mirror of
https://github.com/projectacrn/acrn-hypervisor.git
synced 2025-05-16 04:09:37 +00:00
511fd7b469
Generate serial configuration file for service VM according to scenario file and vUART ports base address allocated by config tool. Currently, some non-standard serial ports are emulated in hypervisor and will be used to do communication between service VM and user VM, so need to generate serial configuration file to configure these serial ports for service VM. v1-->v2: Fix some type issues Refine script code format Tracked-On: #6652 Signed-off-by: Xiangyang Wu <xiangyang.wu@intel.com>
61 lines
2.3 KiB
Python
61 lines
2.3 KiB
Python
#!/usr/bin/env python3
|
|
#
|
|
# Copyright (C) 2021 Intel Corporation.
|
|
#
|
|
# SPDX-License-Identifier: BSD-3-Clause
|
|
#
|
|
import argparse
|
|
import lxml.etree
|
|
|
|
#vuart devices name is configured to start from /dev/ttyS8
|
|
START_VUART_DEV_NAME_NO = 8
|
|
VUART_DEV_NAME_NUM = 8
|
|
stadard_uart_port = {'0x3F8', '0x2F8', '0x3E8', '0x2E8'}
|
|
UART_IRQ_BAUD = " irq 0 uart 16550A baud_base 115200"
|
|
|
|
def find_non_standard_uart(vm):
|
|
uart_list = []
|
|
for vuart in vm.iter(tag = 'legacy_vuart'):
|
|
base = vuart.find('base').text
|
|
if base not in stadard_uart_port:
|
|
uart_list.append(vuart)
|
|
return uart_list
|
|
|
|
def main(args):
|
|
"""
|
|
Generate serial configuration file for service VM
|
|
:param args: command line args
|
|
"""
|
|
scenario_etree = lxml.etree.parse(args.scenario)
|
|
allocation_etree = lxml.etree.parse(args.allocation)
|
|
vuart_target_vmid = [0] * VUART_DEV_NAME_NUM
|
|
|
|
vm_list = scenario_etree.xpath("//vm[vm_type = 'SERVICE_VM']")
|
|
for vm in vm_list:
|
|
for legacy_vuart in vm.iter(tag = 'legacy_vuart'):
|
|
if legacy_vuart.find('target_vm_id') != None:
|
|
user_vm_id = legacy_vuart.find('target_vm_id').text
|
|
legacy_vuartid = int(legacy_vuart.attrib["id"])
|
|
vuart_target_vmid[legacy_vuartid] = user_vm_id
|
|
|
|
vm_list = allocation_etree.xpath("//vm[vm_type = 'SERVICE_VM']")
|
|
for vm in vm_list:
|
|
vuart_list = find_non_standard_uart(vm)
|
|
if len(vuart_list) != 0:
|
|
with open(args.out, "w+") as config_f:
|
|
for uart_start_num, vuart in enumerate(vuart_list, start=START_VUART_DEV_NAME_NO):
|
|
base = " port " + vuart.find('base').text
|
|
vuart_id = int(vuart.attrib["id"])
|
|
vm_id_note = "# User_VM_id: " + str(vuart_target_vmid[vuart_id]) + '\n'
|
|
config_f.write(vm_id_note)
|
|
conf = "/dev/ttyS" + str(uart_start_num) + base + UART_IRQ_BAUD + '\n'
|
|
config_f.write(conf)
|
|
|
|
if __name__ == '__main__':
|
|
parser = argparse.ArgumentParser()
|
|
parser.add_argument("--allocation", help="the XML file summarizing resource allocated by config tool")
|
|
parser.add_argument("--scenario", help="the XML file specifying the scenario to be set up")
|
|
parser.add_argument("--out", help="location of the output serial configuration file")
|
|
args = parser.parse_args()
|
|
main(args)
|