For each bit in GICD_IGROUPR: value 0 means corresponding irq is group0 value 1 means corresponding irq is group 1. Change-Id: I15699d4bc89ff3df0e0bdb41154c0d0989dc2f63 Reviewed-by: Giacomo Travaglini <giacomo.travaglini@arm.com> Reviewed-on: https://gem5-review.googlesource.com/c/13555 Reviewed-by: Andreas Sandberg <andreas.sandberg@arm.com> Maintainer: Andreas Sandberg <andreas.sandberg@arm.com>