This will be used by architectures to handle the m5.switchCpus at the ISA level since some ISA specific fields might need to be aware of the TC change. Change-Id: If8d50c5c80bc3458d5f1d14cf93ae107314c98cf Signed-off-by: Giacomo Travaglini <giacomo.travaglini@arm.com> Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/27712 Reviewed-by: Ciro Santilli <ciro.santilli@arm.com> Maintainer: Gabe Black <gabeblack@google.com> Tested-by: kokoro <noreply+kokoro@google.com>