Excerpts from Segher Boessenkool's message of June 17, 2021 9:37 am: > On Tue, Jun 15, 2021 at 09:05:27AM +1000, Paul Mackerras wrote: >> This ensures that we don't get a decrementer interrupt arriving before >> we have set up a handler for it. > > Maybe add a comment saying this is setting MSR[EE]=0 for that? Or do > other bits here matter as well?
Hmm, it actually clears MSR[RI] as well. __hard_irq_disable() is what we want here, unless the MSR[RI] clearing is required as well, in which case there is __hard_EE_RI_disable(). Thanks, Nick