Messages in this thread Patch in this message | | | Subject | [PATCH 03/31] x86, pkeys: Add Kconfig option | From | Dave Hansen <> | Date | Fri, 29 Jan 2016 10:16:47 -0800 |
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From: Dave Hansen <dave.hansen@linux.intel.com>
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 #ifdef.
We will hide the prompt for now.
Signed-off-by: Dave Hansen <dave.hansen@linux.intel.com> Reviewed-by: Thomas Gleixner <tglx@linutronix.de> ---
b/arch/x86/Kconfig | 4 ++++ 1 file changed, 4 insertions(+)
diff -puN arch/x86/Kconfig~pkeys-01-kconfig arch/x86/Kconfig --- a/arch/x86/Kconfig~pkeys-01-kconfig 2016-01-28 15:52:17.645279448 -0800 +++ b/arch/x86/Kconfig 2016-01-28 15:52:17.649279631 -0800 @@ -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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