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Diffstat (limited to 'src/dev/arm/VirtIOMMIO.py')
| -rw-r--r-- | src/dev/arm/VirtIOMMIO.py | 63 |
1 files changed, 63 insertions, 0 deletions
diff --git a/src/dev/arm/VirtIOMMIO.py b/src/dev/arm/VirtIOMMIO.py new file mode 100644 index 000000000..2c95ef3ce --- /dev/null +++ b/src/dev/arm/VirtIOMMIO.py @@ -0,0 +1,63 @@ +# -*- mode:python -*- + +# Copyright (c) 2014, 2016-2018 ARM Limited +# All rights reserved. +# +# The license below extends only to copyright in the software and shall +# not be construed as granting a license to any other intellectual +# property including but not limited to intellectual property relating +# to a hardware implementation of the functionality of the software +# licensed hereunder. You may use the software subject to the license +# terms below provided that you ensure that this notice is replicated +# unmodified and in its entirety in all distributions of the software, +# modified or unmodified, in source code or in binary form. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer; +# redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution; +# neither the name of the copyright holders nor the names of its +# contributors may be used to endorse or promote products derived from +# this software without specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. +# +# Authors: Andreas Sandberg + +from m5.SimObject import SimObject +from m5.params import * +from m5.proxy import * + +from Device import BasicPioDevice +from Gic import ArmInterruptPin +from VirtIO import VirtIODeviceBase, VirtIODummyDevice + +class MmioVirtIO(BasicPioDevice): + type = 'MmioVirtIO' + cxx_header = 'dev/arm/vio_mmio.hh' + + pio_size = Param.Addr(4096, "IO range") + interrupt = Param.ArmInterruptPin("Interrupt to use for this device") + + vio = Param.VirtIODeviceBase(VirtIODummyDevice(), "VirtIO device") + + def generateDeviceTree(self, state): + node = self.generateBasicPioDeviceNode(state, 'virtio', self.pio_addr, + int(self.pio_size), [ + int(self.interrupt.num), + ]) + node.appendCompatible(["virtio,mmio"]) + yield node |