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[Bug 1906463] [NEW] "-device help" does not report all devices
From: |
Doug Evans |
Subject: |
[Bug 1906463] [NEW] "-device help" does not report all devices |
Date: |
Wed, 02 Dec 2020 00:57:39 -0000 |
Public bug reported:
-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.
** Affects: qemu
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/1906463
Title:
"-device help" does not report all devices
Status in QEMU:
New
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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