Re: [Xen-devel] Secondary bus reset for VT-d device

["Neo Jia" <neojia@xxxxxxxxx>]

Just want to get some flexibility for testing.

If Xen do it automatically, is there any log for this?

Thanks,
Neo

2008/8/28 Cui, Dexuan <dexuan.cui@xxxxxxxxx>:
> I think we should not trigger it manually. What's the purpose?
> If you use setpci to do SecondaryBusReset directly, all the devices behind 
> the bridge are reset suddenly while xend/Dom0/Xen don't know that...
> We don't check if "the host BARs are enabled" or not.
>
> -- Dexuan
>
>
> -----Original Message-----
> From: Neo Jia [mailto:neojia@xxxxxxxxx]
> Sent: 2008年8月29日 13:16
> To: Cui, Dexuan
> Cc: xen-devel@xxxxxxxxxxxxxxxxxxx; Han, Weidong
> Subject: Re: [Xen-devel] Secondary bus reset for VT-d device
>
> Can I trigger it manually? What happens if I just use setpci to do a
> "secondary bus reset"? Will Xen be able to check if the host BARs are
> enabled for the device before putting it into the guest?
>
> Thanks,
> Neo
>



-- 
I would remember that if researchers were not ambitious
probably today we haven't the technology we are using!

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