x86, hyper: Change hypervisor detection order

Detect Xen before HyperV because in Viridian compatibility mode Xen
presents itself as HyperV.  Move Xen to the top since it seems more
likely that Xen would emulate VMware than vice versa.

Signed-off-by: Anupam Chanda <achanda@nicira.com>
Link: http://lkml.kernel.org/r/1310150570-26810-1-git-send-email-achanda@nicira.com
Acked-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Acked-by: Yaozu (Eddie) Dong <eddie.dong@intel.com>
Reviewed-by: H. Peter Anvin <hpa@zytor.com>
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>

1 files changed, 2 insertions, 2 deletions

diff --git a/arch/x86/kernel/cpu/hypervisor.c b/arch/x86/kernel/cpu/hypervisor.c
index 8095f8611f8a..755f64fb0743 100644
--- a/arch/x86/kernel/cpu/hypervisor.c
+++ b/arch/x86/kernel/cpu/hypervisor.c
@@ -32,11 +32,11 @@
  */
 static const __initconst struct hypervisor_x86 * const hypervisors[] =
 {
-        &x86_hyper_vmware,
-        &x86_hyper_ms_hyperv,
 #ifdef CONFIG_XEN_PVHVM
         &x86_hyper_xen_hvm,
 #endif
+        &x86_hyper_vmware,
+        &x86_hyper_ms_hyperv,
 };
 
 const struct hypervisor_x86 *x86_hyper;