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x86, xsave: Check cpuid level for XSTATE_CPUID (0x0d)

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The patch introduces the XSTATE_CPUID macro and adds a check that
tests if XSTATE_CPUID exists.

Signed-off-by: Robert Richter <robert.richter@amd.com>
LKML-Reference: <1279731838-1522-4-git-send-email-robert.richter@amd.com>
Acked-by: Suresh Siddha <suresh.b.siddha@intel.com>
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
This commit is contained in:
Robert Richter
2010-07-21 19:03:54 +02:00
committed by H. Peter Anvin
parent 97e80a70db
commit ee813d53a8
2 changed files with 10 additions and 3 deletions
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2
arch/x86/include/asm/xsave.h
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@@ -4,6 +4,8 @@
#include <linux/types.h>
#include <asm/processor.h>
#define XSTATE_CPUID 0x0000000d
#define XSTATE_FP 0x1
#define XSTATE_SSE 0x2
#define XSTATE_YMM 0x4