87 lines
2.6 KiB
C
87 lines
2.6 KiB
C
/*
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* libqos virtio PCI definitions
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*
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* Copyright (c) 2014 Marc Marí
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*
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* This work is licensed under the terms of the GNU GPL, version 2 or later.
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* See the COPYING file in the top-level directory.
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*/
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#ifndef LIBQOS_VIRTIO_PCI_H
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#define LIBQOS_VIRTIO_PCI_H
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#include "virtio.h"
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#include "pci.h"
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#include "qgraph.h"
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typedef struct QVirtioPCIMSIXOps QVirtioPCIMSIXOps;
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typedef struct QVirtioPCIDevice {
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QOSGraphObject obj;
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QVirtioDevice vdev;
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QPCIDevice *pdev;
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QPCIBar bar;
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const QVirtioPCIMSIXOps *msix_ops;
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uint16_t config_msix_entry;
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uint64_t config_msix_addr;
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uint32_t config_msix_data;
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int bar_idx;
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/* VIRTIO 1.0 */
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uint32_t common_cfg_offset;
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uint32_t notify_cfg_offset;
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uint32_t notify_off_multiplier;
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uint32_t isr_cfg_offset;
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uint32_t device_cfg_offset;
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} QVirtioPCIDevice;
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struct QVirtioPCIMSIXOps {
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/* Set the Configuration Vector for MSI-X */
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void (*set_config_vector)(QVirtioPCIDevice *d, uint16_t entry);
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/* Set the Queue Vector for MSI-X */
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void (*set_queue_vector)(QVirtioPCIDevice *d, uint16_t vq_idx,
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uint16_t entry);
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};
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typedef struct QVirtQueuePCI {
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QVirtQueue vq;
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uint16_t msix_entry;
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uint64_t msix_addr;
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uint32_t msix_data;
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/* VIRTIO 1.0 */
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uint64_t notify_offset;
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} QVirtQueuePCI;
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void virtio_pci_init(QVirtioPCIDevice *dev, QPCIBus *bus, QPCIAddress * addr);
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QVirtioPCIDevice *virtio_pci_new(QPCIBus *bus, QPCIAddress * addr);
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/* virtio-pci object functions available for subclasses that
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* override the original start_hw and destroy
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* function. All virtio-xxx-pci subclass that override must
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* take care of calling these two functions in the respective
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* places
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*/
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void qvirtio_pci_destructor(QOSGraphObject *obj);
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void qvirtio_pci_start_hw(QOSGraphObject *obj);
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void qvirtio_pci_device_enable(QVirtioPCIDevice *d);
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void qvirtio_pci_device_disable(QVirtioPCIDevice *d);
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void qvirtio_pci_set_msix_configuration_vector(QVirtioPCIDevice *d,
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QGuestAllocator *alloc, uint16_t entry);
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void qvirtqueue_pci_msix_setup(QVirtioPCIDevice *d, QVirtQueuePCI *vqpci,
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QGuestAllocator *alloc, uint16_t entry);
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/* Used by Legacy and Modern virtio-pci code */
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QVirtQueue *qvirtio_pci_virtqueue_setup_common(QVirtioDevice *d,
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QGuestAllocator *alloc,
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uint16_t index);
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void qvirtio_pci_virtqueue_cleanup_common(QVirtQueue *vq,
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QGuestAllocator *alloc);
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#endif
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