Re: [PATCH v2 4/8] x86/spec_ctrl: Add sysctl knobs to enable/disable SPEC_CTRL feature

[Tim Chen]

On 01/08/2018 07:29 AM, Van De Ven, Arjan wrote:
>>> +   if ((!c->cpu_index) && (boot_cpu_has(X86_FEATURE_SPEC_CTRL))) {
>>
>> We should test X86_BUG_SPECTRE_V1 here too before default enabling this,
>> no?
> 
> 
> we shouldn't default enable this.
> 

Patch 7 disables ibrs if retpoline is in use.

Tim