[Bug 273560] sysutils/edk2: bhyve flavor causes windows VMs to fail to boot after update to 202308

From: <bugzilla-noreply_at_freebsd.org>
Date: Mon, 04 Sep 2023 10:59:22 UTC 
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=273560

            Bug ID: 273560
           Summary: sysutils/edk2: bhyve flavor causes windows VMs to fail
                    to boot after update to 202308
           Product: Ports & Packages
           Version: Latest
          Hardware: Any
                OS: Any
            Status: New
          Severity: Affects Only Me
          Priority: ---
         Component: Individual Port(s)
          Assignee: uboot@FreeBSD.org
          Reporter: madpilot@FreeBSD.org
             Flags: maintainer-feedback?(uboot@FreeBSD.org)
          Assignee: uboot@FreeBSD.org

Hi!

First thanks for your work on this port.

Unluckily after upgrading the bhyve flavor package to the latest version
(202308), the Windows 10 Pro Virtual machines I have running under bhyve
stopped working. They were crashing on boot with error 0xc0000225. I did blame
windows for this, but I was also unable to boot the official windows 10
installation media to try recovery or a new installation.

The installation media was showing a blue screen, 100% vcpu usage for  while
and then crashing.

Googling around there were indications similar behaviour was showing up also on
physical machines with buggy UEFI BIOSes.

At this point I noticed the edk2 port provided UEFI firmware was recently
updated.

I have now reverted to the previous version (202202), grabbing the port before
commit 8097dda40a03b8a27a1edf1f31a8af0455a52baf , and the windows VMs are now
working fine again without need of any change.

I think this regression should be investigated, at least. Maybe upstream
already has a fix for this?

If any further information is required please ask.

Thanks in advance!

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