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bf3c63d201
Add status changing and feature negotiation. Add basic virtqueue support for adding and sending virtqueue requests. Add ISR checking. [Squashed request endianness fix by Greg Kurz <gkurz@linux.vnet.ibm.com> --Stefan] Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com> Signed-off-by: Marc Marí <marc.mari.barcelo@gmail.com> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
44 lines
1.3 KiB
C
44 lines
1.3 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 "libqos/virtio.h"
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#include "libqos/pci.h"
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#define QVIRTIO_DEVICE_FEATURES 0x00
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#define QVIRTIO_GUEST_FEATURES 0x04
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#define QVIRTIO_QUEUE_ADDRESS 0x08
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#define QVIRTIO_QUEUE_SIZE 0x0C
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#define QVIRTIO_QUEUE_SELECT 0x0E
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#define QVIRTIO_QUEUE_NOTIFY 0x10
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#define QVIRTIO_DEVICE_STATUS 0x12
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#define QVIRTIO_ISR_STATUS 0x13
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#define QVIRTIO_MSIX_CONF_VECTOR 0x14
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#define QVIRTIO_MSIX_QUEUE_VECTOR 0x16
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#define QVIRTIO_DEVICE_SPECIFIC_MSIX 0x18
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#define QVIRTIO_DEVICE_SPECIFIC_NO_MSIX 0x14
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#define QVIRTIO_PCI_ALIGN 4096
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typedef struct QVirtioPCIDevice {
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QVirtioDevice vdev;
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QPCIDevice *pdev;
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void *addr;
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} QVirtioPCIDevice;
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extern const QVirtioBus qvirtio_pci;
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void qvirtio_pci_foreach(QPCIBus *bus, uint16_t device_type,
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void (*func)(QVirtioDevice *d, void *data), void *data);
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QVirtioPCIDevice *qvirtio_pci_device_find(QPCIBus *bus, uint16_t device_type);
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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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#endif
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