On 2 May 2017, at 3:21 , Norrathep Rattanavipanon 
<[email protected]<mailto:[email protected]>> wrote:

2) If my understanding in 1) is correct, the remap function only takes 1 cap at 
a time.
So if I want to modify access rights of many pages, do I have to call the remap 
function multiple times?
Or is there a more efficient way to do so?

Hi Oak,

As we discussed in person, this is a known issue of our API, and I have 
presently a student doing some evaluations. I have your use case in mind when 
talking to the student – for everyone else’s benefit, this is about a 
consistent shapshot of user memory for doing remote attestation.

I would be interested in other use cases for a bulk re-mapping operation. I 
suspect that there are use cases where this might be a bottleneck, but it would 
be good to identify specific cases of enough significance to consider an API 
change. Certainly there won’t be a change if we don’t have convincing use cases.

Gernot
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