From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Daniel P. Berrange" Subject: Re: [Qemu-devel] Announcing qboot, a minimal x86 firmware for QEMU Date: Fri, 22 May 2015 12:12:59 +0100 Message-ID: <20150522111259.GG14428@redhat.com> References: <555DE2EF.1000509@redhat.com> <20150522110136.GF14428@redhat.com> Reply-To: "Daniel P. Berrange" Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Cc: Paolo Bonzini , qemu-devel , KVM list To: Peter Maydell Return-path: Received: from mx1.redhat.com ([209.132.183.28]:38607 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756609AbbEVLNH (ORCPT ); Fri, 22 May 2015 07:13:07 -0400 Content-Disposition: inline In-Reply-To: Sender: kvm-owner@vger.kernel.org List-ID: On Fri, May 22, 2015 at 12:04:54PM +0100, Peter Maydell wrote: > On 22 May 2015 at 12:01, Daniel P. Berrange wrote: > > On the QEMU side of things I wonder if there is scope for taking AArch64's > > 'virt' machine type concept and duplicating it on all architectures. > > Experience suggests that holding the line on "minimal" is really > quite tricky, though -- there's always one more thing that > somebody really wants to add... Yep, it is hard saying no - but I'd think as long as it was possible to add the extra features using -device, it ought to be practical to keep a "virt" machine types "-nodefaults -nodefconfig" base setup pretty minimal. In particular I don't see why we need to have a SATA controller and ISA/LPC bridge in every virt machine - root PCI bus only should be possible, as you can provide disks via virtio-blk or virtio-scsi and serial, parallel, mouse, floppy via PCI devices and/or by adding a USB bus in the cases where you really need one. Regards, Daniel -- |: http://berrange.com -o- http://www.flickr.com/photos/dberrange/ :| |: http://libvirt.org -o- http://virt-manager.org :| |: http://autobuild.org -o- http://search.cpan.org/~danberr/ :| |: http://entangle-photo.org -o- http://live.gnome.org/gtk-vnc :|