x86_32: don't allow use of nested HVM
authorJan Beulich <jbeulich@suse.com>
Wed, 23 Jan 2013 10:51:16 +0000 (11:51 +0100)
committerJan Beulich <jbeulich@suse.com>
Wed, 23 Jan 2013 10:51:16 +0000 (11:51 +0100)
commitd60d7082289a74e44b3dc8f67df46c3404ca08bf
tree95d72bd153dbc85dba4a191a9b45b0c20d441fcd
parentab596d8701e5bcb6ed6be729c8d3b862a2904274
x86_32: don't allow use of nested HVM

There are (indirect) uses of map_domain_page() in the nested HVM code
that are unsafe when not just using the 1:1 mapping.

This is XSA-34 / CVE-2013-0151.

Signed-off-by: Jan Beulich <jbeulich@suse.com>
xen/arch/x86/hvm/hvm.c