Re: [Xen-devel] [v2][PATCH] xen/vtd/iommu: permit group devices to passthrough in relaxed mode

[HÃkon Alstadheim <hakon@xxxxxxxxxxxxxxxxxx>]

Den 10. sep. 2015 08:06, skrev Tian, Kevin:
>> From: Chen, Tiejun
>> Sent: Thursday, September 10, 2015 1:47 PM
>>
>> But recently someone was encountering this problem.
>>
>> http://www.gossamer-threads.com/lists/xen/devel/391684?page=last
>>
>> We'd better figure out a simple way to this regression.
>>
> I'm not sure how popular that motherboard is used...
I've got the same devices on Asus Z10PE-D8 WS. Probably used
by several motherboard-manufacturers.


>  To me security is
> important so having some limitation for this purpose is acceptable.
PCIE add-in cards for USB are hard to work with, see [1],  so maximum use
of the on-board USB is a high priority for me, and I'd think others aswell.
>  But
> I'd also like to hear comments from Jan and Wei. If they think regression
> is more important (anyway we're not causing new security problem, it's
> there before), I'm OK with this patch (besides you need fix print level)
>
>
[1]
<http://www.gossamer-threads.com/lists/gentoo/user/305889?search_string=USB%203.0;#305889>

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