Intel Q35/Q45 fb driver?

[Pat Kane]

So you have an MLS shared memory?

On Tue, Oct 6, 2009 at 1:47 PM, McDonald, Michael-p7438c
<Michael.McDonald at gdc4s.com> wrote:
>
>
> Mike McDonald
> GDC4S JLTV
>
>> -----Original Message-----
>> From: Adam Jackson [mailto:ajax at nwnk.net]
>> Sent: Tuesday, October 06, 2009 11:02 AM
>> To: McDonald, Michael-p7438c
>> Cc: xorg at lists.freedesktop.org
>> Subject: Re: Intel Q35/Q45 fb driver?
>>
>
>> If so, your copy chain (assuming PutImage not ShmPutImage) looks like:
>>
>> app -> vm kernel -> vm X server -> hv -> host X server -> gpu
>
> It's actually
>
> app -> vm kernel -> vm X server -> shared memory
>
>                                             shared memory -> xapp ->
> kernel -> host X server ->gpu
>
> The first chain runs independantly of the second. The frame rates I
> mentioned are only refering to the second chain. Of there are multiple
> instances of the first chain running, each at a different security
> level.
>
>> Which is pretty dire.  You could just run the app in the vm
>> but display
>> on the host's X server
>
> Nope, that would violate security requirements for separation.
>
> Mike McDonald
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