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Description of problem:
KVM QE compared the list of cmd line and devices difference between rhel6.4 and rhel7.0. Found some virtio scsi related device are added. From KVM QE POV, Plese disable or remove virtio scsi related devices that qemu-kvm does not support.
Version-Release number of selected component (if applicable):
Host Kernel
#uname -r
3.7.0-0.30.el7.x86_64
qemu-kvm version
qemu-kvm-1.3.0-3.el7.x86_64
How reproducible:
Steps to Reproduce:
1.
2.
3.
Actual results:
RHEL6.4
Virtio-scsi device
#/usr/libexec/qemu-kvm -device ? 2>&1 | grep -i scsi
name "virtio-scsi-pci", bus PCI, alias "virtio-scsi"
name "scsi-disk", bus SCSI, desc "virtual SCSI disk or CD-ROM (legacy)"
name "scsi-block", bus SCSI, desc "SCSI block device passthrough"
name "scsi-cd", bus SCSI, desc "virtual SCSI CD-ROM"
name "scsi-hd", bus SCSI, desc "virtual SCSI disk"
name "scsi-generic", bus SCSI, desc "pass through generic scsi device (/dev/sg*)"
RHEL7.0
Virtio-scsi device(Added sc390 and am53c974, will support on rhel7.0?)
#/usr/libexec/qemu-kvm -device ? 2>&1 | grep -i scsi
name "scsi-hd", bus SCSI, desc "virtual SCSI disk"
name "scsi-block", bus SCSI, desc "SCSI block device passthrough"
name "scsi-generic", bus SCSI, desc "pass through generic scsi device (/dev/sg*)"
name "scsi-disk", bus SCSI, desc "virtual SCSI disk or CD-ROM (legacy)"
name "scsi-cd", bus SCSI, desc "virtual SCSI CD-ROM"
name "dc390", bus PCI, desc "Tekram DC-390 SCSI adapter"
name "am53c974", bus PCI, desc "AMD Am53c974 PCscsi-PCI SCSI adapter"
name "virtio-scsi-pci", bus PCI
Expected results:
Disable or remove virtio scsi devices that qemu-kvm does not support
Additional info:
Comment 1Richard W.M. Jones
2013-01-29 08:32:24 UTC
I don't think the summary of this bug can be right. It
sounds like you want to disable virtio-scsi, but it seems
really you want to disable some emulated SCSI devices
(dc390 & am53c974).
Note that we absolutely need virtio-scsi in RHEL 7!
(In reply to comment #1)
> I don't think the summary of this bug can be right. It
> sounds like you want to disable virtio-scsi, but it seems
> really you want to disable some emulated SCSI devices
> (dc390 & am53c974).
You are right. My intention is disable some emulated SCSI devices
(dc390 & am53c974) if qemu-kvm do not support on RHEL7. Thanks for pointing out.
>
> Note that we absolutely need virtio-scsi in RHEL 7!
Got it.
Comment 4Miroslav Rezanina
2013-04-23 09:42:27 UTC
Fixed in qemu-kvm-1.4.0-3.el7.x86_64.rpm
Comment 6Markus Armbruster
2013-08-22 14:43:18 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 ? 2>&1 |grep -i scsi
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 "virtio-scsi-device", bus virtio-bus
name "virtio-scsi-pci", bus PCI
----
Based on above test and comments 3, this bug have been verified.
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.