On Mon, Nov 04, 2019 at 08:50:51PM +0000, Moger, Babu wrote:
> AMD 2nd generation EPYC processors support the UMIP (User-Mode
> Instruction Prevention) feature. So, rename X86_INTEL_UMIP to
> generic X86_UMIP and modify the text to cover both Intel and AMD.
>
> Signed-off-by: Babu Moger <babu.moger@xxxxxxx>
> ---
> v2:
> Learned that for the hardware that support UMIP, we dont need to
> emulate. Removed the emulation related code and just submitting
> the config changes.
>
> arch/x86/Kconfig | 8 ++++----
> arch/x86/include/asm/disabled-features.h | 2 +-
> arch/x86/include/asm/umip.h | 4 ++--
> arch/x86/kernel/Makefile | 2 +-
> 4 files changed, 8 insertions(+), 8 deletions(-)
>
> diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
> index d6e1faa28c58..821b7cebff31 100644
> --- a/arch/x86/Kconfig
> +++ b/arch/x86/Kconfig
> @@ -1880,13 +1880,13 @@ config X86_SMAP
>
> If unsure, say Y.
>
> -config X86_INTEL_UMIP
> +config X86_UMIP
> def_bool y
> - depends on CPU_SUP_INTEL
> - prompt "Intel User Mode Instruction Prevention" if EXPERT
> + depends on X86 && (CPU_SUP_INTEL || CPU_SUP_AMD)
^^^
What's the dependency on X86 for?
Aren't the CPU_SUP_* things enough?
--
Regards/Gruss,
Boris.
https://people.kernel.org/tglx/notes-about-netiquette
