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c8217b8305
halt() should use native_halt()
safe_halt() uses native_safe_halt()
If CONFIG_PARAVIRT=y, halt() is defined in arch/x86/include/asm/paravirt.h as
static inline void halt(void)
{
PVOP_VCALL0(pv_irq_ops.safe_halt);
}
Otherwise (no CONFIG_PARAVIRT) halt() in arch/x86/include/asm/irqflags.h is
static inline void halt(void)
{
native_halt();
}
So it looks to me like the CONFIG_PARAVIRT case of using native_safe_halt()
for a halt() is an oversight.
Am I missing something?
It probably hasn't shown up as a problem because the local apic is disabled
on a shutdown or restart. But if we disable interrupts and call halt()
we shouldn't expect that the halt() will re-enable interrupts.
Signed-off-by: Cliff Wickman <cpw@sgi.com>
LKML-Reference: <E1PSBcz-0001g1-FM@eag09.americas.sgi.com>
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
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