When using experimental feature "newstore", we save and load devices
information from `persist.json` instead of `devices.json`, in such case,
file `devices.json` isn't needed anymore, so remove it.
Signed-off-by: Wei Zhang <zhangwei555@huawei.com>
Several cache modes are supported by virtio-fs. They affect the
performance and consistency characteristics of the file system.
For the time being cache="none" is recommended, but the other modes can
be experimented with.
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Add VirtioFSCacheSize aka virtio_fs_cache_size option
to set the size (in MiB) of the DAX cache.
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Add a config option to select between virtio-9p and virtiofs. This
option currently has no effect and will be used in a later patch.
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
gometalinter is deprecated and will be archived April '19. The
suggestion is to switch to golangci-lint which is apparently 5x faster
than gometalinter.
Partially Fixes: #1377
Signed-off-by: Ganesh Maharaj Mahalingam <ganesh.mahalingam@intel.com>
Commit affd6e3216 ("devices: add reference
count for devices.") introduced an attach count for devices. The
vhost-user-blk device increments the counter instead of decrementing it
when detaching.
Fixes: #1259
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Set block_device_driver to "nvdimm" will make the hypervisor use
the block device as NVDIMM disk.
Fixes: #1032
Signed-off-by: Hui Zhu <teawater@hyper.sh>
Start adding support for virtio-mmio devices starting with block.
The devices show within the vm as vda, vdb,... based on order of
insertion and such within the VM resemble virtio-blk devices.
They need to be explicitly differentiated to ensure that the
agent logic within the VM can discover and mount them appropropriately.
The agent uses PCI location to discover them for virtio-blk.
For virtio-mmio we need to use the predicted device name for now.
Note: Kata used a disk for the VM rootfs in the case of Firecracker.
(Instead of initrd or virtual-nvdimm). The Kata code today does not
handle this case properly.
For now as Firecracker is the only Hypervisor in Kata that
uses virtio-mmio directly offset the drive index to comprehend
this.
Longer term we should track if the rootfs is setup as a block
device explicitly.
Fixes: #1046
Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com>
Signed-off-by: Manohar Castelino <manohar.r.castelino@intel.com>
Since struct VFIODevice needed to be stored into disk by storeSandboxDevices() function,
however struct VFIODevice has a field named "vfioDevs", which is named begin with lower-case,
so it can't be written into file by json.Marshal.And this bug will will cause hotplug vfio
device can not been removed correctly while container exits.
Fixes: #924
Signed-off-by: flyflypeng <jiangpengfei9@huawei.com>
Enable GPU device support in kata runtime, including GVT-g and GVT-d.
GVT-g: graphic virtualization technology with mediated pass through
GVT-d: graphic virtualization technology with direct pass through
BDF of device eg "0000:00:1c.0" is used to distinguish GPU device in GVT-d,
while sysfsdev of device eg "f79944e4-5a3d-11e8-99ce-479cbab002e4" is used
in GVT-g.
Fixes#542
Signed-off-by: Zhao Xinda <xinda.zhao@intel.com>
Kata Containers does not have provide a good entropy level,
make use of a paravirtual rng device to solve this problem.
Fixes: #445
Signed-off-by: Jose Carlos Venegas Munoz <jose.carlos.venegas.munoz@intel.com>
Fixes#635
`ContainerPath` isn't meaningful in sandbox's `devices.json`, because
device is sandbox level which can be referenced by many containers, and
`ContainerPath` is per container which means nothing to a sandbox level
resource.
Signed-off-by: Wei Zhang <zhangwei555@huawei.com>
Fixes#635
Remove `Hotplugged bool` field from device and add two new fields
instead:
* `RefCount`: how many references to this device. One device can be
referenced(`NewDevice()`) many times by same/different container(s),
two devices are regarded identical if they have same hostPath
* `AttachCount`: how many times this device has been attached. A device
can only be hotplugged once to the qemu, every new Attach command will
add the AttachCount, and real `Detach` will be done only when
`AttachCount == 0`
Signed-off-by: Wei Zhang <zhangwei555@huawei.com>
Fixes#50 .
Add new interface sandbox.AddDevice, then for Frakti use case, a device
can be attached to sandbox before container is created.
Signed-off-by: Wei Zhang <zhangwei555@huawei.com>
The interface "VhostUserDevice" has duplicate functions and fields with
Device, so we can merge them into one interface and manage them with one
group of interfaces.
Signed-off-by: Wei Zhang <zhangwei555@huawei.com>
Fixes#50
Previously the devices are created with device manager and laterly
attached to hypervisor with "device.Attach()", this could work, but
there's no way to remember the reference count for every device, which
means if we plug one device to hypervisor twice, it's truly inserted
twice, but actually we only need to insert once but use it in many
places.
Use device manager as a consolidated entrypoint of device management can
give us a way to handle many "references" to single device, because it
can save all devices and remember it's use count.
Signed-off-by: Wei Zhang <zhangwei555@huawei.com>
Now that the `SetLogger()` functions accept a `logrus.Entry`, they can
access the fields that have already been set for the logger and
re-apply them if `SetLogger()` is called multiple times.
This fixes a bug whereby the logger functions -- which are necessarily
called multiple times [1] -- previously ended up applying any new fields
the specified logger contained, but erroneously removing any additional
fields added since `SetLogger()` was last called.
Partially fixes#519.
--
[1] - https://github.com/kata-containers/runtime/pull/468
Signed-off-by: James O. D. Hunt <james.o.hunt@intel.com>
Rather than accepting a `logrus.FieldLogger` interface type, change all
the `SetLogger()` functions to accept a `logrus.Entry`.
Signed-off-by: James O. D. Hunt <james.o.hunt@intel.com>
This PR got merged while it had some issues with some shim processes
being left behind after k8s testing. And because those issues were
real issues introduced by this PR (not some random failures), now
the master branch is broken and new pull requests cannot get the
CI passing. That's the reason why this commit revert the changes
introduced by this PR so that we can fix the master branch.
Fixes#529
Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com>
The interface "VhostUserDevice" has duplicate functions and fields with
Device, so we can merge them into one interface and manage them with one
group of interfaces.
Signed-off-by: Wei Zhang <zhangwei555@huawei.com>
Fixes#50
Previously the devices are created with device manager and laterly
attached to hypervisor with "device.Attach()", this could work, but
there's no way to remember the reference count for every device, which
means if we plug one device to hypervisor twice, it's truly inserted
twice, but actually we only need to insert once but use it in many
places.
Use device manager as a consolidated entrypoint of device management can
give us a way to handle many "references" to single device, because it
can save all devices and remember it's use count.
Signed-off-by: Wei Zhang <zhangwei555@huawei.com>
* Move makeNameID() func to virtcontainers/utils file as it's a generic
function for making name and ID.
* Move bindDevicetoVFIO() and bindDevicetoHost() to vfio driver package.
Signed-off-by: Zhang Wei <zhangwei555@huawei.com>
CreateDevice() is only used by `NewDevices()` so we can make it private and
there's no need to export it.
Signed-off-by: Zhang Wei <zhangwei555@huawei.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>
