def check_env():
"""Check if there is appropriate environment on this system"""
if os.path.exists(PY_CACHE):
shutil.rmtree(PY_CACHE)
# check cpu vendor id
if not vendor_check():
parser_lib.print_red("Please run this tools on {}!".format(CPU_VENDOR))
sys.exit(1)
# check if required tools are exists
for excute in BIN_LIST:
res = subprocess.Popen("which {}".format(excute),
shell=True, stdout=subprocess.PIPE,
stderr=subprocess.PIPE, close_fds=True)
line = res.stdout.readline().decode('ascii')
if not line:
parser_lib.print_yel("'{}' not found, please install it!".format(excute))
sys.exit(1)
if excute == 'cpuid':
res = subprocess.Popen("cpuid -v",
shell=True, stdout=subprocess.PIPE,
stderr=subprocess.PIPE, close_fds=True)
line = res.stdout.readline().decode('ascii')
version = line.split()[2]
if int(version) < 20170122:
parser_lib.print_yel("Need CPUID version >= 20170122")
sys.exit(1)
if os.path.exists(OUTPUT):
shutil.rmtree(OUTPUT)
def store_cx_data(sysnode1, sysnode2, config):
"""This will get Cx data of power and store it to PackedCx"""
i = 0
state_cpus = {}
with open(sysnode1, 'r') as acpi_idle:
idle_driver = acpi_idle.read(32)
if idle_driver.find("acpi_idle") == -1:
if idle_driver.find("intel_idle") == 0:
parser_lib.print_red("The tool need to run with acpi_idle driver, " +
"please add intel_idle.max_cstate=0 in kernel " +
"cmdline to fall back to acpi_idle driver", err=True)
else:
parser_lib.print_red("acpi_idle driver is not found.", err=True)
sys.exit(1)
files = os.listdir(sysnode2)
for d_path in files:
if os.path.isdir(sysnode2+d_path):
state_cpus[d_path] = sysnode2+d_path
state_cpus = sorted(state_cpus.keys())
del state_cpus[0]
cpu_state = ['desc', 'latency', 'power']
acpi_hw_type = ['HLT', 'MWAIT', 'IOPORT']
cx_state = defaultdict(dict)
for state in state_cpus:
i += 1
for item in cpu_state:
cx_data_file = open(sysnode2+state+'/'+item, 'r')
cx_state[state][item] = cx_data_file.read().strip()
cx_state[state]['type'] = i
if cx_state[state][cpu_state[0]].find(acpi_hw_type[0]) != -1 or \
cx_state[state][cpu_state[0]].find(acpi_hw_type[1]) != -1:
PackedCx.space_id_8b = SPACE_ID[0x7F]
if cx_state[state][cpu_state[0]].find(acpi_hw_type[0]) != -1:
PackedCx.bit_width_8b = 0
PackedCx.bit_offset_8b = 0
PackedCx.access_size_8b = 0
PackedCx.address_64b = 0
else:
PackedCx.bit_width_8b = 1
PackedCx.bit_offset_8b = 2
PackedCx.access_size_8b = 1
PackedCx.address_64b = cx_state[state][cpu_state[0]].split()[3]
elif cx_state[state][cpu_state[0]].find(acpi_hw_type[2]) != -1:
PackedCx.space_id_8b = SPACE_ID[1]
PackedCx.bit_width_8b = 8
PackedCx.bit_offset_8b = 0
PackedCx.access_size_8b = 0
PackedCx.address_64b = cx_state[state][cpu_state[0]].split()[2]
print("\t\t{{{{{}, 0x{:0>2X}U, 0x{:0>2X}U, 0x{:0>2X}U, ".format(
PackedCx.space_id_8b, PackedCx.bit_width_8b, PackedCx.bit_offset_8b,
PackedCx.access_size_8b), file=config, end="")
print("0x{:0>2X}UL}}, 0x{:0>2X}U, 0x{:0>2X}U, 0x{:0>2X}U}},".format(
int(str(PackedCx.address_64b), 16),
cx_state[state]['type'], int(cx_state[state][cpu_state[1]]),
int(cx_state[state][cpu_state[2]])), file=config)
def check_env():
"""Check if there is appropriate environment on this system"""
if os.path.exists(PY_CACHE):
shutil.rmtree(PY_CACHE)
# check cpu msr file
cpu_dirs = "/dev/cpu"
if check_msr_files(cpu_dirs):
res = subprocess.Popen("modprobe msr",
shell=True,
stdout=subprocess.PIPE,
stderr=subprocess.PIPE,
close_fds=True)
err_msg = res.stderr.readline().decode('ascii')
if err_msg:
parser_lib.print_red("{}".format(err_msg), err=True)
exit(-1)
msr_info = check_msr_files(cpu_dirs)
if msr_info:
for cpu_num in msr_info:
parser_lib.print_red("Missing CPU msr file in the {}/{}/".format(
cpu_dirs, cpu_num),
err=True)
parser_lib.print_red(
"Missing CPU msr file, please check the value of CONFIG_X86_MSR in the kernel config.",
err=True)
exit(-1)
# check cpu vendor id
if not vendor_check():
parser_lib.print_red("Please run this tools on {}!".format(CPU_VENDOR))
sys.exit(1)
if os.path.exists(OUTPUT):
shutil.rmtree(OUTPUT)
def store_mmcfg_base_data(mmcfg_node, config):
print("\t/* PCI mmcfg base of MCFG */", file=config)
with open(mmcfg_node, 'rb') as mmcfg:
mmcfg.read(MCFG_OFFSET)
mmcfg_len_obj = mmcfg.read(DWORD_LEN)
mmcfg_len_int = int.from_bytes(mmcfg_len_obj, 'little')
if mmcfg_len_int > MCFG_ENTRY1_OFFSET:
parser_lib.print_red("Multiple PCI segment groups is not supported!", err=True)
sys.exit(1)
mmcfg.seek(MCFG_ENTRY0_BASE_OFFSET, 0)
mmcfg_base_addr_obj = mmcfg.read(DWORD_LEN)
mmcfg_base_addr = int.from_bytes(mmcfg_base_addr_obj, 'little')
print("\t#define DEFAULT_PCI_MMCFG_BASE {}UL".format(hex(mmcfg_base_addr)), file=config)
def store_px_data(sysnode, config):
"""This will get Px data of power and store it to px data
:param sysnode: the path of system power state, such as: /sys/devices/system/cpu/
:param config: file pointer that opened for writing board config information
"""
px_tmp = PxPkg()
px_data = {}
try:
with open(sysnode + 'cpu0/cpufreq/scaling_driver', 'r') as f_node:
freq_driver = f_node.read()
if freq_driver.find("acpi-cpufreq") == -1:
parser_lib.print_yel("The Px data for ACRN relies on " +\
"acpi-cpufreq driver but it is not found, ", warn=True, end=False)
if freq_driver.find("intel_pstate") == 0:
print("please add intel_pstate=disable in kernel " +\
"cmdline to fall back to acpi-cpufreq driver")
else:
parser_lib.print_yel(
"please make sure ACPI Pstate is enabled in BIOS.",
warn=True)
print("\t/* Px data is not available */", file=config)
return
except IOError:
parser_lib.print_yel("No scaling_driver found.", warn=True)
print("\t/* Px data is not available */", file=config)
return
try:
with open(sysnode + 'cpufreq/boost', 'r') as f_node:
boost = f_node.read()
except IOError:
boost = 0
parser_lib.print_yel("CPU turbo is not enabled!")
with open(sysnode + 'cpu0/cpufreq/scaling_available_frequencies',
'r') as f_node:
freqs = f_node.read()
with open(sysnode + 'cpu0/cpufreq/cpuinfo_transition_latency') as f_node:
latency = int(f_node.read().strip())
latency = latency // 1000
i = 0
p_cnt = 0
for freq in freqs.split():
if boost != 0 and i == 0:
try:
subprocess.check_call('/usr/sbin/rdmsr 0x1ad',
shell=True,
stdout=subprocess.PIPE)
except subprocess.CalledProcessError:
parser_lib.print_red("MSR 0x1ad not support in this platform!",
err=True)
sys.exit(1)
res = subprocess.Popen('/usr/sbin/rdmsr 0x1ad',
shell=True,
stdout=subprocess.PIPE,
stderr=subprocess.PIPE,
close_fds=True)
result = res.stdout.readline().strip()
#max_ratio_cpu = result[-2:]
ctl_state = int(result[-2:], 16) << 8
i += 1
else:
ctl_state = int(freq) // 100000 << 8
px_tmp.core_freq = int(int(freq) / 1000)
px_tmp.power = 0
px_tmp.trans_latency = latency
px_tmp.bus_latency = latency
px_tmp.control = ctl_state
px_tmp.status = ctl_state
px_data[freq] = px_tmp
print("\t{{0x{:0>2X}UL, 0x{:0>2X}UL, 0x{:0>2X}UL, ".format(
px_data[freq].core_freq, px_data[freq].power,
px_data[freq].trans_latency),
file=config,
end="")
print("0x{:0>2X}UL, 0x{:0>6X}UL, 0x{:0>6X}UL}},\t/* P{} */".format(
px_data[freq].bus_latency, px_data[freq].control,
px_data[freq].status, p_cnt),
file=config)
p_cnt += 1
def check_permission():
"""Check if it is root permission"""
if os.getuid():
parser_lib.print_red(
"You need run this tool with root privileges (sudo)!")
sys.exit(1)
def check_permission():
"""Check if it is root permission"""
if os.getuid():
parser_lib.print_red("You need run with sudo!")
sys.exit(1)
def store_px_data(sysnode, config):
"""This will get Px data of power and store it to px data"""
px_tmp = PxPkg()
px_data = {}
with open(sysnode+'cpu0/cpufreq/scaling_driver', 'r') as f_node:
freq_driver = f_node.read()
if freq_driver.find("acpi-cpufreq") == -1:
if freq_driver.find("intel_pstate") == 0:
parser_lib.print_red("The tool need to run with acpi_cpufreq driver, " +
"please add intel_pstate=disable in kernel cmdline " +
"to fall back to acpi-cpufreq driver.", err=True)
else:
parser_lib.print_red("acpi-cpufreq driver is not found.", err=True)
sys.exit(1)
try:
with open(sysnode+'cpufreq/boost', 'r') as f_node:
boost = f_node.read()
except IOError:
boost = 0
parser_lib.print_yel("CPU turbo is not enabled!")
with open(sysnode + 'cpu0/cpufreq/scaling_available_frequencies', 'r') as f_node:
freqs = f_node.read()
with open(sysnode + 'cpu0/cpufreq/cpuinfo_transition_latency') as f_node:
latency = int(f_node.read().strip())
latency = latency//1000
i = 0
p_cnt = 0
for freq in freqs.split():
if boost != 0 and i == 0:
try:
subprocess.check_call('/usr/sbin/rdmsr 0x1ad', shell=True, stdout=subprocess.PIPE)
except subprocess.CalledProcessError:
parser_lib.print_red("MSR 0x1ad not support in this platform!", err=True)
sys.exit(1)
res = subprocess.Popen('/usr/sbin/rdmsr 0x1ad', shell=True,
stdout=subprocess.PIPE, stderr=subprocess.PIPE, close_fds=True)
result = res.stdout.readline().strip()
#max_ratio_cpu = result[-2:]
ctl_state = int(result[-2:], 16) << 8
i += 1
else:
ctl_state = int(freq)//100000 << 8
px_tmp.core_freq = int(int(freq) / 1000)
px_tmp.power = 0
px_tmp.trans_latency = latency
px_tmp.bus_latency = latency
px_tmp.control = ctl_state
px_tmp.status = ctl_state
px_data[freq] = px_tmp
print("\t\t{{0x{:0>2X}UL, 0x{:0>2X}UL, 0x{:0>2X}UL, ".format(
px_data[freq].core_freq, px_data[freq].power,
px_data[freq].trans_latency), file=config, end="")
print("0x{:0>2X}UL, 0x{:0>6X}UL, 0x{:0>6X}UL}}, /* P{} */".format(
px_data[freq].bus_latency, px_data[freq].control,
px_data[freq].status, p_cnt), file=config)
p_cnt += 1
