#!/usr/bin/env python
-# Copyright (c) 2012 ARM Limited
+# Copyright (c) 2012-2013 ARM Limited
# All rights reserved
#
# The license below extends only to copyright in the software and shall
import sys, os
import os.path as osp
-def from_0(cpt):
- pass
-
# An example of a translator
-def from_1(cpt):
+def from_0(cpt):
if cpt.get('root','isa') == 'arm':
for sec in cpt.sections():
import re
#mr.insert(26,0)
cpt.set(sec, 'miscRegs', ' '.join(str(x) for x in mr))
+# The backing store supporting the memories in the system has changed
+# in that it is now stored globally per address range. As a result the
+# actual storage is separate from the memory controllers themselves.
+def from_1(cpt):
+ for sec in cpt.sections():
+ import re
+ # Search for a physical memory
+ if re.search('.*sys.*\.physmem$', sec):
+ # Add the number of stores attribute to the global physmem
+ cpt.set(sec, 'nbr_of_stores', '1')
+
+ # Get the filename and size as this is moving to the
+ # specific backing store
+ mem_filename = cpt.get(sec, 'filename')
+ mem_size = cpt.get(sec, '_size')
+ cpt.remove_option(sec, 'filename')
+ cpt.remove_option(sec, '_size')
+
+ # Get the name so that we can create the new section
+ system_name = str(sec).split('.')[0]
+ section_name = system_name + '.physmem.store0'
+ cpt.add_section(section_name)
+ cpt.set(section_name, 'store_id', '0')
+ cpt.set(section_name, 'range_size', mem_size)
+ cpt.set(section_name, 'filename', mem_filename)
+ elif re.search('.*sys.*\.\w*mem$', sec):
+ # Due to the lack of information about a start address,
+ # this migration only works if there is a single memory in
+ # the system, thus starting at 0
+ raise ValueError("more than one memory detected (" + sec + ")")
+
+def from_2(cpt):
+ for sec in cpt.sections():
+ import re
+ # Search for a CPUs
+ if re.search('.*sys.*cpu', sec):
+ try:
+ junk = cpt.get(sec, 'instCnt')
+ cpt.set(sec, '_pid', '0')
+ except ConfigParser.NoOptionError:
+ pass
+
+# The ISA is now a separate SimObject, which means that we serialize
+# it in a separate section instead of as a part of the ThreadContext.
+def from_3(cpt):
+ isa = cpt.get('root','isa')
+ isa_fields = {
+ "alpha" : ( "fpcr", "uniq", "lock_flag", "lock_addr", "ipr" ),
+ "arm" : ( "miscRegs" ),
+ "sparc" : ( "asi", "tick", "fprs", "gsr", "softint", "tick_cmpr",
+ "stick", "stick_cmpr", "tpc", "tnpc", "tstate", "tt",
+ "tba", "pstate", "tl", "pil", "cwp", "gl", "hpstate",
+ "htstate", "hintp", "htba", "hstick_cmpr",
+ "strandStatusReg", "fsr", "priContext", "secContext",
+ "partId", "lsuCtrlReg", "scratchPad",
+ "cpu_mondo_head", "cpu_mondo_tail",
+ "dev_mondo_head", "dev_mondo_tail",
+ "res_error_head", "res_error_tail",
+ "nres_error_head", "nres_error_tail",
+ "tick_intr_sched",
+ "cpu", "tc_num", "tick_cmp", "stick_cmp", "hstick_cmp"),
+ "x86" : ( "regVal" ),
+ }
+
+ isa_fields = isa_fields.get(isa, [])
+ isa_sections = []
+ for sec in cpt.sections():
+ import re
+
+ re_cpu_match = re.match('^(.*sys.*\.cpu[^.]*)\.xc\.(.+)$', sec)
+ # Search for all the execution contexts
+ if not re_cpu_match:
+ continue
+
+ if re_cpu_match.group(2) != "0":
+ # This shouldn't happen as we didn't support checkpointing
+ # of in-order and O3 CPUs.
+ raise ValueError("Don't know how to migrate multi-threaded CPUs "
+ "from version 1")
+
+ isa_section = []
+ for fspec in isa_fields:
+ for (key, value) in cpt.items(sec, raw=True):
+ if key in isa_fields:
+ isa_section.append((key, value))
+
+ name = "%s.isa" % re_cpu_match.group(1)
+ isa_sections.append((name, isa_section))
+
+ for (key, value) in isa_section:
+ cpt.remove_option(sec, key)
+
+ for (sec, options) in isa_sections:
+ # Some intermediate versions of gem5 have empty ISA sections
+ # (after we made the ISA a SimObject, but before we started to
+ # serialize into a separate ISA section).
+ if not cpt.has_section(sec):
+ cpt.add_section(sec)
+ else:
+ if cpt.items(sec):
+ raise ValueError("Unexpected populated ISA section in old "
+ "checkpoint")
+
+ for (key, value) in options:
+ cpt.set(sec, key, value)
+
+# Version 5 of the checkpoint format removes the MISCREG_CPSR_MODE
+# register from the ARM register file.
+def from_4(cpt):
+ if cpt.get('root','isa') == 'arm':
+ for sec in cpt.sections():
+ import re
+ # Search for all ISA sections
+ if re.search('.*sys.*\.cpu.*\.isa', sec):
+ mr = cpt.get(sec, 'miscRegs').split()
+ # Remove MISCREG_CPSR_MODE
+ del mr[137]
+ cpt.set(sec, 'miscRegs', ' '.join(str(x) for x in mr))
+
+# Version 6 of the checkpoint format adds tlb to x86 checkpoints
+def from_5(cpt):
+ if cpt.get('root','isa') == 'x86':
+ for sec in cpt.sections():
+ import re
+ # Search for all ISA sections
+ if re.search('.*sys.*\.cpu.*\.dtb$', sec):
+ cpt.set(sec, '_size', '0')
+ cpt.set(sec, 'lruSeq', '0')
+
+ if re.search('.*sys.*\.cpu.*\.itb$', sec):
+ cpt.set(sec, '_size', '0')
+ cpt.set(sec, 'lruSeq', '0')
+ else:
+ print "ISA is not x86"
+
+# Version 7 of the checkpoint adds support for the IDE dmaAbort flag
+def from_6(cpt):
+ # Update IDE disk devices with dmaAborted
+ for sec in cpt.sections():
+ # curSector only exists in IDE devices, so key on that attribute
+ if cpt.has_option(sec, "curSector"):
+ cpt.set(sec, "dmaAborted", "false")
+
+# Version 8 of the checkpoint adds an ARM MISCREG
+def from_7(cpt):
+ if cpt.get('root','isa') == 'arm':
+ for sec in cpt.sections():
+ import re
+ # Search for all ISA sections
+ if re.search('.*sys.*\.cpu.*\.isa', sec):
+ mr = cpt.get(sec, 'miscRegs').split()
+ if len(mr) == 161:
+ print "MISCREG_TEEHBR already seems to be inserted."
+ else:
+ # Add dummy value for MISCREG_TEEHBR
+ mr.insert(51,0);
+ cpt.set(sec, 'miscRegs', ' '.join(str(x) for x in mr))
+
+# Version 9 of the checkpoint adds an all ARMv8 state
+def from_8(cpt):
+ if cpt.get('root','isa') != 'arm':
+ return
+ import re
+ print "Warning: The size of the FP register file has changed. "\
+ "To get similar results you need to adjust the number of "\
+ "physical registers in the CPU you're restoring into by "\
+ "NNNN."
+ # Find the CPU context's and upgrade their registers
+ for sec in cpt.sections():
+ re_xc_match = re.match('^.*?sys.*?\.cpu(\d+)*\.xc\.*', sec)
+ if not re_xc_match:
+ continue
+
+ # Update floating point regs
+ fpr = cpt.get(sec, 'floatRegs.i').split()
+ # v8 has 128 normal fp and 32 special fp regs compared
+ # to v7's 64 normal fp and 8 special fp regs.
+ # Insert the extra normal fp registers at end of v7 normal fp regs
+ for x in xrange(64):
+ fpr.insert(64, "0")
+ # Append the extra special registers
+ for x in xrange(24):
+ fpr.append("0")
+ cpt.set(sec, 'floatRegs.i', ' '.join(str(x) for x in fpr))
+
+ ir = cpt.get(sec, 'intRegs').split()
+ # Add in v8 int reg state
+ # Splice in R13_HYP
+ ir.insert(20, "0")
+ # Splice in INTREG_DUMMY and SP0 - SP3
+ ir.extend(["0", "0", "0", "0", "0"])
+ cpt.set(sec, 'intRegs', ' '.join(str(x) for x in ir))
+
+ # Update the cpu interrupt field
+ for sec in cpt.sections():
+ re_int_match = re.match("^.*?sys.*?\.cpu(\d+)*$", sec)
+ if not re_int_match:
+ continue
+
+ irqs = cpt.get(sec, "interrupts").split()
+ irqs.append("false")
+ irqs.append("false")
+ cpt.set(sec, "interrupts", ' '.join(str(x) for x in irqs))
+
+ # Update the per cpu interrupt structure
+ for sec in cpt.sections():
+ re_int_match = re.match("^.*?sys.*?\.cpu(\d+)*\.interrupts$", sec)
+ if not re_int_match:
+ continue
+
+ irqs = cpt.get(sec, "interrupts").split()
+ irqs.append("false")
+ irqs.append("false")
+ cpt.set(sec, "interrupts", ' '.join(str(x) for x in irqs))
+
+ # Update the misc regs and add in new isa specific fields
+ for sec in cpt.sections():
+ re_isa_match = re.match("^.*?sys.*?\.cpu(\d+)*\.isa$", sec)
+ if not re_isa_match:
+ continue
+
+ cpt.set(sec, 'haveSecurity', 'false')
+ cpt.set(sec, 'haveLPAE', 'false')
+ cpt.set(sec, 'haveVirtualization', 'false')
+ cpt.set(sec, 'haveLargeAsid64', 'false')
+ cpt.set(sec, 'physAddrRange64', '40')
+
+ # splice in the new misc registers, ~200 -> 605 registers,
+ # ordering does not remain consistent
+ mr_old = cpt.get(sec, 'miscRegs').split()
+ mr_new = [ '0' for x in xrange(605) ]
+
+ # map old v7 miscRegs to new v8 miscRegs
+ mr_new[0] = mr_old[0] # CPSR
+ mr_new[16] = mr_old[1] # CPSR_Q
+ mr_new[1] = mr_old[2] # SPSR
+ mr_new[2] = mr_old[3] # SPSR_FIQ
+ mr_new[3] = mr_old[4] # SPSR_IRQ
+ mr_new[4] = mr_old[5] # SPSR_SVC
+ mr_new[5] = mr_old[6] # SPSR_MON
+ mr_new[8] = mr_old[7] # SPSR_UND
+ mr_new[6] = mr_old[8] # SPSR_ABT
+ mr_new[432] = mr_old[9] # FPSR
+ mr_new[10] = mr_old[10] # FPSID
+ mr_new[11] = mr_old[11] # FPSCR
+ mr_new[18] = mr_old[12] # FPSCR_QC
+ mr_new[17] = mr_old[13] # FPSCR_EXC
+ mr_new[14] = mr_old[14] # FPEXC
+ mr_new[13] = mr_old[15] # MVFR0
+ mr_new[12] = mr_old[16] # MVFR1
+ mr_new[28] = mr_old[17] # SCTLR_RST,
+ mr_new[29] = mr_old[18] # SEV_MAILBOX,
+ mr_new[30] = mr_old[19] # DBGDIDR
+ mr_new[31] = mr_old[20] # DBGDSCR_INT,
+ mr_new[33] = mr_old[21] # DBGDTRRX_INT,
+ mr_new[34] = mr_old[22] # DBGTRTX_INT,
+ mr_new[35] = mr_old[23] # DBGWFAR,
+ mr_new[36] = mr_old[24] # DBGVCR,
+ #mr_new[] = mr_old[25] # DBGECR -> UNUSED,
+ #mr_new[] = mr_old[26] # DBGDSCCR -> UNUSED,
+ #mr_new[] = mr_old[27] # DBGSMCR -> UNUSED,
+ mr_new[37] = mr_old[28] # DBGDTRRX_EXT,
+ mr_new[38] = mr_old[29] # DBGDSCR_EXT,
+ mr_new[39] = mr_old[30] # DBGDTRTX_EXT,
+ #mr_new[] = mr_old[31] # DBGDRCR -> UNUSED,
+ mr_new[41] = mr_old[32] # DBGBVR,
+ mr_new[47] = mr_old[33] # DBGBCR,
+ #mr_new[] = mr_old[34] # DBGBVR_M -> UNUSED,
+ #mr_new[] = mr_old[35] # DBGBCR_M -> UNUSED,
+ mr_new[61] = mr_old[36] # DBGDRAR,
+ #mr_new[] = mr_old[37] # DBGBXVR_M -> UNUSED,
+ mr_new[64] = mr_old[38] # DBGOSLAR,
+ #mr_new[] = mr_old[39] # DBGOSSRR -> UNUSED,
+ mr_new[66] = mr_old[40] # DBGOSDLR,
+ mr_new[67] = mr_old[41] # DBGPRCR,
+ #mr_new[] = mr_old[42] # DBGPRSR -> UNUSED,
+ mr_new[68] = mr_old[43] # DBGDSAR,
+ #mr_new[] = mr_old[44] # DBGITCTRL -> UNUSED,
+ mr_new[69] = mr_old[45] # DBGCLAIMSET,
+ mr_new[70] = mr_old[46] # DBGCLAIMCLR,
+ mr_new[71] = mr_old[47] # DBGAUTHSTATUS,
+ mr_new[72] = mr_old[48] # DBGDEVID2,
+ mr_new[73] = mr_old[49] # DBGDEVID1,
+ mr_new[74] = mr_old[50] # DBGDEVID,
+ mr_new[77] = mr_old[51] # TEEHBR,
+ mr_new[109] = mr_old[52] # v7 SCTLR -> aarc32 SCTLR_NS
+ mr_new[189] = mr_old[53] # DCCISW,
+ mr_new[188] = mr_old[54] # DCCIMVAC,
+ mr_new[183] = mr_old[55] # DCCMVAC,
+ mr_new[271] = mr_old[56] # v7 CONTEXTIDR -> aarch32 CONTEXTIDR_NS,
+ mr_new[274] = mr_old[57] # v7 TPIDRURW -> aarch32 TPIDRURW_NS,
+ mr_new[277] = mr_old[58] # v7 TPIDRURO -> aarch32 TPIDRURO_NS,
+ mr_new[280] = mr_old[59] # v7 TPIDRPRW -> aarch32 TPIDRPRW_NS,
+ mr_new[170] = mr_old[60] # CP15ISB,
+ mr_new[185] = mr_old[61] # CP15DSB,
+ mr_new[186] = mr_old[62] # CP15DMB,
+ mr_new[114] = mr_old[63] # CPACR,
+ mr_new[101] = mr_old[64] # CLIDR,
+ mr_new[100] = mr_old[65] # CCSIDR,
+ mr_new[104] = mr_old[66] # v7 CSSELR -> aarch32 CSSELR_NS,
+ mr_new[163] = mr_old[67] # ICIALLUIS,
+ mr_new[168] = mr_old[68] # ICIALLU,
+ mr_new[169] = mr_old[69] # ICIMVAU,
+ mr_new[172] = mr_old[70] # BPIMVA,
+ mr_new[164] = mr_old[71] # BPIALLIS,
+ mr_new[171] = mr_old[72] # BPIALL,
+ mr_new[80] = mr_old[73] # MIDR,
+ mr_new[126] = mr_old[74] # v7 TTBR0 -> aarch32 TTBR0_NS,
+ mr_new[129] = mr_old[75] # v7 TTBR1 -> aarch32 TTBR1_NS,
+ mr_new[83] = mr_old[76] # TLBTR,
+ mr_new[137] = mr_old[77] # v7 DACR -> aarch32 DACR_NS,
+ mr_new[192] = mr_old[78] # TLBIALLIS,
+ mr_new[193] = mr_old[79] # TLBIMVAIS,
+ mr_new[194] = mr_old[80] # TLBIASIDIS,
+ mr_new[195] = mr_old[81] # TLBIMVAAIS,
+ mr_new[198] = mr_old[82] # ITLBIALL,
+ mr_new[199] = mr_old[83] # ITLBIMVA,
+ mr_new[200] = mr_old[84] # ITLBIASID,
+ mr_new[201] = mr_old[85] # DTLBIALL,
+ mr_new[202] = mr_old[86] # DTLBIMVA,
+ mr_new[203] = mr_old[87] # DTLBIASID,
+ mr_new[204] = mr_old[88] # TLBIALL,
+ mr_new[205] = mr_old[89] # TLBIMVA,
+ mr_new[206] = mr_old[90] # TLBIASID,
+ mr_new[207] = mr_old[91] # TLBIMVAA,
+ mr_new[140] = mr_old[92] # v7 DFSR -> aarch32 DFSR_NS,
+ mr_new[143] = mr_old[93] # v7 IFSR -> aarch32 IFSR_NS,
+ mr_new[155] = mr_old[94] # v7 DFAR -> aarch32 DFAR_NS,
+ mr_new[158] = mr_old[95] # v7 IFAR -> aarch32 IFAR_NS,
+ mr_new[84] = mr_old[96] # MPIDR,
+ mr_new[241] = mr_old[97] # v7 PRRR -> aarch32 PRRR_NS,
+ mr_new[247] = mr_old[98] # v7 NMRR -> aarch32 NMRR_NS,
+ mr_new[131] = mr_old[99] # TTBCR,
+ mr_new[86] = mr_old[100] # ID_PFR0,
+ mr_new[81] = mr_old[101] # CTR,
+ mr_new[115] = mr_old[102] # SCR,
+ # Set the non-secure bit
+ scr = int(mr_new[115])
+ scr = scr | 0x1
+ mr_new[115] = str(scr)
+ ###
+ mr_new[116] = mr_old[103] # SDER,
+ mr_new[165] = mr_old[104] # PAR,
+ mr_new[175] = mr_old[105] # V2PCWPR -> ATS1CPR,
+ mr_new[176] = mr_old[106] # V2PCWPW -> ATS1CPW,
+ mr_new[177] = mr_old[107] # V2PCWUR -> ATS1CUR,
+ mr_new[178] = mr_old[108] # V2PCWUW -> ATS1CUW,
+ mr_new[179] = mr_old[109] # V2POWPR -> ATS12NSOPR,
+ mr_new[180] = mr_old[110] # V2POWPW -> ATS12NSOPW,
+ mr_new[181] = mr_old[111] # V2POWUR -> ATS12NSOUR,
+ mr_new[182] = mr_old[112] # V2POWUW -> ATS12NWOUW,
+ mr_new[90] = mr_old[113] # ID_MMFR0,
+ mr_new[92] = mr_old[114] # ID_MMFR2,
+ mr_new[93] = mr_old[115] # ID_MMFR3,
+ mr_new[112] = mr_old[116] # v7 ACTLR -> aarch32 ACTLR_NS
+ mr_new[222] = mr_old[117] # PMCR,
+ mr_new[230] = mr_old[118] # PMCCNTR,
+ mr_new[223] = mr_old[119] # PMCNTENSET,
+ mr_new[224] = mr_old[120] # PMCNTENCLR,
+ mr_new[225] = mr_old[121] # PMOVSR,
+ mr_new[226] = mr_old[122] # PMSWINC,
+ mr_new[227] = mr_old[123] # PMSELR,
+ mr_new[228] = mr_old[124] # PMCEID0,
+ mr_new[229] = mr_old[125] # PMCEID1,
+ mr_new[231] = mr_old[126] # PMXEVTYPER,
+ mr_new[233] = mr_old[127] # PMXEVCNTR,
+ mr_new[234] = mr_old[128] # PMUSERENR,
+ mr_new[235] = mr_old[129] # PMINTENSET,
+ mr_new[236] = mr_old[130] # PMINTENCLR,
+ mr_new[94] = mr_old[131] # ID_ISAR0,
+ mr_new[95] = mr_old[132] # ID_ISAR1,
+ mr_new[96] = mr_old[133] # ID_ISAR2,
+ mr_new[97] = mr_old[134] # ID_ISAR3,
+ mr_new[98] = mr_old[135] # ID_ISAR4,
+ mr_new[99] = mr_old[136] # ID_ISAR5,
+ mr_new[20] = mr_old[137] # LOCKFLAG,
+ mr_new[19] = mr_old[138] # LOCKADDR,
+ mr_new[87] = mr_old[139] # ID_PFR1,
+ # Set up the processor features register
+ pfr = int(mr_new[87])
+ pfr = pfr | 0x1011
+ mr_new[87] = str(pfr)
+ ###
+ mr_new[238] = mr_old[140] # L2CTLR,
+ mr_new[82] = mr_old[141] # TCMTR
+ mr_new[88] = mr_old[142] # ID_DFR0,
+ mr_new[89] = mr_old[143] # ID_AFR0,
+ mr_new[91] = mr_old[144] # ID_MMFR1,
+ mr_new[102] = mr_old[145] # AIDR,
+ mr_new[146] = mr_old[146] # v7 ADFSR -> aarch32 ADFSR_NS,
+ mr_new[148] = mr_old[147] # AIFSR,
+ mr_new[173] = mr_old[148] # DCIMVAC,
+ mr_new[174] = mr_old[149] # DCISW,
+ mr_new[184] = mr_old[150] # MCCSW -> DCCSW,
+ mr_new[187] = mr_old[151] # DCCMVAU,
+ mr_new[117] = mr_old[152] # NSACR,
+ mr_new[262] = mr_old[153] # VBAR,
+ mr_new[265] = mr_old[154] # MVBAR,
+ mr_new[267] = mr_old[155] # ISR,
+ mr_new[269] = mr_old[156] # FCEIDR -> FCSEIDR,
+ #mr_new[] = mr_old[157] # L2LATENCY -> UNUSED,
+ #mr_new[] = mr_old[158] # CRN15 -> UNUSED,
+ mr_new[599] = mr_old[159] # NOP
+ mr_new[600] = mr_old[160] # RAZ,
+
+ # Set the new miscRegs structure
+ cpt.set(sec, 'miscRegs', ' '.join(str(x) for x in mr_new))
+
+ cpu_prefix = {}
+ # Add in state for ITB/DTB
+ for sec in cpt.sections():
+ re_tlb_match = re.match('(^.*?sys.*?\.cpu(\d+)*)\.(dtb|itb)$', sec)
+ if not re_tlb_match:
+ continue
+
+ cpu_prefix[re_tlb_match.group(1)] = True # Save off prefix to add
+ # Set the non-secure bit (bit 9) to 1 for attributes
+ attr = int(cpt.get(sec, '_attr'))
+ attr = attr | 0x200
+ cpt.set(sec, '_attr', str(attr))
+ cpt.set(sec, 'haveLPAE', 'false')
+ cpt.set(sec, 'directToStage2', 'false')
+ cpt.set(sec, 'stage2Req', 'false')
+ cpt.set(sec, 'bootUncacheability', 'true')
+
+ # Add in extra state for the new TLB Entries
+ for sec in cpt.sections():
+ re_tlbentry_match = re.match('(^.*?sys.*?\.cpu(\d+)*)\.(dtb|itb).TlbEntry\d+$', sec)
+ if not re_tlbentry_match:
+ continue
+
+ # Add in the new entries
+ cpt.set(sec, 'longDescFormat', 'false')
+ cpt.set(sec, 'vmid', '0')
+ cpt.set(sec, 'isHyp', 'false')
+ valid = cpt.get(sec, 'valid')
+ if valid == 'true':
+ cpt.set(sec, 'ns', 'true')
+ cpt.set(sec, 'nstid', 'true')
+ cpt.set(sec, 'pxn', 'true')
+ cpt.set(sec, 'hap', '3')
+ # All v7 code used 2 level page tables
+ cpt.set(sec, 'lookupLevel', '2')
+ attr = int(cpt.get(sec, 'attributes'))
+ # set the non-secure bit (bit 9) to 1
+ # as no previous v7 code used secure code
+ attr = attr | 0x200
+ cpt.set(sec, 'attributes', str(attr))
+ else:
+ cpt.set(sec, 'ns', 'false')
+ cpt.set(sec, 'nstid', 'false')
+ cpt.set(sec, 'pxn', 'false')
+ cpt.set(sec, 'hap', '0')
+ cpt.set(sec, 'lookupLevel', '0')
+ cpt.set(sec, 'outerShareable', 'false')
+
+ # Add d/istage2_mmu and d/istage2_mmu.stage2_tlb
+ for key in cpu_prefix:
+ for suffix in ['.istage2_mmu', '.dstage2_mmu']:
+ new_sec = key + suffix
+ cpt.add_section(new_sec)
+ new_sec = key + suffix + ".stage2_tlb"
+ cpt.add_section(new_sec)
+ # Fill in tlb info with some defaults
+ cpt.set(new_sec, '_attr', '0')
+ cpt.set(new_sec, 'haveLPAE', 'false')
+ cpt.set(new_sec, 'directToStage2', 'false')
+ cpt.set(new_sec, 'stage2Req', 'false')
+ cpt.set(new_sec, 'bootUncacheability', 'false')
+ cpt.set(new_sec, 'num_entries', '0')
+
+# Version 10 adds block_size_bytes to system.ruby
+def from_9(cpt):
+ for sec in cpt.sections():
+ if sec == 'system.ruby':
+ # Use Gem5's default of 64; this should be changed if the to be
+ # upgraded checkpoints were not taken with block-size 64!
+ cpt.set(sec, 'block_size_bytes', '64')
+
+# Checkpoint version 11 (0xB) adds the perfLevel variable in the clock domain
+# and voltage domain simObjects used for DVFS and is serialized and
+# unserialized.
+def from_A(cpt):
+ for sec in cpt.sections():
+ import re
+
+ if re.match('^.*sys.*[._]clk_domain$', sec):
+ # Make _perfLevel equal to 0 which means best performance
+ cpt.set(sec, '_perfLevel', ' '.join('0'))
+ elif re.match('^.*sys.*[._]voltage_domain$', sec):
+ # Make _perfLevel equal to 0 which means best performance
+ cpt.set(sec, '_perfLevel', ' '.join('0'))
+ else:
+ continue
+
+# The change between versions C and D is the addition of support for multiple
+# event queues, so for old checkpoints we must specify that there's only one.
+def from_B(cpt):
+ cpt.set('Globals', 'numMainEventQueues', '1')
+
+# Checkpoint version D uses condition code registers for the ARM
+# architecture; previously the integer register file was used for these
+# registers. To upgrade, we move those 5 integer registers to the ccRegs
+# register file.
+def from_C(cpt):
+ if cpt.get('root','isa') == 'arm':
+ for sec in cpt.sections():
+ import re
+
+ re_cpu_match = re.match('^(.*sys.*\.cpu[^.]*)\.xc\.(.+)$', sec)
+ # Search for all the execution contexts
+ if not re_cpu_match:
+ continue
+
+ items = []
+ for (item,value) in cpt.items(sec):
+ items.append(item)
+ if 'ccRegs' not in items:
+ intRegs = cpt.get(sec, 'intRegs').split()
+
+ ccRegs = intRegs[38:43]
+ del intRegs[38:43]
+
+ ccRegs.append('0') # CCREG_ZERO
+
+ cpt.set(sec, 'intRegs', ' '.join(intRegs))
+ cpt.set(sec, 'ccRegs', ' '.join(ccRegs))
+
migrations = []
migrations.append(from_0)
migrations.append(from_1)
+migrations.append(from_2)
+migrations.append(from_3)
+migrations.append(from_4)
+migrations.append(from_5)
+migrations.append(from_6)
+migrations.append(from_7)
+migrations.append(from_8)
+migrations.append(from_9)
+migrations.append(from_A)
+migrations.append(from_B)
+migrations.append(from_C)
verbose_print = False
verboseprint("\t...completed")
cpt.write(file(path, 'w'))
-
if __name__ == '__main__':
from optparse import OptionParser
parser = OptionParser("usage: %prog [options] <filename or directory>")
projects / gem5.git / blobdiff