[Bug 240734] Broken Hyper-V Generation V2

[bugzilla-noreply at freebsd.org]

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=240734

--- Comment #14 from Michael <michael.adm at gmail.com> ---
I found the culprit in the disappearance of the keyboard.

commit  e609c3d1a1ef3699fcbdffe70a23ad316fbfe7d7
imp <imp at FreeBSD.org>   
Wed, 14 Aug 2019 22:58:28 +0200 (20:58 +0000)
 Move hyperv to files.x86
  Move the comomon part of hyperv to files.x86.
 Reviewed by: jhb (verbal OK on irc)
 Differential Revision: https://reviews.freebsd.org/D21248


root at frw03v2:~ # uname -a
  FreeBSD frw03v2.hv.lan 13.0-CURRENT FreeBSD 13.0-CURRENT
b6af6d7d598-c261983(HEAD) GENERIC  amd64
root at frw03v2:~ # 
root at frw03v2:~ # sysctl -a | grep kbd
  kbd0 at kbdmux0
  hvkbd0: <Hyper-V KBD> on vmbus0
  kbd0 at kbdmux0
  hvkbd0: <Hyper-V KBD> on vmbus0
  kbd0 at kbdmux0
  hvkbd0: <Hyper-V KBD> on vmbus0
  kbd0 at kbdmux0
  hvkbd0: <Hyper-V KBD> on vmbus0
  kbd0 at kbdmux0
  hvkbd0: <Hyper-V KBD> on vmbus0
  kbd0 at kbdmux0
  hvkbd0: <Hyper-V KBD> on vmbus0
  kbd0 at kbdmux0
  hvkbd0: <Hyper-V KBD> on vmbus0
  kbd0 at kbdmux0
  hvkbd0: <Hyper-V KBD> on vmbus0
  kbd0 at kbdmux0
  hvkbd0: <Hyper-V KBD> on vmbus0
  device  atkbdc
  device  atkbd
  device  kbdmux
  device  ukbd
  kern.vt.kbd_panic: 0
  kern.vt.kbd_debug: 1
  kern.vt.kbd_reboot: 1
  kern.vt.kbd_poweroff: 1
  kern.vt.kbd_halt: 1
  kern.evdev.input.1.phys: kbdmux0
  "Giant","hv_kbdc mutex"
  hw.usb.ukbd.pollrate: 0
  hw.usb.ukbd.no_leds: 0
  hw.usb.ukbd.debug: 0
  hw.syscons.kbd_debug: 1
  hw.syscons.kbd_reboot: 1
  hw.kbd.keymap_restrict_change: 0
  dev.hvkbd.0.debug: 0
  dev.hvkbd.0.channel.4.br.tx.state: rindex:32 windex:32 imask:0 ravail:0
wavail:36864
  dev.hvkbd.0.channel.4.br.rx.state: rindex:592 windex:592 imask:0 ravail:0
wavail:36864
  dev.hvkbd.0.channel.4.mnf: 0
  dev.hvkbd.0.channel.4.cpu: 0
  dev.hvkbd.0.%parent: vmbus0
  dev.hvkbd.0.%pnpinfo: classid=f912ad6d-2b17-48ea-bd65-f927a61c7684
deviceid=d34b2567-b9b6-42b9-8778-0a4ec0b955bf
  dev.hvkbd.0.%location:
  dev.hvkbd.0.%driver: hvkbd
->dev.hvkbd.0.%desc: Hyper-V KBD
  dev.hvkbd.%parent:
root at frw03v2:~ # 
root at frw03v2:~ # cd /usr/src
root at frw03v2:/usr/src #
root at frw03v2:/usr/src # git checkout e609c3d1a1ef3699fcbdffe70a23ad316fbfe7d7
  Previous HEAD position was  b6af6d7d598 The bxe driver, QLogic NetXtreme II
Ethernet 10Gb PCIe adapter driver, is x86 specific, and only builds there.
Likewise the module is built there. Move it to the x86-only files.x86.
   HEAD is now at e609c3d1a1e Move hyperv to files.x86
    committer   imp <imp at FreeBSD.org>   
    Wed, 14 Aug 2019 22:58:28 +0200 (20:58 +0000)
root at frw03v2:/usr/src #
root at frw03v2:/usr/src # make cleanworld && make cleandir && make -j8
buildkernel KERNCONF=GENERIC
...
--------------------------------------------------------------
>>> Kernel build for GENERIC completed on Wed Oct 30 11:17:31 EET 2019
--------------------------------------------------------------
>>> Kernel(s)  GENERIC built in 620 seconds, ncpu: 8, make -j8
--------------------------------------------------------------
root at frw03v2:/usr/src # 
root at frw03v2:/usr/src # make installkernel KERNCONF=GENERIC
...
--------------------------------------------------------------
>>> Installing kernel GENERIC completed on Wed Oct 30 11:24:42 EET 2019
--------------------------------------------------------------
root at frw03v2:/usr/src # 
root at frw03v2:/usr/src # reboot
. . . . . 
root at frw03v2:~ # uname -a
  FreeBSD frw03v2.hv.lan 13.0-CURRENT FreeBSD 13.0-CURRENT
e609c3d1a1e-c261984(HEAD) GENERIC  amd64
root at frw03v2:~ # 
root at frw03v2:~ # sysctl -a | grep kbd
kbd0 at kbdmux0
hvkbd0: <Hyper-V KBD> on vmbus0
kbd0 at kbdmux0
hvkbd0: <Hyper-V KBD> on vmbus0
kbd0 at kbdmux0
hvkbd0: <Hyper-V KBD> on vmbus0
kbd0 at kbdmux0
hvkbd0: <Hyper-V KBD> on vmbus0
kbd0 at kbdmux0
hvkbd0: <Hyper-V KBD> on vmbus0
kbd0 at kbdmux0
hvkbd0: <Hyper-V KBD> on vmbus0
kbd0 at kbdmux0
hvkbd0: <Hyper-V KBD> on vmbus0
kbd0 at kbdmux0
hvkbd0: <Hyper-V KBD> on vmbus0
kbd0 at kbdmux0
device  atkbdc
device  atkbd
device  kbdmux
device  ukbd
kern.vt.kbd_panic: 0
kern.vt.kbd_debug: 1
kern.vt.kbd_reboot: 1
kern.vt.kbd_poweroff: 1
kern.vt.kbd_halt: 1
kern.evdev.input.1.phys: kbdmux0
hw.usb.ukbd.pollrate: 0
hw.usb.ukbd.no_leds: 0
hw.usb.ukbd.debug: 0
hw.syscons.kbd_debug: 1
hw.syscons.kbd_reboot: 1
hw.kbd.keymap_restrict_change: 0
root at frw03v2:~ # 

After commit e609c3d1a1ef3699fcbdffe70a23ad316fbfe7d7 driver "Hyper-V KBD" is
absent and keyboard does not work in hyper-v management interface of Windows
2019 Hyper-V, Generation V2

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