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-rw-r--r--hw/virtio/virtio-pci.h139
1 files changed, 139 insertions, 0 deletions
diff --git a/hw/virtio/virtio-pci.h b/hw/virtio/virtio-pci.h
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+++ b/hw/virtio/virtio-pci.h
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+/*
+ * 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 "hw/pci/msi.h"
+#include "hw/virtio/virtio-blk.h"
+#include "hw/virtio/virtio-net.h"
+#include "hw/virtio/virtio-rng.h"
+#include "hw/virtio/virtio-serial.h"
+#include "hw/virtio/virtio-scsi.h"
+#include "hw/virtio/virtio-balloon.h"
+#include "hw/virtio/virtio-bus.h"
+#include "hw/virtio/virtio-9p.h"
+
+typedef struct VirtIOPCIProxy VirtIOPCIProxy;
+typedef struct VirtIOBlkPCI VirtIOBlkPCI;
+typedef struct VirtIOSCSIPCI VirtIOSCSIPCI;
+typedef struct VirtIOBalloonPCI VirtIOBalloonPCI;
+
+/* virtio-pci-bus */
+
+typedef struct VirtioBusState VirtioPCIBusState;
+typedef struct VirtioBusClass VirtioPCIBusClass;
+
+#define TYPE_VIRTIO_PCI_BUS "virtio-pci-bus"
+#define VIRTIO_PCI_BUS(obj) \
+ OBJECT_CHECK(VirtioPCIBusState, (obj), TYPE_VIRTIO_PCI_BUS)
+#define VIRTIO_PCI_BUS_GET_CLASS(obj) \
+ OBJECT_GET_CLASS(VirtioPCIBusClass, obj, TYPE_VIRTIO_PCI_BUS)
+#define VIRTIO_PCI_BUS_CLASS(klass) \
+ OBJECT_CLASS_CHECK(VirtioPCIBusClass, klass, TYPE_VIRTIO_PCI_BUS)
+
+/* 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 {
+ MSIMessage msg;
+ int virq;
+ unsigned int users;
+} VirtIOIRQFD;
+
+/*
+ * virtio-pci: This is the PCIDevice which has a virtio-pci-bus.
+ */
+#define TYPE_VIRTIO_PCI "virtio-pci"
+#define VIRTIO_PCI_GET_CLASS(obj) \
+ OBJECT_GET_CLASS(VirtioPCIClass, obj, TYPE_VIRTIO_PCI)
+#define VIRTIO_PCI_CLASS(klass) \
+ OBJECT_CLASS_CHECK(VirtioPCIClass, klass, TYPE_VIRTIO_PCI)
+#define VIRTIO_PCI(obj) \
+ OBJECT_CHECK(VirtIOPCIProxy, (obj), TYPE_VIRTIO_PCI)
+
+typedef struct VirtioPCIClass {
+ PCIDeviceClass parent_class;
+ int (*init)(VirtIOPCIProxy *vpci_dev);
+} VirtioPCIClass;
+
+struct VirtIOPCIProxy {
+ PCIDevice pci_dev;
+ VirtIODevice *vdev;
+ MemoryRegion bar;
+ uint32_t flags;
+ uint32_t class_code;
+ uint32_t nvectors;
+ NICConf nic;
+ uint32_t host_features;
+#ifdef CONFIG_VIRTFS
+ V9fsConf fsconf;
+#endif
+ virtio_serial_conf serial;
+ virtio_net_conf net;
+ VirtIORNGConf rng;
+ bool ioeventfd_disabled;
+ bool ioeventfd_started;
+ VirtIOIRQFD *vector_irqfd;
+ int nvqs_with_notifiers;
+ VirtioBusState bus;
+};
+
+
+/*
+ * virtio-scsi-pci: This extends VirtioPCIProxy.
+ */
+#define TYPE_VIRTIO_SCSI_PCI "virtio-scsi-pci"
+#define VIRTIO_SCSI_PCI(obj) \
+ OBJECT_CHECK(VirtIOSCSIPCI, (obj), TYPE_VIRTIO_SCSI_PCI)
+
+struct VirtIOSCSIPCI {
+ VirtIOPCIProxy parent_obj;
+ VirtIOSCSI vdev;
+};
+
+/*
+ * virtio-blk-pci: This extends VirtioPCIProxy.
+ */
+#define TYPE_VIRTIO_BLK_PCI "virtio-blk-pci"
+#define VIRTIO_BLK_PCI(obj) \
+ OBJECT_CHECK(VirtIOBlkPCI, (obj), TYPE_VIRTIO_BLK_PCI)
+
+struct VirtIOBlkPCI {
+ VirtIOPCIProxy parent_obj;
+ VirtIOBlock vdev;
+ VirtIOBlkConf blk;
+};
+
+/*
+ * virtio-balloon-pci: This extends VirtioPCIProxy.
+ */
+#define TYPE_VIRTIO_BALLOON_PCI "virtio-balloon-pci"
+#define VIRTIO_BALLOON_PCI(obj) \
+ OBJECT_CHECK(VirtIOBalloonPCI, (obj), TYPE_VIRTIO_BALLOON_PCI)
+
+struct VirtIOBalloonPCI {
+ VirtIOPCIProxy parent_obj;
+ VirtIOBalloon vdev;
+};
+
+void virtio_init_pci(VirtIOPCIProxy *proxy, VirtIODevice *vdev);
+void virtio_pci_bus_new(VirtioBusState *bus, VirtIOPCIProxy *dev);
+
+/* Virtio ABI version, if we increment this, we break the guest driver. */
+#define VIRTIO_PCI_ABI_VERSION 0
+
+#endif