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xen: use direct ops on 64-bit

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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>
This commit is contained in:
Jeremy Fitzhardinge
2009-02-02 13:55:54 -08:00
committed by H. Peter Anvin
parent 5393744b71
commit e4d0407185
1 changed files with 1 additions and 13 deletions
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14
arch/x86/xen/enlighten.c
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@@ -87,14 +87,7 @@ struct shared_info *HYPERVISOR_shared_info = (void *)&xen_dummy_shared_info;
* *
* 0: not available, 1: available * 0: not available, 1: available
*/ */
static int have_vcpu_info_placement = static int have_vcpu_info_placement = 1;
#ifdef CONFIG_X86_32
1
#else
0
#endif
;
static void xen_vcpu_setup(int cpu) static void xen_vcpu_setup(int cpu)
{ {
@@ -914,11 +907,6 @@ asmlinkage void __init xen_start_kernel(void)
machine_ops = xen_machine_ops; 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 #ifdef CONFIG_X86_64
/* /*
* Setup percpu state. We only need to do this for 64-bit * Setup percpu state. We only need to do this for 64-bit