include/hw/remote/proxy.h

   1 /*
   2  * Copyright © 2018, 2021 Oracle and/or its affiliates.
   3  *
   4  * This work is licensed under the terms of the GNU GPL, version 2 or later.
   5  * See the COPYING file in the top-level directory.
   6  *
   7  */
   8
   9 #ifndef PROXY_H
  10 #define PROXY_H
  11
  12 #include "hw/pci/pci.h"
  13 #include "io/channel.h"
  14 #include "hw/remote/proxy-memory-listener.h"
  15 #include "qemu/event_notifier.h"
  16
  17 #define TYPE_PCI_PROXY_DEV "x-pci-proxy-dev"
  18 OBJECT_DECLARE_SIMPLE_TYPE(PCIProxyDev, PCI_PROXY_DEV)
  19
  20 typedef struct ProxyMemoryRegion {
  21     PCIProxyDev *dev;
  22     MemoryRegion mr;
  23     bool memory;
  24     bool present;
  25     uint8_t type;
  26 } ProxyMemoryRegion;
  27
  28 struct PCIProxyDev {
  29     PCIDevice parent_dev;
  30     char *fd;
  31
  32     /*
  33      * Mutex used to protect the QIOChannel fd from
  34      * the concurrent access by the VCPUs since proxy
  35      * blocks while awaiting for the replies from the
  36      * process remote.
  37      */
  38     QemuMutex io_mutex;
  39     QIOChannel *ioc;
  40     Error *migration_blocker;
  41     ProxyMemoryListener proxy_listener;
  42     int virq;
  43     EventNotifier intr;
  44     EventNotifier resample;
  45     ProxyMemoryRegion region[PCI_NUM_REGIONS];
  46 };
  47
  48 #endif /* PROXY_H */