[Bug 288488] sysutils/bhyve-firmware: Chimera Linux bhyve VM crashes only with uefi loader

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=288488

            Bug ID: 288488
           Summary: sysutils/bhyve-firmware: Chimera Linux bhyve VM
                    crashes only with uefi loader
           Product: Ports & Packages
           Version: Latest
          Hardware: amd64
                OS: Any
            Status: New
          Severity: Affects Only Me
          Priority: ---
         Component: Individual Port(s)
          Assignee: ports-bugs@FreeBSD.org
          Reporter: polyduekes@proton.me
                CC: fabian.freyer@physik.tu-berlin.de
                CC: fabian.freyer@physik.tu-berlin.de
             Flags: maintainer-feedback?(fabian.freyer@physik.tu-berlin.de
                    )

a Chimera Linux VM created using the image
https://repo.chimera-linux.org/live/latest/chimera-linux-x86_64-LIVE-20250420-base.iso
crashes only with uefi loader but works fine on bare metal, with bhyve with
grub loader, with vbox

System info:-
CPU: Intel(R) Core(TM) i5 CPU         650  @ 3.20GHz (3191.27-MHz K8-class CPU)
  Origin="GenuineIntel"  Id=0x20652  Family=0x6  Model=0x25  Stepping=2
 
Features=0xbfebfbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CLFLUSH,DTS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,PBE>
 
Features2=0x298e3ff<SSE3,PCLMULQDQ,DTES64,MON,DS_CPL,VMX,SMX,EST,TM2,SSSE3,CX16,xTPR,PDCM,SSE4.1,SSE4.2,POPCNT,AESNI>
  AMD Features=0x28100800<SYSCALL,NX,RDTSCP,LM>
  AMD Features2=0x1<LAHF>
  VT-x: PAT,HLT,MTF,PAUSE,EPT,UG,VPID

FreeBSD version:-14.3-RELEASE

bhyve example config:-
[bhyve options: -c 2 -m 4096M -AHPw -l
bootrom,/usr/local/share/uefi-firmware/BHYVE_UEFI.fd,/Pool/vm-bhyve/chimera/uefi-vars.fd
-U 47ba7a95-6ace-11f0-9515-00e04f0a8040 -u]
[bhyve devices: -s 0,hostbridge -s 31,lpc -s
4:0,nvme,/Pool/vm-bhyve/chimera/disk0.img -s
5:0,virtio-net,tap0,mac=58:9c:fc:00:22:ec -s 6:0,fbuf,tcp=0.0.0.0:5900,wait -s
7:0,xhci,tablet]
[bhyve console: -l com1,/dev/nmdm-chimera.1A]
[bhyve iso device: -s
3:0,ahci-cd,/media/SanDisk_Ultra_4C531001580322108071_s1/chimera-linux-x86_64-LIVE-20250420-base.iso,ro]

bhyve crash log: vm exit[0]
        reason          VMX
        rip             0x00000000be79369e
        inst_length     3
        status          0
        exit_reason     33 (VM-entry failure due to invalid guest state)
        qualification   0x0000000000000000
        inst_type               0
        inst_error              0

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