:10:04 -0700 (PDT) X-Google-Smtp-Source: ABdhPJyS9IXWXY8AsLX9C3rrryHKZ4q/47XveQNN7O/2+yEMRnuw24+Agts1i9nEHB/Ycwubh37ATw== X-Received: by 2002:a05:6000:10c4:: with SMTP id b4mr54529504wrx.50.1594206604189; Wed, 08 Jul 2020 04:10:04 -0700 (PDT) Received: from ?IPv6:2001:b07:6468:f312:9541:9439:cb0f:89c? ([2001:b07:6468:f312:9541:9439:cb0f:89c]) by smtp.gmail.com with ESMTPSA id j6sm5766924wma.25.2020.07.08.04.10.03 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Wed, 08 Jul 2020 04:10:03 -0700 (PDT) Subject: Re: [PATCH 1/2] KVM: SVM: avoid infinite loop on NPF from bad address To: Wanpeng Li Cc: LKML , kvm , Sean Christopherson , "# v3 . 10+" References: <20200417163843.71624-1-pbonzini@redhat.com> <20200417163843.71624-2-pbonzini@redhat.com> <57a405b3-6836-83f0-ed97-79f637f7b456@redhat.com> From: Paolo Bonzini Message-ID: <7507de6a-799e-4f71-012d-ddaa39178284@redhat.com> Date: Wed, 8 Jul 2020 13:10:03 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.9.0 MIME-Version: 1.0 In-Reply-To: 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 08/07/20 11:08, Wanpeng Li wrote: >>>> +EXPORT_SYMBOL_GPL(kvm_vcpu_gfn_to_memslot); >>> This commit incurs the linux guest fails to boot once add --overcommit >>> cpu-pm=on or not intercept hlt instruction, any thoughts? >> Can you write a selftest? > Actually I don't know what's happening here(why not intercept hlt > instruction has associated with this commit), otherwise, it has > already been fixed. :) I don't understand, what has been fixed and where? Paolo