Is user + kernel counting supported for the fixed PMCs?

[travisdowns]

I'm using the fixed UNHALTED_CYCLES event in uarch-bench but it is counting only user-cycles, not kernel cycles.

To fix travisdowns/uarch-bench#34 I'd like it to count both. Do you know if this is even possible with the fixed PMCs, and can libpfc be told to do that?

Don't do any work to support this, just curious if you knew if it's already possible.

[obilaniu]

@travisdowns The answer is "Yes"!

The code that supports it is here. You just need to add :a to the config string. The default is implicitly :u.

EDIT and for the fixed-function counters, a full enable is 3. Bit 0 is kernel-mode enable, Bit 1 is user-mode enable.