From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757380AbaE2Mur (ORCPT ); Thu, 29 May 2014 08:50:47 -0400 Received: from mail.skyhub.de ([78.46.96.112]:41830 "EHLO mail.skyhub.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755646AbaE2Muq (ORCPT ); Thu, 29 May 2014 08:50:46 -0400 Date: Thu, 29 May 2014 14:50:38 +0200 From: Borislav Petkov To: Vivek Goyal Cc: Dave Young , matt.fleming@intel.com, linux-kernel@vger.kernel.org, linux-efi@vger.kernel.org Subject: Re: [PATCH] export efi.flags to sysfs Message-ID: <20140529125038.GC21718@pd.tnic> References: <20140526083935.GA19682@dhcp-16-198.nay.redhat.com> <20140527133411.GG10994@redhat.com> <20140528021359.GC2820@darkstar.nay.redhat.com> <20140528124029.GF14863@redhat.com> <20140529020837.GB2068@darkstar.nay.redhat.com> <20140529124520.GC14570@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline In-Reply-To: <20140529124520.GC14570@redhat.com> User-Agent: Mutt/1.5.23 (2014-03-12) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Thu, May 29, 2014 at 08:45:20AM -0400, Vivek Goyal wrote: > I am curious that what's the meaning of 1:1 mapping here? So far I > thought that means virt and physical addresses are same but that does > not seem to be the case. So what does it mean? 1:1 mapping in the EFI's case (and maybe in any other case I'm aware of) is taking the physical addresses of the EFI regions and mapping them at the exact same addresses in the EFI page table. -- Regards/Gruss, Boris. Sent from a fat crate under my desk. Formatting is fine. --