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
7enum 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
18static 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
26extern int 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 */
32static inline bool xen_support_evtchn_rebind(void)
33{
34 return (!xen_hvm_domain() || xen_have_vector_callback);
35}
36
37#endif /* _ASM_X86_XEN_EVENTS_H */
38