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Message-Id: <1305141480-843-3-git-send-email-fenghua.yu@intel.com>
Date: Wed, 11 May 2011 12:17:59 -0700
From: "Fenghua Yu" <fenghua.yu@...el.com>
To: "Ingo Molnar" <mingo@...e.hu>,
"Thomas Gleixner" <tglx@...utronix.de>,
"H Peter Anvin" <hpa@...or.com>,
"Asit K Mallick" <asit.k.mallick@...el.com>,
"Bruce Schlobohm" <bruce.schlobohm@...el.com>
Cc: "linux-kernel" <linux-kernel@...r.kernel.org>,
"Fenghua Yu" <fenghua.yu@...el.com>
Subject: [PATCH 2/3] x86, cpu: Add SMEP CPU feature in CR4
From: Fenghua Yu <fenghua.yu@...el.com>
Add support for newly documented SMEP (Supervisor Mode Execution Protection)
CPU feature in CR4.
Signed-off-by: Fenghua Yu <fenghua.yu@...el.com>
---
arch/x86/include/asm/processor-flags.h | 1 +
1 files changed, 1 insertions(+), 0 deletions(-)
diff --git a/arch/x86/include/asm/processor-flags.h b/arch/x86/include/asm/processor-flags.h
index a898a2b..59ab4df 100644
--- a/arch/x86/include/asm/processor-flags.h
+++ b/arch/x86/include/asm/processor-flags.h
@@ -60,6 +60,7 @@
#define X86_CR4_OSXMMEXCPT 0x00000400 /* enable unmasked SSE exceptions */
#define X86_CR4_VMXE 0x00002000 /* enable VMX virtualization */
#define X86_CR4_OSXSAVE 0x00040000 /* enable xsave and xrestore */
+#define X86_CR4_SMEP 0x00100000 /* enable SMEP support */
/*
* x86-64 Task Priority Register, CR8
--
1.7.2
--
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