Re: [PATCH] x86/Kconfig: Make X86_UMIP to cover Zhaoxin CPUs too

From: Tony W Wang-oc
Date: Wed Mar 04 2020 - 22:40:40 EST



On 05/03/2020 01:13, Sean Christopherson wrote:
> On Wed, Mar 04, 2020 at 10:18:05AM +0800, Tony W Wang-oc wrote:
>> New Zhaoxin family 7 CPUs support the UMIP (User-Mode Instruction
>> Prevention) feature. So, modify X86_UMIP depends on Zhaoxin CPUs too.
>>
>> Signed-off-by: Tony W Wang-oc <TonyWWang-oc@xxxxxxxxxxx>
>> ---
>> arch/x86/Kconfig | 2 +-
>> 1 file changed, 1 insertion(+), 1 deletion(-)
>>
>> diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
>> index 16a4b39..ca4beb8 100644
>> --- a/arch/x86/Kconfig
>> +++ b/arch/x86/Kconfig
>> @@ -1877,7 +1877,7 @@ config X86_SMAP
>>
>> config X86_UMIP
>> def_bool y
>> - depends on CPU_SUP_INTEL || CPU_SUP_AMD
>> + depends on CPU_SUP_INTEL || CPU_SUP_AMD || CPU_SUP_CENTAUR || CPU_SUP_ZHAOXIN
>
> The changelog only mentions Zhaoxin, but this also adds Centaur...

Sorry for this. Some Centaur family 7 CPUs also support the UMIP
feature, so will resend this patch as a patch series.

Sincerely
TonyWWang-oc
>
>> prompt "User Mode Instruction Prevention" if EXPERT
>> ---help---
>> User Mode Instruction Prevention (UMIP) is a security feature in
>> --
>> 2.7.4
>>
> .
>