maintainer-feedback requested: [Bug 280286] sysutils/edk2: g202308 Windows guest has driver errors in FreeBSD 14.1

Bugzilla Automation <bugzilla@FreeBSD.org> has asked freebsd-uboot (Nobody)
<uboot@FreeBSD.org> for maintainer-feedback:
Bug 280286: sysutils/edk2: g202308 Windows guest has driver errors in FreeBSD
14.1
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=280286



--- Description ---
Hi,

I'm trying to pass through the 630 UHD iGPU from my i7-9700T to a Windows 10
guest.

The device shows up in Windows but encounters error code 43.

In addition, there are 4 COM ports all with error code 12.
This might be happening to other users, see comment 20 on bug 274389:

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=274389#c20

Reverting back to g202202_10 solves the COM port errors, but not the iGPU
error.

More info on my investigation is available on the FreeBSD forum, starting here:

https://forums.freebsd.org/threads/experience-from-bhyve-freebsd-14-1-gpu-passt
hrough-with-windows-10-guest.94118/post-661914

Attaching debug logs from edk2-bhyve for various versions, with and without
"fwcfg=qemu" flag.

I'm willing to try patches, commands, etc. or provide more info if it helps.

Thanks