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Message-Id: <20150928191818.EDCB3BED@viggo.jf.intel.com> Date: Mon, 28 Sep 2015 12:18:19 -0700 From: Dave Hansen <dave@...1.net> To: dave@...1.net Cc: borntraeger@...ibm.com, x86@...nel.org, linux-kernel@...r.kernel.org, linux-mm@...ck.org, dave.hansen@...ux.intel.com Subject: [PATCH 04/25] x86, pku: define new CR4 bit From: Dave Hansen <dave.hansen@...ux.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@...ux.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 _ -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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