def nested_virtualization():
if cpuarch.is_ppc(cpuarch.real()):
return NestedVirtualization(False, None)
if cpuarch.is_s390(cpuarch.real()):
kvm_modules = ("kvm", )
else:
kvm_modules = ("kvm_intel", "kvm_amd")
for kvm_module in kvm_modules:
kvm_module_path = "/sys/module/%s/parameters/nested" % kvm_module
try:
with open(kvm_module_path) as f:
if f.readline().strip() in ("Y", "1"):
return NestedVirtualization(True, kvm_module)
except IOError as e:
if e.errno != errno.ENOENT:
logging.exception('Error checking %s nested virtualization',
kvm_module)
else:
logging.debug('%s nested virtualization not detected',
kvm_module)
logging.debug('Could not determine status of nested ' 'virtualization')
return NestedVirtualization(False, None)
def nested_virtualization():
if cpuarch.is_ppc(cpuarch.real()):
return NestedVirtualization(False, None)
if cpuarch.is_s390(cpuarch.real()):
kvm_modules = ("kvm",)
else:
kvm_modules = ("kvm_intel", "kvm_amd")
for kvm_module in kvm_modules:
kvm_module_path = "/sys/module/%s/parameters/nested" % kvm_module
try:
with open(kvm_module_path) as f:
if f.readline().strip() in ("Y", "1"):
return NestedVirtualization(True, kvm_module)
except IOError:
logging.debug('%s nested virtualization '
'not detected' % kvm_module, exc_info=True)
logging.debug('Could not determine status of nested '
'virtualization')
return NestedVirtualization(False, None)
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)