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Enable ARM architected timer event stream generation
Closed, WontfixPublic


In the past, we've seen tests timing out because some/all cores were stuck in WFE state.

Ideally, the tests should be implemented in a robust manner that prevents this situation to occur. As a safeguard, we might want to enable the ARM architected timer event stream generation. This is a feature of the ARM architected timer (enabled through the CNTKCTL_EL1.EVNTEN bit) which makes it generate a WFE-wake up event at a fixed frequency (represented as a power-of-2 divisor of the clock rate).

Event Timeline

On the other hand, this might just hide issues. This ticket needs more thoughts.

sandrine-bailleux-arm closed this task as Wontfix.Dec 19 2019, 12:14 PM