XEN command parameters for pciback(4)?

[Jaromír Doleček <jaromir.dolecek%gmail.com@localhost>]

Hello,

I've tried to use pciback(4), but it seems the code gets empty command
parameters from the call:

xen_parse_cmdline(XEN_PARSE_PCIBACK, &xi);

I'm using classic multiboot parameters in boot.cfg:

Xen:load /netbsd-XEN3_DOM0;multiboot /xen.gz dom0_mem=2G,max:2G
autobaloon=0 console=com1 com1=115200,8n1 root=sd0a
pciback.hide=(001:00.1)(001:00.0)

Xen says:

(XEN) Xen version 4.2.5 (root@) (gcc (nb1 20160606) 5.5.0) Sun Jun 17
21:15:59 CEST 2018
(XEN) Latest ChangeSet: unavailable
(XEN) Bootloader: unknown
(XEN) Command line: dom0_mem=2G,max:2G autobaloon=0 console=com1
com1=115200,8n1 root=sd0a pciback.hide=(001:00.1)(001:00.0)

but for some reason the command line as received in NetBSD is empty.

Any ideas how can this be fixed?

Jaromir