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=-7.0 required=3.0 tests=DKIM_INVALID,DKIM_SIGNED, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING, SPF_HELO_NONE,SPF_PASS,USER_AGENT_SANE_1 autolearn=ham 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 2D4DCC43331 for ; Thu, 5 Sep 2019 16:41:12 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id E34C32067B for ; Thu, 5 Sep 2019 16:41:12 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (1024-bit key) header.d=shipmail.org header.i=@shipmail.org header.b="YRaz4L/H" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2389128AbfIEQlK (ORCPT ); Thu, 5 Sep 2019 12:41:10 -0400 Received: from pio-pvt-msa2.bahnhof.se ([79.136.2.41]:57322 "EHLO pio-pvt-msa2.bahnhof.se" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728601AbfIEQlK (ORCPT ); Thu, 5 Sep 2019 12:41:10 -0400 Received: from localhost (localhost [127.0.0.1]) by pio-pvt-msa2.bahnhof.se (Postfix) with ESMTP id 3CBE9402D7; Thu, 5 Sep 2019 18:41:03 +0200 (CEST) Authentication-Results: pio-pvt-msa2.bahnhof.se; dkim=pass (1024-bit key; unprotected) header.d=shipmail.org header.i=@shipmail.org header.b=YRaz4L/H; dkim-atps=neutral X-Virus-Scanned: Debian amavisd-new at bahnhof.se Received: from pio-pvt-msa2.bahnhof.se ([127.0.0.1]) by localhost (pio-pvt-msa2.bahnhof.se [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id M_JX_DVyuU9R; Thu, 5 Sep 2019 18:41:01 +0200 (CEST) Received: from mail1.shipmail.org (h-205-35.A357.priv.bahnhof.se [155.4.205.35]) (Authenticated sender: mb878879) by pio-pvt-msa2.bahnhof.se (Postfix) with ESMTPA id AEC0A3F3E6; Thu, 5 Sep 2019 18:40:59 +0200 (CEST) Received: from localhost.localdomain (h-205-35.A357.priv.bahnhof.se [155.4.205.35]) by mail1.shipmail.org (Postfix) with ESMTPSA id 455FE360160; Thu, 5 Sep 2019 18:40:59 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=shipmail.org; s=mail; t=1567701659; bh=ayKRPYZ+CmfcKZJe9cQlEdmv7Yf28QhP6pPc0p/MAdo=; h=Subject:To:Cc:References:From:Date:In-Reply-To:From; b=YRaz4L/H+NNuyFpurOwnxOfHXmulBAkLeXmItetqYzC4E7rqKx8k0Uw/t3SKSD1pL ZsUvgpEG5ZbTfCmjnH5Q35hAsqPbYLh+e7fqHf55bmYxDHNj9SJ3a30I4G/hmRK21P lzI6GdGknYhzyoH/q0GuT2tG/IKXRpB7fZk0uqOw= Subject: Re: [RFC PATCH 1/2] x86: Don't let pgprot_modify() change the page encryption bit To: Christoph Hellwig Cc: Dave Hansen , linux-kernel@vger.kernel.org, x86@kernel.org, pv-drivers@vmware.com, Thomas Hellstrom , Dave Hansen , Andy Lutomirski , Peter Zijlstra , Thomas Gleixner , Ingo Molnar , Borislav Petkov , "H. Peter Anvin" , =?UTF-8?Q?Christian_K=c3=b6nig?= , Marek Szyprowski , Tom Lendacky References: <20190905103541.4161-1-thomas_os@shipmail.org> <20190905103541.4161-2-thomas_os@shipmail.org> <608bbec6-448e-f9d5-b29a-1984225eb078@intel.com> <20190905152438.GA18286@infradead.org> From: =?UTF-8?Q?Thomas_Hellstr=c3=b6m_=28VMware=29?= Organization: VMware Inc. Message-ID: <86b48953-69a2-c211-2b48-b796c07426bc@shipmail.org> Date: Thu, 5 Sep 2019 18:40:59 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.6.1 MIME-Version: 1.0 In-Reply-To: <20190905152438.GA18286@infradead.org> Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 8bit Content-Language: en-US Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 9/5/19 5:24 PM, Christoph Hellwig wrote: > On Thu, Sep 05, 2019 at 05:21:24PM +0200, Thomas Hellström (VMware) wrote: >> On 9/5/19 4:15 PM, Dave Hansen wrote: >>> Hi Thomas, >>> >>> Thanks for the second batch of patches! These look much improved on all >>> fronts. >> Yes, although the TTM functionality isn't in yet. Hopefully we won't have to >> bother you with those though, since this assumes TTM will be using the dma >> API. > Please take a look at dma_mmap_prepare and dma_mmap_fault in this > branch: > > http://git.infradead.org/users/hch/misc.git/shortlog/refs/heads/dma-mmap-improvements > > they should allow to fault dma api pages in the page fault handler. But > this is totally hot off the press and not actually tested for the last > few patches. Note that I've also included your two patches from this > series to handle SEV. Thanks, Christoph. I'll get to this tomorrow. /Thomas