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From: Paolo Bonzini <pbonzini@redhat.com>
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Date: Fri, 1 Apr 2016 10:51:31 +0200
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Subject: Re: [Qemu-devel] Why is SeaBIOS used with -kernel?
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To: "Richard W.M. Jones" <rjones@redhat.com>
Cc: marc.mari.barcelo@gmail.com, Stefan Hajnoczi <stefanha@gmail.com>, Kevin O'Connor <kevin@koconnor.net>, qemu-devel@nongnu.org



On 01/04/2016 10:47, Richard W.M. Jones wrote:
> It's so we can handle error reports.  When someone reports that
> libguestfs "hangs", it's sometimes useful to know if the BIOS was
> entered or not, since it points the finger at either qemu, BIOS or
> kernel.  (Remember we have to be able to run on a whole variety of
> Linux distros which often have old/broken/random qemu/bios/kernel).

Sure, but that can be an extra option if sgabios adds overhead.

Anyhow, you probably want "-vga none" too.

Paolo