Software Tuning, Performance Optimization & Platform Monitoring
Discussion regarding monitoring and software tuning methodologies, Performance Monitoring Unit (PMU) of Intel microprocessors, and platform updating.
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how to access i3c controller to read SPD in Sapphire rapids.

nl_jk
Beginner
‎10-16-2025 01:19 PM
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Hi, 

 

I realized that OS can't write I3C registers (MMIO). 

So, I am trying to use mailbox. is it possible? 

if possible, please give me some reference. 

 

Thanks,

NL_JK

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