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57ed038ad9
Add virtio-mmio node in qgraph framework. virtio-mmio produces virtio-bus, the interface consumed by all virtio-*-device nodes. Being a memory-mapped device, it doesn't have to provide a constructor to qgraph, since it's always "contained" inside some other nodes. Signed-off-by: Emanuele Giuseppe Esposito <e.emanuelegiuseppe@gmail.com> Reviewed-by: Laurent Vivier <lvivier@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
51 lines
1.6 KiB
C
51 lines
1.6 KiB
C
/*
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* libqos virtio MMIO 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_MMIO_H
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#define LIBQOS_VIRTIO_MMIO_H
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#include "libqos/virtio.h"
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#include "libqos/qgraph.h"
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#define QVIRTIO_MMIO_MAGIC_VALUE 0x000
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#define QVIRTIO_MMIO_VERSION 0x004
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#define QVIRTIO_MMIO_DEVICE_ID 0x008
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#define QVIRTIO_MMIO_VENDOR_ID 0x00C
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#define QVIRTIO_MMIO_HOST_FEATURES 0x010
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#define QVIRTIO_MMIO_HOST_FEATURES_SEL 0x014
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#define QVIRTIO_MMIO_GUEST_FEATURES 0x020
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#define QVIRTIO_MMIO_GUEST_FEATURES_SEL 0x024
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#define QVIRTIO_MMIO_GUEST_PAGE_SIZE 0x028
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#define QVIRTIO_MMIO_QUEUE_SEL 0x030
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#define QVIRTIO_MMIO_QUEUE_NUM_MAX 0x034
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#define QVIRTIO_MMIO_QUEUE_NUM 0x038
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#define QVIRTIO_MMIO_QUEUE_ALIGN 0x03C
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#define QVIRTIO_MMIO_QUEUE_PFN 0x040
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#define QVIRTIO_MMIO_QUEUE_NOTIFY 0x050
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#define QVIRTIO_MMIO_INTERRUPT_STATUS 0x060
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#define QVIRTIO_MMIO_INTERRUPT_ACK 0x064
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#define QVIRTIO_MMIO_DEVICE_STATUS 0x070
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#define QVIRTIO_MMIO_DEVICE_SPECIFIC 0x100
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typedef struct QVirtioMMIODevice {
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QOSGraphObject obj;
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QVirtioDevice vdev;
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QTestState *qts;
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uint64_t addr;
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uint32_t page_size;
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uint32_t features; /* As it cannot be read later, save it */
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} QVirtioMMIODevice;
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extern const QVirtioBus qvirtio_mmio;
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void qvirtio_mmio_init_device(QVirtioMMIODevice *dev, QTestState *qts,
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uint64_t addr, uint32_t page_size);
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#endif
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