| 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 | |