:You can use the LAPIC and IOAPIC(s) on UP hardware as well. : :> At the moment only one or the other can be included. It would not :> take a whole lot of work to allow both to be included, then figure out :> which one to use at run time during early boot. :> To do this, the MachIntrABI structure needs to be declared generically :> and then loaded with either the icu or the apic ABI. Right now the :> structure is declared in the icu and the apic code (so only one can be :> included). : :So this won't be necessary :). : :Cheers, :-- : Thomas E. Spanjaard
Only newer cpus have APICs and IOAPICs regardless of whether they are SMP-capable or not. Older ones do not. -Matt