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From: Avi Kivity <avi-atKUWr5tajBWk0Htik3J/w@public.gmane.org>
To: Marcelo Tosatti <marcelo-Bw31MaZKKs3YtjvyW6yDsg@public.gmane.org>
Cc: kvm-devel
	<kvm-devel-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org>,
	virtualization-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org
Subject: Re: [PATCH] kvm guest balloon driver
Date: Tue, 08 Jan 2008 18:18:13 +0200	[thread overview]
Message-ID: <4783A245.90002@qumranet.com> (raw)
In-Reply-To: <20080108161005.GA22168@dmt>

Marcelo Tosatti wrote:

 

>> Why is it taking over the irq?  This is very, very wrong.  A virtio 
>> device cannot be dependent on being used on top of the virtio-pci backend.
>>     
>
> A notification is necessary whenever the host changes the target value
> in the config space. So right now this notification is sharing the
> same IRQ as the main PCI device.
>
> Do you have any suggestion on how to retrieve the IRQ of the virtio
> device, or some other notification mechanism?
>   

One way would be to send a "look at config" queue message, but it seems 
that it is a fairly generic operation.  Maybe virtio can add support for 
it, with a new callback.

-- 
error compiling committee.c: too many arguments to function


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  parent reply	other threads:[~2008-01-08 16:18 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-01-08 15:33 [PATCH] kvm guest balloon driver Marcelo Tosatti
2008-01-08 15:42 ` Anthony Liguori
     [not found]   ` <478399D5.9030707-rdkfGonbjUSkNkDKm+mE6A@public.gmane.org>
2008-01-08 16:10     ` Marcelo Tosatti
2008-01-08 16:14       ` Anthony Liguori
     [not found]         ` <4783A14A.3080605-rdkfGonbjUSkNkDKm+mE6A@public.gmane.org>
2008-01-08 16:36           ` Avi Kivity
     [not found]             ` <4783A68E.80901-atKUWr5tajBWk0Htik3J/w@public.gmane.org>
2008-01-08 16:43               ` Anthony Liguori
2008-01-08 16:18       ` Avi Kivity [this message]
     [not found]         ` <4783A245.90002-atKUWr5tajBWk0Htik3J/w@public.gmane.org>
2008-01-09  3:20           ` Rusty Russell
2008-01-09 10:06     ` Andrea Arcangeli
     [not found]       ` <20080109100621.GL6958-lysg2Xt5kKMAvxtiuMwx3w@public.gmane.org>
2008-01-09 11:14         ` Marcelo Tosatti

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