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=-3.9 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,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 C7B2DC4742C for ; Thu, 5 Nov 2020 23:39:56 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 6EA5E20715 for ; Thu, 5 Nov 2020 23:39:56 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b="fcD/w3de" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1732625AbgKEXjz (ORCPT ); Thu, 5 Nov 2020 18:39:55 -0500 Received: from us-smtp-delivery-124.mimecast.com ([216.205.24.124]:50889 "EHLO us-smtp-delivery-124.mimecast.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1730895AbgKEXjz (ORCPT ); Thu, 5 Nov 2020 18:39:55 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1604619593; 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: in-reply-to:in-reply-to:references:references; bh=iDAyvR5gD4TyJZEtiMBAa4BmrmJW9bifhrNylm9H+Nk=; b=fcD/w3dephaXgphP+qbpJbTDLy8ezn5U/YqL5Bo80rWqQbBLoX90LW19QMjyReVEO0z6Sa R4gxhgrSSuQCjUrc3rvghpFK/I0EMbmUGKgxyKpds123NriYt6lEgmS+tiy1qGVJ1li6+e SIQ0fPPgTXSoTWvTFwfjU3afZC8bQv8= Received: from mail-qv1-f70.google.com (mail-qv1-f70.google.com [209.85.219.70]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-593-oNAw0M3HN_SmrHQ7_g9_tw-1; Thu, 05 Nov 2020 18:39:52 -0500 X-MC-Unique: oNAw0M3HN_SmrHQ7_g9_tw-1 Received: by mail-qv1-f70.google.com with SMTP id z9so1998556qvo.20 for ; Thu, 05 Nov 2020 15:39:52 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:from:to:cc:subject:message-id:references :mime-version:content-disposition:in-reply-to; bh=iDAyvR5gD4TyJZEtiMBAa4BmrmJW9bifhrNylm9H+Nk=; b=TkIns2Y5ulEqLrfYL/NJC12rTE0eduvN9MmMgOpTHsDEdicafq3O/quCWk0l2BAbQU EXly+FrVWD+L2VCwkXBKZwT5wPZx5UGIku9WYyjURMAC70GWAIywPykQvFB5oXhI4a96 xutyEbzszRJFH8Vu03SY4r4BMME4FBFoUTW3IoZ/3tFShkg1C2hOXYMCAnMuqM1BLLuR 01GOfoR+5RqtDAg3ZSXG5ZQjF3Tm5//n7/AfK8/KHkT+z2CvILe6Wvh0jx7dmPdr6619 e28u/j8z7LCzdCjMRTd/4UhmFWfjXVsLc5uvL+FPX2DoHYNYy5xjAi7pc73oOJNxeHtu k8eQ== X-Gm-Message-State: AOAM531xck2gf7vvbaekoPx+5nC543/tMg1/blSvLMBgyToMY6+4XeDZ Dgdo2AXN9CZY8fb6Qkx5KzpD8u43d79ZlwldJjFQSG0YmSk01hl83FFMB/2m/ql3RSlqFYhPf6p zvPMZiYn3TXTj X-Received: by 2002:ad4:40c6:: with SMTP id x6mr4716989qvp.20.1604619591809; Thu, 05 Nov 2020 15:39:51 -0800 (PST) X-Google-Smtp-Source: ABdhPJyXaBVJ1fUmPkbrXwNAai+AE1R0/5hqT+np0zBwOXHL0Ndalaxbbg2psuq6rJtap1TS0YnA1w== X-Received: by 2002:ad4:40c6:: with SMTP id x6mr4716980qvp.20.1604619591661; Thu, 05 Nov 2020 15:39:51 -0800 (PST) Received: from xz-x1 (bras-vprn-toroon474qw-lp130-20-174-93-89-196.dsl.bell.ca. [174.93.89.196]) by smtp.gmail.com with ESMTPSA id p77sm2154612qke.39.2020.11.05.15.39.50 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 05 Nov 2020 15:39:50 -0800 (PST) Date: Thu, 5 Nov 2020 18:39:49 -0500 From: Peter Xu To: Jason Gunthorpe Cc: Cornelia Huck , kvm@vger.kernel.org, Tom Lendacky , Alex Williamson Subject: Re: [PATCH] vfio-pci: Use io_remap_pfn_range() for PCI IO memory Message-ID: <20201105233949.GA138364@xz-x1> References: <0-v1-331b76591255+552-vfio_sme_jgg@nvidia.com> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline In-Reply-To: <0-v1-331b76591255+552-vfio_sme_jgg@nvidia.com> Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org On Thu, Nov 05, 2020 at 12:34:58PM -0400, Jason Gunthorpe wrote: > Tom says VFIO device assignment works OK with KVM, so I expect only things > like DPDK to be broken. Is there more information on why the difference? Thanks, -- Peter Xu