[Xen-devel] [PATCH 3/3] xen: use direct ops on 64-bit

[Jeremy Fitzhardinge <jeremy@xxxxxxxx>]

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

Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@xxxxxxxxxx>
---
arch/x86/xen/enlighten.c |   14 +-------------
1 file changed, 1 insertion(+), 13 deletions(-)

===================================================================
--- a/arch/x86/xen/enlighten.c
+++ b/arch/x86/xen/enlighten.c
@@ -116,14 +116,7 @@
 *
 * 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)
{
@@ -1644,11 +1637,6 @@
        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
         * because 32-bit already has %fs set properly.



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