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c8cf7ed3bc
If we have a VFIO device and cold-plug is enabled we mark each device as ColdPlug=true and let the VFIO module do the attaching. Signed-off-by: Zvonko Kaiser <zkaiser@nvidia.com>
48 lines
1.1 KiB
Go
48 lines
1.1 KiB
Go
// Copyright (c) 2017-2018 Intel Corporation
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// Copyright (c) 2018 Huawei Corporation
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//
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// SPDX-License-Identifier: Apache-2.0
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//
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package manager
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import (
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"path/filepath"
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"strings"
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"github.com/kata-containers/kata-containers/src/runtime/pkg/device/config"
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)
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const (
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vfioPath = "/dev/vfio/"
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)
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// IsVFIO checks if the device provided is a vfio group.
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func IsVFIO(hostPath string) bool {
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// Ignore /dev/vfio/vfio character device
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if strings.HasPrefix(hostPath, filepath.Join(vfioPath, "vfio")) {
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return false
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}
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if strings.HasPrefix(hostPath, vfioPath) && len(hostPath) > len(vfioPath) {
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return true
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}
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return false
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}
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// isBlock checks if the device is a block device.
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func isBlock(devInfo config.DeviceInfo) bool {
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return devInfo.DevType == "b"
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}
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// isVhostUserBlk checks if the device is a VhostUserBlk device.
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func isVhostUserBlk(devInfo config.DeviceInfo) bool {
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return devInfo.DevType == "b" && devInfo.Major == config.VhostUserBlkMajor
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}
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// isVhostUserSCSI checks if the device is a VhostUserSCSI device.
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func isVhostUserSCSI(devInfo config.DeviceInfo) bool {
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return devInfo.DevType == "b" && devInfo.Major == config.VhostUserSCSIMajor
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}
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