On Wed, Apr 19 2023 at 14:38, Thomas Gleixner wrote:
> On Wed, Apr 19 2023 at 11:38, Thomas Gleixner wrote:
> IOW, the BIOS assignes random numbers to the AP APICs for whatever
> raisins, which leaves the parallel startup low level code up a creek
> without a paddle, except for actually reading the APICID back from the
> APIC. *SHUDDER*
So Andrew just pointed out on IRC that this might be related to the
ancient issue of the 3-wire APIC bus where IO/APIC and APIC shared the
ID space, but that system is definitely post 3-wire APIC :)
Thanks,
tglx
