Hello,
what is the difference between disabling interrupts and masking
interrupts ? Disabling interrupts is done, AFAIK, with irq_disable().
(see below)
Can someone gives an example of how to mask interrupts
with x86/x86_64 ?
irq_disable() in x86 goes to native_irq_disable(), which
eventually calls assembler "cli" command:
CLI clears the IF bit in the flags.
static inline void native_irq_disable(void)
{
asm volatile("cli": : :"memory");
}
see arch/x86/include/asm/irqflags.h
rgs,
Kevin
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