This series doesn't seem to touch mcounteren.TM which should be hardwired
to zero if no callback in provided, and writable otherwise. (I had a patch
to do the hardwiring unconditionally, but it seems to have been
accidentally dropped.) Other than that, I think the design is quite good.
Jonathan
This series adds emulation of TIME CSRs for privileged mode. With
this series, we see approximately 25+% improvement in hackbench
numbers for non-virtualized (or Host) Linux and 40+% improvement
in hackbench numbers for Guest/VM Linux.
These patches are based on
