xen: clean up domain mode predicates
There are four operating modes Xen code may find itself running in:
- native
- hvm domain
- pv dom0
- pv domU
Clean up predicates for testing for these states to make them more consistent.
Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Cc: Xen-devel <xen-devel@lists.xensource.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
diff --git a/drivers/xen/balloon.c b/drivers/xen/balloon.c
index fff987b..a51f3e1 100644
--- a/drivers/xen/balloon.c
+++ b/drivers/xen/balloon.c
@@ -419,7 +419,7 @@
unsigned long pfn;
struct page *page;
- if (!is_running_on_xen())
+ if (!xen_pv_domain())
return -ENODEV;
pr_info("xen_balloon: Initialising balloon driver.\n");