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[Qemu-devel] Re: [PATCH] Add VirtIO Frame Buffer Support

From: Alexander Graf
Subject: [Qemu-devel] Re: [PATCH] Add VirtIO Frame Buffer Support
Date: Tue, 3 Nov 2009 07:39:34 +0100

On 03.11.2009, at 07:34, Avi Kivity wrote:

On 11/03/2009 08:27 AM, Alexander Graf wrote:

How does it work today?

You boot into a TERM=dumb line based emulation on 3270 (worst thing haunting people's nightmares ever), trying to get out of that mode as quickly as possible and off into SSH / VNC.

Despite the coolness factor, IMO a few minutes during install time do not justify a new hardware model and a new driver.

It's more than just coolness factor. There are use cases out there (www.susestudio.com ) that don't want to rely on the guest exporting a VNC server to the outside just to access graphics. You also want to see boot messages, have a console login screen, be able to debug things without switching between virtio-console and vnc, etc. etc.

The hardware model isn't exactly new either. It's just the next logical step to a full PV machine using virtio. If the virtio-fb stuff turns out to be really fast and reliable, I could even imagine it being the default target for kvm on ppc as well, as we can't switch resolutions on the fly there atm.

Does installation over vnc work?

Yes, but it requires a working network setup. That's a pretty requirement on guests IMHO.

Why? the guest will typically have networking when it's set up, so it should have network access during install. You can easily use slirp redirection and the built-in dhcp server to set this up with relatively few hassles.

That's how I use it right now. It's no fun.


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