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https://github.com/projectacrn/acrn-hypervisor.git
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4fe6cae877
According to DX recommendations, this patch adds a Boolean item to each vCPU which allows users to specify the vCPUs intended for real-time-critical tasks. This information will be used to organize other widgets (CAT-related ones for now) in the configurator to tell apart real-time ones from the others for better clarity. All vCPUs are by default not real-time-critical, except those in the RT VMs which are. Tracked-On: #6690 Signed-off-by: Junjie Mao <junjie.mao@intel.com>
37 lines
1.6 KiB
Python
37 lines
1.6 KiB
Python
#!/usr/bin/env python3
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#
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# Copyright (C) 2021 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 common, board_cfg_lib
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def sos_cpu_affinity(etree):
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if common.get_node("//vm[load_order = 'SERVICE_VM']", etree) is None:
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return None
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if common.get_node("//vm[load_order = 'SERVICE_VM' and count(cpu_affinity//pcpu_id)]", etree) is not None:
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return None
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sos_extend_all_cpus = board_cfg_lib.get_processor_info()
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pre_all_cpus = etree.xpath("//vm[load_order = 'PRE_LAUNCHED_VM']/cpu_affinity//pcpu_id/text()")
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cpus_for_sos = list(set(sos_extend_all_cpus) - set(pre_all_cpus))
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return sorted(cpus_for_sos)
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def fn(board_etree, scenario_etree, allocation_etree):
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cpus_for_sos = sos_cpu_affinity(scenario_etree)
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if cpus_for_sos:
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if common.get_node("//vm[load_order = 'SERVICE_VM']", scenario_etree) is not None:
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vm_id = common.get_node("//vm[load_order = 'SERVICE_VM']/@id", scenario_etree)
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allocation_sos_vm_node = common.get_node(f"/acrn-config/vm[@id='{vm_id}']", allocation_etree)
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if allocation_sos_vm_node is None:
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allocation_sos_vm_node = common.append_node("/acrn-config/vm", None, allocation_etree, id = vm_id)
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if common.get_node("./load_order", allocation_sos_vm_node) is None:
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common.append_node("./load_order", "SERVICE_VM", allocation_sos_vm_node)
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for pcpu_id in cpus_for_sos:
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common.append_node("./cpu_affinity/pcpu_id", str(pcpu_id), allocation_sos_vm_node)
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