Added a section in "Usage" chapter of "iommu.md" to introduce the
special behavior when virtio-iommu is working with FDT on AArch64.
Signed-off-by: Michael Zhao <michael.zhao@arm.com>
With recent kernels, it is now expected to use "bind" control from the
sysfs in order to bind a specific device to the vfio-pci driver.
The use of "new_id" is still required but it is only needed once per
device type. Let's say you want to bind two virtio-net devices, you will
need to add the device_id:vendor_id pair through "new_id", while you
will be required to use "bind" for each device.
Fixes#2545
Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com>
Use of backing file is deprecated hence use the `hugepages` field.
Also use the `boot` field for specifying number of cpus
Signed-off-by: Amey Narkhede <ameynarkhede02@gmail.com>
Now that our CI has transitioned from ClearLinux to Ubuntu images
exclusively, let's update the documentation to refer to Ubuntu images
instead of ClearLinux's ones.
Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com>
This patch extends the existing virtual IOMMU documentation, explaining
how the use of huge pages can drastically improve the VM boot time.
Particularly, how in case of nested VFIO, the impact is significant and
the rationales behind it.
Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com>
This patch introduces a specific documentation for the virtual IOMMU
device. This is important to understand what the use cases are for this
new device and how to properly use it with virtio devices.
Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com>
