[PATCH] riscv: Add ERRATA_MIPS_P8700_WFI to replace WFI with mips.pause

Maciej W. Rozycki macro at orcam.me.uk
Fri May 22 04:22:14 PDT 2026


On Wed, 20 May 2026, Aleksa Paunovic wrote:

> >> The MIPS P8700 has bugs with the WFI instruction.
> > Has MIPS published an erratum for this?   If so, could you add a link to
> > it in the patch description?  If not, could you please briefly describe
> > the impact of the bug in the patch description, when WFI is used?
> 
> MIPS has not published an erratum for this. Briefly, a WFI instruction
> after a mispredicted branch can result in erroneous address translation.

 Shouldn't this be recorded next to actual code rather just the commit 
description?

  Maciej



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