From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:48705) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1bhHPf-0001Ac-Tp for qemu-devel@nongnu.org; Tue, 06 Sep 2016 10:31:52 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1bhHPa-00071Q-4E for qemu-devel@nongnu.org; Tue, 06 Sep 2016 10:31:46 -0400 Received: from mga03.intel.com ([134.134.136.65]:28198) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1bhHPZ-00071M-Uj for qemu-devel@nongnu.org; Tue, 06 Sep 2016 10:31:42 -0400 Message-ID: <1473172295.4674.25.camel@linux.intel.com> From: Chao Peng Date: Tue, 06 Sep 2016 22:31:35 +0800 In-Reply-To: <5fd6c789-4524-0254-6f18-2ec330acec61@redhat.com> References: <1472120105-29235-1-git-send-email-chao.p.peng@linux.intel.com> <1473158937.4143.15.camel@linux.intel.com> <5fd6c789-4524-0254-6f18-2ec330acec61@redhat.com> Content-Type: text/plain; charset="UTF-8" Mime-Version: 1.0 Content-Transfer-Encoding: 8bit Subject: Re: [Qemu-devel] [RFC PATCH v2 00/12] Guest startup time optimization List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Paolo Bonzini , qemu-devel@nongnu.org Cc: Haozhong Zhang , Xiao Guangrong , Eduardo Habkost , "Michael S. Tsirkin" , gor Mammedov , Amnon Ilan , Richard Henderson > > > 2) Linux optimizations: using an uncompressed image to avoid the > > > cost of copying and decompressing.  QEMU can already load the > > > image > > > at the right place and the real mode stub can do little more than > > > GDT/IDT setup. > > > > This works surely. I actually followed your suggestion in v1 to > > make > > kernel multiboot-compatible and then load that kernel in QEMU > > directly > > Please try posting the multiboot patches to the upstream x86 Linux > mailing list.  I am very interested in them, because I think it's the > simplest way to compare qboot with direct kernel load.  And as you > say, > it might make patch 11 a little smaller and possibly more acceptable. > OK, I will do that (and to see their feedbacks). Thanks, Chao