RE: VTd pass through and 32 bit (sorry previous mail had no subject)

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Subash Kalbarga wrote:
> -----Original Message-----
> From: kvm-owner@xxxxxxxxxxxxxxx [mailto:kvm-owner@xxxxxxxxxxxxxxx] On
> Behalf Of Subash Kalbarga
> Sent: Thursday, July 09, 2009 12:51 PM
> To: kvm@xxxxxxxxxxxxxxx
> Subject:
> 
> Hi
> 
> I find that the HOW-TO for VT-d pass through on linux-kvm.org asks for
> Interrupt Remapping to be enabled in the kernel. However Interrupt
> Remapping is dependent on x86_64 (DMAR was also dependent but I guess
> the 2.6.30 kernel allows it for 32 bit systems)
> 

Device pass through doesn't depend on interrupt remapping. Interrupt remapping is optional. I will change the VT-d HOW-TO to clarify it. 

Regards,
Weidong

> 
> Does that mean I will not be able to try device pass through on 32 bit
> systems?

> 
> Thanks in advance
> Subash
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