linux/virt/kvm/coalesced_mmio.c

// SPDX-License-Identifier: GPL-2.0
/*
 * KVM coalesced MMIO
 *
 * Copyright (c) 2008 Bull S.A.S.
 * Copyright 2009 Red Hat, Inc. and/or its affiliates.
 *
 *  Author: Laurent Vivier <[email protected]>
 *
 */

#include <kvm/iodev.h>

#include <linux/kvm_host.h>
#include <linux/slab.h>
#include <linux/kvm.h>

#include "coalesced_mmio.h"

static inline struct kvm_coalesced_mmio_dev *to_mmio(struct kvm_io_device *dev)
{ … }

static int coalesced_mmio_in_range(struct kvm_coalesced_mmio_dev *dev,
				   gpa_t addr, int len)
{ … }

static int coalesced_mmio_has_room(struct kvm_coalesced_mmio_dev *dev, u32 last)
{ … }

static int coalesced_mmio_write(struct kvm_vcpu *vcpu,
				struct kvm_io_device *this, gpa_t addr,
				int len, const void *val)
{ … }

static void coalesced_mmio_destructor(struct kvm_io_device *this)
{ … }

static const struct kvm_io_device_ops coalesced_mmio_ops = …;

int kvm_coalesced_mmio_init(struct kvm *kvm)
{ … }

void kvm_coalesced_mmio_free(struct kvm *kvm)
{ … }

int kvm_vm_ioctl_register_coalesced_mmio(struct kvm *kvm,
					 struct kvm_coalesced_mmio_zone *zone)
{ … }

int kvm_vm_ioctl_unregister_coalesced_mmio(struct kvm *kvm,
					   struct kvm_coalesced_mmio_zone *zone)
{ … }