github/acrn-hypervisor
1
0
Fork 0
mirror of https://github.com/projectacrn/acrn-hypervisor.git synced 2025-06-22 05:30:24 +00:00
Code Issues Projects Releases Wiki Activity

config-tools: create virtual acpi of passthrough tpm2

Browse Source 
Create virtual acpi table of tpm2 based on the raw data if the tpm2
device is presented and the passthrough tpm2 is enabled.

Tracked-On: #6320
Signed-off-by: Yang,Yu-chu <yu-chu.yang@intel.com>
This commit is contained in:
Yang,Yu-chu 2021-07-14 14:57:09 -07:00 committed by Xie, Nanlin
parent 2940b8a31e
commit 796f11a064
1 changed files with 48 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

52
misc/config_tools/acpi_gen/bin_gen.py
View File

@ -5,9 +5,14 @@
"""
import logging
import os, sys, subprocess, argparse, re, shutil
sys.path.append(os.path.join(os.path.dirname(os.path.abspath(__file__)), '..', 'board_inspector'))
import lxml.etree
from acpi_const import *
import acpiparser.tpm2
import lib.cdata
import common
def asl_to_aml(dest_vm_acpi_path, dest_vm_acpi_bin_path):
'''
@ -57,9 +62,38 @@ def asl_to_aml(dest_vm_acpi_path, dest_vm_acpi_bin_path):
print('compile ACPI ASL code to {} successfully'.format(dest_vm_acpi_bin_path))
return rmsg
def tpm2_acpi_gen(acpi_bin, board_etree, scenario_etree, allocation_etree):
tpm2_enabled = common.get_node("//vm[@id = '0']/mmio_resources/TPM2/text()", scenario_etree)
if tpm2_enabled is not None and tpm2_enabled == 'y':
tpm2_node = common.get_node("//device[@id = 'MSFT0101']", board_etree)
if tpm2_node is not None:
_data_len = 0x4c if common.get_node("//capability[@id = 'log_area']", board_etree) is not None else 0x40
_data = bytearray(_data_len)
ctype_data = acpiparser.tpm2.TPM2(_data)
ctype_data.header.signature = "TPM2".encode()
ctype_data.header.length = _data_len
ctype_data.header.revision = 0x3
ctype_data.header.oemid = "ACRN ".encode()
ctype_data.header.oemtableid = "ACRNTPM2".encode()
ctype_data.header.oemrevision = 0x1
ctype_data.header.creatorid = "INTL".encode()
ctype_data.header.creatorrevision = 0x20190703
ctype_data.address_of_control_area = 0xFED40040
ctype_data.start_method = int(common.get_node("//capability[@id = 'start_method']/value/text()", tpm2_node), 16)
start_method_parameters = tpm2_node.xpath("//parameter/text()")
for i in range(len(start_method_parameters)):
ctype_data.start_method_specific_parameters[i] = int(start_method_parameters[i], 16)
if common.get_node("//capability[@id = 'log_area']", board_etree) is not None:
ctype_data.log_area_minimum_length = int(common.get_node("//log_area_minimum_length/text()", allocation_etree), 16)
ctype_data.log_area_start_address = int(common.get_node("//log_area_start_address/text()", allocation_etree), 16)
ctype_data.header.checksum = (~(sum(lib.cdata.to_bytes(ctype_data))) + 1) & 0xFF
acpi_bin.seek(ACPI_TPM2_ADDR_OFFSET)
acpi_bin.write(lib.cdata.to_bytes(ctype_data))
else:
logging.warning("Passtrhough tpm2 is enabled in scenario but the device is not presented on board.")
logging.warning("Check there is tpm2 device on board and re-generate the xml using board inspector with --advanced option.")
def aml_to_bin(dest_vm_acpi_path, dest_vm_acpi_bin_path, acpi_bin_name):
def aml_to_bin(dest_vm_acpi_path, dest_vm_acpi_bin_path, acpi_bin_name, board_etree, scenario_etree, allocation_etree):
'''
create the binary of ACPI table.
:param dest_vm_acpi_bin_path: the path of the aml code of ACPI tables
@ -109,6 +143,10 @@ def aml_to_bin(dest_vm_acpi_path, dest_vm_acpi_bin_path, acpi_bin_name):
with open(os.path.join(dest_vm_acpi_bin_path, ACPI_TABLE_LIST[8][1]), 'rb') as asl:
acpi_bin.write(asl.read())
vm_id = acpi_bin_name.split('.')[0].split('ACPI_VM')[1]
if vm_id == '0':
tpm2_acpi_gen(acpi_bin, board_etree, scenario_etree, allocation_etree)
acpi_bin.seek(0xfffff)
acpi_bin.write(b'\0')
shutil.move(acpi_bin_file, os.path.join(dest_vm_acpi_bin_path, '..', acpi_bin_name))
@ -176,6 +214,12 @@ def main(args):
board_type = args.board
scenario_name = args.scenario
board_path = os.path.join(VM_CONFIGS_PATH, 'data', board_type, board_type + '.xml')
board_etree = lxml.etree.parse(board_path)
scenario_path = os.path.join(VM_CONFIGS_PATH, 'data', board_type, scenario_name + '.xml')
scenario_etree = lxml.etree.parse(scenario_path)
allocation_path = os.path.join(common.SOURCE_ROOT_DIR, 'build', 'hypervisor', 'configs' ,'allocation.xml')
allocation_etree = lxml.etree.parse(allocation_path)
if args.asl is None:
DEST_ACPI_PATH = os.path.join(VM_CONFIGS_PATH, 'scenarios', scenario_name)
else:
@ -200,7 +244,7 @@ def main(args):
os.makedirs(dest_vm_acpi_bin_path)
if asl_to_aml(dest_vm_acpi_path, dest_vm_acpi_bin_path):
return 1
aml_to_bin(dest_vm_acpi_path, dest_vm_acpi_bin_path, config+'.bin')
aml_to_bin(dest_vm_acpi_path, dest_vm_acpi_bin_path, config+'.bin', board_etree, scenario_etree, allocation_etree)
return 0