acrn-hypervisor/misc/acrn-config/target/parser_lib.py

142 lines
4.1 KiB
Python

# Copyright (C) 2019 Intel Corporation. All rights reserved.
#
# SPDX-License-Identifier: BSD-3-Clause
#
import os
import subprocess
BIOS_INFO_KEY = ['BIOS Information', 'Vendor:', 'Version:', 'Release Date:', 'BIOS Revision:']
BASE_BOARD_KEY = ['Base Board Information', 'Manufacturer:', 'Product Name:', 'Version:']
def check_dmi():
"""Check if this tool run on native os"""
return os.path.exists("/sys/firmware/dmi")
def print_yel(msg, warn=False):
"""Output the message with the color of yellow
:param msg: the stings which will be output to STDOUT
:param warn: the condition if needs to be output the color of yellow with 'Warning'
"""
if warn:
print("\033[1;33mWarning\033[0m:"+msg)
else:
print("\033[1;33m{0}\033[0m".format(msg))
def print_red(msg, err=False):
"""Output the messag with the color of red
:param msg: the stings which will be output to STDOUT
:param err: the condition if needs to be output the color of red with 'Error'
"""
if err:
print("\033[1;31mError\033[0m:"+msg)
else:
print("\033[1;31m{0}\033[0m".format(msg))
def decode_stdout(resource):
"""Decode the information and return one line of the decoded information
:param resource: it contains information produced by subprocess.Popen method
"""
line = resource.stdout.readline().decode('ascii')
return line
def handle_hw_info(line, hw_info):
"""Handle the hardware information
:param line: one line of information which had decoded to 'ASCII'
:param hw_info: the list which contains key strings what can describe bios/board
"""
for board_line in hw_info:
if board_line == " ".join(line.split()[0:1]) or \
board_line == " ".join(line.split()[0:2]) or \
board_line == " ".join(line.split()[0:3]):
return True
return False
def handle_pci_dev(line):
"""Handle if it match PCI device information pattern
:param line: one line of information which had decoded to 'ASCII'
"""
if "Region" in line and "Memory at" in line:
return True
if line != '\n':
if line.split()[0][2:3] == ':' and line.split()[0][5:6] == '.':
return True
return False
def cmd_execute(cmd):
"""Excute cmd and retrun raw information
:param cmd: command what can be executed in shell
"""
res = subprocess.Popen(cmd, shell=True,
stdout=subprocess.PIPE, stderr=subprocess.PIPE, close_fds=True)
return res
def handle_root_dev(line):
"""Handle if it match root device information pattern
:param line: one line of information which had decoded to 'ASCII'
"""
for root_type in line.split():
if "ext4" in root_type or "ext3" in root_type:
return True
return False
def dump_execute(cmd, desc, config):
"""Execute cmd and get information
:param cmd: command what can be executed in shell
:param desc: the string indicated what class information store to board.xml
:param config: file pointer that opened for writing board information
"""
val_dmi = check_dmi()
print("\t<{0}>".format(desc), file=config)
if not val_dmi and "dmidecode" in cmd:
print("\t\t</{0}>".format(desc), file=config)
return
res = cmd_execute(cmd)
while True:
line = res.stdout.readline().decode('ascii')
if not line:
break
if desc == "PCI_DEVICE":
if "prog-if" in line:
line = line.rsplit('(', 1)[0] + '\n'
ret = handle_pci_dev(line)
if not ret:
continue
if desc == "BIOS_INFO":
ret = handle_hw_info(line, BIOS_INFO_KEY)
if not ret:
continue
if desc == "BASE_BOARD_INFO":
ret = handle_hw_info(line, BASE_BOARD_KEY)
if not ret:
continue
if desc == "BLOCK_DEVICE_INFO":
ret = handle_root_dev(line)
if not ret:
continue
print("\t{}".format(line.strip()), file=config)
print("\t</{0}>".format(desc), file=config)