[coreboot] Exception on Skylake after enabling ACPI timer emulation

Piotr Król piotr.krol at 3mdeb.com
Thu May 17 15:39:09 CEST 2018


-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA256



On 05/17/2018 02:11 PM, Banik, Subrata wrote:

Subrata,

> 
> [Subrata] this specific issue, we haven't seen on any KBL/SKL
> system we have. I can double confirm this value tomorrow. For now,
> please try to check if increasing timeout is helping or not?

Values tried:
- - vmx: 2x, sgx: 28x: https://pastebin.com/imRJk7Y8
- - vmx: 4x, sgx: 14x: https://pastebin.com/Rwvcs4XE
- - vmx: 8x, sgx: 14x: https://pastebin.com/TLavR6CN
- - vmx: 2x, sgx: 28x: https://pastebin.com/SdbP0RdG
- - vmx: 32x, sgx: 56x: https://pastebin.com/NsK25Lm5

Not much chageing. Mostly timing of SIPI completion and order of SMRAM
relocation.


> Btw, Can you please send me a complete serial log for my analysis.
> 
Sure:
- - my code base: https://pastebin.com/fRFZTx10
- - with 26286/3: https://pastebin.com/S1n5S8df

I believe this should not be relevant, but I don't have serial enabled
and all logs are dumped to SPI. I'm not sure if SPI controller
interrupts may affect this anyhow.

Best Regards,
- -- 
Piotr Król
Embedded Systems Consultant
https://3mdeb.com | @3mdeb_com
-----BEGIN PGP SIGNATURE-----
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=F1Se
-----END PGP SIGNATURE-----



More information about the coreboot mailing list