[S] Change in coreboot[master]: soc/intel/meteorlake: Select X86_INIT_NEED_1_SIPI Kconfig

[Subrata Banik (Code Review)]

Attention is currently required from: Tarun Tuli, Kapil Porwal, Arthur Heymans.

Subrata Banik has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/69851 )

Change subject: soc/intel/meteorlake: Select X86_INIT_NEED_1_SIPI Kconfig
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Patch Set 3:

(1 comment)

Patchset:

PS3:
> Those benefits come entirely from skipping that "Waiting for 10ms after sending INIT.", not from skipping a SIPI init. Intel 64 and IA-32 architecture software developers' manual specifies this in Table 8-1. Is there any spec saying this is not needed? On Linux it's for instance always done.

You can refer to the Intel Technical White Paper number:751003 for more details.

Intel will update the SDM going forward to reflect the same going forward (this is what I heard from Intel).