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authorSuresh Siddha <suresh.b.siddha@intel.com>2009-04-10 15:21:24 -0700
committerIngo Molnar <mingo@elte.hu>2009-04-12 13:08:56 +0200
commita30469e7921a6dd2067e9e836d7787cfa0105627 (patch)
tree6a5418033c233648b436610a6f6730f37ba80144 /arch/x86/kernel
parent1ee4bd92a7aa49eb66c8d5672e837090d3e7b7ff (diff)
x86: add linux kernel support for YMM state
Impact: save/restore Intel-AVX state properly between tasks Intel Advanced Vector Extensions (AVX) introduce 256-bit vector processing capability. More about AVX at http://software.intel.com/sites/avx Add OS support for YMM state management using xsave/xrstor infrastructure to support AVX. Signed-off-by: Suresh Siddha <suresh.b.siddha@intel.com> LKML-Reference: <1239402084.27006.8057.camel@localhost.localdomain> Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/x86/kernel')
-rw-r--r--arch/x86/kernel/xsave.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/x86/kernel/xsave.c b/arch/x86/kernel/xsave.c
index 2b54fe002e9..0a5b04aa98f 100644
--- a/arch/x86/kernel/xsave.c
+++ b/arch/x86/kernel/xsave.c
@@ -324,7 +324,7 @@ void __ref xsave_cntxt_init(void)
}
/*
- * for now OS knows only about FP/SSE
+ * Support only the state known to OS.
*/
pcntxt_mask = pcntxt_mask & XCNTXT_MASK;
xsave_init();