Catch DMI warnings from fastmodel, and abort the simulation when they happen (instead of slowing down simulation). This is controlled by an exit_on_dmi_warning flag passed to fm.setup_simulation, defaulting to false. Change-Id: I07fbc9b2579989d40d601ff0b6af9bfe719309a1 Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/67235 Reviewed-by: Gabe Black <gabe.black@gmail.com> Maintainer: Gabe Black <gabe.black@gmail.com> Tested-by: kokoro <noreply+kokoro@google.com>