Add SEV-SNP guest verification test module

[RoyCai7]

[Progress ticket: https://progress.opensuse.org/issues/181193

Features:

• Host-side SEV-SNP support verification with kernel parameter validation
• Guest VM configuration for SEV-SNP with XML modification
• Guest-side SEV-SNP activation verification via dmesg analysis
• Attestation report generation and verification
• Comprehensive log collection for debugging
• Support for 15-SP7 MU, and SLES 16+
• Handles incompatible features removal (TPM, SMM, memoryBacking)
• Integration with Confidential Computing module activation
• The test supports both MU and unified guest installation
  modes.

New Flavors for sle15sp7 sev-snp testing:

• Server-DVD-Incidents-VIRT-Core
• Server-DVD-Incidents-VIRT-Tools-CoCo

Metadata MR:
https://gitlab.suse.de/qa-maintenance/metadata/-/merge_requests/1436

Currently, Kaylee is the only machine configured for SLES 15 SP7 SEV-SNP testing, and bare-metal1 is the only one set up for SLES 16 SEV-SNP testing.

Job group MR:
https://gitlab.suse.de/qa-testsuites/openqa-job-group-yaml/-/merge_requests/286

New workerclass MR:
https://gitlab.suse.de/openqa/salt-pillars-openqa/-/merge_requests/1098

For MU machine, will set new workerclass on void server.

VR:

sle16 sev-snp testing:
Bare-metal1: https://openqa.suse.de/tests/18552472
Bare-emtal2: https://openqa.suse.de/tests/18561625

sle15sp7 sev-snp testing:
Kaylee: https://openqa.suse.de/tests/18494902
River: https://openqa.suse.de/tests/18563802

sle16 related test(sev-es):
sle-16.0-Online-x86_64-Build119.1-sev-es-gi-guest_developing-on-host_developing-kvm@64bit-ipmi-amd-zen3-uefi

sle15 MU testing
sle15sp5 sriov testing

[github-actions]

Great PR! Please pay attention to the following items before merging:

Files matching lib/**.pm:

• Consider adding or extending unit tests in t/

This is an automatically generated QA checklist based on modified files.

[RoyCai7]

@RoyCai7 For maintenance mode test,

• it would need MR in this repo to add the necessary incident repos for COCO for test. Have this been done? I do not find it.
• Besides a new flavors is better to be created for sev-snp to trigger the test set for related pkgs, see reviewed proposal in https://progress.opensuse.org/issues/134315#note-45

Done.
New Falvors:
Server-DVD-Incidents-VIRT-Core
Server-DVD-Incidents-VIRT-Tools-CoCo

MR: https://gitlab.suse.de/qa-maintenance/metadata/-/merge_requests/1436

[alice-suse]

@RoyCai7 For maintenance mode test,

• it would need MR in this repo to add the necessary incident repos for COCO for test. Have this been done? I do not find it.
• Besides a new flavors is better to be created for sev-snp to trigger the test set for related pkgs, see reviewed proposal in https://progress.opensuse.org/issues/134315#note-45

Done. New Falvors: Server-DVD-Incidents-VIRT-Core-CoCo Server-DVD-Incidents-VIRT-Tools-CoCo Server-DVD-Incidents-VIRT-Kernel-CoCo

MR: https://gitlab.suse.de/qa-maintenance/metadata/-/merge_requests/1436

Hi @RoyCai7 The code LGTM. I think it is close to merge :) . Let's wait longer for others review.

BTW, I do not see the MR for job group yaml of sle16 and MU. Will you create one?
Besides, this is big PR which may have impacts to existing tests. Would you please add some regression test for MU, sle16 uefi vm and sev-es and copy the jobs here? At last, there is no jobs for failure tests which can show that the needed logs are uploaded. Is it possible to add some key failure jobs (may need some fake hard-coded return code to trigger the errors)?

[RoyCai7]

@RoyCai7 For maintenance mode test,

• it would need MR in this repo to add the necessary incident repos for COCO for test. Have this been done? I do not find it.
• Besides a new flavors is better to be created for sev-snp to trigger the test set for related pkgs, see reviewed proposal in https://progress.opensuse.org/issues/134315#note-45

Done. New Falvors: Server-DVD-Incidents-VIRT-Core-CoCo Server-DVD-Incidents-VIRT-Tools-CoCo Server-DVD-Incidents-VIRT-Kernel-CoCo
MR: https://gitlab.suse.de/qa-maintenance/metadata/-/merge_requests/1436

Hi @RoyCai7 The code LGTM. I think it is close to merge :) . Let's wait longer for others review.

BTW, I do not see the MR for job group yaml of sle16 and MU. Will you create one? Besides, this is big PR which may have impacts to existing tests. Would you please add some regression test for MU, sle16 uefi vm and sev-es and copy the jobs here? At last, there is no jobs for failure tests which can show that the needed logs are uploaded. Is it possible to add some key failure jobs (may need some fake hard-coded return code to trigger the errors)?

Done, please check: #22445 (comment)

[alice-suse]

LGTM, thanks

[alice-suse]

Stops waiting for more review. Merge it now.