Nicholas Piggin writes:
> The OPAL call wrapper gets interrupt disabling wrong. It disables
> interrupts just by clearing MSR[EE], which has two problems:
>
> - It doesn't call into the IRQ tracing subsystem, which means tracing
> across OPAL calls does not always notice IRQs have been
The OPAL call wrapper gets interrupt disabling wrong. It disables
interrupts just by clearing MSR[EE], which has two problems:
- It doesn't call into the IRQ tracing subsystem, which means tracing
across OPAL calls does not always notice IRQs have been disabled.
- It doesn't go through the IRQ
The OPAL call wrapper gets interrupt disabling wrong. It disables
interrupts just by clearing MSR[EE], which has two problems:
- It doesn't call into the IRQ tracing subsystem, which means tracing
across OPAL calls does not always notice IRQs have been disabled.
- It doesn't go through the IRQ
