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=-5.6 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_PASS,USER_AGENT_MUTT 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 9694BC282C3 for ; Thu, 24 Jan 2019 18:34:23 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 5D89B218A6 for ; Thu, 24 Jan 2019 18:34:23 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=kroah.com header.i=@kroah.com header.b="mH/cWLFy"; dkim=pass (2048-bit key) header.d=messagingengine.com header.i=@messagingengine.com header.b="fTeXr4U6" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1725951AbfAXSeW (ORCPT ); Thu, 24 Jan 2019 13:34:22 -0500 Received: from new3-smtp.messagingengine.com ([66.111.4.229]:53847 "EHLO new3-smtp.messagingengine.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725924AbfAXSeW (ORCPT ); Thu, 24 Jan 2019 13:34:22 -0500 Received: from compute6.internal (compute6.nyi.internal [10.202.2.46]) by mailnew.nyi.internal (Postfix) with ESMTP id 9D8D817C9E; Thu, 24 Jan 2019 13:34:21 -0500 (EST) Received: from mailfrontend2 ([10.202.2.163]) by compute6.internal (MEProxy); Thu, 24 Jan 2019 13:34:21 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kroah.com; h= date:from:to:cc:subject:message-id:references:mime-version :content-type:in-reply-to; s=fm2; bh=1/OZI101m+PDkc03QKEbIcHiy8r UK8fqeUWnIqOxB9U=; b=mH/cWLFyEvsUHNKLRHzXaBeXmu3UQDB82WN08ZUYami JtV9iBSBeGE0HX1KCUFbgC8Ili1tSsX3Y1RWLtcQYLbb6LM+VMzc5hEC2Z0yN8Sa S8a5+PFZ+YvvGrR7I7Qk10W2qnocxneJQ1L8QpKdxWd3NjuesuCTst8VJncpLYkI V46M4H04pfsKzCef8npBbuiwaMgjNyzx98cG2r3KZgSd4PM1LMsrY+/tDaOBo+Bi cB/gavO8MzduCeodmzKipU+lgwjkkCzuZ3AvccWo9EV22R7l72vyqAbrM0om8qbh eVUvGNwXz23cTuKPpfQsPblgDnEfMGL6Dstq4CIlIXA== DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d= messagingengine.com; h=cc:content-type:date:from:in-reply-to :message-id:mime-version:references:subject:to:x-me-proxy :x-me-proxy:x-me-sender:x-me-sender:x-sasl-enc; s=fm1; bh=1/OZI1 01m+PDkc03QKEbIcHiy8rUK8fqeUWnIqOxB9U=; b=fTeXr4U68ziwnNhWWRvObJ PO7Y6f0AuvJfS7wrjOnzeWPaRVrGOb9ssvQa7RYCvX5Rvww9JrXmYF7Uk2N/CsBi mzSgTqPy7yMK1xuA1MMqvdK84OGU3OBAAjnZW7DHjvDpBgiN+fP9GEUvbMHWFStM Zd5HCTAWCvQRX1MWR1lRgoeiBd5HuNKK3bK/IBCh7zgC/eFbsEfcUQEslZ6oz1+D r8afntAtC0eqVOLo8DQFOiFD1iPoCzbEnyZH5StwSl9Ytc8PvOW6eRIRWaBmvD68 wp+mzYiTG4c9ybBT89Ce6BvqysTbqBIH/T0y3jHHk0H25aZAtUiYxup4BnyBAVWQ == X-ME-Sender: X-ME-Proxy-Cause: gggruggvucftvghtrhhoucdtuddrgedtledriedvgdduudefucetufdoteggodetrfdotf fvucfrrhhofhhilhgvmecuhfgrshhtofgrihhlpdfquhhtnecuuegrihhlohhuthemucef tddtnecusecvtfgvtghiphhivghnthhsucdlqddutddtmdenogfuphgrmhfkphculdeftd dtmdenucfjughrpeffhffvuffkfhggtggujggfsehttdertddtredvnecuhfhrohhmpefi rhgvghcumffjuceoghhrvghgsehkrhhorghhrdgtohhmqeenucfkphepkeefrdekiedrke elrddutdejnecurfgrrhgrmhepmhgrihhlfhhrohhmpehgrhgvgheskhhrohgrhhdrtgho mhenucevlhhushhtvghrufhiiigvpedt X-ME-Proxy: Received: from localhost (5356596b.cm-6-7b.dynamic.ziggo.nl [83.86.89.107]) by mail.messagingengine.com (Postfix) with ESMTPA id 52C3B10106; Thu, 24 Jan 2019 13:34:20 -0500 (EST) Date: Thu, 24 Jan 2019 19:34:19 +0100 From: Greg KH To: Zhenyu Wang Cc: stable@vger.kernel.org, "Monroy, Rodrigo Axel" , "Orrala Contreras, Alfredo" , Hang Yuan Subject: Re: [PATCH 4.14 backport] drm/i915/gvt: Fix mmap range check Message-ID: <20190124183419.GA23507@kroah.com> References: <20190122021501.25856-1-zhenyuw@linux.intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20190122021501.25856-1-zhenyuw@linux.intel.com> User-Agent: Mutt/1.11.2 (2019-01-07) Sender: stable-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org On Tue, Jan 22, 2019 at 10:15:01AM +0800, Zhenyu Wang wrote: > This is to fix missed mmap range check on vGPU bar2 region > and only allow to map vGPU allocated GMADDR range, which means > user space should support sparse mmap to get proper offset for > mmap vGPU aperture. And this takes care of actual pgoff in mmap > request as original code always does from beginning of vGPU > aperture. > > Fixes: 659643f7d814 ("drm/i915/gvt/kvmgt: add vfio/mdev support to KVMGT") > Cc: "Monroy, Rodrigo Axel" > Cc: "Orrala Contreras, Alfredo" > Cc: stable@vger.kernel.org # v4.10+ > Reviewed-by: Hang Yuan > Signed-off-by: Zhenyu Wang > --- > Note: This is backported version of upstream > commit 51b00d8509dc ("drm/i915/gvt: Fix mmap range check") for 4.14.x stable. Now applied, thanks. greg k-h