[coreboot] AMD platform: IO-APIC => Local APIC delivery modes

[Rudolf Marek]

Hi Andriy,

> An example:
> $ ioapic_wr 3 0xff00000000000300

I tried with minicom and IRQ 4, and I can confirm that NMI is delivered only
when using the redirection entry above. The one 0x0000000000000400  does nothing
in my case. I tested on AMD Hudson chipset, I had to add #include <stdint.h> to
have the proper type defines under Linux.

The NMI arrived to all CPUs, Linux said:

Oct 10 20:51:08 ruik kernel: [  891.596625] Uhhuh. NMI received for unknown
reason 31 on CPU 2.
Oct 10 20:51:08 ruik kernel: [  891.596631] Uhhuh. NMI received for unknown
reason 31 on CPU 1.
Oct 10 20:51:08 ruik kernel: [  891.596633] Uhhuh. NMI received for unknown
reason 31 on CPU 0.
Oct 10 20:51:08 ruik kernel: [  891.596636] Uhhuh. NMI received for unknown
reason 31 on CPU 3.
Oct 10 20:51:08 ruik kernel: [  891.596638] Do you have a strange power saving
mode enabled?
Oct 10 20:51:08 ruik kernel: [  891.596639] Do you have a strange power saving
mode enabled?
Oct 10 20:51:08 ruik kernel: [  891.596644] Do you have a strange power saving
mode enabled?
Oct 10 20:51:08 ruik kernel: [  891.596646] Dazed and confused, but trying to
continue
Oct 10 20:51:08 ruik kernel: [  891.596648] Dazed and confused, but trying to
continue
Oct 10 20:51:08 ruik kernel: [  891.596652] Dazed and confused, but trying to
continue
Oct 10 20:51:08 ruik kernel: [  891.596666] Do you have a strange power saving
mode enabled?
Oct 10 20:51:08 ruik kernel: [  891.596670] Dazed and confused, but trying to
continue

I can try to contact Mr. AMD ask them to at least publish new errata versions.

Thanks
Rudolf