def check_spd_wd(self):
self.logger.start_test("SPD Write Disable")
try:
_smbus = smbus.SMBus(self.cs)
_spd = spd.SPD(_smbus)
except BaseException as msg:
self.logger.error(msg)
self.res = ModuleResult.ERROR
return self.res
spd_wd_reg = self.cs.read_register('SMBUS_HCFG')
spd_wd = self.cs.get_register_field('SMBUS_HCFG', spd_wd_reg, 'SPD_WD')
dimms = _spd.detect()
if 1 == spd_wd:
self.logger.log_passed_check("SPD Write Disable is set")
self.res = ModuleResult.PASSED
else:
if dimms:
self.logger.log_failed_check(
"SPD Write Disable is not set and SPDs were detected")
self.res = ModuleResult.FAILED
else:
self.logger.log_information_check(
"SPD Write Disable is not set, but no SPDs detected")
self.res = ModuleResult.INFORMATION
return self.res
def run(self):
if len(self.argv) < 3:
print SPDCommand.__doc__
return
try:
_smbus = smbus.SMBus(self.cs)
_spd = spd.SPD(_smbus)
except BaseException, msg:
print msg
return
def run(self):
try:
_smbus = smbus.SMBus(self.cs)
self._spd = spd.SPD(_smbus)
except BaseException as msg:
self.logger.error(msg)
return
t = time.time()
if not _smbus.is_SMBus_supported():
self.logger.log("[CHIPSEC] SMBus controller is not supported")
return
self.dev_addr = spd.SPD_SMBUS_ADDRESS
self.func()
self.logger.log(
"[CHIPSEC] (spd) time elapsed {:.3f}".format(time.time() - t))
def run(self):
if len(self.argv) < 3:
print(SPDCommand.__doc__)
return
try:
_smbus = smbus.SMBus(self.cs)
_spd = spd.SPD(_smbus)
except BaseException as msg:
print(msg)
return
op = self.argv[2]
t = time.time()
if not _smbus.is_SMBus_supported():
self.logger.log("[CHIPSEC] SMBus controller is not supported")
return
#smbus.display_SMBus_info()
dev_addr = spd.SPD_SMBUS_ADDRESS
if ('detect' == op):
self.logger.log("[CHIPSEC] Searching for DIMMs with SPD..")
_dimms = _spd.detect()
if _dimms is not None:
self.logger.log("Detected the following SPD devices:")
for _dimm in _dimms:
self.logger.log("{}: 0x{:02X}".format(
spd.SPD_DIMMS[_dimm], _dimm))
elif ('dump' == op):
if len(self.argv) > 3:
dev = self.argv[3].upper()
dev_addr = spd.SPD_DIMM_ADDRESSES[
dev] if dev in spd.SPD_DIMM_ADDRESSES else int(
self.argv[3], 16)
if not _spd.isSPDPresent(dev_addr):
self.logger.log(
"[CHIPSEC] SPD for DIMM 0x{:X} is not found".format(
dev_addr))
return
_spd.decode(dev_addr)
else:
_dimms = _spd.detect()
for d in _dimms:
_spd.decode(d)
elif ('read' == op) or ('write' == op):
if len(self.argv) > 3:
dev = self.argv[3].upper()
dev_addr = spd.SPD_DIMM_ADDRESSES[
dev] if dev in spd.SPD_DIMM_ADDRESSES else int(
self.argv[3], 16)
if not _spd.isSPDPresent(dev_addr):
self.logger.log(
"[CHIPSEC] SPD for DIMM 0x{:X} is not found".format(
dev_addr))
return
off = int(self.argv[4], 16)
if ('read' == op):
val = _spd.read_byte(off, dev_addr)
self.logger.log(
"[CHIPSEC] SPD read: offset 0x{:X} = 0x{:X}".format(
off, val))
elif ('write' == op):
val = int(self.argv[5], 16)
self.logger.log(
"[CHIPSEC] SPD write: offset 0x{:X} = 0x{:X}".format(
off, val))
_spd.write_byte(off, val, dev_addr)
else:
self.logger.error(
"unknown command-line option '{:.32}'".format(op))
self.logger.log(SPDCommand.__doc__)
return
self.logger.log(
"[CHIPSEC] (spd) time elapsed {:.3f}".format(time.time() - t))