1# -*- mode:python -*-
2
3# Copyright (c) 2014, 2016-2018 ARM Limited
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37#
38# Authors: Andreas Sandberg
39
40from m5.SimObject import SimObject
41from m5.params import *
42from m5.proxy import *
43
44from m5.objects.Device import BasicPioDevice
45from m5.objects.Gic import ArmInterruptPin
46from m5.objects.VirtIO import VirtIODeviceBase, VirtIODummyDevice
47
48class MmioVirtIO(BasicPioDevice):
49    type = 'MmioVirtIO'
50    cxx_header = 'dev/arm/vio_mmio.hh'
51
52    pio_size = Param.Addr(4096, "IO range")
53    interrupt = Param.ArmInterruptPin("Interrupt to use for this device")
54
55    vio = Param.VirtIODeviceBase(VirtIODummyDevice(), "VirtIO device")
56
57    def generateDeviceTree(self, state):
58        node = self.generateBasicPioDeviceNode(state, 'virtio', self.pio_addr,
59                                               int(self.pio_size), [
60                                                   int(self.interrupt.num),
61                                               ])
62        node.appendCompatible(["virtio,mmio"])
63        yield node
64