xen: use direct ops on 64-bit

Enable the use of the direct vcpu-access operations on 64-bit.

Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>

diff --git a/arch/x86/xen/enlighten.c b/arch/x86/xen/enlighten.c
index aed7cee..3723034 100644 (file)
--- a/arch/x86/xen/enlighten.c
+++ b/arch/x86/xen/enlighten.c
@@ -87,14 +87,7 @@ struct shared_info *HYPERVISOR_shared_info = (void *)&xen_dummy_shared_info;
  *
  * 0: not available, 1: available
  */
-static int have_vcpu_info_placement =
-#ifdef CONFIG_X86_32
-       1
-#else
-       0
-#endif
-       ;
-
+static int have_vcpu_info_placement = 1;
 
 static void xen_vcpu_setup(int cpu)
 {
@@ -914,11 +907,6 @@ asmlinkage void __init xen_start_kernel(void)
 
        machine_ops = xen_machine_ops;
 
-#ifdef CONFIG_X86_64
-       /* Disable until direct per-cpu data access. */
-       have_vcpu_info_placement = 0;
-#endif
-
 #ifdef CONFIG_X86_64
        /*
         * Setup percpu state.  We only need to do this for 64-bit