perf cs-etm: Detect pid in VMID for kernel running at EL2

The PID of the task could be traced as VMID when the kernel is running
at EL2.  Teach the decoder to look for VMID when the CONTEXTIDR (Arm32)
or CONTEXTIDR_EL1 (Arm64) is invalid but we have a valid VMID.

Signed-off-by: Suzuki K Poulose <[email protected]>
Co-developed-by: Leo Yan <[email protected]>
Reviewed-by: Mathieu Poirier <[email protected]>
Cc: Al Grant <[email protected]>
Cc: Mike Leach <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Leo Yan <[email protected]>
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>

0 files changed, 0 insertions, 0 deletions