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Bug 1001076

Summary:	Disable or remove other block devices we won't support
Product:	Red Hat Enterprise Linux 7	Reporter:	Markus Armbruster <armbru>
Component:	qemu-kvm	Assignee:	Markus Armbruster <armbru>
Status:	CLOSED CURRENTRELEASE	QA Contact:	Virtualization Bugs <virt-bugs>
Severity:	unspecified	Docs Contact:
Priority:	unspecified
Version:	7.0	CC:	acathrow, juli, juzhang, knoel, michen, sluo, virt-maint
Target Milestone:	rc
Target Release:	---
Hardware:	Unspecified
OS:	Unspecified
Whiteboard:
Fixed In Version:	qemu-kvm-1.5.3-15.el7	Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2014-06-13 11:22:19 UTC	Type:	Bug
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:	1001216
Bug Blocks:	720747

Description Markus Armbruster 2013-08-26 12:56:46 UTC

Description of problem:
The following block devices should be removed or made unavailable with -device / device_add:

name "cfi.pflash01", bus System
name "isa-ide", bus ISA
name "piix3-ide-xen", bus PCI, no-user
name "piix4-ide", bus PCI, no-user
name "sysbus-ahci", bus System
name "sysbus-fdc", bus System

How reproducible:
Always

Steps to Reproduce:
1. for X in the above devices: -device X

Actual results:
-device X is accepted

Expected results:
-device X is rejected, just like -device nonexistant

Comment 1 Markus Armbruster 2013-08-26 13:06:45 UTC

Note: some other unwanted block devices are tracked separately: bug 903914 (usb-uas), bug 903918 (lsi53c895a am53c974 dc390 esp megasas pvscsi), bug 994642 (vhost-scsi vhost-scsi-pci).

Comment 3 Markus Armbruster 2013-08-26 16:39:28 UTC

Another one to disable:
name "SUNW,fdtwo", bus System

Comment 4 Miroslav Rezanina 2013-11-07 08:22:41 UTC

Fix included in qemu-kvm-1.5.3-15.el7

Comment 6 Jun Li 2013-12-12 07:49:30 UTC

Verify this bug:
Version-Release number of selected component (if applicable):
qemu-kvm-rhev-1.5.3-21.el7.x86_64
---
# /usr/libexec/qemu-kvm -device ?
Controller/Bridge/Hub devices:
name "i82801b11-bridge", bus PCI
name "ioh3420", bus PCI, desc "Intel IOH device id 3420 PCIE Root Port"
name "pci-bridge", bus PCI, desc "Standard PCI Bridge"
name "usb-host", bus usb-bus
name "usb-hub", bus usb-bus
name "x3130-upstream", bus PCI, desc "TI X3130 Upstream Port of PCI Express Switch"
name "xio3130-downstream", bus PCI, desc "TI X3130 Downstream Port of PCI Express Switch"

USB devices:
name "ich9-usb-ehci1", bus PCI
name "ich9-usb-ehci2", bus PCI
name "ich9-usb-uhci1", bus PCI
name "ich9-usb-uhci2", bus PCI
name "ich9-usb-uhci3", bus PCI
name "ich9-usb-uhci4", bus PCI
name "ich9-usb-uhci5", bus PCI
name "ich9-usb-uhci6", bus PCI
name "nec-usb-xhci", bus PCI
name "piix3-usb-uhci", bus PCI
name "piix4-usb-uhci", bus PCI
name "usb-ehci", bus PCI
name "vt82c686b-usb-uhci", bus PCI

Storage devices:
name "ich9-ahci", bus PCI, alias "ahci"
name "ide-cd", bus IDE, desc "virtual IDE CD-ROM"
name "ide-drive", bus IDE, desc "virtual IDE disk or CD-ROM (legacy)"
name "ide-hd", bus IDE, desc "virtual IDE disk"
name "scsi-block", bus SCSI, desc "SCSI block device passthrough"
name "scsi-cd", bus SCSI, desc "virtual SCSI CD-ROM"
name "scsi-disk", bus SCSI, desc "virtual SCSI disk or CD-ROM (legacy)"
name "scsi-generic", bus SCSI, desc "pass through generic scsi device (/dev/sg*)"
name "scsi-hd", bus SCSI, desc "virtual SCSI disk"
name "usb-bot", bus usb-bus
name "usb-storage", bus usb-bus
name "virtio-blk-device", bus virtio-bus
name "virtio-blk-pci", bus PCI, alias "virtio-blk"
name "virtio-scsi-device", bus virtio-bus
name "virtio-scsi-pci", bus PCI

Network devices:
name "e1000", bus PCI, desc "Intel Gigabit Ethernet"
name "rtl8139", bus PCI
name "virtio-net-device", bus virtio-bus
name "virtio-net-pci", bus PCI, alias "virtio-net"

Input devices:
name "ccid-card-passthru", bus ccid-bus, desc "passthrough smartcard"
name "isa-serial", bus ISA
name "pci-serial", bus PCI
name "usb-ccid", bus usb-bus, desc "CCID Rev 1.1 smartcard reader"
name "usb-kbd", bus usb-bus
name "usb-mouse", bus usb-bus
name "virtconsole", bus virtio-serial-bus
name "virtio-serial-device", bus virtio-bus
name "virtio-serial-pci", bus PCI, alias "virtio-serial"
name "virtserialport", bus virtio-serial-bus

Display devices:
name "cirrus-vga", bus PCI, desc "Cirrus CLGD 54xx VGA"
name "qxl", bus PCI, desc "Spice QXL GPU (secondary)"
name "qxl-vga", bus PCI, desc "Spice QXL GPU (primary, vga compatible)"
name "sga", bus ISA, desc "Serial Graphics Adapter"
name "VGA", bus PCI

Sound devices:
name "AC97", bus PCI, desc "Intel 82801AA AC97 Audio"
name "hda-duplex", bus HDA, desc "HDA Audio Codec, duplex (line-out, line-in)"
name "hda-micro", bus HDA, desc "HDA Audio Codec, duplex (speaker, microphone)"
name "hda-output", bus HDA, desc "HDA Audio Codec, output-only (line-out)"
name "ich9-intel-hda", bus PCI, desc "Intel HD Audio Controller (ich9)"
name "intel-hda", bus PCI, desc "Intel HD Audio Controller (ich6)"

Misc devices:
name "i6300esb", bus PCI
name "ib700", bus ISA
name "isa-debug-exit", bus ISA
name "isa-debugcon", bus ISA
name "kvm-pci-assign", bus PCI, alias "pci-assign", desc "KVM-based PCI passthrough"
name "pc-testdev", bus ISA
name "pci-testdev", bus PCI, desc "PCI Test Device"
name "smbus-eeprom", bus i2c-bus
name "usb-redir", bus usb-bus
name "usb-tablet", bus usb-bus
name "vfio-pci", bus PCI, desc "VFIO-based PCI device assignment"
name "virtio-balloon-device", bus virtio-bus
name "virtio-balloon-pci", bus PCI, alias "virtio-balloon"
name "virtio-rng-device", bus virtio-bus
name "virtio-rng-pci", bus PCI

Uncategorized devices:
name "pvpanic", bus ISA
---
# /usr/libexec/qemu-kvm -device X,?
qemu-kvm: -device X,?: Parameter 'driver' expects device type
---
Based on above test, this bug has been verified.

Comment 7 Jun Li 2013-12-12 08:44:33 UTC

qemu-kvm-1.5.3-21.el7.x86_64 got the same results as comments 6.

Comment 8 Jun Li 2013-12-16 08:02:21 UTC

Based on comment 6, the following block devices(comment 0 described) have been removed or made unavailable with -device / device_add:
name "cfi.pflash01", bus System
name "isa-ide", bus ISA
name "piix3-ide-xen", bus PCI, no-user
name "piix4-ide", bus PCI, no-user
name "sysbus-ahci", bus System
name "sysbus-fdc", bus System

Comment 10 Ludek Smid 2014-06-13 11:22:19 UTC

This request was resolved in Red Hat Enterprise Linux 7.0.

Contact your manager or support representative in case you have further questions about the request.