From mboxrd@z Thu Jan  1 00:00:00 1970
From: Xin Zhao <zhaoxin@eecs.umich.edu>
Subject: grant table issue
Date: Fri, 09 Jun 2006 04:47:28 -0400
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Hi,

I am trying to export a memory page of dom0 to a domU in readonly mode. 
In dom0, I grant access permission to that domU. In domU, I did
 HYPERVISOR_grant_table_op(GNTTABOP_map_grant_ref, map, res->nr_pages);

All these functions returned successfully. But when I tried to access 
data in the mapped memory page, all data I got is 0. 

Is there any restriction that preventing dom0 pages from being export to 
other domains? If so, is there any way to relax this restriction?

xin