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/*
* libqos virtio PCI definitions
*
* Copyright (c) 2014 Marc Marí
*
* 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 "libqos/virtio.h"
#include "libqos/pci.h"
#define QVIRTIO_DEVICE_FEATURES 0x00
#define QVIRTIO_GUEST_FEATURES 0x04
#define QVIRTIO_QUEUE_ADDRESS 0x08
#define QVIRTIO_QUEUE_SIZE 0x0C
#define QVIRTIO_QUEUE_SELECT 0x0E
#define QVIRTIO_QUEUE_NOTIFY 0x10
#define QVIRTIO_DEVICE_STATUS 0x12
#define QVIRTIO_ISR_STATUS 0x13
#define QVIRTIO_MSIX_CONF_VECTOR 0x14
#define QVIRTIO_MSIX_QUEUE_VECTOR 0x16
#define QVIRTIO_DEVICE_SPECIFIC_MSIX 0x18
#define QVIRTIO_DEVICE_SPECIFIC_NO_MSIX 0x14
#define QVIRTIO_PCI_ALIGN 4096
#define QVIRTIO_MSI_NO_VECTOR 0xFFFF
typedef struct QVirtioPCIDevice {
QVirtioDevice vdev;
QPCIDevice *pdev;
void *addr;
uint16_t config_msix_entry;
uint64_t config_msix_addr;
uint32_t config_msix_data;
} QVirtioPCIDevice;
typedef struct QVirtQueuePCI {
QVirtQueue vq;
uint16_t msix_entry;
uint64_t msix_addr;
uint32_t msix_data;
} QVirtQueuePCI;
extern const QVirtioBus qvirtio_pci;
void qvirtio_pci_foreach(QPCIBus *bus, uint16_t device_type,
void (*func)(QVirtioDevice *d, void *data), void *data);
QVirtioPCIDevice *qvirtio_pci_device_find(QPCIBus *bus, uint16_t device_type);
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);
#endif
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