linux/arch/x86/xen/irq.c

// SPDX-License-Identifier: GPL-2.0
#include <linux/hardirq.h>

#include <asm/x86_init.h>

#include <xen/interface/xen.h>
#include <xen/interface/sched.h>
#include <xen/interface/vcpu.h>
#include <xen/features.h>
#include <xen/events.h>

#include <asm/xen/hypercall.h>
#include <asm/xen/hypervisor.h>

#include "xen-ops.h"

/*
 * Force a proper event-channel callback from Xen after clearing the
 * callback mask. We do this in a very simple manner, by making a call
 * down into Xen. The pending flag will be checked by Xen on return.
 */
noinstr void xen_force_evtchn_callback(void)
{ … }

static noinstr void xen_safe_halt(void)
{ … }

static void xen_halt(void)
{ … }

static const typeof(pv_ops) xen_irq_ops __initconst = …;

void __init xen_init_irq_ops(void)
{ … }