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32bc596129
Add MAX_PCI_BUS_NUM in UI for user. If user defined MAX_PCI_BUS_NUM is greater than the value calculated by board.xml, use user defined MAX_PCI_BUS_NUM. Tracked-On: #8018 Signed-off-by: Yuanyuan Zhao <yuanyuan.zhao@linux.intel.com> Reviewed-by: Junjie Mao <junjie.mao@intel.com>
36 lines
1.5 KiB
Python
36 lines
1.5 KiB
Python
#!/usr/bin/env python3
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#
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# Copyright (C) 2021-2022 Intel Corporation.
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#
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# SPDX-License-Identifier: BSD-3-Clause
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#
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import logging
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import common
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def powerof2_roundup(value):
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return 0 if value == 0 else (1 << (value - 1).bit_length())
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# Make sure all PT IRQs work w/ interrupt remapping or post interrupt
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def create_max_ir_entries(scenario_etree, allocation_etree):
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pt_irq_entries = common.get_node(f"//MAX_PT_IRQ_ENTRIES/text()", scenario_etree)
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if (pt_irq_entries is not None) and (int(pt_irq_entries) > 256):
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ir_entries = powerof2_roundup(int(pt_irq_entries))
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else:
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ir_entries = 256
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common.append_node("/acrn-config/hv/MAX_IR_ENTRIES", ir_entries, allocation_etree)
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def fn(board_etree, scenario_etree, allocation_etree):
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pci_bus_nums = board_etree.xpath("//bus[@type='pci']/@address")
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calc_pci_bus_nums = (max(map(lambda x: int(x, 16), pci_bus_nums)) + 1)
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user_def_pci_bus_nums = common.get_node(f"//MAX_PCI_BUS_NUM/text()", scenario_etree)
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if user_def_pci_bus_nums == '0':
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common.append_node("/acrn-config/platform/MAX_PCI_BUS_NUM", hex(calc_pci_bus_nums), allocation_etree)
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else:
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if calc_pci_bus_nums > int(user_def_pci_bus_nums):
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logging.error(f"MAX_PCI_BUS_NUM should be greater than {calc_pci_bus_nums}")
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sys.exit(1)
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else:
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common.append_node("/acrn-config/platform/MAX_PCI_BUS_NUM", hex(int(user_def_pci_bus_nums)), allocation_etree)
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create_max_ir_entries(scenario_etree, allocation_etree)
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