> Hi, > > Last year sephe implemented MADT enumeration for i386. These changes > were missing for x86_64. I ported them to x86_64 and now my HP Compaq > 6710b laptop is booting SMP (without APIC_IO) on x86_64. I'd like to > commit the changes if no one objects. Almost all changes are identical > to what sephe made. > > http://leaf.dragonflybsd.org/~mneumann/madt_enum.patch > http://leaf.dragonflybsd.org/~mneumann/madt_enum.diff > > If you give me go, I'll commit.
I'd like to note while my laptop works using the original MADT enumeration for i386, APIC_IO has to be disabled otherwise it panics. I believe FreeBSD doesn't even have an APIC_IO option in the config. Shouldn't "options SMP" and APIC_IO be merged? I can't remember how many times I accidently compiled kernel with APIC_IO and screwed up. Isn't there a way to detect if APIC_IO can be used on particular hardware and turn it on/off as necessary? What do other operating systems do? If this could be improved for 2.8 it would be great. Thanks, Petr
