193 lines
6.9 KiB
Python
193 lines
6.9 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
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import re
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from collections import defaultdict
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from collections import namedtuple
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from acrn_config_utilities import get_node
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policy_owner = namedtuple("policy_owner", ["vm_name", "vcpu", "cache_type"])
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class Policy:
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def __init__(self, cache_id, clos_mask):
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self.cache_id = cache_id
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self.clos_mask = clos_mask
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def get_cache_id(self):
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return self.cache_id
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def get_clos_mask(self):
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return self.clos_mask
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def match_policy(self, src):
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return (self.clos_mask == None) or (src.clos_mask == None) or (self.clos_mask == src.clos_mask)
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class L3Policy(Policy):
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def __init__(self, policy):
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self.cache_id = policy.get_cache_id()
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self.clos_mask = policy.get_clos_mask()
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def merge_policy(self, src):
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return self.match_policy(src)
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class L2Policy:
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cache2_id_list = []
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def __init__(self, policy):
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self.policy_list = []
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for index,cache2_id in enumerate(self.cache2_id_list):
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if cache2_id == policy.cache_id:
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self.policy_list.append(policy)
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else:
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self.policy_list.append(Policy(None, None))
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def get_cache_id(self, index):
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return self.policy_list[index].get_cache_id()
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def get_clos_mask(self, index):
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return self.policy_list[index].get_clos_mask()
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def match_policy(self, src):
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for index in range(0, len(self.policy_list)):
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if not self.policy_list[index].match_policy(src.policy_list[index]):
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return False
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return True
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def merge_policy(self, src):
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if self.match_policy(src):
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for index in range(0, len(self.policy_list)):
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if self.policy_list[index].clos_mask is None:
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self.policy_list[index].clos_mask = src.policy_list[index].clos_mask
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return True
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return False
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class RdtPolicy:
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def __init__(self, policy_list, policy_owner):
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cache2_id = None
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cache3_id = None
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l2_mask = None
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l3_mask = None
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for policy in policy_list:
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cache_level = get_node("../CACHE_LEVEL/text()", policy)
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cache_id = get_node("../CACHE_ID/text()", policy)
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clos_mask = get_node("./CLOS_MASK/text()", policy)
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if cache_level == "2":
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l2_mask = clos_mask
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cache2_id = cache_id
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else:
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l3_mask = clos_mask
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cache3_id = cache_id
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self.l2policy = L2Policy(Policy(cache2_id, l2_mask))
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self.l3policy = L3Policy(Policy(cache3_id, l3_mask))
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# a list stored the vCPU or VM info
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self.policy_owner_list = [policy_owner]
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def match_policy(self, src):
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return self.l2policy.match_policy(src.l2policy) and self.l3policy.match_policy(src.l3policy)
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#check whether the src could be merged, if yes, add the src owner to policy_owner_list list and return True
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def merge_policy(self, src):
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if self.match_policy(src):
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self.l2policy.merge_policy(src.l2policy)
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self.l3policy.merge_policy(src.l3policy)
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self.policy_owner_list += src.policy_owner_list
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return True
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return False
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#check whether a VM/vCPU could use this policy
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def find_policy_owner(self, policy_owner):
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return policy_owner in self.policy_owner_list
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class vCatPolicy(RdtPolicy):
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def merge_policy(self, src):
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return False
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class CdpPolicy():
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def __init__(self,data_list, code_list, owner):
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self.data_policy = RdtPolicy(data_list, policy_owner(owner.vm_name, owner.vcpu, "Data"))
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self.code_policy = RdtPolicy(code_list, policy_owner(owner.vm_name, owner.vcpu, "Code"))
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def merge_policy(self, src):
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if self.code_policy.match_policy(src.code_policy) and self.data_policy.match_policy(src.data_policy):
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self.code_policy.merge_policy(src.code_policy)
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self.data_policy.merge_policy(src.data_policy)
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return True
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return False
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def merge_policy_list(policy_list):
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result_list = []
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for index,p in enumerate(policy_list):
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merged = False
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for result in result_list:
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if result.merge_policy(p):
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merged = True
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break;
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if not merged:
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result_list.append(p)
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return result_list
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def gen_policy_owner_list(scenario_etree):
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policy_owner_list = []
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vm_list = scenario_etree.xpath("//POLICY/VM")
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for vm in vm_list:
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vm_name = get_node("./text()", vm)
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vcpu = get_node("../VCPU/text()", vm)
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cache_type = get_node("../TYPE/text()", vm)
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policy_owner_list.append(policy_owner(vm_name, int(vcpu), cache_type))
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return policy_owner_list
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def vm_vcat_enable(scenario_etree, vm_name):
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vcat_enable = get_node(f"//VCAT_ENABLED/text()", scenario_etree)
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virtual_cat_support = get_node(f"//vm[name = '{vm_name}']/virtual_cat_support/text()", scenario_etree)
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return (vcat_enable == "y") and (virtual_cat_support == "y")
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def cdp_enable(scenario_etree):
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cdp_enable = get_node(f"//CDP_ENABLED/text()", scenario_etree)
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return cdp_enable == "y"
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def convert_cdp_to_normal(cdp_policy_list):
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policy_list = []
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for cdp_policy in cdp_policy_list:
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policy_list.append(cdp_policy.data_policy)
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policy_list.append(cdp_policy.code_policy)
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return policy_list
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def get_policy_list(scenario_etree):
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init_cache2_id_list(scenario_etree)
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policy_owner_list = gen_policy_owner_list(scenario_etree)
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result_list = []
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for policy_owner in policy_owner_list:
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dict_tmp = {}
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policy_list = scenario_etree.xpath(f"//POLICY[VM = '{policy_owner.vm_name}' and VCPU = '{policy_owner.vcpu}']")
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if cdp_enable(scenario_etree):
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data_list = scenario_etree.xpath(f"//POLICY[VM = '{policy_owner.vm_name}' and VCPU = '{policy_owner.vcpu}' and TYPE = 'Data']")
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code_list = scenario_etree.xpath(f"//POLICY[VM = '{policy_owner.vm_name}' and VCPU = '{policy_owner.vcpu}' and TYPE = 'Code']")
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if policy_owner.cache_type == "Code":
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continue
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elif policy_owner.cache_type == "Data":
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result_list.append(CdpPolicy(data_list, code_list, policy_owner))
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elif vm_vcat_enable(scenario_etree, policy_owner.vm_name):
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result_list.append(vCatPolicy(policy_list, policy_owner))
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else:
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result_list.append(RdtPolicy(policy_list, policy_owner))
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result_list = merge_policy_list(result_list)
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if cdp_enable(scenario_etree):
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result_list = convert_cdp_to_normal(result_list)
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return result_list
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def init_cache2_id_list(scenario_etree):
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cache2_id_list = scenario_etree.xpath("//CACHE_ALLOCATION[CACHE_LEVEL = 2]/CACHE_ID/text()")
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cache2_id_list.sort()
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L2Policy.cache2_id_list = cache2_id_list
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