Re: [Xen-ia64-devel][PATCH] workaround for itr_d

[Isaku Yamahata <yamahata@xxxxxxxxxxxxx>]

> +    if(ps != 24)

Hi Anthony.
_PAGE_SIZE_16M should be used instead of a magic number, 24.


On Wed, Sep 20, 2006 at 05:29:55PM +0800, Xu, Anthony wrote:
> Workaround for itr_d
> 
> This is a bad workaround
> In linux, region 7 use 16M page size, and it is identity mapping,
> While VHPT page size is 16K in XEN, if purge VHPT while guest insert 16M
> TR,
> It will iterate purge VHPT 1024 times, which makes XEN/IFF very slow.
> XEN doesn't purge VHPT
> 
> Signed-off-by: Anthony Xu < anthony.xu@xxxxxxxxx >
> 
> Thanks,
> Anthony
>    


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-- 
yamahata

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