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| Started by | Dave Hansen <dave@sr71.net> |
|---|---|
| First post | 2015-09-28 21:30 +0200 |
| Last post | 2015-09-28 21:30 +0200 |
| Articles | 1 — 1 participant |
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[PATCH 19/25] x86, pkeys: add Kconfig prompt to existing config option Dave Hansen <dave@sr71.net> - 2015-09-28 21:30 +0200
| From | Dave Hansen <dave@sr71.net> |
|---|---|
| Date | 2015-09-28 21:30 +0200 |
| Subject | [PATCH 19/25] x86, pkeys: add Kconfig prompt to existing config option |
| Message-ID | <qdMhA-gH-11@gated-at.bofh.it> |
From: Dave Hansen <dave.hansen@linux.intel.com> I don't have a strong opinion on whether we need this 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. Here's the option if folks want it. Signed-off-by: Dave Hansen <dave.hansen@linux.intel.com> --- b/arch/x86/Kconfig | 10 ++++++++++ 1 file changed, 10 insertions(+) diff -puN arch/x86/Kconfig~pkeys-40-kconfig-prompt arch/x86/Kconfig --- a/arch/x86/Kconfig~pkeys-40-kconfig-prompt 2015-09-28 11:39:49.547346582 -0700 +++ b/arch/x86/Kconfig 2015-09-28 11:39:49.551346764 -0700 @@ -1696,8 +1696,18 @@ config X86_INTEL_MPX If unsure, say N. config X86_INTEL_MEMORY_PROTECTION_KEYS + prompt "Intel Memory Protection Keys" def_bool y + # Note: only available in 64-bit mode depends on CPU_SUP_INTEL && X86_64 + ---help--- + Memory Protection Keys provides a mechanism for enforcing + page-based protections, but without requiring modification of the + page tables when an application changes protection domains. + + For details, see Documentation/x86/protection-keys.txt + + If unsure, say y. config EFI bool "EFI runtime service support" _ -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.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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