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Subject[PATCH 04/25] x86, pku: define new CR4 bit
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From: Dave Hansen <dave.hansen@linux.intel.com>

There is a new bit in CR4 for enabling protection keys. We
will actually enable it later in the series.

Signed-off-by: Dave Hansen <dave.hansen@linux.intel.com>
---

b/arch/x86/include/uapi/asm/processor-flags.h | 2 ++
1 file changed, 2 insertions(+)

diff -puN arch/x86/include/uapi/asm/processor-flags.h~pkeys-02-cr4 arch/x86/include/uapi/asm/processor-flags.h
--- a/arch/x86/include/uapi/asm/processor-flags.h~pkeys-02-cr4 2015-09-28 11:39:42.787039064 -0700
+++ b/arch/x86/include/uapi/asm/processor-flags.h 2015-09-28 11:39:42.790039200 -0700
@@ -118,6 +118,8 @@
#define X86_CR4_SMEP _BITUL(X86_CR4_SMEP_BIT)
#define X86_CR4_SMAP_BIT 21 /* enable SMAP support */
#define X86_CR4_SMAP _BITUL(X86_CR4_SMAP_BIT)
+#define X86_CR4_PKE_BIT 22 /* enable Protection Keys support */
+#define X86_CR4_PKE _BITUL(X86_CR4_PKE_BIT)

/*
* x86-64 Task Priority Register, CR8
_

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