Red Hat Bugzilla – Bug 1392328
Disable new devices in QEMU 2.8 (x86_64)
Last modified: 2017-08-01 23:35:00 EDT
Disable new devices introduced with rebase to QEMU 2.7: - qemu,register - vfio-pci-igd-lpc-bridge
We rebased to 2.8 instead of 2.7 so we need to remove devices added in 2.8 too. List of new devices: - floppy - vhost-vsock-device - vhost-vsock-pci - virtio-crypto-device - virtio-crypto-pci - amd-iommu - AMDVI-PCI - loader - or-irq vhost-vsock-device (and vhost-vsock-pci) are requested by bz #1291284. floppy device is qomified floppy device, we want to keep the functionality without allowing command-line access.
Fix included in qemu-kvm-rhev-2.8.0-5.el7
Steps to verify this bug: 1. re-compile source code and compare build log on unfixed and fixed version or-irq.o, generic-loader.o, amd_iommu.o, virtio-crypto-pci.o, register.o was observed on qemu-kvm-rhev-2.8.0-3.el7.x86_64 but on qemu-kvm-rhev-2.9.0-7.el7 otherwise. 2. check output of -device ? on qemu-kvm-rhev-2.8.0-3.el7.x86_64 Storage devices: name "floppy", bus floppy-bus, desc "virtual floppy drive" Network devices: name "virtio-crypto-device", bus virtio-bus name "virtio-crypto-pci", bus PCI Uncategorized devices: name "amd-iommu", bus System name "AMDVI-PCI", bus PCI name "loader", desc "Generic Loader" name "or-irq" name "qemu,register" name "vfio-pci-igd-lpc-bridge", bus PCI, desc "VFIO dummy ISA/LPC bridge for IGD assignment" on qemu-kvm-rhev-2.9.0-7.el7, neither of above was observed. Setting VERIFIED.
Since the problem described in this bug report should be resolved in a recent advisory, it has been closed with a resolution of ERRATA. For information on the advisory, and where to find the updated files, follow the link below. If the solution does not work for you, open a new bug report. https://access.redhat.com/errata/RHSA-2017:2392