83 lines
3.3 KiB
Python
83 lines
3.3 KiB
Python
# Copyright (c) 2008 The Regents of The University of Michigan
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# All rights reserved.
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#
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions are
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# met: redistributions of source code must retain the above copyright
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# notice, this list of conditions and the following disclaimer;
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# redistributions in binary form must reproduce the above copyright
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# notice, this list of conditions and the following disclaimer in the
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# documentation and/or other materials provided with the distribution;
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# neither the name of the copyright holders nor the names of its
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# contributors may be used to endorse or promote products derived from
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# this software without specific prior written permission.
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#
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# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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#
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# Authors: Gabe Black
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from m5.params import *
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from m5.proxy import *
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from Device import IsaFake
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from Pci import PciConfigAll
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from Platform import Platform
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from SouthBridge import SouthBridge
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from Terminal import Terminal
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from Uart import Uart8250
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def x86IOAddress(port):
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IO_address_space_base = 0x8000000000000000
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return IO_address_space_base + port;
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class Pc(Platform):
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type = 'Pc'
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system = Param.System(Parent.any, "system")
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pciconfig = PciConfigAll()
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south_bridge = SouthBridge()
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# "Non-existant" port used for timing purposes by the linux kernel
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i_dont_exist = IsaFake(pio_addr=x86IOAddress(0x80), pio_size=1)
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# Ports behind the pci config and data regsiters. These don't do anything,
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# but the linux kernel fiddles with them anway.
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behind_pci = IsaFake(pio_addr=x86IOAddress(0xcf8), pio_size=8)
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# Serial port and terminal
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terminal = Terminal()
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com_1 = Uart8250()
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com_1.pio_addr = x86IOAddress(0x3f8)
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com_1.terminal = terminal
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# Devices to catch access to non-existant serial ports.
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fake_com_2 = IsaFake(pio_addr=x86IOAddress(0x2f8), pio_size=8)
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fake_com_3 = IsaFake(pio_addr=x86IOAddress(0x3e8), pio_size=8)
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fake_com_4 = IsaFake(pio_addr=x86IOAddress(0x2e8), pio_size=8)
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# A device to catch accesses to the non-existant floppy controller.
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fake_floppy = IsaFake(pio_addr=x86IOAddress(0x3f2), pio_size=4)
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def attachIO(self, bus):
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self.south_bridge.attachIO(bus)
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self.i_dont_exist.pio = bus.port
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self.behind_pci.pio = bus.port
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self.com_1.pio = bus.port
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self.fake_com_2.pio = bus.port
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self.fake_com_3.pio = bus.port
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self.fake_com_4.pio = bus.port
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self.fake_floppy.pio = bus.port
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self.pciconfig.pio = bus.default
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bus.responder_set = True
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bus.responder = self.pciconfig
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