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From: Gerd Hoffmann <kraxel@redhat.com>
Date: Wed, 12 Jul 2017 07:51:46 +0200
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Subject: Re: [Qemu-devel] change x86 default machine type to Q35?
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To: Kevin Wolf <kwolf@redhat.com>
Cc: "Tian, Kevin" <kevin.tian@intel.com>, Eduardo Habkost <ehabkost@redhat.com>, "Michael S. Tsirkin" <mst@redhat.com>, libvir-list@redhat.com, Thomas Huth <thuth@redhat.com>, qemu-devel@nongnu.org, Chao Peng <chao.p.peng@linux.intel.com>, Marcel Apfelbaum <marcel@redhat.com>, Paolo Bonzini <pbonzini@redhat.com>, Laszlo Ersek <lersek@redhat.com>

  Hi,

> > I think simply not having a default
> > machine type (as already suggested elsewhere in this thread) is the
> > best way to deal with this.
> 
> I would absolutely hate this. One of the nice things about qemu has
> always been that 'qemu disk.img' is enough to start a simple VM.

Well, not really.  There is no "qemu" any more, and there are other
defaults like default memory size which need tweaks, so the minimum
command line isn't that short any more and looks more like this:

    qemu-system-x86_64 -enable-kvm -m 1G disk.img

cheers,
  Gerd