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 Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 26237C43217 for ; Mon, 7 Mar 2022 15:29:32 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id F034B10E027; Mon, 7 Mar 2022 15:29:30 +0000 (UTC) Received: from mga09.intel.com (mga09.intel.com [134.134.136.24]) by gabe.freedesktop.org (Postfix) with ESMTPS id 8EA4B10E027; Mon, 7 Mar 2022 15:29:29 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1646666969; x=1678202969; h=message-id:date:mime-version:to:cc:references:from: subject:in-reply-to:content-transfer-encoding; bh=+Ryh1cggbQNBN3ci8CirZd3kAvv6BbXwKIEkPSgvYgY=; b=JMxTF1fSCVM8W57maYuXQGwAw1E8Godzt4FHpwgklmGDsgDWWtvFpSwG adYr9f76bUJXWs8XNCtfWqohPB4glgULKg+h4ln0WkdSitUlUO/cygBOQ EBkDGhy6QpvZZR/y0Zs2IL3mqd0XIEqf8ZpIGx7S+LSE9+uTVHrb9OCnI ZezShSjTIukEEWy/cKk/wPsjP2jYlYcAaLdkw7sm7qxdbTcYJOYeCjkg6 Qfd3r701DeheGHzAkTZgnhxRdBt2qX3pDkLlyvkzzkv2Ir+WMiU6BxWiF fhsi7p0SPe6edFVkx85MUM3kR+O70q1VZt6WNX+7xtZlaggcLi7MyAfXi w==; X-IronPort-AV: E=McAfee;i="6200,9189,10279"; a="254145141" X-IronPort-AV: E=Sophos;i="5.90,162,1643702400"; d="scan'208";a="254145141" Received: from orsmga004.jf.intel.com ([10.7.209.38]) by orsmga102.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 07 Mar 2022 07:29:28 -0800 X-IronPort-AV: E=Sophos;i="5.90,162,1643702400"; d="scan'208";a="643281164" Received: from mshipman-mobl5.amr.corp.intel.com (HELO [10.251.12.40]) ([10.251.12.40]) by orsmga004-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 07 Mar 2022 07:29:28 -0800 Message-ID: <3c974f25-ece6-102b-01c3-bd7e6274f613@intel.com> Date: Mon, 7 Mar 2022 07:29:22 -0800 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:91.0) Gecko/20100101 Thunderbird/91.5.0 Content-Language: en-US To: Jarkko Sakkinen References: <20220306032655.97863-1-jarkko@kernel.org> <20220306152456.2649b1c56da2a4ce4f487be4@linux-foundation.org> From: Dave Hansen Subject: Re: [PATCH RFC v2] mm: Add f_ops->populate() In-Reply-To: Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: codalist@telemann.coda.cs.cmu.edu, jaharkes@cs.cmu.edu, Nathaniel McCallum , linux-unionfs@vger.kernel.org, intel-gfx@lists.freedesktop.org, Dave Hansen , linux-mips@vger.kernel.org, dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org, linux-fsdevel@vger.kernel.org, Andrew Morton , Reinette Chatre , linux-sgx@vger.kernel.org Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" On 3/7/22 03:27, Jarkko Sakkinen wrote: > But e.g. in __mm_populate() anything with (VM_IO | VM_PFNMAP) gets > filtered out and never reach that function. > > I don't know unorthodox that'd be but could we perhaps have a VM > flag for SGX? SGX only works on a subset of the chips from one vendor on one architecture. That doesn't seem worth burning a VM flag.