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#!/usr/bin/env python
# vim:sw=4 ts=4 et
# A version of examples/showxlat.c translated to Python.
# The script is not meant to be particularly useful, but it should
# demonstrate use of the libaddrxlat Python API.
#
# This file is in public domain.
from __future__ import print_function
import sys
import kdumpfile
import addrxlat
def addrspace_str(addrspace):
if addrspace == addrxlat.KPHYSADDR:
return 'KPHYSADDR'
elif addrspace == addrxlat.MACHPHYSADDR:
return 'MACHPHYSADDR'
elif addrspace == addrxlat.KVADDR:
return 'KVADDR'
elif addrspace == addrxlat.NOADDR:
return 'NOADDR'
else:
return '<addrspace {:d}>'.format(addrspace)
def fulladdr_str(addr):
result = addrspace_str(addr.addrspace)
if addr.addrspace != addrxlat.NOADDR:
result += ':0x{:x}'.format(addr.addr)
return result
def print_target_as(meth):
print(' target_as={}'.format(addrspace_str(meth.target_as)))
def print_linear(meth):
print('LINEAR')
print_target_as(meth)
print(' off=0x{:x}'.format(meth.off))
pte_formats = {
addrxlat.PTE_NONE: 'none',
addrxlat.PTE_PFN32: 'pfn32',
addrxlat.PTE_PFN64: 'pfn64',
addrxlat.PTE_AARCH64: 'aarch64',
addrxlat.PTE_AARCH64_LPA: 'aarch64_lpa',
addrxlat.PTE_AARCH64_LPA2: 'aarch64_lpa2',
addrxlat.PTE_ARM: 'arm',
addrxlat.PTE_IA32: 'ia32',
addrxlat.PTE_IA32_PAE: 'ia32_pae',
addrxlat.PTE_X86_64: 'x86_64',
addrxlat.PTE_RISCV32: 'riscv32',
addrxlat.PTE_RISCV64: 'riscv64',
addrxlat.PTE_S390X: 's390x',
addrxlat.PTE_PPC64_LINUX_RPN30: 'ppc64_linux_rpn30',
}
def print_pgt(meth):
print('PGT')
print_target_as(meth)
print(' root={}'.format(fulladdr_str(meth.root)))
fmt = pte_formats.get(meth.pte_format, meth.pte_format)
print(' pte_format={}'.format(fmt))
print(' fields={}'.format(','.join(str(i) for i in meth.fields)))
def print_lookup(meth):
print('LOOKUP')
print_target_as(meth)
print(' endoff=0x{:x}'.format(meth.endoff))
for elem in meth.tbl:
print(' {:x} -> {:x}'.format(elem[0], elem[1]))
def print_memarr(meth):
print('MEMARR')
print_target_as(meth)
print(' base={}'.format(fulladdr_str(meth.base)))
print(' shift={}'.format(meth.shift))
print(' elemsz={}'.format(meth.elemsz))
print(' valsz={}'.format(meth.valsz))
def print_meth(system, name):
meth = system.get_meth(addrxlat.__dict__['SYS_METH_{}'.format(name)])
if meth.kind == addrxlat.NOMETH:
return
print('METH_{}: '.format(name), end='')
if meth.kind == addrxlat.CUSTOM:
print('CUSTOM')
elif meth.kind == addrxlat.LINEAR:
print_linear(meth)
elif meth.kind == addrxlat.PGT:
print_pgt(meth)
elif meth.kind == addrxlat.LOOKUP:
print_lookup(meth)
elif meth.kind == addrxlat.MEMARR:
print_memarr(meth)
else:
print('<meth kind {:d}>'.format(meth.kind))
print()
def print_map(system, name):
print('MAP_{}:'.format(name))
map = system.get_map(addrxlat.__dict__['SYS_MAP_{}'.format(name)])
if map is None:
return
addr = 0
for range in map:
if range.meth in meth_names:
name = meth_names[range.meth]
else:
name = '{:d}'.format(range.meth)
print('{:x}-{:x}: {}'.format(addr, addr + range.endoff, name))
addr += range.endoff + 1
def dump_addrxlat(ctx):
system = k.get_addrxlat_sys()
print_meth(system, 'PGT')
print_meth(system, 'UPGT')
print_meth(system, 'DIRECT')
print_meth(system, 'KTEXT')
print_meth(system, 'VMEMMAP')
print_meth(system, 'RDIRECT')
print_meth(system, 'MACHPHYS_KPHYS')
print_meth(system, 'KPHYS_MACHPHYS')
print_map(system, 'HW')
print()
print_map(system, 'KV_PHYS')
print()
print_map(system, 'KPHYS_DIRECT')
print()
print_map(system, 'MACHPHYS_KPHYS')
print()
print_map(system, 'KPHYS_MACHPHYS')
if __name__ == '__main__':
if len(sys.argv) < 2 or len(sys.argv) > 3:
print('Usage: {} <dumpfile> [<ostype>]'.format(sys.argv[0]),
file=sys.stderr)
exit(1)
k = kdumpfile.kdumpfile(sys.argv[1])
meth_names = {}
for name, val in addrxlat.__dict__.items():
if name.startswith('SYS_METH_') and name != 'SYS_METH_NUM':
meth_names[val] = name[9:]
if len(sys.argv) > 2:
k.attr['addrxlat.ostype'] = sys.argv[2]
dump_addrxlat(k)
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