POWER9 (Talos II and Talos II Lite) coreboot beta testers needed

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Hi all, we reaching stage where beta testers of coreboot-based Dasharo Trustworthy computing will be crucial to further project progress. Why we want to replace [hostboot](https://github.com/open-power/hostboot) with [coreboot]()? Some reason were provided in excellent blog post by @krystian-hebel, which you can read [here](https://blog.3mdeb.com/2020/2020-12-31-coreboot_for_power/).

If you have Talos II, Talos II Lite or can use QEMU, and would like to help contribute feel free to join our [mailing list](https://newsletter.3mdeb.com/subscription/w2Y2G4Rrj), where we will post releases and communicate how to move forward. There is also OpenPOWER coreboot community call hold bi-weekly, which you can add to your calendar from [3mdeb events](https://3mdeb.com/events/) website. We would appreciate community support.

@tlaurion feel free to mention here anyone interested or add cross references.

Just to cross-reference:
* https://github.com/osresearch/heads/issues/692
* https://github.com/osresearch/heads/issues/720
* https://github.com/QubesOS/qubes-issues/issues/4318

Start by reviewing the coreboot and Hostboot context, the QEMU option, and the referenced cross-project issues. Confirm the testing path for Talos II, Talos II Lite, or QEMU through the project’s mailing list; done means completing beta testing and reporting useful feedback.

Written by the indexing model from the issue text.