1 /* SPDX-License-Identifier: GPL-2.0 */
2 #ifndef _ASM_X86_XEN_EVENTS_H
3 #define _ASM_X86_XEN_EVENTS_H
4
5 #include <xen/xen.h>
6
7 enum ipi_vector {
8 XEN_RESCHEDULE_VECTOR,
9 XEN_CALL_FUNCTION_VECTOR,
10 XEN_CALL_FUNCTION_SINGLE_VECTOR,
11 XEN_SPIN_UNLOCK_VECTOR,
12 XEN_IRQ_WORK_VECTOR,
13 XEN_NMI_VECTOR,
14
15 XEN_NR_IPIS,
16 };
17
18 static inline int xen_irqs_disabled(struct pt_regs *regs)
19 {
20 return raw_irqs_disabled_flags(regs->flags);
21 }
22
23 /* No need for a barrier -- XCHG is a barrier on x86. */
24 #define xchg_xen_ulong(ptr, val) xchg((ptr), (val))
25
26 extern bool xen_have_vector_callback;
27
28 /*
29 * Events delivered via platform PCI interrupts are always
30 * routed to vcpu 0 and hence cannot be rebound.
31 */
32 static inline bool xen_support_evtchn_rebind(void)
33 {
34 return (!xen_hvm_domain() || xen_have_vector_callback);
35 }
36
37 extern bool xen_percpu_upcall;
38 #endif /* _ASM_X86_XEN_EVENTS_H */
39
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