| # Copyright (c) 2010-2012, 2015-2019 ARM Limited |
| # Copyright (c) 2020 Barkhausen Institut |
| # 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. |
| # |
| # Copyright (c) 2010-2011 Advanced Micro Devices, Inc. |
| # Copyright (c) 2006-2008 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. |
| |
| import m5 |
| from m5.objects import * |
| from m5.util import * |
| from common.Benchmarks import * |
| from common import ObjectList |
| |
| # Populate to reflect supported os types per target ISA |
| os_types = { 'mips' : [ 'linux' ], |
| 'riscv' : [ 'linux' ], # TODO that's a lie |
| 'sparc' : [ 'linux' ], |
| 'x86' : [ 'linux' ], |
| 'arm' : [ 'linux', |
| 'android-gingerbread', |
| 'android-ics', |
| 'android-jellybean', |
| 'android-kitkat', |
| 'android-nougat', ], |
| } |
| |
| class CowIdeDisk(IdeDisk): |
| image = CowDiskImage(child=RawDiskImage(read_only=True), |
| read_only=False) |
| |
| def childImage(self, ci): |
| self.image.child.image_file = ci |
| |
| class MemBus(SystemXBar): |
| badaddr_responder = BadAddr() |
| default = Self.badaddr_responder.pio |
| |
| def attach_9p(parent, bus): |
| viopci = PciVirtIO() |
| viopci.vio = VirtIO9PDiod() |
| viodir = os.path.realpath(os.path.join(m5.options.outdir, '9p')) |
| viopci.vio.root = os.path.join(viodir, 'share') |
| viopci.vio.socketPath = os.path.join(viodir, 'socket') |
| if not os.path.exists(viopci.vio.root): |
| os.makedirs(viopci.vio.root) |
| if os.path.exists(viopci.vio.socketPath): |
| os.remove(viopci.vio.socketPath) |
| parent.viopci = viopci |
| parent.attachPciDevice(viopci, bus) |
| |
| def fillInCmdline(mdesc, template, **kwargs): |
| kwargs.setdefault('rootdev', mdesc.rootdev()) |
| kwargs.setdefault('mem', mdesc.mem()) |
| kwargs.setdefault('script', mdesc.script()) |
| return template % kwargs |
| |
| def makeCowDisks(disk_paths): |
| disks = [] |
| for disk_path in disk_paths: |
| disk = CowIdeDisk(driveID='device0') |
| disk.childImage(disk_path); |
| disks.append(disk) |
| return disks |
| |
| def makeSparcSystem(mem_mode, mdesc=None, cmdline=None): |
| # Constants from iob.cc and uart8250.cc |
| iob_man_addr = 0x9800000000 |
| uart_pio_size = 8 |
| |
| class CowMmDisk(MmDisk): |
| image = CowDiskImage(child=RawDiskImage(read_only=True), |
| read_only=False) |
| |
| def childImage(self, ci): |
| self.image.child.image_file = ci |
| |
| self = System() |
| if not mdesc: |
| # generic system |
| mdesc = SysConfig() |
| self.readfile = mdesc.script() |
| self.iobus = IOXBar() |
| self.membus = MemBus() |
| self.bridge = Bridge(delay='50ns') |
| self.t1000 = T1000() |
| self.t1000.attachOnChipIO(self.membus) |
| self.t1000.attachIO(self.iobus) |
| self.mem_ranges = [AddrRange(Addr('1MB'), size = '64MB'), |
| AddrRange(Addr('2GB'), size ='256MB')] |
| self.bridge.master = self.iobus.slave |
| self.bridge.slave = self.membus.master |
| self.disk0 = CowMmDisk() |
| self.disk0.childImage(mdesc.disks()[0]) |
| self.disk0.pio = self.iobus.master |
| |
| # The puart0 and hvuart are placed on the IO bus, so create ranges |
| # for them. The remaining IO range is rather fragmented, so poke |
| # holes for the iob and partition descriptors etc. |
| self.bridge.ranges = \ |
| [ |
| AddrRange(self.t1000.puart0.pio_addr, |
| self.t1000.puart0.pio_addr + uart_pio_size - 1), |
| AddrRange(self.disk0.pio_addr, |
| self.t1000.fake_jbi.pio_addr + |
| self.t1000.fake_jbi.pio_size - 1), |
| AddrRange(self.t1000.fake_clk.pio_addr, |
| iob_man_addr - 1), |
| AddrRange(self.t1000.fake_l2_1.pio_addr, |
| self.t1000.fake_ssi.pio_addr + |
| self.t1000.fake_ssi.pio_size - 1), |
| AddrRange(self.t1000.hvuart.pio_addr, |
| self.t1000.hvuart.pio_addr + uart_pio_size - 1) |
| ] |
| |
| workload = SparcFsWorkload() |
| |
| # ROM for OBP/Reset/Hypervisor |
| self.rom = SimpleMemory(image_file=binary('t1000_rom.bin'), |
| range=AddrRange(0xfff0000000, size='8MB')) |
| # nvram |
| self.nvram = SimpleMemory(image_file=binary('nvram1'), |
| range=AddrRange(0x1f11000000, size='8kB')) |
| # hypervisor description |
| self.hypervisor_desc = SimpleMemory(image_file=binary('1up-hv.bin'), |
| range=AddrRange(0x1f12080000, size='8kB')) |
| # partition description |
| self.partition_desc = SimpleMemory(image_file=binary('1up-md.bin'), |
| range=AddrRange(0x1f12000000, size='8kB')) |
| |
| self.rom.port = self.membus.master |
| self.nvram.port = self.membus.master |
| self.hypervisor_desc.port = self.membus.master |
| self.partition_desc.port = self.membus.master |
| |
| self.system_port = self.membus.slave |
| |
| self.workload = workload |
| |
| return self |
| |
| def makeArmSystem(mem_mode, machine_type, num_cpus=1, mdesc=None, |
| dtb_filename=None, bare_metal=False, cmdline=None, |
| external_memory="", ruby=False, security=False, |
| vio_9p=None, bootloader=None): |
| assert machine_type |
| |
| pci_devices = [] |
| |
| self = ArmSystem() |
| |
| if not mdesc: |
| # generic system |
| mdesc = SysConfig() |
| |
| self.readfile = mdesc.script() |
| self.iobus = IOXBar() |
| if not ruby: |
| self.bridge = Bridge(delay='50ns') |
| self.bridge.master = self.iobus.slave |
| self.membus = MemBus() |
| self.membus.badaddr_responder.warn_access = "warn" |
| self.bridge.slave = self.membus.master |
| |
| self.mem_mode = mem_mode |
| |
| platform_class = ObjectList.platform_list.get(machine_type) |
| # Resolve the real platform name, the original machine_type |
| # variable might have been an alias. |
| machine_type = platform_class.__name__ |
| self.realview = platform_class() |
| self._bootmem = self.realview.bootmem |
| |
| # Attach any PCI devices this platform supports |
| self.realview.attachPciDevices() |
| |
| disks = makeCowDisks(mdesc.disks()) |
| # Old platforms have a built-in IDE or CF controller. Default to |
| # the IDE controller if both exist. New platforms expect the |
| # storage controller to be added from the config script. |
| if hasattr(self.realview, "ide"): |
| self.realview.ide.disks = disks |
| elif hasattr(self.realview, "cf_ctrl"): |
| self.realview.cf_ctrl.disks = disks |
| else: |
| self.pci_ide = IdeController(disks=disks) |
| pci_devices.append(self.pci_ide) |
| |
| self.mem_ranges = [] |
| size_remain = int(Addr(mdesc.mem())) |
| for region in self.realview._mem_regions: |
| if size_remain > int(region.size()): |
| self.mem_ranges.append(region) |
| size_remain = size_remain - int(region.size()) |
| else: |
| self.mem_ranges.append(AddrRange(region.start, size=size_remain)) |
| size_remain = 0 |
| break |
| warn("Memory size specified spans more than one region. Creating" \ |
| " another memory controller for that range.") |
| |
| if size_remain > 0: |
| fatal("The currently selected ARM platforms doesn't support" \ |
| " the amount of DRAM you've selected. Please try" \ |
| " another platform") |
| |
| self.have_security = security |
| |
| if bare_metal: |
| # EOT character on UART will end the simulation |
| self.realview.uart[0].end_on_eot = True |
| self.workload = ArmFsWorkload(dtb_addr=0) |
| else: |
| workload = ArmFsLinux() |
| |
| if dtb_filename: |
| workload.dtb_filename = binary(dtb_filename) |
| |
| workload.machine_type = \ |
| machine_type if machine_type in ArmMachineType.map else "DTOnly" |
| |
| # Ensure that writes to the UART actually go out early in the boot |
| if not cmdline: |
| cmdline = 'earlyprintk=pl011,0x1c090000 console=ttyAMA0 ' + \ |
| 'lpj=19988480 norandmaps rw loglevel=8 ' + \ |
| 'mem=%(mem)s root=%(rootdev)s' |
| |
| if hasattr(self.realview.gic, 'cpu_addr'): |
| self.gic_cpu_addr = self.realview.gic.cpu_addr |
| |
| # This check is for users who have previously put 'android' in |
| # the disk image filename to tell the config scripts to |
| # prepare the kernel with android-specific boot options. That |
| # behavior has been replaced with a more explicit option per |
| # the error message below. The disk can have any name now and |
| # doesn't need to include 'android' substring. |
| if (mdesc.disks() and |
| os.path.split(mdesc.disks()[0])[-1].lower().count('android')): |
| if 'android' not in mdesc.os_type(): |
| fatal("It looks like you are trying to boot an Android " \ |
| "platform. To boot Android, you must specify " \ |
| "--os-type with an appropriate Android release on " \ |
| "the command line.") |
| |
| # android-specific tweaks |
| if 'android' in mdesc.os_type(): |
| # generic tweaks |
| cmdline += " init=/init" |
| |
| # release-specific tweaks |
| if 'kitkat' in mdesc.os_type(): |
| cmdline += " androidboot.hardware=gem5 qemu=1 qemu.gles=0 " + \ |
| "android.bootanim=0 " |
| elif 'nougat' in mdesc.os_type(): |
| cmdline += " androidboot.hardware=gem5 qemu=1 qemu.gles=0 " + \ |
| "android.bootanim=0 " + \ |
| "vmalloc=640MB " + \ |
| "android.early.fstab=/fstab.gem5 " + \ |
| "androidboot.selinux=permissive " + \ |
| "video=Virtual-1:1920x1080-16" |
| |
| workload.command_line = fillInCmdline(mdesc, cmdline) |
| |
| self.workload = workload |
| |
| self.realview.setupBootLoader(self, binary, bootloader) |
| |
| if external_memory: |
| # I/O traffic enters iobus |
| self.external_io = ExternalMaster(port_data="external_io", |
| port_type=external_memory) |
| self.external_io.port = self.iobus.slave |
| |
| # Ensure iocache only receives traffic destined for (actual) memory. |
| self.iocache = ExternalSlave(port_data="iocache", |
| port_type=external_memory, |
| addr_ranges=self.mem_ranges) |
| self.iocache.port = self.iobus.master |
| |
| # Let system_port get to nvmem and nothing else. |
| self.bridge.ranges = [self.realview.nvmem.range] |
| |
| self.realview.attachOnChipIO(self.iobus) |
| # Attach off-chip devices |
| self.realview.attachIO(self.iobus) |
| elif ruby: |
| self._dma_ports = [ ] |
| self._mem_ports = [ ] |
| self.realview.attachOnChipIO(self.iobus, |
| dma_ports=self._dma_ports, mem_ports=self._mem_ports) |
| self.realview.attachIO(self.iobus, dma_ports=self._dma_ports) |
| else: |
| self.realview.attachOnChipIO(self.membus, self.bridge) |
| # Attach off-chip devices |
| self.realview.attachIO(self.iobus) |
| |
| for dev in pci_devices: |
| self.realview.attachPciDevice( |
| dev, self.iobus, |
| dma_ports=self._dma_ports if ruby else None) |
| |
| self.terminal = Terminal() |
| self.vncserver = VncServer() |
| |
| if vio_9p: |
| attach_9p(self.realview, self.iobus) |
| |
| if not ruby: |
| self.system_port = self.membus.slave |
| |
| if ruby: |
| if buildEnv['PROTOCOL'] == 'MI_example' and num_cpus > 1: |
| fatal("The MI_example protocol cannot implement Load/Store " |
| "Exclusive operations. Multicore ARM systems configured " |
| "with the MI_example protocol will not work properly.") |
| |
| return self |
| |
| |
| def makeLinuxMipsSystem(mem_mode, mdesc=None, cmdline=None): |
| class BaseMalta(Malta): |
| ethernet = NSGigE(pci_bus=0, pci_dev=1, pci_func=0) |
| ide = IdeController(disks=Parent.disks, |
| pci_func=0, pci_dev=0, pci_bus=0) |
| |
| self = System() |
| if not mdesc: |
| # generic system |
| mdesc = SysConfig() |
| self.readfile = mdesc.script() |
| self.iobus = IOXBar() |
| self.membus = MemBus() |
| self.bridge = Bridge(delay='50ns') |
| self.mem_ranges = [AddrRange('1GB')] |
| self.bridge.master = self.iobus.slave |
| self.bridge.slave = self.membus.master |
| self.disks = makeCowDisks(mdesc.disks()) |
| self.malta = BaseMalta() |
| self.malta.attachIO(self.iobus) |
| self.malta.ide.pio = self.iobus.master |
| self.malta.ide.dma = self.iobus.slave |
| self.malta.ethernet.pio = self.iobus.master |
| self.malta.ethernet.dma = self.iobus.slave |
| self.simple_disk = SimpleDisk(disk=RawDiskImage( |
| image_file = mdesc.disks()[0], read_only = True)) |
| self.mem_mode = mem_mode |
| self.terminal = Terminal() |
| self.console = binary('mips/console') |
| if not cmdline: |
| cmdline = 'root=/dev/hda1 console=ttyS0' |
| self.workload = KernelWorkload(command_line=fillInCmdline(mdesc, cmdline)) |
| |
| self.system_port = self.membus.slave |
| |
| return self |
| |
| def x86IOAddress(port): |
| IO_address_space_base = 0x8000000000000000 |
| return IO_address_space_base + port |
| |
| def connectX86ClassicSystem(x86_sys, numCPUs): |
| # Constants similar to x86_traits.hh |
| IO_address_space_base = 0x8000000000000000 |
| pci_config_address_space_base = 0xc000000000000000 |
| interrupts_address_space_base = 0xa000000000000000 |
| APIC_range_size = 1 << 12; |
| |
| x86_sys.membus = MemBus() |
| |
| # North Bridge |
| x86_sys.iobus = IOXBar() |
| x86_sys.bridge = Bridge(delay='50ns') |
| x86_sys.bridge.master = x86_sys.iobus.slave |
| x86_sys.bridge.slave = x86_sys.membus.master |
| # Allow the bridge to pass through: |
| # 1) kernel configured PCI device memory map address: address range |
| # [0xC0000000, 0xFFFF0000). (The upper 64kB are reserved for m5ops.) |
| # 2) the bridge to pass through the IO APIC (two pages, already contained in 1), |
| # 3) everything in the IO address range up to the local APIC, and |
| # 4) then the entire PCI address space and beyond. |
| x86_sys.bridge.ranges = \ |
| [ |
| AddrRange(0xC0000000, 0xFFFF0000), |
| AddrRange(IO_address_space_base, |
| interrupts_address_space_base - 1), |
| AddrRange(pci_config_address_space_base, |
| Addr.max) |
| ] |
| |
| # Create a bridge from the IO bus to the memory bus to allow access to |
| # the local APIC (two pages) |
| x86_sys.apicbridge = Bridge(delay='50ns') |
| x86_sys.apicbridge.slave = x86_sys.iobus.master |
| x86_sys.apicbridge.master = x86_sys.membus.slave |
| x86_sys.apicbridge.ranges = [AddrRange(interrupts_address_space_base, |
| interrupts_address_space_base + |
| numCPUs * APIC_range_size |
| - 1)] |
| |
| # connect the io bus |
| x86_sys.pc.attachIO(x86_sys.iobus) |
| |
| x86_sys.system_port = x86_sys.membus.slave |
| |
| def connectX86RubySystem(x86_sys): |
| # North Bridge |
| x86_sys.iobus = IOXBar() |
| |
| # add the ide to the list of dma devices that later need to attach to |
| # dma controllers |
| x86_sys._dma_ports = [x86_sys.pc.south_bridge.ide.dma] |
| x86_sys.pc.attachIO(x86_sys.iobus, x86_sys._dma_ports) |
| |
| |
| def makeX86System(mem_mode, numCPUs=1, mdesc=None, workload=None, Ruby=False): |
| self = System() |
| |
| if workload is None: |
| workload = X86FsWorkload() |
| self.workload = workload |
| |
| if not mdesc: |
| # generic system |
| mdesc = SysConfig() |
| self.readfile = mdesc.script() |
| |
| self.mem_mode = mem_mode |
| |
| # Physical memory |
| # On the PC platform, the memory region 0xC0000000-0xFFFFFFFF is reserved |
| # for various devices. Hence, if the physical memory size is greater than |
| # 3GB, we need to split it into two parts. |
| excess_mem_size = \ |
| convert.toMemorySize(mdesc.mem()) - convert.toMemorySize('3GB') |
| if excess_mem_size <= 0: |
| self.mem_ranges = [AddrRange(mdesc.mem())] |
| else: |
| warn("Physical memory size specified is %s which is greater than " \ |
| "3GB. Twice the number of memory controllers would be " \ |
| "created." % (mdesc.mem())) |
| |
| self.mem_ranges = [AddrRange('3GB'), |
| AddrRange(Addr('4GB'), size = excess_mem_size)] |
| |
| # Platform |
| self.pc = Pc() |
| |
| # Create and connect the busses required by each memory system |
| if Ruby: |
| connectX86RubySystem(self) |
| else: |
| connectX86ClassicSystem(self, numCPUs) |
| |
| # Disks |
| disks = makeCowDisks(mdesc.disks()) |
| self.pc.south_bridge.ide.disks = disks |
| |
| # Add in a Bios information structure. |
| structures = [X86SMBiosBiosInformation()] |
| workload.smbios_table.structures = structures |
| |
| # Set up the Intel MP table |
| base_entries = [] |
| ext_entries = [] |
| madt_records = [] |
| for i in range(numCPUs): |
| bp = X86IntelMPProcessor( |
| local_apic_id = i, |
| local_apic_version = 0x14, |
| enable = True, |
| bootstrap = (i == 0)) |
| base_entries.append(bp) |
| lapic = X86ACPIMadtLAPIC( |
| acpi_processor_id=i, |
| apic_id=i, |
| flags=1) |
| madt_records.append(lapic) |
| io_apic = X86IntelMPIOAPIC( |
| id = numCPUs, |
| version = 0x11, |
| enable = True, |
| address = 0xfec00000) |
| self.pc.south_bridge.io_apic.apic_id = io_apic.id |
| base_entries.append(io_apic) |
| madt_records.append(X86ACPIMadtIOAPIC(id=io_apic.id, |
| address=io_apic.address, int_base=0)) |
| # 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) |
| pci_dev4_inta_madt = X86ACPIMadtIntSourceOverride( |
| bus_source = pci_dev4_inta.source_bus_id, |
| irq_source = pci_dev4_inta.source_bus_irq, |
| sys_int = pci_dev4_inta.dest_io_apic_intin, |
| flags = 0 |
| ) |
| madt_records.append(pci_dev4_inta_madt) |
| 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) |
| # acpi |
| assign_to_apic_acpi = X86ACPIMadtIntSourceOverride( |
| bus_source = 1, |
| irq_source = irq, |
| sys_int = apicPin, |
| flags = 0 |
| ) |
| madt_records.append(assign_to_apic_acpi) |
| assignISAInt(0, 2) |
| assignISAInt(1, 1) |
| for i in range(3, 15): |
| assignISAInt(i, i) |
| workload.intel_mp_table.base_entries = base_entries |
| workload.intel_mp_table.ext_entries = ext_entries |
| |
| madt = X86ACPIMadt(local_apic_address=0, |
| records=madt_records, oem_id='madt') |
| workload.acpi_description_table_pointer.rsdt.entries.append(madt) |
| workload.acpi_description_table_pointer.xsdt.entries.append(madt) |
| workload.acpi_description_table_pointer.oem_id = 'gem5' |
| workload.acpi_description_table_pointer.rsdt.oem_id='gem5' |
| workload.acpi_description_table_pointer.xsdt.oem_id='gem5' |
| return self |
| |
| def makeLinuxX86System(mem_mode, numCPUs=1, mdesc=None, Ruby=False, |
| cmdline=None): |
| # Build up the x86 system and then specialize it for Linux |
| self = makeX86System(mem_mode, numCPUs, mdesc, X86FsLinux(), 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([r.size() for r in 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.workload.e820_table.entries = entries |
| |
| # Command line |
| if not cmdline: |
| cmdline = 'earlyprintk=ttyS0 console=ttyS0 lpj=7999923 root=/dev/hda1' |
| self.workload.command_line = fillInCmdline(mdesc, cmdline) |
| return self |
| |
| def makeBareMetalRiscvSystem(mem_mode, mdesc=None, cmdline=None): |
| self = System() |
| if not mdesc: |
| # generic system |
| mdesc = SysConfig() |
| self.mem_mode = mem_mode |
| self.mem_ranges = [AddrRange(mdesc.mem())] |
| |
| self.workload = RiscvBareMetal() |
| |
| self.iobus = IOXBar() |
| self.membus = MemBus() |
| |
| self.bridge = Bridge(delay='50ns') |
| self.bridge.master = self.iobus.slave |
| self.bridge.slave = self.membus.master |
| # Sv39 has 56 bit physical addresses; use the upper 8 bit for the IO space |
| IO_address_space_base = 0x00FF000000000000 |
| self.bridge.ranges = [AddrRange(IO_address_space_base, Addr.max)] |
| |
| self.system_port = self.membus.slave |
| 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 |
| |
| |
| def makeDistRoot(testSystem, |
| rank, |
| size, |
| server_name, |
| server_port, |
| sync_repeat, |
| sync_start, |
| linkspeed, |
| linkdelay, |
| dumpfile): |
| self = Root(full_system = True) |
| self.testsys = testSystem |
| |
| self.etherlink = DistEtherLink(speed = linkspeed, |
| delay = linkdelay, |
| dist_rank = rank, |
| dist_size = size, |
| server_name = server_name, |
| server_port = server_port, |
| sync_start = sync_start, |
| sync_repeat = sync_repeat) |
| |
| if hasattr(testSystem, 'realview'): |
| self.etherlink.int0 = Parent.testsys.realview.ethernet.interface |
| elif hasattr(testSystem, 'tsunami'): |
| self.etherlink.int0 = Parent.testsys.tsunami.ethernet.interface |
| else: |
| fatal("Don't know how to connect DistEtherLink to this system") |
| |
| if dumpfile: |
| self.etherdump = EtherDump(file=dumpfile) |
| self.etherlink.dump = Parent.etherdump |
| |
| return self |
