36 lines
1.2 KiB
Go
36 lines
1.2 KiB
Go
// Copyright 2018 The gVisor Authors.
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//
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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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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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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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package proc
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import (
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"gvisor.dev/gvisor/pkg/sentry/context"
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"gvisor.dev/gvisor/pkg/sentry/fs"
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"gvisor.dev/gvisor/pkg/sentry/kernel"
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)
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func newCPUInfo(ctx context.Context, msrc *fs.MountSource) *fs.Inode {
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k := kernel.KernelFromContext(ctx)
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features := k.FeatureSet()
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if features == nil {
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// Kernel is always initialized with a FeatureSet.
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panic("cpuinfo read with nil FeatureSet")
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}
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contents := make([]byte, 0, 1024)
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for i, max := uint(0), k.ApplicationCores(); i < max; i++ {
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contents = append(contents, []byte(features.CPUInfo(i))...)
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}
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return newStaticProcInode(ctx, msrc, contents)
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}
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