I actually asked same question to "xen-user" but just in case I can
have a better luck, I am posting it here as well.
I am actually looking for a way to get pages (frames)
shared across different domains. I saw using a grant-table is a
standard way to do it by assigning and passing references for
pages to be shared to the remote domain.
However, I also saw there's a limitation in terms of size of grant
table, meaning we can share only certain number of frames (e.g. 32).
The buffer I want to share is way bigger than this (~8MB), so I think
this is pretty big blocker for us. Am I understanding about this
size limitation correctly?
If this restriction on # of frames is something that can't be easily
removed, I would like to know if there's any other alternative way
to achieve our goal (sharing big buffer with more than 2000 pages).
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