From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753495Ab3LMUFI (ORCPT ); Fri, 13 Dec 2013 15:05:08 -0500 Received: from mail.skyhub.de ([78.46.96.112]:52911 "EHLO mail.skyhub.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753118Ab3LMUFG (ORCPT ); Fri, 13 Dec 2013 15:05:06 -0500 Date: Fri, 13 Dec 2013 21:04:55 +0100 From: Borislav Petkov To: Dave Young Cc: linux-kernel@vger.kernel.org, linux-efi@vger.kernel.org, x86@kernel.org, mjg59@srcf.ucam.org, hpa@zytor.com, James.Bottomley@HansenPartnership.com, vgoyal@redhat.com, ebiederm@xmission.com, horms@verge.net.au, kexec@lists.infradead.org, greg@kroah.com, matt@console-pimps.org, toshi.kani@hp.com Subject: Re: [PATCH v5 13/14] x86: reserve setup_data ranges late after parsing memmap cmdline Message-ID: <20131213200455.GB12466@pd.tnic> References: <1386582147-9802-1-git-send-email-dyoung@redhat.com> <1386582147-9802-14-git-send-email-dyoung@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline In-Reply-To: <1386582147-9802-14-git-send-email-dyoung@redhat.com> User-Agent: Mutt/1.5.21 (2010-09-15) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Mon, Dec 09, 2013 at 05:42:26PM +0800, Dave Young wrote: > Currently e820_reserve_setup_data is called before parsing early params, > it works in normal case. But for memmap=exactmap, the final memory ranges > are created after parsing memmap= cmdline params, so the previous > e820_reserve_setup_data has no effect. For example, setup_data ranges > will still be marked as normal system ram, thus when later sysfs driver > ioremap them kernel will warn about mapping normal ram. > > This patch fix it by moving the e820_reserve_setup_data callback after > parsing early params so they can be set as reserved ranges and later > ioremap will be fine with it. > > changes: > Boris: improve patch description > > Signed-off-by: Dave Young Acked-by: Borislav Petkov -- Regards/Gruss, Boris. Sent from a fat crate under my desk. Formatting is fine. --