On 3/1/19 4:47 PM, speck for Thomas Gleixner wrote:
> Changes vs. V5:
> 
>   - Fix tools/ build (Josh)
> 
>   - Dropped the AIRMONT_MID change as it needs confirmation from Intel
> 
>   - Made the consolidated whitelist more readable and correct
> 
>   - Added the MSBDS only quirk for XEON PHI, made the idle flush
>     depend on it and updated the sysfs output accordingly.
> 
>   - Fixed the protection matrix in the admin documentation and clarified
>     the SMT situation vs. MSBDS only.
> 
>   - Updated the KVM/VMX changelog.
> 
> Delta patch against V5 below.
> 
> Available from git:
> 
>    cvs.ou.linutronix.de:linux/speck/linux WIP.mds
> 
> The linux-4.20.y, linux-4.19.y and linux-4.14.y branches are updated as
> well and contain the untested backports of the pile for reference.
> 
> I'll send git bundles of the pile as well.

Tested on Coffeelake with updated ucode successfully:

processor       : 0
vendor_id       : GenuineIntel
cpu family      : 6
model           : 158
model name      : Intel(R) Core(TM) i7-8086K CPU @ 4.00GHz
stepping        : 10
microcode       : 0xae

[jcm@stephen ~]$ dmesg|grep MDS
[    1.633165] MDS: Mitigation: Clear CPU buffers

[jcm@stephen ~]$ cat /sys/devices/system/cpu/vulnerabilities/mds
Mitigation: Clear CPU buffers; SMT vulnerable

Jon.

-- 
Computer Architect | Sent with my Fedora powered laptop