tree d3832d3d7ba02dd7f39f125536d754fcb2ea0b83
parent ef5e94af16c0c82452e1ea5d387e1203dd2198d6
author Jeremy Fitzhardinge <jeremy@goop.org> 1214955997 -0700
committer Ingo Molnar <mingo@elte.hu> 1215515790 +0200

x86/cpa: use an undefined PTE bit for testing CPA

Rather than using _PAGE_GLOBAL - which not all CPUs support - to test
CPA, use one of the reserved-for-software-use PTE flags instead.  This
allows CPA testing to work on CPUs which don't support PGD.

Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Cc: Stephen Tweedie <sct@redhat.com>
Cc: Eduardo Habkost <ehabkost@redhat.com>
Cc: Mark McLoughlin <markmc@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>