Red Hat Bugzilla – Bug 1482851
Requires for the seabios version that support vIOMMU of virtio [rhel-7.4.z]
Last modified: 2017-09-05 07:52:57 EDT
This bug has been copied from bug #1475634 and has been proposed to be backported to 7.4 z-stream (EUS).
Fix included in qemu-kvm-rhev-2.9.0-16.el7_4.5
Verified component version as below: qemu-kvm-rhev-2.9.0-16.el7_4.5.x86_64 seabios-1.10.2-3.el7_4.1.x86_64 3.10.0-693.1.1.el7.x86_64 steps: 1.qemu-kvm cli: /usr/libexec/qemu-kvm -M pc -cpu IvyBridge -enable-kvm -m 2G -smp 4 \ -device virtio-blk-pci,drive=system1,disable-legacy=on,disable-modern=off,id=boot_disk,bootindex=1,iommu_platform=on,ats=on -drive file=/root/rhel74-bk.qcow2,format=qcow2,if=none,id=system1 \ -vnc :1 -monitor stdio -device virtio-net-pci,netdev=hostnet1,id=net1,mac=52:54:00:7e:af:e6 -netdev tap,id=hostnet1,vhost=on -device virtio-serial-pci,id=virtio-serial0,bus=pci.0,addr=0x6 \ -chardev socket,path=/tmp/qga.sock,server,nowait,id=qga0 -device virtserialport,bus=virtio-serial0.0,chardev=qga0,id=qemu-ga0,name=org.qemu.guest_agent.0 2. Add "iommu=pt intel_iommu=on" to host kernel line 3. Add "intel_iommu=on" guest kernel line result: Guest works well. Hi Jason, According to test result as above. Can QE verify this bug? or need to test the other device. e.g virtio-net-pci, virtio-serial-pci..
I think you need focus on the dependency. E.g check qemu-kvm-rhev-2.9.0-16.el7_4.5 depends on seabios-bin >= 1.10.2-3.el7_4.1 and ipxe-roms-qemu >= 20170123-1.git4e85b27.el7_4.1. Thanks
(In reply to jason wang from comment #5) > I think you need focus on the dependency. E.g check > qemu-kvm-rhev-2.9.0-16.el7_4.5 depends on seabios-bin >= 1.10.2-3.el7_4.1 > and ipxe-roms-qemu >= 20170123-1.git4e85b27.el7_4.1. > > Thanks Thanks Jason, I have checked this dependency when installing qemu-kvm-rhev-2.9.0-16.el7_4.5. error: Failed dependencies: ipxe-roms-qemu >= 20170123-1.git4e85b27.el7_4.1 is needed by qemu-kvm-rhev-10:2.9.0-16.el7_4.5.x86_64 seabios-bin >= 1.10.2-3.el7_4.1 is needed by qemu-kvm-rhev-10:2.9.0-16.el7_4.5.x86_64 seavgabios-bin >= 1.10.2-3.el7_4.1 is needed by qemu-kvm-rhev-10:2.9.0-16.el7_4.5.x86_64 sgabios-bin is needed by qemu-kvm-rhev-10:2.9.0-16.el7_4.5.x86_64 So,This bug is fixed.
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-2017:2628