Re: x86/smp: adding new trace points

[Wojciech Kudla]

On 13/05/2020 13:24, Thomas Gleixner wrote:

> Why would the SMP call function single interrupt go through the
> PLATFORM_IPI_VECTOR? It goes as the name says through the
> CALL_FUNCTION_SINGLE_VECTOR.
> 

Wrong vector, my bad.

However 2) still stands in my opinion. We don't have "ipi raise" trace point for x86.
RESCHEDULE_VECTOR, CALL_FUNCTION_SINGLE_VECTOR, as well as TLB invalidation vectors are essentially inter-processor-interrupts if I'm not mistaken.
Would a patch adding such trace point be considered here?

Thanks,
Wojtek