ArmSystem.py revision 11234:c273990ed9bf 
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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 = VectorParam.String([],
54        "File that contains the boot loader code. Zero or more files may be "
55        "specified. The first boot loader that matches the kernel's "
56        "architecture will be used.")
57    gic_cpu_addr = Param.Addr(0, "Addres of the GIC CPU interface")
58    flags_addr = Param.Addr(0, "Address of the flags register for MP booting")
59    have_security = Param.Bool(False,
60        "True if Security Extensions are implemented")
61    have_virtualization = Param.Bool(False,
62        "True if Virtualization Extensions are implemented")
63    have_lpae = Param.Bool(False, "True if LPAE is implemented")
64    highest_el_is_64 = Param.Bool(False,
65        "True if the register width of the highest implemented exception level "
66        "is 64 bits (ARMv8)")
67    reset_addr_64 = Param.Addr(0x0,
68        "Reset address if the highest implemented exception level is 64 bits "
69        "(ARMv8)")
70    phys_addr_range_64 = Param.UInt8(40,
71        "Supported physical address range in bits when using AArch64 (ARMv8)")
72    have_large_asid_64 = Param.Bool(False,
73        "True if ASID is 16 bits in AArch64 (ARMv8)")
74
75class GenericArmSystem(ArmSystem):
76    type = 'GenericArmSystem'
77    cxx_header = "arch/arm/system.hh"
78    load_addr_mask = 0x0fffffff
79    machine_type = Param.ArmMachineType('VExpress_EMM',
80        "Machine id from http://www.arm.linux.org.uk/developer/machines/")
81    atags_addr = Param.Addr("Address where default atags structure should " \
82                                "be written")
83    dtb_filename = Param.String("",
84        "File that contains the Device Tree Blob. Don't use DTB if empty.")
85    early_kernel_symbols = Param.Bool(False,
86        "enable early kernel symbol tables before MMU")
87    enable_context_switch_stats_dump = Param.Bool(False, "enable stats/task info dumping at context switch boundaries")
88
89    panic_on_panic = Param.Bool(False, "Trigger a gem5 panic if the " \
90                                    "guest kernel panics")
91    panic_on_oops = Param.Bool(False, "Trigger a gem5 panic if the " \
92                                   "guest kernel oopses")
93
94class LinuxArmSystem(GenericArmSystem):
95    type = 'LinuxArmSystem'
96    cxx_header = "arch/arm/linux/system.hh"
97
98class FreebsdArmSystem(GenericArmSystem):
99    type = 'FreebsdArmSystem'
100    cxx_header = "arch/arm/freebsd/system.hh"
101