Bug 1000118

Summary:	AHCI assignes ide-hd automatically only to the last bus (ahci.5)
Product:	[Fedora] Fedora	Reporter:	Lukáš Doktor <ldoktor>
Component:	qemu	Assignee:	Fedora Virtualization Maintainers <virt-maint>
Status:	CLOSED DEFERRED	QA Contact:	Fedora Extras Quality Assurance <extras-qa>
Severity:	unspecified	Docs Contact:
Priority:	unspecified
Version:	19	CC:	amit.shah, berrange, cfergeau, crobinso, dwmw2, itamar, pbonzini, rjones, scottt.tw, virt-maint
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Hardware:	Unspecified
OS:	Unspecified
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Fixed In Version:		Doc Type:	Bug Fix
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Last Closed:	2013-08-31 15:05:49 UTC	Type:	Bug
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Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:

Description Lukáš Doktor 2013-08-22 18:24:06 UTC

Description of problem:
Hi guys, when I add -device ahci, the following ide-hds are added automatically into ahci.5. In order to get more than one working disk I have to specify the bus=ahci.4 (3,2,1..).

Version-Release number of selected component (if applicable):
qemu-kvm-1.4.2-5.fc19.x86_64 (+ upstream 1.5.0)

How reproducible:
Always

Steps to Reproduce:
1. qemu-system-x86_64 -device ahci -drive id=aa,file=/tmp/asdf,if=none -drive id=bb,file=/tmp/asdf,if=none -device ide-hd,drive=aa -device ide-hd,drive=bb

Actual results:
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


Expected results:
Assign the disks into the free IDE-compatible bus (ahci.4, ahci.3, ...)

Additional info:
When I explicitly specify the bus.port it works fine:
qemu-system-x86_64 -device ahci -drive id=aa,file=/tmp/asdf,if=none -drive id=bb,file=/tmp/asdf,if=none -device ide-hd,drive=aa -device ide-hd,drive=bb,bus=ahci.1
=> ahci.5 is taken by first ide-hd, ahci.1 by the second one.

Comment 1 Cole Robinson 2013-08-31 15:05:49 UTC

This is still relevant upstream, and since it's just a minor RFE I moved it to the upstream qemu tracker, please track progress there.

https://bugs.launchpad.net/qemu/+bug/1219234