On 3/4/19 1:57 AM, speck for Jon Masters wrote:
> On 3/1/19 4:47 PM, speck for Thomas Gleixner wrote:
>>  	if (static_branch_unlikely(&vmx_l1d_should_flush))
>>  		vmx_l1d_flush(vcpu);
>> +	else if (static_branch_unlikely(&mds_user_clear))
>> +		mds_clear_cpu_buffers();
> 
> Does this cover the case where we have older ucode installed that does
> L1D flush but NOT the MD_CLEAR? I'm about to go check to see if there's
> logic handling this but wanted to call it out.

Aside from the above question, I've reviewed all of the patches
extensively at this point. Feel free to add a Reviewed-by or Tested-by
according to your preference. I've a bunch of further tests running,
including on AMD platforms just so to check nothing broke with those
platforms that are not susceptible to MDS.

Jon.

-- 
Computer Architect | Sent with my Fedora powered laptop