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37 lines
828 B
37 lines
828 B
/* SPDX-License-Identifier: GPL-2.0 */ |
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#ifndef _ASM_X86_XEN_EVENTS_H |
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#define _ASM_X86_XEN_EVENTS_H |
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#include <xen/xen.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_IRQ_WORK_VECTOR, |
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XEN_NMI_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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/* No need for a barrier -- XCHG is a barrier on x86. */ |
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#define xchg_xen_ulong(ptr, val) xchg((ptr), (val)) |
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extern int xen_have_vector_callback; |
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/* |
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* Events delivered via platform PCI interrupts are always |
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* routed to vcpu 0 and hence cannot be rebound. |
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*/ |
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static inline bool xen_support_evtchn_rebind(void) |
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{ |
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return (!xen_hvm_domain() || xen_have_vector_callback); |
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} |
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#endif /* _ASM_X86_XEN_EVENTS_H */
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