1 /* 2 * libqos virtio PCI definitions 3 * 4 * Copyright (c) 2014 Marc Marí 5 * 6 * This work is licensed under the terms of the GNU GPL, version 2 or later. 7 * See the COPYING file in the top-level directory. 8 */ 9 10 #ifndef LIBQOS_VIRTIO_PCI_H 11 #define LIBQOS_VIRTIO_PCI_H 12 13 #include "libqos/virtio.h" 14 #include "libqos/pci.h" 15 #include "libqos/qgraph.h" 16 17 typedef struct QVirtioPCIDevice { 18 QOSGraphObject obj; 19 QVirtioDevice vdev; 20 QPCIDevice *pdev; 21 QPCIBar bar; 22 uint16_t config_msix_entry; 23 uint64_t config_msix_addr; 24 uint32_t config_msix_data; 25 } QVirtioPCIDevice; 26 27 typedef struct QVirtQueuePCI { 28 QVirtQueue vq; 29 uint16_t msix_entry; 30 uint64_t msix_addr; 31 uint32_t msix_data; 32 } QVirtQueuePCI; 33 34 extern const QVirtioBus qvirtio_pci; 35 36 void virtio_pci_init(QVirtioPCIDevice *dev, QPCIBus *bus, QPCIAddress * addr); 37 QVirtioPCIDevice *virtio_pci_new(QPCIBus *bus, QPCIAddress * addr); 38 39 /* virtio-pci object functions available for subclasses that 40 * override the original start_hw and destroy 41 * function. All virtio-xxx-pci subclass that override must 42 * take care of calling these two functions in the respective 43 * places 44 */ 45 void qvirtio_pci_destructor(QOSGraphObject *obj); 46 void qvirtio_pci_start_hw(QOSGraphObject *obj); 47 48 49 void qvirtio_pci_device_enable(QVirtioPCIDevice *d); 50 void qvirtio_pci_device_disable(QVirtioPCIDevice *d); 51 52 void qvirtio_pci_set_msix_configuration_vector(QVirtioPCIDevice *d, 53 QGuestAllocator *alloc, uint16_t entry); 54 void qvirtqueue_pci_msix_setup(QVirtioPCIDevice *d, QVirtQueuePCI *vqpci, 55 QGuestAllocator *alloc, uint16_t entry); 56 #endif 57