bhyve passthru problem

From: Oleksandr Kryvulia <shuriku_at_shurik.kiev.ua>
Date: Thu, 13 Jun 2024 07:53:52 UTC 
I'm trying to passthru a wwan-adapter to linux guest using 
sysutils/vm-bhyve-devel.

ppt0@pci0:8:0:0:        class=0x0d4000 rev=0x01 hdr=0x00 vendor=0x8086 
device=0x7560 subvendor=0x1cf8 subdevice=0x8654
    vendor     = 'Intel Corporation'
    device     = 'XMM7560 LTE Advanced Pro Modem'
    class      = wireless controller
    subclass   = cellular controller/modem

The guest does not start with an error:

bhyve: passthru device 8/0/0 BAR 2: base 0xbc201000 or size 0x100 not 
page aligned
bhyve: failed to initialize BARs for PCI 8/0/0
Device emulation initialization error: No such file or directory

What I am doing wrong?