============================================================
GUEST ENVIRONMENT (DF-1586 verification)
============================================================
$ uname -a
DragonFly dfbsd 6.5-DEVELOPMENT DragonFly 6.5-DEVELOPMENT #0: Thu Jul  2 06:02:54 UTC 2026     root@dfbsd:/usr/obj/usr/src/sys/X86_64_GENERIC  x86_64

$ sysctl -n kern.version
DragonFly 6.5-DEVELOPMENT #0: Thu Jul  2 06:02:54 UTC 2026
    root@dfbsd:/usr/obj/usr/src/sys/X86_64_GENERIC

$ cc --version | head -1
cc 8.3 [DragonFly] Release/2019-02-22

============================================================
KERNEL CONFIG — relevant devices
============================================================
$ grep -iE 'drm|radeon|amdgpu' sys/config/X86_64_GENERIC
(empty — not in default kernel)

$ grep -iE 'drm|radeon|amdgpu' sys/config/LINT64
device  drm
device  radeon
(amdgpu is a loadable KLD module only)

============================================================
LOADED MODULES / PCI at verification time
============================================================
$ kldstat | grep -iE 'drm|amdgpu|radeon'
(empty)

$ pciconf -l
... vgapci0@pci0:0:2:0: class=0x030000 card=0x11001af4 chip=0x11111234 (QEMU std VGA, NOT AMD) ...

============================================================
SUMMARY
============================================================
Same reachability story as DF-1574 (sibling): the vega10 powerplay
parser is part of the amdgpu KLD module, not in any default kernel,
and no AMD GPU hardware is present in the guest.