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Date: Thu, 06 Aug 2009 08:58:01 -0500
From: Anthony Liguori <anthony@codemonkey.ws>
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Subject: Re: [Qemu-devel] Re: virtio-serial: An interface for host-guest
	communication
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To: Amit Shah <amit.shah@redhat.com>
Cc: kvm@vger.kernel.org, Rusty Russell <rusty@rustcorp.com.au>, qemu-devel@nongnu.org, "Richard W.M. Jones" <rjones@redhat.com>, virtualization@lists.linux-foundation.org

Amit Shah wrote:
> On (Thu) Aug 06 2009 [08:29:40], Anthony Liguori wrote:
>   
>> Amit Shah wrote:
>>     
>>> Sure; but there's been no resistance from anyone from including the
>>> virtio-serial device driver so maybe we don't need to discuss that.
>>>   
>>>       
>> There certainly is from me.  The userspace interface is not reasonable  
>> for guest applications to use.
>>     
>
> One example that would readily come to mind is dbus. A daemon running on
> the guest that reads data off the port and interacts with the desktop by
> appropriate dbus commands. All that's needed is a stream of bytes and
> virtio-serial provides just that.
>   

dbus runs as an unprivileged user, how does dbus know which 
virtio-serial port to open and who sets the permissions on that port?

Regards,

Anthony Liguori