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=-8.0 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,NICE_REPLY_A,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 B195BC432BE for ; Mon, 9 Aug 2021 09:03:29 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 89F6A60E52 for ; Mon, 9 Aug 2021 09:03:29 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234098AbhHIJDs (ORCPT ); Mon, 9 Aug 2021 05:03:48 -0400 Received: from us-smtp-delivery-124.mimecast.com ([170.10.133.124]:29672 "EHLO us-smtp-delivery-124.mimecast.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234062AbhHIJDr (ORCPT ); Mon, 9 Aug 2021 05:03:47 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1628499806; 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=YD6YtXFfV0ZdxzY2okiuEvUgqKdEvMrxSjlrPcu8jO8=; b=TGE45nIfVc1g+um7sq5N50r/cK2TNC7qwop/SEytKaV0vV7dWqlnJ1BYczWE92V0tW40WA 3vDjhQxFr1QpikhE2VLcachu9BTsh0/uneRIX0l4ptgsyF00hIY3j3s6pACErozSmRtQnH ZZY+7DVw8v5c6PVbjMBiJPJ50gw9L/U= Received: from mail-ej1-f69.google.com (mail-ej1-f69.google.com [209.85.218.69]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-368-Bhw3bwikOKGqE77DHT5h2Q-1; Mon, 09 Aug 2021 05:03:25 -0400 X-MC-Unique: Bhw3bwikOKGqE77DHT5h2Q-1 Received: by mail-ej1-f69.google.com with SMTP id ja25-20020a1709079899b02905b2a2bf1a62so275424ejc.4 for ; Mon, 09 Aug 2021 02:03:25 -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=YD6YtXFfV0ZdxzY2okiuEvUgqKdEvMrxSjlrPcu8jO8=; b=hc7MdLZ3Rop3qmor7KmcYoTVZqPleg8mKfUP3ly/z57w/O+SRU6iul1er39TnuFE/0 /VSOCe5lW5jXQHMcN2k+46nIBjhuQS/GTPSCKXBYAYHIc02XBM66wdWT4ra07/ZHRjq2 NqYqN+uSuss80DvFYiPrqgUICLimxV3xU3YcfLGx6RKV7beaR4qbbIrTETG5Z3Hm0ApW rbCZkpLmv3Yz1J+p8kHBJS9yos8UACoUJO0r/aTa4iUgr23Wx/0a5G4TVPtx+8IYG2EW nKn8BmojDP3dba6qZq8E94In6a0AZ2SUscJOstkQjg6meAMK2fjxjYd6dpTGPo3cAB1E 8dQw== X-Gm-Message-State: AOAM530/A1L7QQxiITHpc5RBTbLZGRAfbpvtMfRsvr54beVAWRJJVpqc trLMdS2DB3tWDfWVt3tCYJIU+fN8SBc6ciBc/4T8cjw0ksIKgjPb2/LvzmqAbEXECrs4Oa5Vc6W rKxPlPp8njtHy7WS9T0ySjuu+ X-Received: by 2002:a50:eb95:: with SMTP id y21mr1598513edr.5.1628499804169; Mon, 09 Aug 2021 02:03:24 -0700 (PDT) X-Google-Smtp-Source: ABdhPJwzhaL+Jl3EZwRBsYOO8E4+FcpPlNxyP5w/mtjGoLfLcpqqoyNTzhHHD6cjGczoFBtkRapYOw== X-Received: by 2002:a50:eb95:: with SMTP id y21mr1598496edr.5.1628499804014; Mon, 09 Aug 2021 02:03:24 -0700 (PDT) Received: from ?IPv6:2001:b07:6468:f312:5e2c:eb9a:a8b6:fd3e? ([2001:b07:6468:f312:5e2c:eb9a:a8b6:fd3e]) by smtp.gmail.com with ESMTPSA id b1sm5732062ejz.24.2021.08.09.02.03.22 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Mon, 09 Aug 2021 02:03:23 -0700 (PDT) Subject: Re: [PATCH] selftests: KVM: avoid failures due to reserved HyperTransport region To: Joao Martins Cc: stable@vger.kernel.org, David Matlack , Maxim Levitsky , linux-kernel@vger.kernel.org, kvm@vger.kernel.org References: <20210805105423.412878-1-pbonzini@redhat.com> <4b530fb6-81cc-be36-aa68-92ec01c65775@oracle.com> From: Paolo Bonzini Message-ID: <5f3c13be-f65d-1793-bd91-7491d3e149b0@redhat.com> Date: Mon, 9 Aug 2021 11:03:22 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.11.0 MIME-Version: 1.0 In-Reply-To: <4b530fb6-81cc-be36-aa68-92ec01c65775@oracle.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 06/08/21 12:57, Joao Martins wrote: > Base Address Top Address Use > > FD_0000_0000h FD_F7FF_FFFFh Reserved interrupt address space > FD_F800_0000h FD_F8FF_FFFFh Interrupt/EOI IntCtl > FD_F900_0000h FD_F90F_FFFFh Legacy PIC IACK > FD_F910_0000h FD_F91F_FFFFh System Management > FD_F920_0000h FD_FAFF_FFFFh Reserved Page Tables > FD_FB00_0000h FD_FBFF_FFFFh Address Translation > FD_FC00_0000h FD_FDFF_FFFFh I/O Space > FD_FE00_0000h FD_FFFF_FFFFh Configuration > FE_0000_0000h FE_1FFF_FFFFh Extended Configuration/Device Messages > FE_2000_0000h FF_FFFF_FFFFh Reserved The problems we're seeing are with FFFD_0000_0000h. How does the IOMMU interpret bits 40-47 of the address? Paolo