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=-3.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS 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 4582CC2BB40 for ; Mon, 14 Dec 2020 18:34:31 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 0D86C225A9 for ; Mon, 14 Dec 2020 18:34:31 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2440914AbgLNSeZ (ORCPT ); Mon, 14 Dec 2020 13:34:25 -0500 Received: from youngberry.canonical.com ([91.189.89.112]:33583 "EHLO youngberry.canonical.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2440895AbgLNSdz (ORCPT ); Mon, 14 Dec 2020 13:33:55 -0500 Received: from mail-ej1-f72.google.com ([209.85.218.72]) by youngberry.canonical.com with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.86_2) (envelope-from ) id 1kosem-0007v5-13 for linux-kernel@vger.kernel.org; Mon, 14 Dec 2020 18:33:12 +0000 Received: by mail-ej1-f72.google.com with SMTP id a8so4851972ejc.19 for ; Mon, 14 Dec 2020 10:33:12 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=vC5rTts+mOzcrtivhr5wMtWrTwvDKun97Izjg1g5DwM=; b=fmDHYPwJW82aHXOJyDDLHpXlG3ZBSbI6pTRAkeqUuezfVdTIuDhM+E7rncCXweEloS AhB2ejsUl8gTrII6pjJeP7oLWxiGdYLMN5pLJCc8L6qLuGbiINpfilq62CtqnUwSp/rt 1Rf80nd/Otl0qZh/PH5Q1/m++CWXrTWlmrKQrzyITaBx8DsQ+Z5tG9c/nzBQZDgyEvQr VLUXESCCcbkBt0xSeenaxjjNj+xjRRTVI8WgyF9g9W/fNL5IV9OI+jcC1ELd5+LSt1Rz IGii4FVPFeESlArvzck7Ce2Ynof0etL5fpydob+nkQM58N8i6XKSzKqZyQw9UqtD//xI nPCQ== X-Gm-Message-State: AOAM530ltjr+2OyX/K8eOZ3nogvjyQQkuO5/oMPVZyGYDfaXGewqT3eF OTqpyFQac/V5+yVfXcq63ovbyeyBob6UpOvBv9zIjLcGhhO2VS8miCfu564crmlVkKPcUiIE7V2 nl+u3QQuYPC1CYDvbqGabk4eDcKV2SikpDmREkOI1S81hpiYJF0ikcs/odg== X-Received: by 2002:a50:ed04:: with SMTP id j4mr26821208eds.84.1607970791740; Mon, 14 Dec 2020 10:33:11 -0800 (PST) X-Google-Smtp-Source: ABdhPJxKhS9zZJoH5y+WjTKhFM+13gIWs9+51ExLKCSPqVyqui+xXMHuPFwo81j9PBZsvzg/q2ofOvchb4pAtUadEkg= X-Received: by 2002:a50:ed04:: with SMTP id j4mr26821177eds.84.1607970791542; Mon, 14 Dec 2020 10:33:11 -0800 (PST) MIME-Version: 1.0 References: <20201130202021.GA1106292@bjorn-Precision-5520> In-Reply-To: <20201130202021.GA1106292@bjorn-Precision-5520> From: Guilherme Piccoli Date: Mon, 14 Dec 2020 15:32:35 -0300 Message-ID: Subject: Re: [PATCH 1/3] x86/quirks: Scan all busses for early PCI quirks To: Bjorn Helgaas Cc: "Eric W. Biederman" , Thomas Gleixner , lukas@wunner.de, linux-pci@vger.kernel.org, Pingfan Liu , andi@firstfloor.org, "H. Peter Anvin" , Baoquan He , "the arch/x86 maintainers" , Sinan Kaya , Ingo Molnar , Jay Vosburgh , Dave Young , Gavin Guo , Borislav Petkov , Bjorn Helgaas , Guowen Shan , "Rafael J. Wysocki" , "Guilherme G. Piccoli" , kexec mailing list , LKML , Dan Streetman , Vivek Goyal Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Thank you for the clarification Bjorn! I was on vacation..sorry for my delay. Closing the loop here, I understand we're not getting this patch merged (due to its restriction to domain 0) and there was a suggestion in the thread of trying to block MSIs from the IOMMU init code (which also have the restriction of only working in iommu-enabled systems). Hope the thread is helpful and if somebody faces this issue, can comment here and at least find this approach, maybe test the patch. Thanks to all involved!