mirror of
https://github.com/kubernetes-sigs/node-feature-discovery.git
synced 2025-03-05 16:27:05 +00:00
44 lines
1.1 KiB
Go
44 lines
1.1 KiB
Go
|
/*
|
||
|
|
Copyright 2018 The Kubernetes Authors.
|
||
|
|
|
||
|
|
Licensed under the Apache License, Version 2.0 (the "License");
|
||
|
|
you may not use this file except in compliance with the License.
|
||
|
|
You may obtain a copy of the License at
|
||
|
|
|
||
|
|
http://www.apache.org/licenses/LICENSE-2.0
|
||
|
|
|
||
|
|
Unless required by applicable law or agreed to in writing, software
|
||
|
|
distributed under the License is distributed on an "AS IS" BASIS,
|
||
|
|
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||
|
|
See the License for the specific language governing permissions and
|
||
|
|
limitations under the License.
|
||
|
|
*/
|
||
|
|
|
||
|
|
package iommu
|
||
|
|
|
||
|
|
import (
|
||
|
|
"fmt"
|
||
|
|
"io/ioutil"
|
||
|
|
)
|
||
|
|
|
||
|
|
// Implement FeatureSource interface
|
||
|
|
type Source struct{}
|
||
|
|
|
||
|
|
func (s Source) Name() string { return "iommu" }
|
||
|
|
|
||
|
|
func (s Source) Discover() ([]string, error) {
|
||
|
|
features := []string{}
|
||
|
|
|
||
|
|
// Check if any iommu devices are available
|
||
|
|
devices, err := ioutil.ReadDir("/sys/class/iommu/")
|
||
|
|
if err != nil {
|
||
|
|
return nil, fmt.Errorf("Failed to check for IOMMU support: %v", err)
|
||
|
|
}
|
||
|
|
|
||
|
|
if len(devices) > 0 {
|
||
|
|
features = append(features, "enabled")
|
||
|
|
}
|
||
|
|
|
||
|
|
return features, nil
|
||
|
|
}
|