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792dc4f6cd
Rather than overloading vectors for event channels, take full responsibility for mapping an event channel to irq directly. With this patch Xen has its own irq allocator. When the kernel gets an event channel upcall, it maps the event channel number to an irq and injects it into the normal interrupt path. Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
19 lines
352 B
C
19 lines
352 B
C
#ifndef _ASM_X86_XEN_EVENTS_H
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#define _ASM_X86_XEN_EVENTS_H
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enum ipi_vector {
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XEN_RESCHEDULE_VECTOR,
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XEN_CALL_FUNCTION_VECTOR,
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XEN_CALL_FUNCTION_SINGLE_VECTOR,
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XEN_SPIN_UNLOCK_VECTOR,
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XEN_NR_IPIS,
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};
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static inline int xen_irqs_disabled(struct pt_regs *regs)
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{
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return raw_irqs_disabled_flags(regs->flags);
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}
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#endif /* _ASM_X86_XEN_EVENTS_H */
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