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https://github.com/projectacrn/acrn-hypervisor.git
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3ed36ff02a
Refine the "append_node" which can add new node with an attribute and return the appended node. The method "get_node" finds the xpath value and return it if there is an unique node exists, otherwise it returns None. It is used to get an xpath element node or can determine the xpath existence. The "get_text" is replaced with "get_node". The only get_text in hv_ram.py is modified accordingly. Tracked-On: #5980 Signed-off-by: Yang,Yu-chu <yu-chu.yang@intel.com> Reviewed-by: Junjie Mao <junjie.mao@intel.com>
63 lines
2.7 KiB
Python
63 lines
2.7 KiB
Python
#!/usr/bin/env python3
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#
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# Copyright (C) 2021 Intel Corporation. All rights reserved.
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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 common, board_cfg_lib, scenario_cfg_lib
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HV_RAM_SIZE_MAX = 0x40000000
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MEM_ALIGN = 2 * common.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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post_launched_vm_num = 0
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for id in common.VM_TYPES:
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if common.VM_TYPES[id] in scenario_cfg_lib.VM_DB and \
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scenario_cfg_lib.VM_DB[common.VM_TYPES[id]]["load_type"] == "POST_LAUNCHED_VM":
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post_launched_vm_num += 1
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hv_ram_size = common.HV_BASE_RAM_SIZE + common.POST_LAUNCHED_VM_RAM_SIZE * post_launched_vm_num
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ivshmem_enabled = common.get_node("//IVSHMEM_ENABLED/text()", scenario_etree)
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total_shm_size = 0
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if ivshmem_enabled == 'y':
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raw_shmem_regions = scenario_etree.xpath("//IVSHMEM_REGION/text()")
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for raw_shm in raw_shmem_regions:
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if raw_shm.strip() == '':
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continue
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raw_shm_splited = raw_shm.split(',')
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if len(raw_shm_splited) == 3 and raw_shm_splited[0].strip() != '' \
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and raw_shm_splited[1].strip() != '' and len(raw_shm_splited[2].strip().split(':')) >= 1:
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try:
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size = raw_shm_splited[1].strip()
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int_size = int(size) * 0x100000
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total_shm_size += int_size
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except Exception as e:
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print(e)
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hv_ram_size += 2 * max(total_shm_size, 0x200000)
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assert(hv_ram_size <= HV_RAM_SIZE_MAX)
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# reseve 16M memory for hv sbuf, ramoops, etc.
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reserved_ram = 0x1000000
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# We recommend to put hv ram start address high than 0x10000000 to
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# reduce memory conflict with GRUB/SOS Kernel.
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hv_start_offset = 0x10000000
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total_size = reserved_ram + hv_ram_size
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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(total_size), hv_start_offset)
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hv_start_addr = int(avl_start_addr, 16) + int(hex(reserved_ram), 16)
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hv_start_addr = common.round_up(hv_start_addr, MEM_ALIGN)
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board_cfg_lib.USED_RAM_RANGE[hv_start_addr] = total_size
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common.append_node("/acrn-config/hv/MEMORY/HV_RAM_START", hex(hv_start_addr), allocation_etree)
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common.append_node("/acrn-config/hv/MEMORY/HV_RAM_SIZE", hex(hv_ram_size), allocation_etree)
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