------- Comment From [email protected] 2022-02-15 07:46 EDT-------
I have downloaded the master-next branch from ubuntu version 20. I used this
repository: Fetch URL: 
https://git.launchpad.net/~ubuntu-kernel/ubuntu/+source/linux/+git/focal

The patches needed to support the new machine are already upstream since
5.17.0rc1:
1. Patch a87b0fd4f9003f8521226e226cf92b18147b3519 Adds support for the CPU 
Measurement Counter Facility second version
number 7.
2. Patch 745f5d20e7936931f924410f32d8b0e599b5990e s390/cpumf: Support for CPU 
Measurement Sampling Facility LS
bit

The first upstream patch (commit a87b0fd4f900) does not apply and I had to
rework it. I have attached the reworked version and now it applies and compiles.

The second upstream patch (commit 745f5d20e7936) applies clean (with 3 lines 
off).
I also have attached the second patch for completeness.

I consider this item complete. Please let me know if you have any
questions.

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Title:
  [UBUNTU 20.04] kernel: Add support for CPU-MF counter second version 7

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