def _fake_caps_arch(caps, arch):
'''
Mutate 'caps' to act as an architecture set by fake_kvm_architecture
configuration option.
Arguments:
caps The host capabilities as returned by hooking.read_json.
'''
arch = arch
caps['kvmEnabled'] = True
if cpuarch.is_x86(arch):
caps['emulatedMachines'] = _X86_64_MACHINES
caps['cpuModel'] = 'Intel(Fake) CPU'
flag_list = ['vmx', 'sse2', 'nx']
if cpuarch.real() == cpuarch.X86_64:
flag_list += cpuinfo.flags()
flags = set(flag_list)
caps['cpuFlags'] = ','.join(flags) + ',model_486,model_pentium,' \
'model_pentium2,model_pentium3,model_pentiumpro,' \
'model_qemu32,model_coreduo,model_core2duo,model_n270,' \
'model_Conroe,model_Penryn,model_Nehalem,model_Opteron_G1'
elif cpuarch.is_ppc(arch):
caps['emulatedMachines'] = _PPC64LE_MACHINES
caps['cpuModel'] = 'POWER 8(fake)'
caps['cpuFlags'] = 'powernv,model_POWER8'
elif cpuarch.is_arm(arch):
caps['emulatedMachines'] = _AARCH64_MACHINES
caps['cpuModel'] = 'AARCH64 (fake)'
caps['cpuFlags'] = ''
else:
raise cpuarch.UnsupportedArchitecture(arch)
def _cpuinfo():
'''
Parse cpuinfo-like file, keeping the values in module's runtime variables.
Arguments:
source Optional. Accepts a string indicating path to the cpuinfo-like
file. If not supplied, default path (/proc/cpuinfo) is used.
'''
fields = {}
if cpuarch.is_ppc(cpuarch.real()):
fields['flags'] = ['powernv']
if cpuarch.is_x86(cpuarch.real()):
fields['platform'] = 'unavailable'
fields['machine'] = 'unavailable'
fields['ppcmodel'] = 'unavailable'
if cpuarch.is_arm(cpuarch.real()):
fields['platform'] = 'unavailable'
fields['machine'] = 'unavailable'
fields['ppcmodel'] = 'unavailable'
if cpuarch.is_s390(cpuarch.real()):
fields['platform'] = 'unavailable'
fields['machine'] = 'unavailable'
fields['ppcmodel'] = 'unavailable'
with open(_PATH) as info:
for line in info:
if not line.strip():
continue
key, value = [part.strip() for part in line.split(':', 1)]
if key == 'flags': # x86_64
fields['flags'] = value.split()
elif key == 'Features': # aarch64
fields['flags'] = value.split()
elif key == 'features': # s390
fields['flags'] = value.split()
elif key == 'cpu MHz': # x86_64
fields['frequency'] = value
elif key == 'BogoMIPS': # aarch64
fields['frequency'] = value
elif key == 'clock': # ppc64, ppc64le
fields['frequency'] = value[:-3]
elif key == 'cpu MHz dynamic': # s390
# s390 reports both static and dynamic frequencies with
# dynamic <= stat (nominal), so dynamic matches the
# x86_64 frequency semantics.
fields['frequency'] = value
elif key == 'model name': # x86_64
fields['model'] = value
elif key == 'CPU part': # aarch64
fields['model'] = value
elif re.match(r'processor \d+', key): # s390
match = re.search(r'\bmachine\s*=\s*(\w+)', value)
if match:
fields['model'] = match.group(1)
elif key == 'model': # ppc64le
fields['ppcmodel'] = value
elif key == 'cpu': # ppc64, ppc64le
fields['model'] = value
elif key == 'platform': # ppc64, ppc64le
fields['platform'] = value
elif key == 'machine': # ppc64, ppc64le
fields['machine'] = value
if len(fields) == 6:
break
# Older s390 machine versions don't report frequency.
if 'frequency' not in fields:
fields['frequency'] = 'unavailable'
return CpuInfo(**fields)
def _cpuinfo():
'''
Parse cpuinfo-like file, keeping the values in module's runtime variables.
Arguments:
source Optional. Accepts a string indicating path to the cpuinfo-like
file. If not supplied, default path (/proc/cpuinfo) is used.
'''
fields = {}
if cpuarch.is_ppc(cpuarch.real()):
fields['flags'] = ['powernv']
if cpuarch.is_x86(cpuarch.real()):
fields['platform'] = 'unavailable'
fields['machine'] = 'unavailable'
fields['ppcmodel'] = 'unavailable'
if cpuarch.is_arm(cpuarch.real()):
fields['platform'] = 'unavailable'
fields['machine'] = 'unavailable'
fields['ppcmodel'] = 'unavailable'
if cpuarch.is_s390(cpuarch.real()):
fields['platform'] = 'unavailable'
fields['machine'] = 'unavailable'
fields['ppcmodel'] = 'unavailable'
with open(_PATH) as info:
for line in info:
if not line.strip():
continue
key, value = [part.strip() for part in line.split(':', 1)]
if key == 'flags': # x86_64
fields['flags'] = value.split()
elif key == 'Features': # aarch64
fields['flags'] = value.split()
elif key == 'features': # s390
fields['flags'] = value.split()
elif key == 'cpu MHz': # x86_64
fields['frequency'] = value
elif key == 'BogoMIPS': # aarch64
fields['frequency'] = value
elif key == 'clock': # ppc64, ppc64le
fields['frequency'] = value[:-3]
elif key == 'cpu MHz dynamic': # s390
# s390 reports both static and dynamic frequencies with
# dynamic <= stat (nominal), so dynamic matches the
# x86_64 frequency semantics.
fields['frequency'] = value
elif key == 'model name': # x86_64
fields['model'] = value
elif key == 'CPU part': # aarch64
fields['model'] = value
elif re.match(r'processor \d+', key): # s390
match = re.search(r'\bmachine\s*=\s*(\w+)', value)
if match:
fields['model'] = match.group(1)
elif key == 'model': # ppc64le
fields['ppcmodel'] = value
elif key == 'cpu': # ppc64, ppc64le
fields['model'] = value
elif key == 'platform': # ppc64, ppc64le
fields['platform'] = value
elif key == 'machine': # ppc64, ppc64le
fields['machine'] = value
if len(fields) == 6:
break
# Older s390 machine versions don't report frequency.
if 'frequency' not in fields:
fields['frequency'] = 'unavailable'
return CpuInfo(**fields)