From mboxrd@z Thu Jan 1 00:00:00 1970 From: Borislav Petkov Subject: Re: [PATCH v5 13/14] x86: reserve setup_data ranges late after parsing memmap cmdline Date: Fri, 13 Dec 2013 21:04:55 +0100 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 Return-path: Content-Disposition: inline In-Reply-To: <1386582147-9802-14-git-send-email-dyoung-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org> Sender: linux-efi-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: Dave Young Cc: linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-efi-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, x86-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org, mjg59-1xO5oi07KQx4cg9Nei1l7Q@public.gmane.org, hpa-YMNOUZJC4hwAvxtiuMwx3w@public.gmane.org, James.Bottomley-d9PhHud1JfjCXq6kfMZ53/egYHeGw8Jk@public.gmane.org, vgoyal-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org, ebiederm-aS9lmoZGLiVWk0Htik3J/w@public.gmane.org, horms-/R6kz+dDXgpPR4JQBCEnsQ@public.gmane.org, kexec-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org, greg-U8xfFu+wG4EAvxtiuMwx3w@public.gmane.org, matt-HNK1S37rvNbeXh+fF434Mdi2O/JbrIOy@public.gmane.org, toshi.kani-VXdhtT5mjnY@public.gmane.org List-Id: linux-efi@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. --