Problem hiding USB host controller

[Luis P. Mendes]

Hi,

I'm trying to passthrough a USB host controller (2.0 or 3.0) but there
seems to be some kind of problem.

# uname -a
FreeBSD leao 10.1-STABLE FreeBSD 10.1-STABLE #0 r279201: Mon Feb 23
18:55:46 UTC 2015
root at releng1.nyi.freebsd.org:/usr/obj/usr/src/sys/GENERIC  amd64

VT-d is enabled in bios.
CPU is a Intel Xeon E3-1246v3 Haswell


# cat /boot/loader.conf
# load radeon firmware not presented
pptdevs="0/26/0 1/0/0 0/20/0"
blackhole_load="YES"

# pciconf -lv
# only relevant
ehci0 at pci0:0:26:0:      class=0x0c0320 card=0x8c2d1849 chip=0x8c2d8086
rev=0x05 hdr=0x00
    vendor     = 'Intel Corporation'
    device     = 'Lynx Point USB Enhanced Host Controller'
    class      = serial bus
    subclass   = USB

xhci0 at pci0:0:20:0:      class=0x0c0330 card=0x8c311849 chip=0x8c318086
rev=0x05 hdr=0x00
    vendor     = 'Intel Corporation'
    device     = 'Lynx Point USB xHCI Host Controller'
    class      = serial bus
    subclass   = USB

ppt0 at pci0:1:0:0:        class=0x010601 card=0x91721849 chip=0x91721b4b
rev=0x11 hdr=0x00


Only the 1:0:0 disk controler is hidden.  The two USB controllers, one
ehci and one xhci are not.

Why don't the controllers get hidden?
Is the blackhole_load="YES" still relevant?  I tried with and without
that line to no avail.
Is my STABLE version too old?


Luis

PS.  Keep up the excellent work bringing