/* * Virtio PCI Bindings * * Copyright IBM, Corp. 2007 * Copyright (c) 2009 CodeSourcery * * Authors: * Anthony Liguori <aliguori@us.ibm.com> * Paul Brook <paul@codesourcery.com> * * This work is licensed under the terms of the GNU GPL, version 2. See * the COPYING file in the top-level directory. */ #ifndef QEMU_VIRTIO_PCI_H #define QEMU_VIRTIO_PCI_H #include "virtio-blk.h" #include "virtio-net.h" #include "virtio-serial.h" #include "virtio-scsi.h" /* Performance improves when virtqueue kick processing is decoupled from the * vcpu thread using ioeventfd for some devices. */ #define VIRTIO_PCI_FLAG_USE_IOEVENTFD_BIT 1 #define VIRTIO_PCI_FLAG_USE_IOEVENTFD (1 << VIRTIO_PCI_FLAG_USE_IOEVENTFD_BIT) typedef struct { int virq; unsigned int users; } VirtIOIRQFD; typedef struct { PCIDevice pci_dev; VirtIODevice *vdev; MemoryRegion bar; uint32_t flags; uint32_t class_code; uint32_t nvectors; VirtIOBlkConf blk; NICConf nic; uint32_t host_features; #ifdef CONFIG_LINUX V9fsConf fsconf; #endif virtio_serial_conf serial; virtio_net_conf net; VirtIOSCSIConf scsi; bool ioeventfd_disabled; bool ioeventfd_started; VirtIOIRQFD *vector_irqfd; } VirtIOPCIProxy; void virtio_init_pci(VirtIOPCIProxy *proxy, VirtIODevice *vdev); void virtio_pci_reset(DeviceState *d); /* Virtio ABI version, if we increment this, we break the guest driver. */ #define VIRTIO_PCI_ABI_VERSION 0 #endif