Hi Paul,
Bugs in launchpad are filed against source packages, and "src:kvm" doesn't 
exist for more than 8 years now :-) Instead you'd want to file it against the 
package the code is in, in your case most likely src:qemu [1] or src:linux [2].

Also you should talk about the target Ubuntu release you want the fix to
be in. I assume from the type of bug that you want to feature request
for the coming LTS Ubuntu 22.04 - but please clarify to be sure.

Finally referencing to features/commits works much better if you could
please include the hashes of the commits. Please consider doing so once
they exist upstream. If they are not existing there someone needs to
provide the patches upfront and convince the team that they are stable
enough to be picked up.

The referred kernel version is in the future, so that might be a normal bug for 
a new feature.
I'll re-assign this to src:linux for now as your bug indicates that is the 
target.

[1]: https://bugs.launchpad.net/ubuntu/+source/qemu
[2]: https://bugs.launchpad.net/ubuntu/+source/linux

** Package changed: kvm (Ubuntu) => linux (Ubuntu)

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https://bugs.launchpad.net/bugs/1954464

Title:
  kvm SPR support for AMX

Status in linux package in Ubuntu:
  Incomplete

Bug description:
  AMX (including XFD):  AMX (Advance Matrix eXtensions) is a new programming 
paradigm for direct matrix operations. TMUL (TILE Matrix mULtiply unit) is the 
multiply accelerator. XFD (Extended Feature Disable) is an XSAVE extension 
mechanism for those features with large XSAVE storage context, that enables the 
OS not pre-allocate the space initially. AMX is the first one using XFD feature.
  Use cases: Deep learning inference and training (CNN, DNN), other data 
analytics and machine learning apps, HPC SGEMM

  Target Linux 5.17

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