root / hw / virtio-pci.h @ b13ce26d
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/*
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* Virtio PCI Bindings
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*
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* Copyright IBM, Corp. 2007
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* Copyright (c) 2009 CodeSourcery
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*
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* Authors:
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* Anthony Liguori <aliguori@us.ibm.com>
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* Paul Brook <paul@codesourcery.com>
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*
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* This work is licensed under the terms of the GNU GPL, version 2. See
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* the COPYING file in the top-level directory.
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*/
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#ifndef QEMU_VIRTIO_PCI_H
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#define QEMU_VIRTIO_PCI_H
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#include "virtio-blk.h" |
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#include "virtio-net.h" |
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#include "virtio-serial.h" |
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#include "virtio-scsi.h" |
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/* Performance improves when virtqueue kick processing is decoupled from the
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* vcpu thread using ioeventfd for some devices. */
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#define VIRTIO_PCI_FLAG_USE_IOEVENTFD_BIT 1 |
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#define VIRTIO_PCI_FLAG_USE_IOEVENTFD (1 << VIRTIO_PCI_FLAG_USE_IOEVENTFD_BIT) |
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typedef struct { |
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int virq;
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unsigned int users; |
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} VirtIOIRQFD; |
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typedef struct { |
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PCIDevice pci_dev; |
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VirtIODevice *vdev; |
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MemoryRegion bar; |
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uint32_t flags; |
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uint32_t class_code; |
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uint32_t nvectors; |
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VirtIOBlkConf blk; |
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NICConf nic; |
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uint32_t host_features; |
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#ifdef CONFIG_LINUX
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V9fsConf fsconf; |
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#endif
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virtio_serial_conf serial; |
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virtio_net_conf net; |
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VirtIOSCSIConf scsi; |
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bool ioeventfd_disabled;
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bool ioeventfd_started;
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VirtIOIRQFD *vector_irqfd; |
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} VirtIOPCIProxy; |
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void virtio_init_pci(VirtIOPCIProxy *proxy, VirtIODevice *vdev);
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void virtio_pci_reset(DeviceState *d);
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/* Virtio ABI version, if we increment this, we break the guest driver. */
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#define VIRTIO_PCI_ABI_VERSION 0 |
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#endif
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