816cef7d46
send out for testing. The wrong version ended up in the commit. Original description: Don't use the legacy interrupt when deciding how to route IOAPIC pins. On some modern systems not all devices have the PCI interrupt line set, typically the cardbus bridge is affected and it would result in different interrupt vectors used for the same IOAPIC pin. To allow this, simplify the code by checking for an existing match first and only allocate a new entry if that doesn't exist. For the IOAPIC case don't bother with the reserveration on the primary CPU for ISA interrupts, just use them.