LXR qemu/include/hw/remote/iohub.h

   1/*
   2 * IO Hub for remote device
   3 *
   4 * Copyright © 2018, 2021 Oracle and/or its affiliates.
   5 *
   6 * This work is licensed under the terms of the GNU GPL, version 2 or later.
   7 * See the COPYING file in the top-level directory.
   8 *
   9 */
  10
  11#ifndef REMOTE_IOHUB_H
  12#define REMOTE_IOHUB_H
  13
  14#include "hw/pci/pci.h"
  15#include "qemu/event_notifier.h"
  16#include "qemu/thread-posix.h"
  17#include "hw/remote/mpqemu-link.h"
  18
  19#define REMOTE_IOHUB_NB_PIRQS    PCI_DEVFN_MAX
  20
  21typedef struct ResampleToken {
  22    void *iohub;
  23    int pirq;
  24} ResampleToken;
  25
  26typedef struct RemoteIOHubState {
  27    PCIDevice d;
  28    EventNotifier irqfds[REMOTE_IOHUB_NB_PIRQS];
  29    EventNotifier resamplefds[REMOTE_IOHUB_NB_PIRQS];
  30    unsigned int irq_level[REMOTE_IOHUB_NB_PIRQS];
  31    ResampleToken token[REMOTE_IOHUB_NB_PIRQS];
  32    QemuMutex irq_level_lock[REMOTE_IOHUB_NB_PIRQS];
  33} RemoteIOHubState;
  34
  35int remote_iohub_map_irq(PCIDevice *pci_dev, int intx);
  36void remote_iohub_set_irq(void *opaque, int pirq, int level);
  37void process_set_irqfd_msg(PCIDevice *pci_dev, MPQemuMsg *msg);
  38
  39void remote_iohub_init(RemoteIOHubState *iohub);
  40void remote_iohub_finalize(RemoteIOHubState *iohub);
  41
  42#endif
  43