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 */ 49