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Re: [Qemu-devel] Re: virtio-serial: An interface for host-guest communic

From: Anthony Liguori
Subject: Re: [Qemu-devel] Re: virtio-serial: An interface for host-guest communication
Date: Fri, 14 Aug 2009 11:25:32 -0500
User-agent: Thunderbird (X11/20090320)

Gerd Hoffmann wrote:
On 08/14/09 10:15, Amit Shah wrote:
The guest code sort-of ends up looking like this after merging
virtio_console into virtio_serial.

I think it should better go the other way around: add multichannel support to virtio-concole, probably guarded by a feature flag so old host+new guest and new host+old guest combinations continue to work.

Since there's support for only one console as of now, I've assigned port
#2 as the console port so that we hook into hvc when a port is found at
that location.

Doesn't sound like this is going to be backward compatible ...

Also I still think passing a 'protocol' string for each port is a good idea, so you can stick that into a sysfs file for guests use.

Or drops ports altogether and just use protocol strings...


Anthony Liguori

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