linux-kernel - Re: [PATCH] x86/mm/pkeys: Do not enable them by default

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Date:	Fri, 19 Feb 2016 09:11:03 -0800
From:	Dave Hansen <dave@...1.net>
To:	Borislav Petkov <bp@...en8.de>,
	Dave Hansen <dave.hansen@...ux.intel.com>
Cc:	linux-tip-commits@...r.kernel.org, linux-kernel@...r.kernel.org,
	brgerst@...il.com, tglx@...utronix.de,
	torvalds@...ux-foundation.org, hpa@...or.com,
	akpm@...ux-foundation.org, peterz@...radead.org, mingo@...nel.org,
	luto@...capital.net, dvlasenk@...hat.com, riel@...hat.com
Subject: Re: [PATCH] x86/mm/pkeys: Do not enable them by default

On 02/19/2016 03:27 AM, Borislav Petkov wrote:
>  config X86_INTEL_MEMORY_PROTECTION_KEYS
> -	prompt "Intel Memory Protection Keys"
> -	def_bool y
> +	bool "Intel Memory Protection Keys"
>  	# Note: only available in 64-bit mode
>  	depends on CPU_SUP_INTEL && X86_64
>  	---help---

Hi Borislav,

I'd really prefer this be left on by default.  This is a feature that I
expect to be widely enabled in distribution kernels.