tests/libqos/virtio-pci.h

   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
  16 #define QVIRTIO_DEVICE_FEATURES         0x00
  17 #define QVIRTIO_GUEST_FEATURES          0x04
  18 #define QVIRTIO_QUEUE_ADDRESS           0x08
  19 #define QVIRTIO_QUEUE_SIZE              0x0C
  20 #define QVIRTIO_QUEUE_SELECT            0x0E
  21 #define QVIRTIO_QUEUE_NOTIFY            0x10
  22 #define QVIRTIO_DEVICE_STATUS           0x12
  23 #define QVIRTIO_ISR_STATUS              0x13
  24 #define QVIRTIO_MSIX_CONF_VECTOR        0x14
  25 #define QVIRTIO_MSIX_QUEUE_VECTOR       0x16
  26 #define QVIRTIO_DEVICE_SPECIFIC_MSIX    0x18
  27 #define QVIRTIO_DEVICE_SPECIFIC_NO_MSIX 0x14
  28
  29 #define QVIRTIO_PCI_ALIGN   4096
  30
  31 #define QVIRTIO_MSI_NO_VECTOR   0xFFFF
  32
  33 typedef struct QVirtioPCIDevice {
  34     QVirtioDevice vdev;
  35     QPCIDevice *pdev;
  36     void *addr;
  37     uint16_t config_msix_entry;
  38     uint64_t config_msix_addr;
  39     uint32_t config_msix_data;
  40 } QVirtioPCIDevice;
  41
  42 typedef struct QVirtQueuePCI {
  43     QVirtQueue vq;
  44     uint16_t msix_entry;
  45     uint64_t msix_addr;
  46     uint32_t msix_data;
  47 } QVirtQueuePCI;
  48
  49 extern const QVirtioBus qvirtio_pci;
  50
  51 void qvirtio_pci_foreach(QPCIBus *bus, uint16_t device_type,
  52                 void (*func)(QVirtioDevice *d, void *data), void *data);
  53 QVirtioPCIDevice *qvirtio_pci_device_find(QPCIBus *bus, uint16_t device_type);
  54 void qvirtio_pci_device_enable(QVirtioPCIDevice *d);
  55 void qvirtio_pci_device_disable(QVirtioPCIDevice *d);
  56
  57 void qvirtio_pci_set_msix_configuration_vector(QVirtioPCIDevice *d,
  58                                         QGuestAllocator *alloc, uint16_t entry);
  59 void qvirtqueue_pci_msix_setup(QVirtioPCIDevice *d, QVirtQueuePCI *vqpci,
  60                                         QGuestAllocator *alloc, uint16_t entry);
  61 #endif