diff options
Diffstat (limited to 'src/dev/x86/Pc.py')
-rw-r--r-- | src/dev/x86/Pc.py | 83 |
1 files changed, 83 insertions, 0 deletions
diff --git a/src/dev/x86/Pc.py b/src/dev/x86/Pc.py new file mode 100644 index 000000000..6f315cbcb --- /dev/null +++ b/src/dev/x86/Pc.py @@ -0,0 +1,83 @@ +# Copyright (c) 2008 The Regents of The University of Michigan +# All rights reserved. +# +# 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: Gabe Black + +from m5.params import * +from m5.proxy import * + +from Device import IsaFake +from Pci import PciConfigAll +from Platform import Platform +from SouthBridge import SouthBridge +from Terminal import Terminal +from Uart import Uart8250 + +def x86IOAddress(port): + IO_address_space_base = 0x8000000000000000 + return IO_address_space_base + port; + +class Pc(Platform): + type = 'Pc' + system = Param.System(Parent.any, "system") + + pciconfig = PciConfigAll() + + south_bridge = SouthBridge() + + # "Non-existant" port used for timing purposes by the linux kernel + i_dont_exist = IsaFake(pio_addr=x86IOAddress(0x80), pio_size=1) + + # Ports behind the pci config and data regsiters. These don't do anything, + # but the linux kernel fiddles with them anway. + behind_pci = IsaFake(pio_addr=x86IOAddress(0xcf8), pio_size=8) + + # Serial port and terminal + terminal = Terminal() + com_1 = Uart8250() + com_1.pio_addr = x86IOAddress(0x3f8) + com_1.terminal = terminal + + # Devices to catch access to non-existant serial ports. + fake_com_2 = IsaFake(pio_addr=x86IOAddress(0x2f8), pio_size=8) + fake_com_3 = IsaFake(pio_addr=x86IOAddress(0x3e8), pio_size=8) + fake_com_4 = IsaFake(pio_addr=x86IOAddress(0x2e8), pio_size=8) + + # A device to catch accesses to the non-existant floppy controller. + fake_floppy = IsaFake(pio_addr=x86IOAddress(0x3f2), pio_size=2) + + def attachIO(self, bus): + self.south_bridge.attachIO(bus) + self.i_dont_exist.pio = bus.port + self.behind_pci.pio = bus.port + self.com_1.pio = bus.port + self.fake_com_2.pio = bus.port + self.fake_com_3.pio = bus.port + self.fake_com_4.pio = bus.port + self.fake_floppy.pio = bus.port + self.pciconfig.pio = bus.default + bus.responder_set = True + bus.responder = self.pciconfig |