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[Qemu-devel] Re: [PATCH 1/2] Introduce CharDriverState qdev property typ


From: Gerd Hoffmann
Subject: [Qemu-devel] Re: [PATCH 1/2] Introduce CharDriverState qdev property type
Date: Wed, 22 Jul 2009 11:48:27 +0200
User-agent: Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.1b3pre) Gecko/20090513 Fedora/3.0-2.3.beta2.fc11 Lightning/1.0pre Thunderbird/3.0b2

On 07/21/09 17:47, Anthony Liguori wrote:
Gerd Hoffmann wrote:
Not sure what qdev_prop_set_chrdev() should accept then. struct
pointer? string?

Good question. I think it depends on how we connect things. We could
introduce another structure for front-ends and then have a separate
connect mechanism. The association of names would be transparent to
qdev/devices.

Hmm. When going that route it we might not use attributes at all but just tie stuff directly into Device*, i.e. DeviceState gets a backend link and DeviceInfo gets a connect callback.

We could also hand the chrdev structure directly to the device but then
you have to deal with setting/unsetting.

Optional Property->notify() callback should do for devices which actually care (cdrom to signal media change to guest maybe).

cheers,
  Gerd





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