Received: by 2002:ad5:474a:0:0:0:0:0 with SMTP id i10csp490476imu; Wed, 9 Jan 2019 01:03:20 -0800 (PST) X-Google-Smtp-Source: ALg8bN7vdTC8Rp5YpelFM66QKDSRi8LewKEO/+rv+NhMS7IlJf8A3noSKRMLoVlfdeECNXgzhzOh X-Received: by 2002:a63:451a:: with SMTP id s26mr4703917pga.150.1547024600558; Wed, 09 Jan 2019 01:03:20 -0800 (PST) ARC-Seal: i=1; a=rsa-sha256; t=1547024600; cv=none; d=google.com; s=arc-20160816; b=NxoZHPJsA+/8GEOTMF8fzOtnCvHJDRXkUPDCD1Cj/4h1AzUnATz+hgwEq0CkxMZz4T Vta+BOC7MP/lBKyZy0lCVGXvqn8Py++ANpLs9GeO3DUrZ3AELHsnIwOpMxGTSLXY+gFX k3q4Q8UM3npzpDYv7T1ykdfzXTS3XXdhUpqYe/xJTY70z2WxO5ao/mcFCDy9XUrEIjrl j60+NAdHoUEgM9SbUoDE0KCH117/xIkN8E3GmsPVJRQKCI+X9MXL1iIbAK1PPCWinJvb SFO1ejgb82Lp35GPvngs5ISBHdoOYCHfHo5EHJwYQU9fxMFtQRj61NS5MRBtZkSoN4ll D4/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=wXBntpWP4Ehu/tSdWbAYelfLEwsXWWsXDhYBFyUtnV0=; b=E69XGhgBPHbLncBd5KfCjc+llfraa3lVGLMoBiNrlleAW4wBWb+Br+9StFHcBJZc74 IJvxlVVSU5NcUGwhxV3pU1NqJe2mQNBgLNhPKOxNg2pUw4UVd23dFwW/EGLagt4eyMyB jvB2z4YouWEsp5CLm3fo0kVt2+/MzZ5prTVvCjLQHUxJGkYMQqO+xzn3Ifanp1/uV9cV usrS43ru/+Hk3T2QvO9/CdKjmBh0duGJNm1jOfY+fABLAUE/+QJ4R8xhUA0QaScvyxO7 Hl5H/VVekzIyPy7LbmeyXr4n7tWIc35xNSaSl/HibszatkPnx+EPabdsMxQ8EZenlGbK kl4Q== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@kernel.org header.s=default header.b="GFF7V/Z8"; 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 b8si67013292plx.383.2019.01.09.01.03.05; Wed, 09 Jan 2019 01:03:20 -0800 (PST) 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=pass header.i=@kernel.org header.s=default header.b="GFF7V/Z8"; 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 S1729822AbfAIIbM (ORCPT + 99 others); Wed, 9 Jan 2019 03:31:12 -0500 Received: from mail.kernel.org ([198.145.29.99]:43744 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729141AbfAIIbM (ORCPT ); Wed, 9 Jan 2019 03:31:12 -0500 Received: from localhost (5356596B.cm-6-7b.dynamic.ziggo.nl [83.86.89.107]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 61FE220821; Wed, 9 Jan 2019 08:31:11 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1547022671; bh=HZnZ0MPUP117Czzg6MB2ETn5M0DJbPYIPT8d5NLZq6g=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=GFF7V/Z8oVW2Btv3pLNUbbBP4u+X0fKYVkToOoVFYFlv400jzOBaR5xNMT6gQqCiJ KDIS1oOoAStavcjSPYrTi99jxkXsSvlnYVeRK48nXXMu6ez6MFrjlJ9wEaZrHpxZg0 Zp35MEdZXv87+gsjBCXRPLE4mz8SF64gQQpiG0R0= Date: Wed, 9 Jan 2019 09:31:09 +0100 From: Greg KH To: rkir@google.com Cc: linux-kernel@vger.kernel.org Subject: Re: [PATCH v3 2/3] drivers: platform: goldfish: goldfish_address_space: add a driver Message-ID: <20190109083109.GA24501@kroah.com> References: <20190109021112.5836-1-rkir@google.com> <20190109021112.5836-2-rkir@google.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20190109021112.5836-2-rkir@google.com> User-Agent: Mutt/1.11.2 (2019-01-07) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tue, Jan 08, 2019 at 06:11:11PM -0800, rkir@google.com wrote: > From: Roman Kiryanov > > A driver for the Goldfish Android emulator that occupies > address space to use it with the memory sharing device > on the QEMU side. The memory sharding device allocates > subranges and populate them with actual RAM. > This allows sharing host's memory with the guest. > Do you have a pointer to the QEMU commit that matches up with the device that this driver is supposed to be supporting? That would help in trying to review the code to determine exactly what this driver is doing and why the existing memory driver does not work well enough for you (hint, you didn't say why you need this...) thanks, greg k-h