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Date: Mon, 15 Jun 2009 15:41:29 +0300
From: "Michael S. Tsirkin" <mst@redhat.com>
Subject: Re: Configuration vs. compat hints [was Re: [Qemu-devel] [PATCHv3
	03/13] qemu: add routines to manage PCI capabilities]
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To: Avi Kivity <avi@redhat.com>
Cc: Mark McLoughlin <markmc@redhat.com>, kvm@vger.kernel.org, Carsten Otte <cotte@de.ibm.com>, Glauber Costa <glommer@redhat.com>, Rusty Russell <rusty@rustcorp.com.au>, qemu-devel@nongnu.org, virtualization@lists.linux-foundation.org, Blue Swirl <blauwirbel@gmail.com>, Christian Borntraeger <borntraeger@de.ibm.com>, Paul Brook <paul@codesourcery.com>

On Mon, Jun 15, 2009 at 02:56:42PM +0300, Avi Kivity wrote:
> On 06/15/2009 02:48 PM, Michael S. Tsirkin wrote:
>>> A slot needs to be configured in ACPI,
>>>      
>>
>> Can we configure all possible 32 slots?
>>    
>
> That's what we do.  But one is always taken.  In the future, perhaps more.
>
>>> and not be taken by onboard chips
>>> (piix takes slot 0, for example).
>>>      
>>
>> piix is the root complex, isn't it? Are there other examples? If not,
>> we could teach management about the root complex being special ...
>>    
>
> We should just tell the user which slots are open.

This might be tricky if the config is passed in with the command line
flags.