def native_read_pci_reg(self,
bus,
device,
function,
offset,
size,
domain=0):
device_name = "{domain:04x}:{bus:02x}:{device:02x}.{function}".format(
domain=domain, bus=bus, device=device, function=function)
device_path = "/sys/bus/pci/devices/{}/config".format(device_name)
if not os.path.exists(device_path):
if offset < 256:
from chipsec.helper.linux.legacy_pci import LEGACY_PCI
pci = LEGACY_PCI()
value = pci.read_pci_config(bus, device, function, offset)
return value
else:
byte = b"\xff"
return defines.unpack1(byte * size, size)
try:
config = open(device_path, "rb")
except IOError as err:
raise OsHelperError("Unable to open {}".format(device_path),
err.errno)
config.seek(offset)
reg = config.read(size)
config.close()
reg = defines.unpack1(reg, size)
return reg
def native_read_mmio_reg(self, phys_address, size):
if self.devmem_available():
region = self.memory_mapping(phys_address, size)
if not region:
os.lseek(self.dev_mem, phys_address, os.SEEK_SET)
reg = os.read(self.dev_mem, size)
else:
region.seek(phys_address - region.start)
reg = region.read(size)
return defines.unpack1(reg, size)
def native_read_mmio_reg(self, phys_address, size):
if self.devmem_available():
region = self.memory_mapping(phys_address, size)
if not region:
os.lseek(self.dev_mem, phys_address, os.SEEK_SET)
reg = os.read(self.dev_mem, size)
else:
region.seek(phys_address - region.start)
reg = region.read(size)
return defines.unpack1(reg, size)
def native_read_mmio_reg(self, bar_base, bar_size, offset, size):
if bar_size is None: bar_size = offset + size
if self.devmem_available():
region = self.memory_mapping(bar_base, bar_size)
if not region:
self.native_map_io_space(bar_base, bar_size, 0)
region = self.memory_mapping(bar_base, bar_size)
if not region: logger().error("Unable to map region {:08x}".format(bar_base))
region.seek(bar_base + offset - region.start)
reg = region.read(size)
return defines.unpack1(reg, size)
def native_read_mmio_reg(self, bar_base, bar_size, offset, size):
if bar_size is None: bar_size = offset + size
if self.devmem_available():
region = self.memory_mapping(bar_base, bar_size)
if not region:
self.native_map_io_space(bar_base, bar_size)
region = self.memory_mapping(bar_base, bar_size)
if not region: logger().error("Unable to map region {:08x}".format(bar_base))
region.seek(bar_base + offset - region.start)
reg = region.read(size)
return defines.unpack1(reg, size)
def native_read_pci_reg(self, bus, device, function, offset, size, domain=0):
device_name = "{domain:04x}:{bus:02x}:{device:02x}.{function}".format(
domain=domain, bus=bus, device=device, function=function)
device_path = "/sys/bus/pci/devices/{}/config".format(device_name)
try:
config = open(device_path, "rb")
except IOError as err:
raise OsHelperError("Unable to open {}".format(device_path), err.errno)
config.seek(offset)
reg = config.read(size)
config.close()
reg = defines.unpack1(reg, size)
return reg
def native_read_pci_reg(self, bus, device, function, offset, size, domain=0):
device_name = "{domain:04x}:{bus:02x}:{device:02x}.{function}".format(
domain=domain, bus=bus, device=device, function=function)
device_path = "/sys/bus/pci/devices/{}/config".format(device_name)
try:
config = open(device_path, "rb")
except IOError as err:
raise OsHelperError("Unable to open {}".format(device_path), err.errno)
config.seek(offset)
reg = config.read(size)
config.close()
reg = defines.unpack1(reg, size)
return reg
def read_mmio_reg(self, phys_address, size):
in_buf = struct.pack( "2" +self._pack, phys_address, size)
out_buf = self.ioctl(IOCTL_RDMMIO, in_buf)
reg = out_buf[:size]
return defines.unpack1(reg, size)
def read_mmio_reg(self, phys_address, size):
in_buf = struct.pack( "2"+self._pack, phys_address, size)
out_buf = self.ioctl(IOCTL_RDMMIO, in_buf)
reg = out_buf[:size]
return defines.unpack1(reg, size)
