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>

1 files changed, 3 insertions, 3 deletions

diff --git a/drivers/char/hvc_xen.c b/drivers/char/hvc_xen.c
index 6b70aa66a587..538ceea5e7df 100644
--- a/drivers/char/hvc_xen.c
+++ b/drivers/char/hvc_xen.c
@@ -108,8 +108,8 @@ static int __init xen_init(void)
 {
         struct hvc_struct *hp;
 
-        if (!is_running_on_xen() ||
-            is_initial_xendomain() ||
+        if (!xen_pv_domain() ||
+            xen_initial_domain() ||
             !xen_start_info->console.domU.evtchn)
                 return -ENODEV;
 
@@ -142,7 +142,7 @@ static void __exit xen_fini(void)
 
 static int xen_cons_init(void)
 {
-        if (!is_running_on_xen())
+        if (!xen_pv_domain())
                 return 0;
 
         hvc_instantiate(HVC_COOKIE, 0, &hvc_ops);