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/*
* IO Hub for remote device
*
* Copyright © 2018, 2021 Oracle and/or its affiliates.
*
* This work is licensed under the terms of the GNU GPL, version 2 or later.
* See the COPYING file in the top-level directory.
*
*/
#ifndef REMOTE_IOHUB_H
#define REMOTE_IOHUB_H
#include "hw/pci/pci.h"
#include "qemu/event_notifier.h"
#include "qemu/thread-posix.h"
#include "hw/remote/mpqemu-link.h"
#define REMOTE_IOHUB_NB_PIRQS PCI_DEVFN_MAX
typedef struct ResampleToken {
void *iohub;
int pirq;
} ResampleToken;
typedef struct RemoteIOHubState {
PCIDevice d;
EventNotifier irqfds[REMOTE_IOHUB_NB_PIRQS];
EventNotifier resamplefds[REMOTE_IOHUB_NB_PIRQS];
unsigned int irq_level[REMOTE_IOHUB_NB_PIRQS];
ResampleToken token[REMOTE_IOHUB_NB_PIRQS];
QemuMutex irq_level_lock[REMOTE_IOHUB_NB_PIRQS];
} RemoteIOHubState;
int remote_iohub_map_irq(PCIDevice *pci_dev, int intx);
void remote_iohub_set_irq(void *opaque, int pirq, int level);
void process_set_irqfd_msg(PCIDevice *pci_dev, MPQemuMsg *msg);
void remote_iohub_init(RemoteIOHubState *iohub);
void remote_iohub_finalize(RemoteIOHubState *iohub);
#endif
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