Jon deps:
On 6/12/19 8:14 AM, Jon deps wrote:
Jun 12 07:52:01 dom0 kernel: MDS CPU bug present and SMT on, data leak
possible. See
https://www.kernel.org/doc/html/latest/admin-guide/hw-vuln/mds.html
for more details.
.....any idea on the "data leak possible" journal entry?
sounds a bit scary, maybe I need to look around in my UEFI to disable
some cache-ing ?
SMT should be off. Do you see that same message if you do a cold power
on? Also, in "sudo cat /boot/efi/EFI/qubes/xen.cfg", do you see
"smt=off" in the Xen options lines?
I wonder if there is a Xen bug making SMT re-enable after a resume.
Please check the above, then look in your UEFI options to disable
Hyperthreading/SMT.
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