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=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, SIGNED_OFF_BY,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 BCD85C38A2A for ; Fri, 8 May 2020 18:39:08 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 96D562173E for ; Fri, 8 May 2020 18:39:08 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b="WiGbvW0T" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727095AbgEHSjH (ORCPT ); Fri, 8 May 2020 14:39:07 -0400 Received: from us-smtp-1.mimecast.com ([207.211.31.81]:50359 "EHLO us-smtp-delivery-1.mimecast.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1726756AbgEHSjH (ORCPT ); Fri, 8 May 2020 14:39:07 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1588963146; 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=QXBRgjOwY+dvVSQ4b8KNQAdFl7K/2dDkBF+n7DPUAd0=; b=WiGbvW0TvJ6dluOdscrBrtG2f3+Riy0AQPpI/7iX8F16sItwh2aGu9eeZKCQSEv0R8jz7P 347IpP9eKcj2Bo3sBlJbnd87H47p/tQx7wdQKe2ec+BGA4zHAGJzMgdb21A2VNFRDqcZyX RUs8kXC+2oWv5mFWDJJWO8aJ3m3fP7I= Received: from mail-qt1-f197.google.com (mail-qt1-f197.google.com [209.85.160.197]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-323-EW0JgO7pP1WJc6dJSdfcYw-1; Fri, 08 May 2020 14:39:04 -0400 X-MC-Unique: EW0JgO7pP1WJc6dJSdfcYw-1 Received: by mail-qt1-f197.google.com with SMTP id n22so2913851qtp.15 for ; Fri, 08 May 2020 11:39:04 -0700 (PDT) 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=QXBRgjOwY+dvVSQ4b8KNQAdFl7K/2dDkBF+n7DPUAd0=; b=fTqS7AxLG9CJ0oQnbz2xp5hjfEf/x9NfGntuDR2fONMdZk0CKJA2nGVVcIStwW7TFJ Sy8NWbhd51s5jDzgFtbwBEG1+XHXEhsT7K0/U+0WfoGTKcBggkpsx3/sW28WWC6VZzRG cl3zMFiBiuBIk/J2JWyCP439JGekOQteoWB7pa84EmclOWyaVKrRYGx3ZtiUi0J8aRCt jERUC/eVR/yOVrnzZCUKlncMuJ8jjrDlEefKqqUpN2Ih3ZzLpmwRhz/9xTRLTZQOcs06 M8lNTCVechCyIk2sDuRVqkMAoPVAWGxeGTqJ7+l5rbH4HluWzCDaOX9zNo8YdLEZgRBZ 4kig== X-Gm-Message-State: AGi0PuYgkYfX2rXSjuUwzjX0Rndi+01fGQFRmWIUMiSB5vxEmc8PdkCe FF+N8X945PbWxIaTdanua8ZloA8yPY10XATLXIQzlx9idKxo8QYjNRu0QQloZMKGMQOfUbXCpIV omn8v6hmZmKA20IWkc0gk9DV1 X-Received: by 2002:a37:8186:: with SMTP id c128mr4175549qkd.455.1588963143839; Fri, 08 May 2020 11:39:03 -0700 (PDT) X-Google-Smtp-Source: APiQypLAr9Bm1koeUWkBXdivXMQD24n6jI17gBz0LpLaBEJYM0Mlc3/QNdh4XtLoIYudJtbnYdNUSQ== X-Received: by 2002:a37:8186:: with SMTP id c128mr4175527qkd.455.1588963143546; Fri, 08 May 2020 11:39:03 -0700 (PDT) Received: from xz-x1 ([2607:9880:19c0:32::2]) by smtp.gmail.com with ESMTPSA id i4sm1719360qkh.66.2020.05.08.11.39.02 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 08 May 2020 11:39:02 -0700 (PDT) Date: Fri, 8 May 2020 14:39:01 -0400 From: Peter Xu To: Alex Williamson Cc: kvm@vger.kernel.org, linux-kernel@vger.kernel.org, cohuck@redhat.com, jgg@ziepe.ca Subject: Re: [PATCH v2 1/3] vfio/type1: Support faulting PFNMAP vmas Message-ID: <20200508183901.GC228260@xz-x1> References: <158871401328.15589.17598154478222071285.stgit@gimli.home> <158871568480.15589.17339878308143043906.stgit@gimli.home> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline In-Reply-To: <158871568480.15589.17339878308143043906.stgit@gimli.home> Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tue, May 05, 2020 at 03:54:44PM -0600, Alex Williamson wrote: > With conversion to follow_pfn(), DMA mapping a PFNMAP range depends on > the range being faulted into the vma. Add support to manually provide > that, in the same way as done on KVM with hva_to_pfn_remapped(). > > Signed-off-by: Alex Williamson And since after the discussion... Reviewed-by: Peter Xu Thanks, -- Peter Xu