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

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?


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