Re: [Xen-users] vtd / pci passthru broken in 3.3?

[Akio Takebe <takebe_akio@xxxxxxxxxxxxxx>]

Hi,

I think iommu=1 is needed to command line.
See the folowing howto.
http://wiki.xensource.com/xenwiki/VTdHowTo

Best Regards,

Akio Takebe

>Hi,
>
>Is vtd / pci passthru broken in 3.3? On my Supermicro x7dwa-n system I
>was able to get pci passthru working with 3.2.1, but with 3.3 the xen
>dmesg states that it is disabled:
>
>(XEN) I/O virtualisation disabled
>
>I used the same argument to enable vtd as I did with 3.2.1, is this correct:
>
>(XEN) Command line: vtd=1 com1=115200,8n1 console=vga,com1 noirqbalance
>
>Thanks
>Andy
>
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