From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:51885) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1am4Xf-0002u8-Vx for qemu-devel@nongnu.org; Fri, 01 Apr 2016 15:15:37 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1am4Xb-0007mW-VP for qemu-devel@nongnu.org; Fri, 01 Apr 2016 15:15:35 -0400 Received: from mx1.redhat.com ([209.132.183.28]:46810) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1am4Xb-0007mP-Q5 for qemu-devel@nongnu.org; Fri, 01 Apr 2016 15:15:31 -0400 Date: Fri, 1 Apr 2016 20:15:29 +0100 From: "Richard W.M. Jones" Message-ID: <20160401191529.GG19398@redhat.com> References: <20160401101733.GI32728@redhat.com> <1459508875.7011.62.camel@redhat.com> <20160401111139.GK32728@redhat.com> <1459510371.7011.63.camel@redhat.com> <20160401114947.GM32728@redhat.com> <20160401153540.GD25490@morn.lan> <20160401184131.GP32728@redhat.com> <20160401185902.GE19398@redhat.com> <20160401190415.GA13599@morn.lan> <20160401191048.GF19398@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20160401191048.GF19398@redhat.com> Subject: Re: [Qemu-devel] Why is SeaBIOS used with -kernel? List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Kevin O'Connor Cc: marc.mari.barcelo@gmail.com, Paolo Bonzini , Stefan Hajnoczi , Gerd Hoffmann , qemu-devel@nongnu.org On Fri, Apr 01, 2016 at 08:10:48PM +0100, Richard W.M. Jones wrote: > On Fri, Apr 01, 2016 at 03:04:15PM -0400, Kevin O'Connor wrote: > > Otherwise, it doesn't make > > sense that disabling CONFIG_BOOTORDER=n would change the boot time. > > Could it be explained by it avoiding slow access to qemu fw_cfg? Also, disabling CONFIG_BOOTORDER means that CONFIG_BOOT is disabled, since CONFIG_BOOTMENU and CONFIG_BOOTSPLASH were also disabled, and those are the only other things requiring CONFIG_BOOT. Could that explain it? Rich. -- Richard Jones, Virtualization Group, Red Hat http://people.redhat.com/~rjones Read my programming and virtualization blog: http://rwmj.wordpress.com Fedora Windows cross-compiler. Compile Windows programs, test, and build Windows installers. Over 100 libraries supported. http://fedoraproject.org/wiki/MinGW