diff --git a/arch/arm64/kernel/entry.S b/arch/arm64/kernel/entry.S index 43a91e0604482160e67740c148498e902f3c82d9..42ca7d43e0402b3e1e3d0cfd9a298e7ed9f5b8e3 100644 --- a/arch/arm64/kernel/entry.S +++ b/arch/arm64/kernel/entry.S @@ -630,7 +630,18 @@ el1_irq: kernel_entry 1 enable_da_f #ifdef CONFIG_TRACE_IRQFLAGS +#ifdef CONFIG_ARM64_PSEUDO_NMI +alternative_if ARM64_HAS_IRQ_PRIO_MASKING + ldr x20, [sp, #S_PMR_SAVE] +alternative_else + mov x20, #GIC_PRIO_IRQON +alternative_endif + cmp x20, #GIC_PRIO_IRQOFF + /* Irqs were disabled, don't trace */ + b.ls 1f +#endif bl trace_hardirqs_off +1: #endif irq_handler @@ -652,8 +663,18 @@ alternative_else_nop_endif 1: #endif #ifdef CONFIG_TRACE_IRQFLAGS +#ifdef CONFIG_ARM64_PSEUDO_NMI + /* + * if IRQs were disabled when we received the interrupt, we have an NMI + * and we are not re-enabling interrupt upon eret. Skip tracing. + */ + cmp x20, #GIC_PRIO_IRQOFF + b.ls 1f +#endif bl trace_hardirqs_on +1: #endif + kernel_exit 1 ENDPROC(el1_irq)