Received: by 2002:a25:c593:0:0:0:0:0 with SMTP id v141csp789400ybe; Thu, 5 Sep 2019 06:05:25 -0700 (PDT) X-Google-Smtp-Source: APXvYqzt2eNwxFyo2FQJLBTZ70v9UASAVqIxjpsva2fRIRiE6eJyCD575dYQOgAVy8I8OjlQBuQo X-Received: by 2002:a17:902:a506:: with SMTP id s6mr3350089plq.232.1567688725238; Thu, 05 Sep 2019 06:05:25 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1567688725; cv=none; d=google.com; s=arc-20160816; b=wpnFDLVlB2Mw3kiL2J0hu+iQk/L/xcZvGho5TA1Fexa0ddB7GyLA2GDC3fTltvhntV XUaRhWN9lmCZi4tqSesQupch06v4QgxtNy3msF1C8rnj4vR+DLHjc1jX2LBk54Ep0n08 wnkTg4/xUECLk3S8t88VXUEGzWJTB/agolMwaym4epcHg0zaDl7ciOnmYPxHdeBVEggu PsHYKX+w2/OiEVGxATmCm3k58iXYZF7BGNa+qqK/PkAyPqHwKnQw0CKis7uak3i1zYah cn6VeF0nzOiBD6G7TtPT1EAtv6UsfH8bZHx/HJa7spzz0CrbLZr7oCekK8Uz3x0tBd9N ZX/Q== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:user-agent:in-reply-to :content-disposition:mime-version:references:message-id:subject:cc :to:from:date:dkim-signature; bh=PrAw50ixKSQuGfujeGIi6zkEgaRXZ1hem0CBif3BOwI=; b=Klb3LOFVPNkxtNyqh7lJ37VkWaS1CUpQuQlHci204a0HDv7ZpXn+0vf1iz/NESGwmN zvtnB/dDz2egfm8evHCSUqm1pWI7dBlIpuSVdUHx+lgeHFxALx/AAEcNFrNdGGrnE+/d tI691Vopz470KEDDPDtdqBK1qYf9e9AsrFqLEjwUpeZgFTBh70McQqh9nPOEZFDTw4uD 2LHhHeRpckGe0d1K0LbaGILFfNEjmZSSBO30f7k4CJ8sTrUInb/SUDjOapVB/JB12vZp 58+DwQtHMWtT0I47vApPCAzq7CobDCHnwo9h4HORN+Gdji09RMiDSReUdvc/kAeN0D/z xe9g== ARC-Authentication-Results: i=1; mx.google.com; dkim=fail header.i=@infradead.org header.s=bombadil.20170209 header.b=h2KbSChF; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Return-Path: Received: from vger.kernel.org (vger.kernel.org. [209.132.180.67]) by mx.google.com with ESMTP id i8si1715004pgs.87.2019.09.05.06.05.09; Thu, 05 Sep 2019 06:05:25 -0700 (PDT) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; dkim=fail header.i=@infradead.org header.s=bombadil.20170209 header.b=h2KbSChF; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1732602AbfIELXP (ORCPT + 99 others); Thu, 5 Sep 2019 07:23:15 -0400 Received: from bombadil.infradead.org ([198.137.202.133]:35904 "EHLO bombadil.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1731814AbfIELXP (ORCPT ); Thu, 5 Sep 2019 07:23:15 -0400 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=bombadil.20170209; h=In-Reply-To:Content-Type:MIME-Version :References:Message-ID:Subject:Cc:To:From:Date:Sender:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Id: List-Help:List-Unsubscribe:List-Subscribe:List-Post:List-Owner:List-Archive; bh=PrAw50ixKSQuGfujeGIi6zkEgaRXZ1hem0CBif3BOwI=; b=h2KbSChFt+NHR8R/SsqtQn1ea Itxe5U6Np40ihDXHVpk06bSo/RETQEFMI/p5R7NnjQxv/RZM2ZmmolWSeg36Z41RWNhHiUqxZc2n/ 2LkQde17hjTwGrNer3IjEarQGVFY4QRGzrg/3tPXNJMCjiv86MrmpvDCSkchB+coc9z3e9dhS7ZAz Ihsp2P5b3Fqn/NKE3pAJFTb8A/WAE2nOV5wXOmdKl0GNLBnixqqaZ1ur7RchrveGXC7ex12idgilv /rB7fURUdMCIy9EisfDLPs3Kv70phfgErDN+pw/vw1m1QjlYzLdeQpXgqEwGBG++tn7o2FNHiQNA3 AbnDQvr8A==; Received: from hch by bombadil.infradead.org with local (Exim 4.92 #3 (Red Hat Linux)) id 1i5pr5-0003SW-8b; Thu, 05 Sep 2019 11:23:11 +0000 Date: Thu, 5 Sep 2019 04:23:11 -0700 From: Christoph Hellwig To: Thomas =?iso-8859-1?Q?Hellstr=F6m_=28VMware=29?= Cc: linux-kernel@vger.kernel.org, x86@kernel.org, pv-drivers@vmware.com, Dave Hansen , Andy Lutomirski , Peter Zijlstra , Thomas Gleixner , Ingo Molnar , Borislav Petkov , "H. Peter Anvin" , Christoph Hellwig , Christian =?iso-8859-1?Q?K=F6nig?= , Marek Szyprowski , Tom Lendacky Subject: Re: [RFC PATCH 0/2] Fix SEV user-space mapping of unencrypted coherent memory Message-ID: <20190905112311.GA10199@infradead.org> References: <20190905103541.4161-1-thomas_os@shipmail.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20190905103541.4161-1-thomas_os@shipmail.org> User-Agent: Mutt/1.11.4 (2019-03-13) X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org. See http://www.infradead.org/rpr.html Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This looks fine from the DMA POV. I'll let the x86 guys comment on the rest.