41 lines
1.7 KiB
Python
41 lines
1.7 KiB
Python
#!/usr/bin/env python3
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#
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# Copyright (C) 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 sys, os
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sys.path.append(os.path.join(os.path.dirname(os.path.abspath(__file__)), '..', 'library'))
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import acrn_config_utilities, board_cfg_lib, scenario_cfg_lib
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from acrn_config_utilities import get_node
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HV_RAM_SIZE_MAX = 0x40000000
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MEM_ALIGN = 2 * acrn_config_utilities.SIZE_M
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def fn(board_etree, scenario_etree, allocation_etree):
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# this dictonary mapped with 'address start':'mem range'
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ram_range = {}
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max_vm_num = int(get_node(f"//hv/CAPACITIES/MAX_VM_NUM/text()", scenario_etree))
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max_trusty_vm = len(scenario_etree.xpath(f"//vm[./secure_world_support/text() = 'y']"))
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hv_ram_size = acrn_config_utilities.HV_BASE_RAM_SIZE + acrn_config_utilities.VM_RAM_SIZE * max_vm_num + max_trusty_vm * acrn_config_utilities.TRUSTY_RAM_SIZE
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assert(hv_ram_size <= HV_RAM_SIZE_MAX)
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# We recommend to put hv ram start address high than 0x400000 to
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# reduce memory conflict with hv log.
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hv_start_offset = 0x400000
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for start_addr in list(board_cfg_lib.USED_RAM_RANGE):
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if hv_start_offset <= start_addr < 0x80000000:
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del board_cfg_lib.USED_RAM_RANGE[start_addr]
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ram_range = board_cfg_lib.get_ram_range()
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avl_start_addr = board_cfg_lib.find_avl_memory(ram_range, str(hv_ram_size), hv_start_offset)
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hv_start_addr = int(avl_start_addr, 16)
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hv_start_addr = acrn_config_utilities.round_up(hv_start_addr, MEM_ALIGN)
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board_cfg_lib.USED_RAM_RANGE[hv_start_addr] = hv_ram_size
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acrn_config_utilities.append_node("/acrn-config/hv/MEMORY/HV_RAM_START", hex(hv_start_addr), allocation_etree)
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acrn_config_utilities.append_node("/acrn-config/hv/MEMORY/HV_RAM_SIZE", hex(hv_ram_size), allocation_etree)
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