Comment 31 for bug 1765364

------- Comment From <email address hidden> 2019-03-13 02:57 EDT-------
Tested with below levels:

Host Kernel: 4.15.0-46-generic #49~16.04.1-Ubuntu SMP Tue Feb 12 17:43:02 UTC 2019 ppc64le

# cd /sys/firmware/devicetree/base/ibm,opal/fw-features
# ls -1 */enabled
fw-branch-hints-honored/enabled
fw-count-cache-disabled/enabled
inst-l1d-flush-ori30,30,0/enabled
inst-spec-barrier-ori31,31,0/enabled
needs-l1d-flush-msr-hv-1-to-0/enabled
needs-l1d-flush-msr-pr-0-to-1/enabled
needs-spec-barrier-for-bound-checks/enabled
speculation-policy-favor-security/enabled
tm-suspend-mode/enabled

FW: FW860.60 (SV860_180) (b)

# apt policy qemu-kvm
qemu-kvm:
Installed: 1:2.5+dfsg-5ubuntu10.35~test2
Candidate: 1:2.5+dfsg-5ubuntu10.35~test2
Version table:
1:2.5+dfsg-5ubuntu10.35 400
400 http://ports.ubuntu.com/ubuntu-ports xenial-proposed/main ppc64el Packages
*** 1:2.5+dfsg-5ubuntu10.35~test2 500
500 http://ppa.launchpad.net/ubuntu-security-proposed/ppa/ubuntu xenial/main ppc64el Packages
100 /var/lib/dpkg/status
1:2.5+dfsg-5ubuntu10.34 500
500 http://us.ports.ubuntu.com/ubuntu-ports xenial-updates/main ppc64el Packages
1:2.5+dfsg-5ubuntu10.33 500
500 http://ports.ubuntu.com/ubuntu-ports xenial-security/main ppc64el Packages
1:2.5+dfsg-5ubuntu10 500
500 http://us.ports.ubuntu.com/ubuntu-ports xenial/main ppc64el Packages

Guest:

#kvm -M pseries,cap-sbbc=workaround,cap-cfpc=workaround,cap-ibs=fixed-ccd -smp 4 -m 8192 -serial mon:stdio -enable-kvm -vga none -nographic /home/ubuntu-16.04.4-ppc64le.qcow2

SLOF **********************************************************************
QEMU Starting
Build Date = Dec 21 2017 00:39:26
FW Version = buildd@ release 20151103
Press "s" to enter Open Firmware.
...
...
root@guest:~# dmesg|grep rfi
[ 0.000000] rfi-flush: fallback displacement flush available
[ 0.000000] rfi-flush: ori type flush available
[ 0.000000] rfi-flush: mttrig type flush available
[ 0.000000] rfi-flush: patched 10 locations (ori+mttrig type flush)

root@guest:~# uname -a
Linux guest 4.15.0-26-generic #28~16.04.1-Ubuntu SMP Thu Jul 5 09:29:59 UTC 2018 ppc64le ppc64le ppc64le GNU/Linux

root@guest:~# cat /sys/kernel/debug/powerpc/rfi_flush
1

Regards,
-Satheesh