Make sure the number of columns in the PCI resource file is greater
or equal to 2, since the first two columns are used to calculate
the PCI bar space.
Add unit test for `isLargeBarSpace()`.
fixes#2542
Signed-off-by: Julio Montes <julio.montes@intel.com>
Reserved number of Linux device number 241 and 242
are used to identify vhost-user-blk and vhost-user-scsi
devices.
for example, after command:
mknod <Vhost-User-Dir>/block/devices/vhost-dev0 b 241 0
this node will be recognized as vhost-user-blk device.
Fixes: #2380
Signed-off-by: Liu Xiaodong <xiaodong.liu@intel.com>
Fixes#50
This is done for decoupling device management part from other parts.
It seperate device.go to several dirs and files:
```
virtcontainers/device
├── api
│ └── interface.go
├── config
│ └── config.go
├── drivers
│ ├── block.go
│ ├── generic.go
│ ├── utils.go
│ ├── vfio.go
│ ├── vhost_user_blk.go
│ ├── vhost_user.go
│ ├── vhost_user_net.go
│ └── vhost_user_scsi.go
└── manager
├── manager.go
└── utils.go
```
* `api` contains interface definition of device management, so upper level caller
should import and use the interface, and lower level should implement the interface.
it's bridge to device drivers and callers.
* `config` contains structed exported data.
* `drivers` contains specific device drivers including block, vfio and vhost user
devices.
* `manager` exposes an external management package with a `DeviceManager`.
Signed-off-by: Zhang Wei <zhangwei555@huawei.com>
