linux/arch/x86/kvm/irq_comm.c

// SPDX-License-Identifier: GPL-2.0-only
/*
 * irq_comm.c: Common API for in kernel interrupt controller
 * Copyright (c) 2007, Intel Corporation.
 *
 * Authors:
 *   Yaozu (Eddie) Dong <[email protected]>
 *
 * Copyright 2010 Red Hat, Inc. and/or its affiliates.
 */
#define pr_fmt(fmt) …

#include <linux/kvm_host.h>
#include <linux/slab.h>
#include <linux/export.h>
#include <linux/rculist.h>

#include <trace/events/kvm.h>

#include "irq.h"

#include "ioapic.h"

#include "lapic.h"

#include "hyperv.h"
#include "x86.h"
#include "xen.h"

static int kvm_set_pic_irq(struct kvm_kernel_irq_routing_entry *e,
			   struct kvm *kvm, int irq_source_id, int level,
			   bool line_status)
{ … }

static int kvm_set_ioapic_irq(struct kvm_kernel_irq_routing_entry *e,
			      struct kvm *kvm, int irq_source_id, int level,
			      bool line_status)
{ … }

int kvm_irq_delivery_to_apic(struct kvm *kvm, struct kvm_lapic *src,
		struct kvm_lapic_irq *irq, struct dest_map *dest_map)
{ … }

void kvm_set_msi_irq(struct kvm *kvm, struct kvm_kernel_irq_routing_entry *e,
		     struct kvm_lapic_irq *irq)
{ … }
EXPORT_SYMBOL_GPL(…);

static inline bool kvm_msi_route_invalid(struct kvm *kvm,
		struct kvm_kernel_irq_routing_entry *e)
{ … }

int kvm_set_msi(struct kvm_kernel_irq_routing_entry *e,
		struct kvm *kvm, int irq_source_id, int level, bool line_status)
{ … }

#ifdef CONFIG_KVM_HYPERV
static int kvm_hv_set_sint(struct kvm_kernel_irq_routing_entry *e,
		    struct kvm *kvm, int irq_source_id, int level,
		    bool line_status)
{ … }
#endif

int kvm_arch_set_irq_inatomic(struct kvm_kernel_irq_routing_entry *e,
			      struct kvm *kvm, int irq_source_id, int level,
			      bool line_status)
{ … }

int kvm_request_irq_source_id(struct kvm *kvm)
{ … }

void kvm_free_irq_source_id(struct kvm *kvm, int irq_source_id)
{ … }

void kvm_register_irq_mask_notifier(struct kvm *kvm, int irq,
				    struct kvm_irq_mask_notifier *kimn)
{ … }

void kvm_unregister_irq_mask_notifier(struct kvm *kvm, int irq,
				      struct kvm_irq_mask_notifier *kimn)
{ … }

void kvm_fire_mask_notifiers(struct kvm *kvm, unsigned irqchip, unsigned pin,
			     bool mask)
{ … }

bool kvm_arch_can_set_irq_routing(struct kvm *kvm)
{ … }

int kvm_set_routing_entry(struct kvm *kvm,
			  struct kvm_kernel_irq_routing_entry *e,
			  const struct kvm_irq_routing_entry *ue)
{ … }

bool kvm_intr_is_single_vcpu(struct kvm *kvm, struct kvm_lapic_irq *irq,
			     struct kvm_vcpu **dest_vcpu)
{ … }
EXPORT_SYMBOL_GPL(…);

#define IOAPIC_ROUTING_ENTRY(irq) …
#define ROUTING_ENTRY1(irq) …

#define PIC_ROUTING_ENTRY(irq) …
#define ROUTING_ENTRY2(irq) …

static const struct kvm_irq_routing_entry default_routing[] = …;

int kvm_setup_default_irq_routing(struct kvm *kvm)
{ … }

void kvm_arch_post_irq_routing_update(struct kvm *kvm)
{ … }

void kvm_scan_ioapic_routes(struct kvm_vcpu *vcpu,
			    ulong *ioapic_handled_vectors)
{ … }

void kvm_arch_irq_routing_update(struct kvm *kvm)
{ … }