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feat(x86)64: add host vs guest cpu feature test
Add test comparing host and guest default cpu features. Signed-off-by: Egor Lazarchuk <[email protected]>
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‎tests/integration_tests/functional/test_cpu_features.py‎

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@@ -14,6 +14,7 @@
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import time
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from difflib import unified_diff
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from pathlib import Path
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from packaging import version
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import pytest
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@@ -22,6 +23,7 @@
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from framework.defs import SUPPORTED_HOST_KERNELS
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from framework.properties import global_props
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from framework.utils_cpu_templates import SUPPORTED_CPU_TEMPLATES
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from framework.utils_cpuid import CPU_FEATURES_CMD, CpuModel
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PLATFORM = platform.machine()
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UNSUPPORTED_HOST_KERNEL = (
@@ -203,6 +205,275 @@ def test_brand_string(uvm_plain_any):
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assert False
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@pytest.mark.skipif(
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PLATFORM != "x86_64",
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reason="This is x86_64 specific test.",
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)
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def test_host_vs_guest_cpu_features_x86_64(uvm_nano):
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"""Check CPU features host vs guest"""
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vm = uvm_nano
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vm.add_net_iface()
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vm.start()
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host_feats = set(utils.check_output(CPU_FEATURES_CMD).stdout.strip().split(" "))
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guest_feats = set(vm.ssh.check_output(CPU_FEATURES_CMD).stdout.strip().split(" "))
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cpu_model = cpuid_utils.get_cpu_codename()
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match cpu_model:
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case CpuModel.AMD_MILAN:
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host_guest_diff_5_10 = {
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"amd_ppin",
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"aperfmperf",
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"bpext",
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"cat_l3",
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"cdp_l3",
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"cpb",
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"cqm",
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"cqm_llc",
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"cqm_mbm_local",
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"cqm_mbm_total",
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"cqm_occup_llc",
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"decodeassists",
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"extapic",
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"extd_apicid",
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"flushbyasid",
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"hw_pstate",
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"ibs",
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"irperf",
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"lbrv",
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"mba",
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"monitor",
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"mwaitx",
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"overflow_recov",
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"pausefilter",
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"perfctr_llc",
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"perfctr_nb",
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"pfthreshold",
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"rdpru",
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"rdt_a",
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"sev",
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"sev_es",
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"skinit",
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"smca",
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"sme",
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"succor",
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"svm_lock",
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"tce",
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"tsc_scale",
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"v_vmsave_vmload",
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"vgif",
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"vmcb_clean",
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"wdt",
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}
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host_guest_diff_6_1 = (
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host_guest_diff_5_10
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- {
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"lbrv",
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"pausefilter",
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"pfthreshold",
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"sme",
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"tsc_scale",
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"v_vmsave_vmload",
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"vgif",
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"vmcb_clean",
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}
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+ {"brs", "rapl", "v_spec_ctrl"}
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)
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if version.parse(utils.get_kernel_version()) < version.parse("6.1"):
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assert host_feats - guest_feats == host_guest_diff_5_10
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else:
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assert host_feats - guest_feats == host_guest_diff_6_1
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assert guest_feats - host_feats == {
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"hypervisor",
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"tsc_adjust",
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"tsc_deadline_timer",
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"tsc_known_freq",
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}
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case CpuModel.INTEL_SKYLAKE:
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assert host_feats - guest_feats == {
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"acpi",
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"aperfmperf",
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"arch_perfmon",
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"art",
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"bts",
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"cat_l3",
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"cdp_l3",
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"cqm",
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"cqm_llc",
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"cqm_mbm_local",
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"cqm_mbm_total",
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"cqm_occup_llc",
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"dca",
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"ds_cpl",
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"dtes64",
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"dtherm",
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"dts",
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"epb",
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"ept",
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"ept_ad",
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"est",
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"flexpriority",
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"flush_l1d",
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"hwp",
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"hwp_act_window",
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"hwp_epp",
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"hwp_pkg_req",
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"ida",
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"intel_ppin",
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"intel_pt",
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"mba",
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"monitor",
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"pbe",
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"pdcm",
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"pebs",
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"pln",
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"pts",
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"rdt_a",
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"sdbg",
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"smx",
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"tm",
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"tm2",
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"tpr_shadow",
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"vmx",
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"vnmi",
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"vpid",
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"xtpr",
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}
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assert guest_feats - host_feats == {
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"hypervisor",
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"tsc_known_freq",
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"umip",
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}
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case CpuModel.INTEL_CASCADELAKE:
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assert host_feats - guest_feats == {
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"acpi",
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"aperfmperf",
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"arch_perfmon",
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"art",
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"bts",
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"cat_l3",
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"cdp_l3",
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"cqm",
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"cqm_llc",
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"cqm_mbm_local",
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"cqm_mbm_total",
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"cqm_occup_llc",
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"dca",
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"ds_cpl",
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"dtes64",
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"dtherm",
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"dts",
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"epb",
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"ept",
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"ept_ad",
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"est",
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"flexpriority",
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"flush_l1d",
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"hwp",
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"hwp_act_window",
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"hwp_epp",
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"hwp_pkg_req",
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"ida",
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"intel_ppin",
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"intel_pt",
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"mba",
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"monitor",
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"pbe",
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"pdcm",
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"pebs",
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"pln",
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"pts",
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"rdt_a",
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"sdbg",
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"smx",
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"tm",
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"tm2",
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"tpr_shadow",
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"vmx",
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"vnmi",
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"vpid",
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"xtpr",
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}
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assert guest_feats - host_feats == {
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"hypervisor",
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"tsc_known_freq",
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"umip",
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}
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case CpuModel.INTEL_ICELAKE:
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host_guest_diff_5_10 = {
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"DTES64",
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"HWP_ACT_WINDOW",
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"PDCM",
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"acpi",
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"aperfmperf",
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"arch_perfmon",
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"art",
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"bts",
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"cat_l3",
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"cqm",
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"cqm_llc",
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"cqm_mbm_local",
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"cqm_mbm_total",
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"cqm_occup_llc",
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"dca",
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"ds_cpl",
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"dtherm",
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"dts",
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"epb",
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"ept",
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"ept_ad",
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"est",
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"flexpriority",
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"flush_l1d",
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"hwp",
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"hwp_epp",
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"hwp_pkg_req",
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"ida",
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"intel_ppin",
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"intel_pt",
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"mba",
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"monitor",
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"pbe",
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"pconfig",
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"pebs",
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"pln",
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"pts",
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"rdt_a",
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"sdbg",
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"smx",
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"split_lock_detect",
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"tm",
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"tm2",
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"tme",
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"tpr_shadow",
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"vmx",
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"vnmi",
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"vpid",
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"xtpr",
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}
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host_guest_diff_6_1 = host_guest_diff_5_10 - {
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"bts",
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"dtes64",
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"dts",
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"pebs",
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}
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if version.parse(utils.get_kernel_version()) < version.parse("6.1"):
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assert host_feats - guest_feats == host_guest_diff_5_10
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else:
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assert host_feats - guest_feats == host_guest_diff_6_1
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assert guest_feats - host_feats == {
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"hypervisor",
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"tsc_known_freq",
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}
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case _:
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assert False, f"Cpu model {cpu_model} is not supported"
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# From the `Intel® 64 Architecture x2APIC Specification`
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# (https://courses.cs.washington.edu/courses/cse451/24wi/documentation/x2apic.pdf):
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# > The X2APIC MSRs cannot to be loaded and stored on VMX transitions. A VMX transition fails

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