[PATCH 04/26] x86, pku: define new CR4 bit

From	Dave Hansen <dave@sr71.net>
Newsgroups	linux.kernel
Subject	[PATCH 04/26] x86, pku: define new CR4 bit
Date	2015-09-16 20:10 +0200
Message-ID	<q9pjz-3D9-15@gated-at.bofh.it> (permalink)
References	<q9p0e-309-3@gated-at.bofh.it>
Organization	linux.* mail to news gateway

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

---

 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	2015-09-16 10:48:12.921041130 -0700
+++ b/arch/x86/include/uapi/asm/processor-flags.h	2015-09-16 10:48:12.924041266 -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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[PATCH 04/26] x86, pku: define new CR4 bit Dave Hansen <dave@sr71.net> - 2015-09-16 20:10 +0200

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