diff --git a/arch/x86/include/asm/irqflags.h b/arch/x86/include/asm/irqflags.h index 8c5ae649d2df8..cf7fc2b8e3ce1 100644 --- a/arch/x86/include/asm/irqflags.h +++ b/arch/x86/include/asm/irqflags.h @@ -54,6 +54,26 @@ static __always_inline void native_halt(void) asm volatile("hlt": : :"memory"); } +static __always_inline int native_irqs_disabled_flags(unsigned long flags) +{ + return !(flags & X86_EFLAGS_IF); +} + +static __always_inline unsigned long native_local_irq_save(void) +{ + unsigned long flags = native_save_fl(); + + native_irq_disable(); + + return flags; +} + +static __always_inline void native_local_irq_restore(unsigned long flags) +{ + if (!native_irqs_disabled_flags(flags)) + native_irq_enable(); +} + #endif #ifdef CONFIG_PARAVIRT_XXL