[Bug 275760] bhyve: xhci not working on linux guests

From: <bugzilla-noreply_at_freebsd.org>
Date: Thu, 14 Dec 2023 09:20:52 UTC 
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=275760

            Bug ID: 275760
           Summary: bhyve: xhci not working on linux guests
           Product: Base System
           Version: 14.0-RELEASE
          Hardware: Any
                OS: Any
            Status: New
          Severity: Affects Only Me
          Priority: ---
         Component: bhyve
          Assignee: virtualization@FreeBSD.org
          Reporter: corvink@FreeBSD.org

On newer linux versions the guest may fail to use xhci,tablet device. The
issues exists in 13.2 and 14.0 with the latest debian installer image and
latest ubuntu 22.04. bhyve logs the following errors:
```
pci_xhci: portregs_write to unpowered port 1
```

I've found an illumos bug [1] fixing the same issue. Unfortunately, the illumos
fix causes the warning to disappear but the issue still exists.

[1] https://www.illumos.org/issues/14623

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