e1a5522a89
This patch force IO device to be mapped to 0xC0000000-0xFFFF0000 by reserve anything between the end of memory and 3GB if memory is less than 3GB. It also statically bridge these address range to the IO bus, which guaranty access to pci address space will pass though bridge to iobus. Committed by: Nilay Vaish <nilay@cs.wisc.edu>
574 lines
21 KiB
Python
574 lines
21 KiB
Python
# Copyright (c) 2010-2012 ARM Limited
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# All rights reserved.
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#
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# The license below extends only to copyright in the software and shall
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# not be construed as granting a license to any other intellectual
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# property including but not limited to intellectual property relating
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# to a hardware implementation of the functionality of the software
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# licensed hereunder. You may use the software subject to the license
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# terms below provided that you ensure that this notice is replicated
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# unmodified and in its entirety in all distributions of the software,
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# modified or unmodified, in source code or in binary form.
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#
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# Copyright (c) 2010-2011 Advanced Micro Devices, Inc.
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# Copyright (c) 2006-2008 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: Kevin Lim
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from m5.objects import *
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from Benchmarks import *
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from m5.util import *
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class CowIdeDisk(IdeDisk):
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image = CowDiskImage(child=RawDiskImage(read_only=True),
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read_only=False)
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def childImage(self, ci):
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self.image.child.image_file = ci
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class MemBus(CoherentXBar):
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badaddr_responder = BadAddr()
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default = Self.badaddr_responder.pio
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def makeLinuxAlphaSystem(mem_mode, mdesc = None, ruby = False):
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class BaseTsunami(Tsunami):
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ethernet = NSGigE(pci_bus=0, pci_dev=1, pci_func=0)
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ide = IdeController(disks=[Parent.disk0, Parent.disk2],
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pci_func=0, pci_dev=0, pci_bus=0)
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self = LinuxAlphaSystem()
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if not mdesc:
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# generic system
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mdesc = SysConfig()
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self.readfile = mdesc.script()
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self.tsunami = BaseTsunami()
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# Create the io bus to connect all device ports
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self.iobus = NoncoherentXBar()
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self.tsunami.attachIO(self.iobus)
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self.tsunami.ide.pio = self.iobus.master
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self.tsunami.ide.config = self.iobus.master
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self.tsunami.ethernet.pio = self.iobus.master
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self.tsunami.ethernet.config = self.iobus.master
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if ruby:
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# Store the dma devices for later connection to dma ruby ports.
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# Append an underscore to dma_ports to avoid the SimObjectVector check.
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self._dma_ports = [self.tsunami.ide.dma, self.tsunami.ethernet.dma]
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else:
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self.membus = MemBus()
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# By default the bridge responds to all addresses above the I/O
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# base address (including the PCI config space)
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IO_address_space_base = 0x80000000000
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self.bridge = Bridge(delay='50ns',
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ranges = [AddrRange(IO_address_space_base, Addr.max)])
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self.bridge.master = self.iobus.slave
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self.bridge.slave = self.membus.master
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self.tsunami.ide.dma = self.iobus.slave
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self.tsunami.ethernet.dma = self.iobus.slave
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self.system_port = self.membus.slave
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self.mem_ranges = [AddrRange(mdesc.mem())]
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self.disk0 = CowIdeDisk(driveID='master')
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self.disk2 = CowIdeDisk(driveID='master')
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self.disk0.childImage(mdesc.disk())
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self.disk2.childImage(disk('linux-bigswap2.img'))
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self.simple_disk = SimpleDisk(disk=RawDiskImage(image_file = mdesc.disk(),
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read_only = True))
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self.intrctrl = IntrControl()
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self.mem_mode = mem_mode
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self.terminal = Terminal()
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self.kernel = binary('vmlinux')
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self.pal = binary('ts_osfpal')
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self.console = binary('console')
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self.boot_osflags = 'root=/dev/hda1 console=ttyS0'
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return self
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def makeSparcSystem(mem_mode, mdesc = None):
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# Constants from iob.cc and uart8250.cc
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iob_man_addr = 0x9800000000
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uart_pio_size = 8
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class CowMmDisk(MmDisk):
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image = CowDiskImage(child=RawDiskImage(read_only=True),
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read_only=False)
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def childImage(self, ci):
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self.image.child.image_file = ci
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self = SparcSystem()
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if not mdesc:
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# generic system
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mdesc = SysConfig()
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self.readfile = mdesc.script()
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self.iobus = NoncoherentXBar()
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self.membus = MemBus()
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self.bridge = Bridge(delay='50ns')
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self.t1000 = T1000()
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self.t1000.attachOnChipIO(self.membus)
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self.t1000.attachIO(self.iobus)
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self.mem_ranges = [AddrRange(Addr('1MB'), size = '64MB'),
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AddrRange(Addr('2GB'), size ='256MB')]
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self.bridge.master = self.iobus.slave
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self.bridge.slave = self.membus.master
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self.rom.port = self.membus.master
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self.nvram.port = self.membus.master
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self.hypervisor_desc.port = self.membus.master
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self.partition_desc.port = self.membus.master
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self.intrctrl = IntrControl()
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self.disk0 = CowMmDisk()
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self.disk0.childImage(disk('disk.s10hw2'))
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self.disk0.pio = self.iobus.master
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# The puart0 and hvuart are placed on the IO bus, so create ranges
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# for them. The remaining IO range is rather fragmented, so poke
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# holes for the iob and partition descriptors etc.
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self.bridge.ranges = \
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[
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AddrRange(self.t1000.puart0.pio_addr,
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self.t1000.puart0.pio_addr + uart_pio_size - 1),
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AddrRange(self.disk0.pio_addr,
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self.t1000.fake_jbi.pio_addr +
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self.t1000.fake_jbi.pio_size - 1),
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AddrRange(self.t1000.fake_clk.pio_addr,
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iob_man_addr - 1),
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AddrRange(self.t1000.fake_l2_1.pio_addr,
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self.t1000.fake_ssi.pio_addr +
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self.t1000.fake_ssi.pio_size - 1),
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AddrRange(self.t1000.hvuart.pio_addr,
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self.t1000.hvuart.pio_addr + uart_pio_size - 1)
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]
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self.reset_bin = binary('reset_new.bin')
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self.hypervisor_bin = binary('q_new.bin')
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self.openboot_bin = binary('openboot_new.bin')
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self.nvram_bin = binary('nvram1')
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self.hypervisor_desc_bin = binary('1up-hv.bin')
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self.partition_desc_bin = binary('1up-md.bin')
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self.system_port = self.membus.slave
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return self
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def makeArmSystem(mem_mode, machine_type, mdesc = None,
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dtb_filename = None, bare_metal=False):
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assert machine_type
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if bare_metal:
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self = ArmSystem()
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else:
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self = LinuxArmSystem()
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if not mdesc:
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# generic system
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mdesc = SysConfig()
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self.readfile = mdesc.script()
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self.iobus = NoncoherentXBar()
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self.membus = MemBus()
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self.membus.badaddr_responder.warn_access = "warn"
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self.bridge = Bridge(delay='50ns')
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self.bridge.master = self.iobus.slave
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self.bridge.slave = self.membus.master
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self.mem_mode = mem_mode
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if machine_type == "RealView_PBX":
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self.realview = RealViewPBX()
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elif machine_type == "RealView_EB":
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self.realview = RealViewEB()
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elif machine_type == "VExpress_ELT":
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self.realview = VExpress_ELT()
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elif machine_type == "VExpress_EMM":
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self.realview = VExpress_EMM()
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elif machine_type == "VExpress_EMM64":
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self.realview = VExpress_EMM64()
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else:
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print "Unknown Machine Type"
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sys.exit(1)
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self.cf0 = CowIdeDisk(driveID='master')
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self.cf0.childImage(mdesc.disk())
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# Attach any PCI devices this platform supports
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self.realview.attachPciDevices()
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# default to an IDE controller rather than a CF one
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try:
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self.realview.ide.disks = [self.cf0]
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except:
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self.realview.cf_ctrl.disks = [self.cf0]
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if bare_metal:
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# EOT character on UART will end the simulation
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self.realview.uart.end_on_eot = True
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self.mem_ranges = [AddrRange(self.realview.mem_start_addr,
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size = mdesc.mem())]
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else:
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if machine_type == "VExpress_EMM64":
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self.kernel = binary('vmlinux-3.16-aarch64-vexpress-emm64-pcie')
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elif machine_type == "VExpress_EMM":
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self.kernel = binary('vmlinux-3.3-arm-vexpress-emm-pcie')
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else:
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self.kernel = binary('vmlinux.arm.smp.fb.2.6.38.8')
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if dtb_filename:
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self.dtb_filename = binary(dtb_filename)
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self.machine_type = machine_type
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# Ensure that writes to the UART actually go out early in the boot
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boot_flags = 'earlyprintk=pl011,0x1c090000 console=ttyAMA0 ' + \
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'lpj=19988480 norandmaps rw loglevel=8 ' + \
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'mem=%s root=/dev/sda1' % mdesc.mem()
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self.mem_ranges = []
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size_remain = long(Addr(mdesc.mem()))
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for region in self.realview._mem_regions:
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if size_remain > long(region[1]):
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self.mem_ranges.append(AddrRange(region[0], size=region[1]))
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size_remain = size_remain - long(region[1])
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else:
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self.mem_ranges.append(AddrRange(region[0], size=size_remain))
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size_remain = 0
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break
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warn("Memory size specified spans more than one region. Creating" \
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" another memory controller for that range.")
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if size_remain > 0:
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fatal("The currently selected ARM platforms doesn't support" \
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" the amount of DRAM you've selected. Please try" \
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" another platform")
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self.realview.setupBootLoader(self.membus, self, binary)
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self.gic_cpu_addr = self.realview.gic.cpu_addr
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self.flags_addr = self.realview.realview_io.pio_addr + 0x30
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if mdesc.disk().lower().count('android'):
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boot_flags += " init=/init "
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self.boot_osflags = boot_flags
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self.realview.attachOnChipIO(self.membus, self.bridge)
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self.realview.attachIO(self.iobus)
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self.intrctrl = IntrControl()
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self.terminal = Terminal()
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self.vncserver = VncServer()
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self.system_port = self.membus.slave
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return self
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def makeLinuxMipsSystem(mem_mode, mdesc = None):
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class BaseMalta(Malta):
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ethernet = NSGigE(pci_bus=0, pci_dev=1, pci_func=0)
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ide = IdeController(disks=[Parent.disk0, Parent.disk2],
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pci_func=0, pci_dev=0, pci_bus=0)
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self = LinuxMipsSystem()
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if not mdesc:
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# generic system
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mdesc = SysConfig()
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self.readfile = mdesc.script()
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self.iobus = NoncoherentXBar()
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self.membus = MemBus()
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self.bridge = Bridge(delay='50ns')
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self.mem_ranges = [AddrRange('1GB')]
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self.bridge.master = self.iobus.slave
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self.bridge.slave = self.membus.master
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self.disk0 = CowIdeDisk(driveID='master')
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self.disk2 = CowIdeDisk(driveID='master')
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self.disk0.childImage(mdesc.disk())
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self.disk2.childImage(disk('linux-bigswap2.img'))
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self.malta = BaseMalta()
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self.malta.attachIO(self.iobus)
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self.malta.ide.pio = self.iobus.master
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self.malta.ide.config = self.iobus.master
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self.malta.ide.dma = self.iobus.slave
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self.malta.ethernet.pio = self.iobus.master
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self.malta.ethernet.config = self.iobus.master
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self.malta.ethernet.dma = self.iobus.slave
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self.simple_disk = SimpleDisk(disk=RawDiskImage(image_file = mdesc.disk(),
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read_only = True))
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self.intrctrl = IntrControl()
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self.mem_mode = mem_mode
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self.terminal = Terminal()
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self.kernel = binary('mips/vmlinux')
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self.console = binary('mips/console')
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self.boot_osflags = 'root=/dev/hda1 console=ttyS0'
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self.system_port = self.membus.slave
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return self
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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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def connectX86ClassicSystem(x86_sys, numCPUs):
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# Constants similar to x86_traits.hh
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IO_address_space_base = 0x8000000000000000
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pci_config_address_space_base = 0xc000000000000000
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interrupts_address_space_base = 0xa000000000000000
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APIC_range_size = 1 << 12;
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x86_sys.membus = MemBus()
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# North Bridge
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x86_sys.iobus = NoncoherentXBar()
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x86_sys.bridge = Bridge(delay='50ns')
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x86_sys.bridge.master = x86_sys.iobus.slave
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x86_sys.bridge.slave = x86_sys.membus.master
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# Allow the bridge to pass through:
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# 1) kernel configured PCI device memory map address: address range
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# [0xC0000000, 0xFFFF0000). (The upper 64kB are reserved for m5ops.)
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# 2) the bridge to pass through the IO APIC (two pages, already contained in 1),
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# 3) everything in the IO address range up to the local APIC, and
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# 4) then the entire PCI address space and beyond.
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x86_sys.bridge.ranges = \
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[
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AddrRange(0xC0000000, 0xFFFF0000),
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AddrRange(IO_address_space_base,
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interrupts_address_space_base - 1),
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AddrRange(pci_config_address_space_base,
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Addr.max)
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]
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# Create a bridge from the IO bus to the memory bus to allow access to
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# the local APIC (two pages)
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x86_sys.apicbridge = Bridge(delay='50ns')
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x86_sys.apicbridge.slave = x86_sys.iobus.master
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x86_sys.apicbridge.master = x86_sys.membus.slave
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x86_sys.apicbridge.ranges = [AddrRange(interrupts_address_space_base,
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interrupts_address_space_base +
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numCPUs * APIC_range_size
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- 1)]
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# connect the io bus
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x86_sys.pc.attachIO(x86_sys.iobus)
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x86_sys.system_port = x86_sys.membus.slave
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def connectX86RubySystem(x86_sys):
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# North Bridge
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x86_sys.iobus = NoncoherentXBar()
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# add the ide to the list of dma devices that later need to attach to
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# dma controllers
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x86_sys._dma_ports = [x86_sys.pc.south_bridge.ide.dma]
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x86_sys.pc.attachIO(x86_sys.iobus, x86_sys._dma_ports)
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def makeX86System(mem_mode, numCPUs = 1, mdesc = None, self = None,
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Ruby = False):
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if self == None:
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self = X86System()
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if not mdesc:
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# generic system
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mdesc = SysConfig()
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self.readfile = mdesc.script()
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self.mem_mode = mem_mode
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# Physical memory
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# On the PC platform, the memory region 0xC0000000-0xFFFFFFFF is reserved
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# for various devices. Hence, if the physical memory size is greater than
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# 3GB, we need to split it into two parts.
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excess_mem_size = \
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convert.toMemorySize(mdesc.mem()) - convert.toMemorySize('3GB')
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if excess_mem_size <= 0:
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self.mem_ranges = [AddrRange(mdesc.mem())]
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else:
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warn("Physical memory size specified is %s which is greater than " \
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"3GB. Twice the number of memory controllers would be " \
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"created." % (mdesc.mem()))
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self.mem_ranges = [AddrRange('3GB'),
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AddrRange(Addr('4GB'), size = excess_mem_size)]
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# Platform
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self.pc = Pc()
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# Create and connect the busses required by each memory system
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if Ruby:
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connectX86RubySystem(self)
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else:
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connectX86ClassicSystem(self, numCPUs)
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self.intrctrl = IntrControl()
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# Disks
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disk0 = CowIdeDisk(driveID='master')
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disk2 = CowIdeDisk(driveID='master')
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disk0.childImage(mdesc.disk())
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disk2.childImage(disk('linux-bigswap2.img'))
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self.pc.south_bridge.ide.disks = [disk0, disk2]
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# Add in a Bios information structure.
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structures = [X86SMBiosBiosInformation()]
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self.smbios_table.structures = structures
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# Set up the Intel MP table
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base_entries = []
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ext_entries = []
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for i in xrange(numCPUs):
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bp = X86IntelMPProcessor(
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local_apic_id = i,
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local_apic_version = 0x14,
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enable = True,
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bootstrap = (i == 0))
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base_entries.append(bp)
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io_apic = X86IntelMPIOAPIC(
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id = numCPUs,
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version = 0x11,
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enable = True,
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address = 0xfec00000)
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self.pc.south_bridge.io_apic.apic_id = io_apic.id
|
|
base_entries.append(io_apic)
|
|
# In gem5 Pc::calcPciConfigAddr(), it required "assert(bus==0)",
|
|
# but linux kernel cannot config PCI device if it was not connected to PCI bus,
|
|
# so we fix PCI bus id to 0, and ISA bus id to 1.
|
|
pci_bus = X86IntelMPBus(bus_id = 0, bus_type='PCI')
|
|
base_entries.append(pci_bus)
|
|
isa_bus = X86IntelMPBus(bus_id = 1, bus_type='ISA')
|
|
base_entries.append(isa_bus)
|
|
connect_busses = X86IntelMPBusHierarchy(bus_id=1,
|
|
subtractive_decode=True, parent_bus=0)
|
|
ext_entries.append(connect_busses)
|
|
pci_dev4_inta = X86IntelMPIOIntAssignment(
|
|
interrupt_type = 'INT',
|
|
polarity = 'ConformPolarity',
|
|
trigger = 'ConformTrigger',
|
|
source_bus_id = 0,
|
|
source_bus_irq = 0 + (4 << 2),
|
|
dest_io_apic_id = io_apic.id,
|
|
dest_io_apic_intin = 16)
|
|
base_entries.append(pci_dev4_inta)
|
|
def assignISAInt(irq, apicPin):
|
|
assign_8259_to_apic = X86IntelMPIOIntAssignment(
|
|
interrupt_type = 'ExtInt',
|
|
polarity = 'ConformPolarity',
|
|
trigger = 'ConformTrigger',
|
|
source_bus_id = 1,
|
|
source_bus_irq = irq,
|
|
dest_io_apic_id = io_apic.id,
|
|
dest_io_apic_intin = 0)
|
|
base_entries.append(assign_8259_to_apic)
|
|
assign_to_apic = X86IntelMPIOIntAssignment(
|
|
interrupt_type = 'INT',
|
|
polarity = 'ConformPolarity',
|
|
trigger = 'ConformTrigger',
|
|
source_bus_id = 1,
|
|
source_bus_irq = irq,
|
|
dest_io_apic_id = io_apic.id,
|
|
dest_io_apic_intin = apicPin)
|
|
base_entries.append(assign_to_apic)
|
|
assignISAInt(0, 2)
|
|
assignISAInt(1, 1)
|
|
for i in range(3, 15):
|
|
assignISAInt(i, i)
|
|
self.intel_mp_table.base_entries = base_entries
|
|
self.intel_mp_table.ext_entries = ext_entries
|
|
|
|
def makeLinuxX86System(mem_mode, numCPUs = 1, mdesc = None,
|
|
Ruby = False):
|
|
self = LinuxX86System()
|
|
|
|
# Build up the x86 system and then specialize it for Linux
|
|
makeX86System(mem_mode, numCPUs, mdesc, self, Ruby)
|
|
|
|
# We assume below that there's at least 1MB of memory. We'll require 2
|
|
# just to avoid corner cases.
|
|
phys_mem_size = sum(map(lambda r: r.size(), self.mem_ranges))
|
|
assert(phys_mem_size >= 0x200000)
|
|
assert(len(self.mem_ranges) <= 2)
|
|
|
|
entries = \
|
|
[
|
|
# Mark the first megabyte of memory as reserved
|
|
X86E820Entry(addr = 0, size = '639kB', range_type = 1),
|
|
X86E820Entry(addr = 0x9fc00, size = '385kB', range_type = 2),
|
|
# Mark the rest of physical memory as available
|
|
X86E820Entry(addr = 0x100000,
|
|
size = '%dB' % (self.mem_ranges[0].size() - 0x100000),
|
|
range_type = 1),
|
|
]
|
|
|
|
# Mark [mem_size, 3GB) as reserved if memory less than 3GB, which force
|
|
# IO devices to be mapped to [0xC0000000, 0xFFFF0000). Requests to this
|
|
# specific range can pass though bridge to iobus.
|
|
if len(self.mem_ranges) == 1:
|
|
entries.append(X86E820Entry(addr = self.mem_ranges[0].size(),
|
|
size='%dB' % (0xC0000000 - self.mem_ranges[0].size()),
|
|
range_type=2))
|
|
|
|
# Reserve the last 16kB of the 32-bit address space for the m5op interface
|
|
entries.append(X86E820Entry(addr=0xFFFF0000, size='64kB', range_type=2))
|
|
|
|
# In case the physical memory is greater than 3GB, we split it into two
|
|
# parts and add a separate e820 entry for the second part. This entry
|
|
# starts at 0x100000000, which is the first address after the space
|
|
# reserved for devices.
|
|
if len(self.mem_ranges) == 2:
|
|
entries.append(X86E820Entry(addr = 0x100000000,
|
|
size = '%dB' % (self.mem_ranges[1].size()), range_type = 1))
|
|
|
|
self.e820_table.entries = entries
|
|
|
|
# Command line
|
|
self.boot_osflags = 'earlyprintk=ttyS0 console=ttyS0 lpj=7999923 ' + \
|
|
'root=/dev/hda1'
|
|
self.kernel = binary('x86_64-vmlinux-2.6.22.9')
|
|
return self
|
|
|
|
|
|
def makeDualRoot(full_system, testSystem, driveSystem, dumpfile):
|
|
self = Root(full_system = full_system)
|
|
self.testsys = testSystem
|
|
self.drivesys = driveSystem
|
|
self.etherlink = EtherLink()
|
|
|
|
if hasattr(testSystem, 'realview'):
|
|
self.etherlink.int0 = Parent.testsys.realview.ethernet.interface
|
|
self.etherlink.int1 = Parent.drivesys.realview.ethernet.interface
|
|
elif hasattr(testSystem, 'tsunami'):
|
|
self.etherlink.int0 = Parent.testsys.tsunami.ethernet.interface
|
|
self.etherlink.int1 = Parent.drivesys.tsunami.ethernet.interface
|
|
else:
|
|
fatal("Don't know how to connect these system together")
|
|
|
|
if dumpfile:
|
|
self.etherdump = EtherDump(file=dumpfile)
|
|
self.etherlink.dump = Parent.etherdump
|
|
|
|
return self
|