Ubuntu
linux-oem-5.6 package

  1. Bug #1915063
  2. Comment #35

Comment 35 for bug 1915063

Revision history for this message
Babu Moger (babumoger) wrote :

I remember seeing something similar before. This was supposed to be fixed by the linux kernel commit.

commit 841c2be09fe4f495fe5224952a419bd8c7e5b455
Author: Maxim Levitsky <email address hidden>
Date: Wed Jul 8 14:57:31 2020 +0300

kvm: x86: replace kvm_spec_ctrl_test_value with runtime test on the host

# git describe --contains 841c2be09fe4f495fe5224952a419bd8c7e5b455
v5.9-rc1~121^2~67

Problem seems to happen with EPYC-Rome model which exposes the feature STIBP but not IBRS.

Did you guys try "-cpu host"? It might work.