1 files changed, 35 insertions, 0 deletions
diff --git a/arch/x86/include/asm/xen/events.h b/arch/x86/include/asm/xen/events.h
new file mode 100644
index 000000000..d383140e1
--- /dev/null
+++ b/arch/x86/include/asm/xen/events.h
@@ -0,0 +1,35 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ASM_X86_XEN_EVENTS_H
+#define _ASM_X86_XEN_EVENTS_H
+
+enum ipi_vector {
+	XEN_RESCHEDULE_VECTOR,
+	XEN_CALL_FUNCTION_VECTOR,
+	XEN_CALL_FUNCTION_SINGLE_VECTOR,
+	XEN_SPIN_UNLOCK_VECTOR,
+	XEN_IRQ_WORK_VECTOR,
+	XEN_NMI_VECTOR,
+
+	XEN_NR_IPIS,
+};
+
+static inline int xen_irqs_disabled(struct pt_regs *regs)
+{
+	return raw_irqs_disabled_flags(regs->flags);
+}
+
+/* No need for a barrier -- XCHG is a barrier on x86. */
+#define xchg_xen_ulong(ptr, val) xchg((ptr), (val))
+
+extern int xen_have_vector_callback;
+
+/*
+ * Events delivered via platform PCI interrupts are always
+ * routed to vcpu 0 and hence cannot be rebound.
+ */
+static inline bool xen_support_evtchn_rebind(void)
+{
+	return (!xen_hvm_domain() || xen_have_vector_callback);
+}
+
+#endif /* _ASM_X86_XEN_EVENTS_H */