1 # Copyright (c) 2009, 2012-2013 ARM Limited
4 # The license below extends only to copyright in the software and shall
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38 from m5
.params
import *
40 from System
import System
42 class ArmMachineType(Enum
):
43 map = {'RealView_EB' : 827,
44 'RealView_PBX' : 1901,
45 'VExpress_ELT' : 2272,
46 'VExpress_CA9' : 2272,
47 'VExpress_EMM' : 2272,
48 'VExpress_EMM64' : 2272}
50 class ArmSystem(System
):
52 cxx_header
= "arch/arm/system.hh"
53 load_addr_mask
= 0xffffffff
54 multi_proc
= Param
.Bool(True, "Multiprocessor system?")
55 boot_loader
= Param
.String("", "File that contains the boot loader code if any")
56 gic_cpu_addr
= Param
.Addr(0, "Addres of the GIC CPU interface")
57 flags_addr
= Param
.Addr(0, "Address of the flags register for MP booting")
58 have_security
= Param
.Bool(False,
59 "True if Security Extensions are implemented")
60 have_virtualization
= Param
.Bool(False,
61 "True if Virtualization Extensions are implemented")
62 have_lpae
= Param
.Bool(False, "True if LPAE is implemented")
63 have_generic_timer
= Param
.Bool(False,
64 "True if the Generic Timer extension is implemented")
65 highest_el_is_64
= Param
.Bool(False,
66 "True if the register width of the highest implemented exception level "
68 reset_addr_64
= Param
.UInt64(0x0,
69 "Reset address if the highest implemented exception level is 64 bits "
71 phys_addr_range_64
= Param
.UInt8(40,
72 "Supported physical address range in bits when using AArch64 (ARMv8)")
73 have_large_asid_64
= Param
.Bool(False,
74 "True if ASID is 16 bits in AArch64 (ARMv8)")
76 class LinuxArmSystem(ArmSystem
):
77 type = 'LinuxArmSystem'
78 cxx_header
= "arch/arm/linux/system.hh"
79 load_addr_mask
= 0x0fffffff
80 machine_type
= Param
.ArmMachineType('RealView_PBX',
81 "Machine id from http://www.arm.linux.org.uk/developer/machines/")
82 atags_addr
= Param
.Addr("Address where default atags structure should " \
84 boot_release_addr
= Param
.Addr(0xfff8, "Address where secondary CPUs " \
85 "spin waiting boot in the loader")
86 dtb_filename
= Param
.String("",
87 "File that contains the Device Tree Blob. Don't use DTB if empty.")
88 early_kernel_symbols
= Param
.Bool(False,
89 "enable early kernel symbol tables before MMU")
90 enable_context_switch_stats_dump
= Param
.Bool(False, "enable stats/task info dumping at context switch boundaries")
92 panic_on_panic
= Param
.Bool(False, "Trigger a gem5 panic if the " \
93 "guest kernel panics")
94 panic_on_oops
= Param
.Bool(False, "Trigger a gem5 panic if the " \
95 "guest kernel oopses")