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[Qemu-devel] [Bug 1219234] Re: -device ide-hd will assign bus with with
From: |
John Snow |
Subject: |
[Qemu-devel] [Bug 1219234] Re: -device ide-hd will assign bus with with no free units |
Date: |
Wed, 31 Aug 2016 18:36:43 -0000 |
** Changed in: qemu
Assignee: (unassigned) => John Snow (jnsnow)
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https://bugs.launchpad.net/bugs/1219234
Title:
-device ide-hd will assign bus with with no free units
Status in QEMU:
New
Bug description:
Originally filed here:
https://bugzilla.redhat.com/show_bug.cgi?id=1000118
./x86_64-softmmu/qemu-system-x86_64 -device ahci -drive
id=aa,file=/tmp/foo,if=none -drive id=bb,file=/tmp/foo,if=none -device
ide-hd,drive=aa -device ide-hd,drive=bb
qemu-system-x86_64: -device ide-hd,drive=bb: Can't create IDE unit 1, bus
supports only 1 units
qemu-system-x86_64: -device ide-hd,drive=bb: Device initialization failed.
qemu-system-x86_64: -device ide-hd,drive=bb: Device 'ide-hd' could not be
initialized
If a bus isn't specified for -device ide-hd, it just uses the first
bus it finds, not taking into account if that bus was already assigned
for another device. So users are forced to do -device ide-hd,bus=ide.0
-device ide-hd,bus=ide.1, etc.
This isn't specific to -device ahci, but it's worse there since there
isn't any -drive if=IDE or -hda convenience option, which both seem to
get the logic correct.
I know -device is the 'build it yourself' approach so I understand if
this is WONTFIX.
This is affects qemu.git as of today (8-31-2013)
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