No IBRS flag visible on cpu after side-channel patch
Issue
On the hypervisor I installed microcode_ctl
in version: microcode_ctl-2.1-22.2.el7.x86_64
.
After the reboot I see that microcode in /proc/cpuinfo
changed from 0x25
to 0x3b
after the reboot.
However virsh -r capabilities
shows no ibrs in the output.
Environment
RHV-M 4.1 with hypervisors 7.4
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