tree 53c2abe7dccbf557586cb04319a0f9c6eed3a317
parent 6666754b11297526c699f8df63c52d50c24fe946
author Annie Li <annie.li@oracle.com> 1323684907 +0800
committer Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> 1324052739 -0500

xen/granttable: Support transitive grants

These allow a domain A which has been granted access on a page of domain B's
memory to issue domain C with a copy-grant on the same page.  This is useful
e.g. for forwarding packets between domains.

Signed-off-by: Annie Li <annie.li@oracle.com>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>