[linux-yocto] [kernel-cache][PATCH] features: add Intel Memory Protection Extensions

[Bruce Ashfield]

On 2017-03-10 02:44 AM, Mikko Ylinen wrote:
> This commit adds a kernel feature to have the kernel support
> for Intel Memory Protection Extensions (MPX).
>
> A quote from kernel arch/x86/Kconfig:
>
> "MPX provides hardware features that can be used in conjuction
> with compiler-instrumented code to check memory references. It
> is designed to detect buffer overflow or underflow bugs."
>
> Intel MPX is available, e.g., on Skylake and on Goldmont (e.g.,
> Intel 570x).
>

Looks good to me.

Which branches (kernel versions) are the target for this ? 4.8/4.9/4.10 ?

Bruce

> Signed-off-by: Mikko Ylinen <mikko.ylinen at linux.intel.com>
> ---
>  features/mpx/mpx.cfg | 1 +
>  features/mpx/mpx.scc | 4 ++++
>  2 files changed, 5 insertions(+)
>  create mode 100644 features/mpx/mpx.cfg
>  create mode 100644 features/mpx/mpx.scc
>
> diff --git a/features/mpx/mpx.cfg b/features/mpx/mpx.cfg
> new file mode 100644
> index 00000000..ed1a6dae
> --- /dev/null
> +++ b/features/mpx/mpx.cfg
> @@ -0,0 +1 @@
> +CONFIG_X86_INTEL_MPX=y
> diff --git a/features/mpx/mpx.scc b/features/mpx/mpx.scc
> new file mode 100644
> index 00000000..1c9cc2a1
> --- /dev/null
> +++ b/features/mpx/mpx.scc
> @@ -0,0 +1,4 @@
> +define KFEATURE_DESCRIPTION "Intel MPX (Memory Protection Extensions)"
> +define KFEATURE_COMPATIBILITY arch
> +
> +kconf hardware mpx.cfg
>