Re: [Xen-devel] [PATCH 2/4] amd iommu: Large io page support - parameter

[Keir Fraser <keir@xxxxxxx>]

On 03/12/2010 08:19, "Wei Wang2" <wei.wang2@xxxxxxx> wrote:

> Keir,
> It could be used to disable super iommu page if the new codes have some
> issues. But I am OK with removing it if you think this parameter is
> unnecessary. 

Yeah there's a judgement call there. But we don't add command-line flags for
every new feature we implement, and in this case I don't think it's
worthwhile. The iommu= set of parameters is hairy enough as it is. We can
always add the parameter *if* it proves to be worthwhile.

 -- Keir

> Thanks,
> Wei
>  
> On Friday 03 December 2010 17:14:12 Keir Fraser wrote:
>> Why? If the system supports superpages, use them. Simple.
>> 
>>  -- Keir
>> 
>> On 03/12/2010 08:03, "Wei Wang2" <wei.wang2@xxxxxxx> wrote:
>>> Add a xen parameter (iommu=superpage) to enable iommu super page.
>>> Thanks,
>>> We
>>> Signed-off-by: Wei Wang <wei.wang2@xxxxxxx>
>>> --
>>> Legal Information:
>>> Advanced Micro Devices GmbH
>>> Sitz: Dornach, Gemeinde Aschheim,
>>> Landkreis München Registergericht München,
>>> HRB Nr. 43632
>>> Geschäftsführer:
>>> Alberto Bozzo, Andrew Bowd
>>> _______________________________________________
>>> Xen-devel mailing list
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>>> http://lists.xensource.com/xen-devel
> 
> 
> 



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