Re: [RFC PATCH v3 02/59] x86/mtrr: mask out keyid bits from variable mtrr mask register

Thomas Gleixner
2021-11-25T17:19:08Z

On Thu, Nov 25 2021 at 09:36, Thomas Gleixner wrote:
>>
>> + if (boot_cpu_has(X86_FEATURE_TME)) {

cpu_feature_enabled() as Borislav pointed out several times already.

>> + u64 tme_activate;
>> +
>> + rdmsrl(MSR_IA32_TME_ACTIVATE, tme_activate);
>> + if (TME_ACTIVATE_LOCKED(tme_activate) &&
>> + TME_ACTIVATE_ENABLED(tme_activate)) {
>> + phys_addr -= TME_ACTIVATE_KEYID_BITS(tme_activate);
>> + }
>> + }
>> size_or_mask = SIZE_OR_MASK_BITS(phys_addr);
>> size_and_mask = ~size_or_mask & 0xfffff00000ULL;
>> } else if (boot_cpu_data.x86_vendor == X86_VENDOR_CENTAUR &&