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