mirror of
https://github.com/kubernetes-sigs/node-feature-discovery.git
synced 2024-12-14 11:57:51 +00:00
a00cdc2b61
Refactor the code, moving the hostpath helper functionality to new "pkg/utils/hostpath" package. This breaks odd-ish dependency "pkg/utils" -> "source".
49 lines
1.3 KiB
Go
49 lines
1.3 KiB
Go
//go:build s390x
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// +build s390x
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/*
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Copyright 2022 The Kubernetes Authors.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package cpu
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import (
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"os"
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"sigs.k8s.io/node-feature-discovery/pkg/utils/hostpath"
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)
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func discoverSecurity() map[string]string {
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elems := make(map[string]string)
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if seEnabled() {
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elems["se.enabled"] = "true"
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}
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return elems
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}
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func seEnabled() bool {
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// This file is available in kernels >=5.12 + backports. Skip specifically
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// checking facilities and kernel command lines and just assume Secure
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// Execution to be unavailable or disabled if the file is not present.
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protVirtHost := hostpath.SysfsDir.Path("firmware/uv/prot_virt_host")
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if content, err := os.ReadFile(protVirtHost); err == nil {
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if string(content) == "1\n" {
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return true
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}
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}
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return false
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}
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