[Xen-devel] [PATCH 6/6] x86/xsaves: detect xsaves/xgetbv in xen

[Shuai Ruan <shuai.ruan@xxxxxxxxx>]

As xsaves/xgetbv already support, so switch on.

Signed-off-by: Shuai Ruan <shuai.ruan@xxxxxxxxx>
---
 xen/arch/x86/xstate.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/xen/arch/x86/xstate.c b/xen/arch/x86/xstate.c
index c20f865..ebf9920 100644
--- a/xen/arch/x86/xstate.c
+++ b/xen/arch/x86/xstate.c
@@ -525,15 +525,15 @@ void xstate_init(bool_t bsp)
     {
         cpu_has_xsaveopt = !!(eax & XSTATE_FEATURE_XSAVEOPT);
         cpu_has_xsavec = !!(eax & XSTATE_FEATURE_XSAVEC);
-        /* XXX cpu_has_xgetbv1 = !!(eax & XSTATE_FEATURE_XGETBV1); */
-        /* XXX cpu_has_xsaves = !!(eax & XSTATE_FEATURE_XSAVES); */
+        cpu_has_xgetbv1 = !!(eax & XSTATE_FEATURE_XGETBV1);
+        cpu_has_xsaves = !!(eax & XSTATE_FEATURE_XSAVES);
     }
     else
     {
         BUG_ON(!cpu_has_xsaveopt != !(eax & XSTATE_FEATURE_XSAVEOPT));
         BUG_ON(!cpu_has_xsavec != !(eax & XSTATE_FEATURE_XSAVEC));
-        /* XXX BUG_ON(!cpu_has_xgetbv1 != !(eax & XSTATE_FEATURE_XGETBV1)); */
-        /* XXX BUG_ON(!cpu_has_xsaves != !(eax & XSTATE_FEATURE_XSAVES)); */
+        BUG_ON(!cpu_has_xgetbv1 != !(eax & XSTATE_FEATURE_XGETBV1));
+        BUG_ON(!cpu_has_xsaves != !(eax & XSTATE_FEATURE_XSAVES));
     }
 
     if ( cpu_has_xsaves )
-- 
1.9.1


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