On 2019.05.05 21:51:02 -0400, Yan Zhao wrote:
> This feature implements the version attribute for Intel's vGPU mdev
> devices.
>
> version attribute is rw.
> It's used to check device compatibility for two mdev devices.
> version string format and length are private for vendor driver. vendor
>
This feature implements the version attribute for Intel's vGPU mdev
devices.
version attribute is rw.
It's used to check device compatibility for two mdev devices.
version string format and length are private for vendor driver. vendor
driver is able to define them freely.
For Intel vGPU of gen8
version attribute is used to check two mdev devices' compatibility.
The key point of this version attribute is that it's rw.
User space has no need to understand internal of device version and no
need to compare versions by itself.
Compared to reading version strings from both two mdev devices
This patchset introduces a version attribute under sysfs of VFIO Mediated
devices.
This version attribute is used to check whether two mdev devices are
compatible.
user space software can take advantage of this version attribute to
determine whether to launch live migration between two mdev
