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Date: Thu, 18 Feb 2016 12:16:47 -0800 From: tip-bot for Dave Hansen <tipbot@...or.com> To: linux-tip-commits@...r.kernel.org Cc: linux-kernel@...r.kernel.org, brgerst@...il.com, bp@...en8.de, tglx@...utronix.de, torvalds@...ux-foundation.org, hpa@...or.com, dave.hansen@...ux.intel.com, akpm@...ux-foundation.org, peterz@...radead.org, mingo@...nel.org, luto@...capital.net, dvlasenk@...hat.com, dave@...1.net, riel@...hat.com Subject: [tip:mm/pkeys] x86/mm/pkeys: Add Kconfig option Commit-ID: 35e97790f5f1e5cf2b5522c55e3e31d5c81bd226 Gitweb: http://git.kernel.org/tip/35e97790f5f1e5cf2b5522c55e3e31d5c81bd226 Author: Dave Hansen <dave.hansen@...ux.intel.com> AuthorDate: Fri, 12 Feb 2016 13:02:00 -0800 Committer: Ingo Molnar <mingo@...nel.org> CommitDate: Tue, 16 Feb 2016 10:11:13 +0100 x86/mm/pkeys: Add Kconfig option I don't have a strong opinion on whether we need a Kconfig prompt or not. Protection Keys has relatively little code associated with it, and it is not a heavyweight feature to keep enabled. However, I can imagine that folks would still appreciate being able to disable it. Note that, with disabled-features.h, the checks in the code for protection keys are always the same: cpu_has(c, X86_FEATURE_PKU) With the config option disabled, this essentially turns into an We will hide the prompt for now. Signed-off-by: Dave Hansen <dave.hansen@...ux.intel.com> Reviewed-by: Thomas Gleixner <tglx@...utronix.de> Cc: Andrew Morton <akpm@...ux-foundation.org> Cc: Andy Lutomirski <luto@...capital.net> Cc: Borislav Petkov <bp@...en8.de> Cc: Brian Gerst <brgerst@...il.com> Cc: Dave Hansen <dave@...1.net> Cc: Denys Vlasenko <dvlasenk@...hat.com> Cc: H. Peter Anvin <hpa@...or.com> Cc: Linus Torvalds <torvalds@...ux-foundation.org> Cc: Peter Zijlstra <peterz@...radead.org> Cc: Rik van Riel <riel@...hat.com> Cc: linux-mm@...ck.org Link: http://lkml.kernel.org/r/20160212210200.DB7055E8@viggo.jf.intel.com Signed-off-by: Ingo Molnar <mingo@...nel.org> --- arch/x86/Kconfig | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig index ab2ed53..3632cdd 100644 --- a/arch/x86/Kconfig +++ b/arch/x86/Kconfig @@ -1714,6 +1714,10 @@ config X86_INTEL_MPX If unsure, say N. +config X86_INTEL_MEMORY_PROTECTION_KEYS + def_bool y + depends on CPU_SUP_INTEL && X86_64 + config EFI bool "EFI runtime service support" depends on ACPI
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