arch/x86/include/asm/xen/events.h

   1 #ifndef _ASM_X86_XEN_EVENTS_H
   2 #define _ASM_X86_XEN_EVENTS_H
   3
   4 enum ipi_vector {
   5         XEN_RESCHEDULE_VECTOR,
   6         XEN_CALL_FUNCTION_VECTOR,
   7         XEN_CALL_FUNCTION_SINGLE_VECTOR,
   8         XEN_SPIN_UNLOCK_VECTOR,
   9         XEN_IRQ_WORK_VECTOR,
  10         XEN_NMI_VECTOR,
  11
  12         XEN_NR_IPIS,
  13 };
  14
  15 static inline int xen_irqs_disabled(struct pt_regs *regs)
  16 {
  17         return raw_irqs_disabled_flags(regs->flags);
  18 }
  19
  20 /* No need for a barrier -- XCHG is a barrier on x86. */
  21 #define xchg_xen_ulong(ptr, val) xchg((ptr), (val))
  22
  23 extern int xen_have_vector_callback;
  24
  25 /*
  26  * Events delivered via platform PCI interrupts are always
  27  * routed to vcpu 0 and hence cannot be rebound.
  28  */
  29 static inline bool xen_support_evtchn_rebind(void)
  30 {
  31         return (!xen_hvm_domain() || xen_have_vector_callback);
  32 }
  33
  34 #endif /* _ASM_X86_XEN_EVENTS_H */