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Re: [Xen-devel] [PATCH] Allow programatic iomem permissions

Hi Kieran,

On 13 Jul 2007, at 12:05, Kieran Mansley wrote:
...
Any thoughts on the above?

I'm happy to do some work to rectify this situation but don't want to
expend effort on something that won't get accepted.  Any background on
the reasons for the restriction (i.e. what the TLB flushing issues are)
would also be of help.

If it's as straightforward as Keir has suggested elsewhere in this thread, then it would seem possible to get rid of this check altogether. The xsm_map_grantref hook would suffice to implement security policy, and could be used to prohibit certain domains from mapping any grants at all.

Regards,

Derek Murray.

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