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https://github.com/projectacrn/acrn-hypervisor.git
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6d56816e79
The current code assume that there must be an HV_RAM_START element in the scenario and we will generate it if user have not set, the default value of HV_RAM_START is 0x00400000 which cause an overlap issue. This patch remove the requires of HV_RAM_START element, calculate HV_RAM_SIZE and find a region of e820 to run the ACRN which start address will be HV_RAM_START. It is still valid if the user set HV_RAM_START by XMLs. Tracked-On: #6690 Signed-off-by: Chenli Wei <chenli.wei@intel.com>
51 lines
1.9 KiB
Python
51 lines
1.9 KiB
Python
#!/usr/bin/env python3
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#
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# Copyright (C) 2022 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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vm_num = 0
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vm_list = scenario_etree.xpath("//vm")
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if vm_list is not None:
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vm_num = len(vm_list)
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hv_ram_size = common.HV_BASE_RAM_SIZE + common.VM_RAM_SIZE * vm_num
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ivshmem_list = scenario_etree.xpath("//IVSHMEM_SIZE/text()")
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total_shm_size = 0
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for ram_size in ivshmem_list:
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try:
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total_shm_size += int(ram_size) * 0x100000
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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 0x2000000 to
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# reduce memory conflict with GRUB/SOS Kernel.
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hv_start_offset = 0x2000000
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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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