[coreboot] Reducing the boot time
nico.h at gmx.de
Tue Aug 14 20:59:02 CEST 2018
On 11.08.2018 12:55, Antony AbeePrakash X V wrote:
> Coreboot FSP Performance Data
> ID: 950 - 951: 8118676370 - 2354813461 --> 4433ms (TS_FSP_MEMORY_INIT_START - TS_FSP_MEMORY_INIT_END)
> ID: 952 - 953: 10675414728 - 8905813067 --> 1361ms (TS_FSP_TEMP_RAM_EXIT_START - TS_FSP_TEMP_RAM_EXIT_END)
> ID: 954 - 955: 11761158519 - 10934089420 --> 636ms (TS_FSP_SILICON_INIT_START - TS_FSP_SILICON_INIT_END)
> ID: 956 - 957: 19265617974 - 19265559282 --> 0ms (TS_FSP_BEFORE_ENUMERATE - TS_FSP_AFTER_ENUMERATE)
given that Google uses the same SoC for Chromebooks, I would expect
about ten times faster numbers.
What FSP binary do you use? There is one in Intel's FSP GitHub repo.
Maybe try that one if you haven't already. I know there are also bina-
ries with additional debugging enabled; that might slow things down.
> Can we reduce the above mentioned time taken by modifying the FSP source ? Please advice.
Questions about the FSP source are better directed towards Intel. They
do not want this community to know the source.
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