[Bug 1906463] Re: "-device help" does not report all devices

[Thomas Huth]

This works as intended, see Markus' reply here:
https://lists.gnu.org/archive/html/qemu-devel/2020-12/msg00337.html


** Changed in: qemu
       Status: New => Invalid

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https://bugs.launchpad.net/bugs/1906463

Title:
  "-device help" does not report all devices

Status in QEMU:
  Invalid

Bug description:
  -device help doesn't report all devices.
  E.g., devices that are instantiated by a board don't get printed in part 
because they don't exist when "-device help" is processed. As an experiment I 
deferred processing of "-device help" as long as possible and some devices were 
still not printed, so there's more going on here.

  QEMU commit hash: 944fdc5e27a5b5adbb765891e8e70e88ba9a00ec

  Repro:
  $ configure --target-list=arm-softmmu
  $ make
  $ ./qemu-system-arm -device help | grep npcm7xx
  <empty>

  I'd expect to see things like npcm7xx-rng in the output.

  I can imagine enumerating board-provided devices is a challenge.
  Still, it'd be really nice if "-device help" printed them, and having
  "-device $driver,help" work as well.

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