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Bug 1001180 - Disable or remove devices pci-serial-2x, pci-serial-4x
Summary: Disable or remove devices pci-serial-2x, pci-serial-4x
Keywords:
Status: CLOSED CURRENTRELEASE
Alias: None
Product: Red Hat Enterprise Linux 7
Classification: Red Hat
Component: qemu-kvm
Version: 7.0
Hardware: Unspecified
OS: Unspecified
unspecified
unspecified
Target Milestone: rc
: ---
Assignee: Markus Armbruster
QA Contact: Virtualization Bugs
URL:
Whiteboard:
Depends On: 1001216
Blocks: 720747
TreeView+ depends on / blocked
 
Reported: 2013-08-26 15:52 UTC by Markus Armbruster
Modified: 2014-06-18 03:35 UTC (History)
9 users (show)

Fixed In Version: qemu-kvm-1.5.3-15.el7
Doc Type: Bug Fix
Doc Text:
Clone Of:
Environment:
Last Closed: 2014-06-13 10:51:20 UTC
Target Upstream Version:
Embargoed:

Attachments (Terms of Use)

Description Markus Armbruster 2013-08-26 15:52:30 UTC 
The PCI serial devices can be hot-plugged, unlike the ISA ones.  We don't have libvirt plumbing, yet (bug 998813).  Windows needs .INF files to make them work.  Since we still don't have one for the multi-port devices, disable them.

How reproducible:
Always

Steps to Reproduce:
1. qemu-kvm -nodefaults -display none -monitor stdio -S -chardev null,id=s1 -chardev null,id=s2 -device pci-serial-2x,chardev1=s1,chardev2=s2
2. qemu-kvm -nodefaults -display none -monitor stdio -S -chardev null,id=s1 -chardev null,id=s2 -chardev null,id=s3 -chardev null,id=s4 -device pci-serial-4x,chardev1=s1,chardev2=s2,chardev3=s3,chardev4=s4

Actual results:
-device pci-serial-2x and -device pci-serial-4x are both accepted

Expected results:
They're both rejected, just like -device nonexistant
Comment 2 Miroslav Rezanina 2013-11-07 08:25:00 UTC 
Fix included in qemu-kvm-1.5.3-15.el7
Comment 4 Shaolong Hu 2013-11-26 02:50:41 UTC 
Verified on qemu-kvm-1.5.3-19.el7.x86_64:

# /usr/libexec/qemu-kvm -nodefaults -display none -monitor stdio -S -chardev null,id=s1 -chardev null,id=s2 -device pci-serial-2x,chardev1=s1,chardev2=s2
QEMU 1.5.3 monitor - type 'help' for more information
(qemu) qemu-kvm: -device pci-serial-2x,chardev1=s1,chardev2=s2: Parameter 'driver' expects device type

# /usr/libexec/qemu-kvm -nodefaults -display none -monitor stdio -S -chardev null,id=s1 -chardev null,id=s2 -chardev null,id=s3 -chardev null,id=s4 -device pci-serial-4x,chardev1=s1,chardev2=s2,chardev3=s3,chardev4=s4
QEMU 1.5.3 monitor - type 'help' for more information
(qemu) qemu-kvm: -device pci-serial-4x,chardev1=s1,chardev2=s2,chardev3=s3,chardev4=s4: Parameter 'driver' expects device type

# /usr/libexec/qemu-kvm -device help 2>&1 | grep pci
name "pci-bridge", bus PCI, desc "Standard PCI Bridge"
name "virtio-blk-pci", bus PCI, alias "virtio-blk"
name "virtio-scsi-pci", bus PCI
name "virtio-net-pci", bus PCI, alias "virtio-net"
name "pci-serial", bus PCI
name "virtio-serial-pci", bus PCI, alias "virtio-serial"
name "kvm-pci-assign", bus PCI, alias "pci-assign", desc "KVM-based PCI passthrough"
name "pci-testdev", bus PCI, desc "PCI Test Device"
name "vfio-pci", bus PCI, desc "VFIO-based PCI device assignment"
name "virtio-balloon-pci", bus PCI, alias "virtio-balloon"
name "virtio-rng-pci", bus PCI
Comment 5 Ludek Smid 2014-06-13 10:51:20 UTC 
This request was resolved in Red Hat Enterprise Linux 7.0.

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