Page MenuHomeFreeBSD

Enable SError exceptions in the kernel
ClosedPublic

Authored by andrew on Aug 9 2021, 5:00 PM.

Details

Summary

These are needed to signal to the kernel when a Reliability,
Availability, and Serviceability (RAS) exception has triggered.

Diff Detail

Repository
R10 FreeBSD src repository
Lint
Automatic diff as part of commit; lint not applicable.
Unit
Automatic diff as part of commit; unit tests not applicable.

Event Timeline

andrew requested review of this revision.Aug 9 2021, 5:00 PM
sys/arm64/arm64/exception.S
86–88

Can an SError interrupt be taken from EL1? If so, I think you need to unmask DAIF_A here or in do_el1h_sync().

sys/arm64/arm64/machdep.c
938

Maybe add serror_enable() or similar to cpufunc.h and use that?

Unmask in the kernel
Add serror_enable

This revision is now accepted and ready to land.Aug 11 2021, 2:57 PM