ArmSystem.py revision 10846:751aa8add0bc
1# Copyright (c) 2009, 2012-2013 ARM Limited 2# All rights reserved. 3# 4# The license below extends only to copyright in the software and shall 5# not be construed as granting a license to any other intellectual 6# property including but not limited to intellectual property relating 7# to a hardware implementation of the functionality of the software 8# licensed hereunder. You may use the software subject to the license 9# terms below provided that you ensure that this notice is replicated 10# unmodified and in its entirety in all distributions of the software, 11# modified or unmodified, in source code or in binary form. 12# 13# Redistribution and use in source and binary forms, with or without 14# modification, are permitted provided that the following conditions are 15# met: redistributions of source code must retain the above copyright 16# notice, this list of conditions and the following disclaimer; 17# redistributions in binary form must reproduce the above copyright 18# notice, this list of conditions and the following disclaimer in the 19# documentation and/or other materials provided with the distribution; 20# neither the name of the copyright holders nor the names of its 21# contributors may be used to endorse or promote products derived from 22# this software without specific prior written permission. 23# 24# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 25# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 26# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 27# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 28# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 29# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 30# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 31# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 32# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 33# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 34# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 35# 36# Authors: Ali Saidi 37 38from m5.params import * 39 40from System import System 41 42class ArmMachineType(Enum): 43 map = {'RealView_EB' : 827, 44 'RealView_PBX' : 1901, 45 'VExpress_EMM' : 2272, 46 'VExpress_EMM64' : 2272} 47 48class ArmSystem(System): 49 type = 'ArmSystem' 50 cxx_header = "arch/arm/system.hh" 51 load_addr_mask = 0xffffffff 52 multi_proc = Param.Bool(True, "Multiprocessor system?") 53 boot_loader = Param.String("", "File that contains the boot loader code if any") 54 gic_cpu_addr = Param.Addr(0, "Addres of the GIC CPU interface") 55 flags_addr = Param.Addr(0, "Address of the flags register for MP booting") 56 have_security = Param.Bool(False, 57 "True if Security Extensions are implemented") 58 have_virtualization = Param.Bool(False, 59 "True if Virtualization Extensions are implemented") 60 have_lpae = Param.Bool(False, "True if LPAE is implemented") 61 highest_el_is_64 = Param.Bool(False, 62 "True if the register width of the highest implemented exception level " 63 "is 64 bits (ARMv8)") 64 reset_addr_64 = Param.Addr(0x0, 65 "Reset address if the highest implemented exception level is 64 bits " 66 "(ARMv8)") 67 phys_addr_range_64 = Param.UInt8(40, 68 "Supported physical address range in bits when using AArch64 (ARMv8)") 69 have_large_asid_64 = Param.Bool(False, 70 "True if ASID is 16 bits in AArch64 (ARMv8)") 71 72class GenericArmSystem(ArmSystem): 73 type = 'GenericArmSystem' 74 cxx_header = "arch/arm/system.hh" 75 load_addr_mask = 0x0fffffff 76 machine_type = Param.ArmMachineType('VExpress_EMM', 77 "Machine id from http://www.arm.linux.org.uk/developer/machines/") 78 atags_addr = Param.Addr("Address where default atags structure should " \ 79 "be written") 80 dtb_filename = Param.String("", 81 "File that contains the Device Tree Blob. Don't use DTB if empty.") 82 early_kernel_symbols = Param.Bool(False, 83 "enable early kernel symbol tables before MMU") 84 enable_context_switch_stats_dump = Param.Bool(False, "enable stats/task info dumping at context switch boundaries") 85 86 panic_on_panic = Param.Bool(False, "Trigger a gem5 panic if the " \ 87 "guest kernel panics") 88 panic_on_oops = Param.Bool(False, "Trigger a gem5 panic if the " \ 89 "guest kernel oopses") 90 91class LinuxArmSystem(GenericArmSystem): 92 type = 'LinuxArmSystem' 93 cxx_header = "arch/arm/linux/system.hh" 94 95class FreebsdArmSystem(GenericArmSystem): 96 type = 'FreebsdArmSystem' 97 cxx_header = "arch/arm/freebsd/system.hh" 98