From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from psmtp.com (na3sys010amx103.postini.com [74.125.245.103]) by kanga.kvack.org (Postfix) with SMTP id 1CD706B0005 for ; Wed, 3 Apr 2013 21:32:31 -0400 (EDT) Message-ID: <515CD81D.6020603@zytor.com> Date: Wed, 03 Apr 2013 18:32:13 -0700 From: "H. Peter Anvin" MIME-Version: 1.0 Subject: Re: [PATCH] x86: add phys addr validity check for /dev/mem mmap References: <1364905733-23937-1-git-send-email-fhrbata@redhat.com> <515B2802.1050405@zytor.com> <515CD359.40004@gmail.com> <515CD3BF.5010104@zytor.com> <515CD4A7.6070903@gmail.com> In-Reply-To: <515CD4A7.6070903@gmail.com> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Sender: owner-linux-mm@kvack.org List-ID: To: Simon Jeons Cc: Frantisek Hrbata , linux-kernel@vger.kernel.org, linux-mm@kvack.org, tglx@linutronix.de, mingo@redhat.com, x86@kernel.org, oleg@redhat.com, kamaleshb@in.ibm.com, hechjie@cn.ibm.com On 04/03/2013 06:17 PM, Simon Jeons wrote: > > e820 also contain mmio, correct? No. > So cpu should not access address beyond > e820 map(RAM+MMIO). No. -hpa -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org