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https://github.com/projectacrn/acrn-hypervisor.git
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3c607107a8
Set GUEST_FLAG_VHWP guest flag for VMs who own pCPUs. Windows does not manage CPU frequency in virtualized environment, so this flag is not set for waag. Platforms without HWP capability should not have this flag either. Tracked-On: #8414 Signed-off-by: Wu Zhou <wu.zhou@intel.com> Reviewed-by: Junjie Mao <junjie.mao@intel.com>
43 lines
2.3 KiB
Python
43 lines
2.3 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, re
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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, lib.error, lib.lib
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from collections import namedtuple
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from acrn_config_utilities import get_node
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class GuestFlagPolicy(namedtuple("GuestFlagPolycy", ["condition", "guest_flag"])):
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pass
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policies = [
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GuestFlagPolicy(".//lapic_passthrough = 'y'", "GUEST_FLAG_LAPIC_PASSTHROUGH"),
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GuestFlagPolicy(".//io_completion_polling = 'y'", "GUEST_FLAG_IO_COMPLETION_POLLING"),
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GuestFlagPolicy(".//virtual_cat_support = 'y'", "GUEST_FLAG_VCAT_ENABLED"),
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GuestFlagPolicy(".//secure_world_support = 'y'", "GUEST_FLAG_SECURE_WORLD_ENABLED"),
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GuestFlagPolicy(".//hide_mtrr_support = 'y'", "GUEST_FLAG_HIDE_MTRR"),
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GuestFlagPolicy(".//nested_virtualization_support = 'y'", "GUEST_FLAG_NVMX_ENABLED"),
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GuestFlagPolicy(".//security_vm = 'y'", "GUEST_FLAG_SECURITY_VM"),
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GuestFlagPolicy(".//vm_type = 'RTVM'", "GUEST_FLAG_RT"),
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GuestFlagPolicy(".//vm_type = 'RTVM' and .//load_order = 'PRE_LAUNCHED_VM' and //hv/BUILD_TYPE= 'debug'", "GUEST_FLAG_PMU_PASSTHROUGH"),
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GuestFlagPolicy(".//vm_type = 'TEE_VM'", "GUEST_FLAG_TEE"),
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GuestFlagPolicy(".//vm_type = 'REE_VM'", "GUEST_FLAG_REE"),
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]
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def fn(board_etree, scenario_etree, allocation_etree):
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for vm_node in scenario_etree.xpath("//vm"):
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vm_id = vm_node.get('id')
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allocation_vm_node = get_node(f"/acrn-config/vm[@id = '{vm_id}']", allocation_etree)
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if allocation_vm_node is None:
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allocation_vm_node = acrn_config_utilities.append_node("/acrn-config/vm", None, allocation_etree, id = vm_id)
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for policy in policies:
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if vm_node.xpath(policy.condition):
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acrn_config_utilities.append_node("./guest_flags/guest_flag", str(policy.guest_flag), allocation_vm_node)
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acrn_config_utilities.append_node("./guest_flags/guest_flag",'GUEST_FLAG_STATIC_VM', allocation_vm_node)
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if board_etree.xpath("//capability[@id = 'hwp_supported']") and get_node(".//own_pcpu/text()", vm_node) == "y" and get_node(".//os_type/text()", vm_node) != "Windows OS":
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acrn_config_utilities.append_node("./guest_flags/guest_flag", 'GUEST_FLAG_VHWP', allocation_vm_node)
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