The code is sufficiently substantial that it improves code readability
to put it in a new function called by xen_hvm_init() rather than having
it inline.
Signed-off-by: NPaul Durrant <paul.durrant@citrix.com>
Reviewed-by: NAnthony Perard <anthony.perard@citrix.com>
Signed-off-by: NStefano Stabellini <sstabellini@kernel.org>