[coreboot-gerrit] Change in coreboot[master]: x86/lapic: Set EXTINT on BSP only

[Michał Żygowski (Code Review)]

Michał Żygowski has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/42434 )

Change subject: x86/lapic: Set EXTINT on BSP only
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Patch Set 4:
> I will test on few platforms here and there to see whether it changes anything. What is the scale of the delay between SeaBIOS and Linux screen?

I took a quick test on Protectli FW6. With the change proposed by me above, the time between SeaBIOS screen and Linux login screen is shorter (even by few seconds). Let me know what your results are. Also this issue is somehow related the the Xen booting problem we had on apu2: https://github.com/pcengines/apu2-documentation/issues/109
I will run some statistical tests whether it fixes the problem. Hopefully this will be an useful input.