ACPI's MADT describes the interrupt system of a processor/system and partially replaces the Intel MP tables. The config now simply adds the ACPI variant, so an OS can use either Intel MP or ACPI for interrupt configuration. Change-Id: Ie3d293aac0925666f7661a03eab10218f04c8d0c Signed-off-by: Maximilian Stein <m@steiny.biz> Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/42825 Tested-by: kokoro <noreply+kokoro@google.com> Reviewed-by: Jason Lowe-Power <power.jg@gmail.com> Maintainer: Jason Lowe-Power <power.jg@gmail.com>