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From: Paolo Bonzini <pbonzini@redhat.com>
To: "Daniel P. Berrange" <berrange@redhat.com>,
	Gerd Hoffmann <kraxel@redhat.com>
Cc: seabios <seabios@seabios.org>,
	"qemu-devel@nongnu.org" <qemu-devel@nongnu.org>
Subject: Re: [Qemu-devel] seabios serial console vs. sgabios
Date: Thu, 2 Nov 2017 17:13:28 +0100	[thread overview]
Message-ID: <ac6dcd97-c94f-afda-e5cd-ba6542b03bfc@redhat.com> (raw)
In-Reply-To: <20171102161103.GU32533@redhat.com>

On 02/11/2017 17:11, Daniel P. Berrange wrote:
> Historically libvirt will always use '-device sgabios' if the user has
> requested <bios useserial='yes'/>.  So if that -device arg is given, I
> think QEMU must honour it, which implies QEMU must disable Seabios'
> own built-in serial console impl in that scenario.

We should also change libvirt to produce

  -device sga            (if sga supported)
  -machine graphics=off  (if -machine graphics supported)

On old QEMU, -machine graphics=off will be ignored.  On new QEMU and/or
SeaBIOS, we should ensure that specifying both has the right effect.

Paolo

  reply	other threads:[~2017-11-02 16:13 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-11-02 16:04 [Qemu-devel] seabios serial console vs. sgabios Gerd Hoffmann
2017-11-02 16:11 ` Daniel P. Berrange
2017-11-02 16:13   ` Paolo Bonzini [this message]
2017-11-03  6:49   ` Gerd Hoffmann
2017-11-03 10:10     ` Daniel P. Berrange
2017-11-03 10:43       ` Gerd Hoffmann
2017-11-06  6:09         ` Markus Armbruster
2017-11-03 20:13 ` [Qemu-devel] [SeaBIOS] " Kevin O'Connor

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