Updated qemu-kvm-rhev packages that fix several bugs and add variousenhancements are now available for Red Hat Virtualization Hypervisor 7.
Kernel-based Virtual Machine (KVM) is a full virtualization solution for Linuxon AMD64 and Intel 64 systems.

The qemu-kvm-rhev package provides the user-spacecomponent for running virtual machines using KVM in environments managed by RedHat Enterprise Virtualization Manager.The qemu-kvm-rhev packages have been upgraded to upstream version 2.6.0, whichprovides a number of bug fixes and enhancements over the previous version.(BZ#1289417)In addition, this update adds the following enhancements:* Support for the XSAVES, XSAVEC, and XRSTORS instructions in Intel Xeon v5guests has been added to the KVM hypervisor and kernel code, and to the libvirtAPI. (BZ#1327589)* This update adds support for removing virtual CPUs (vCPUs) from running KVMguest virtual machines on AMD64 and Intel 64 hosts, also referred to as the vCPUhot unplug.
In combination with the vCPU hot plug, this enables users todynamically allocate resources to guests without the need to shut them down.(BZ#1087672)* It is now possible to hot plug vCPUs to guest virtual machines running on IBMSystem z hosts. (BZ#1172917)* This update enables the post-copy guest migration feature for KVM guests. Whenused, post-copy migration immediately pauses guest vCPUs on the source host,transfers only a minimum of memory pages, and activates the guest vCPUs on thedestination host.

This significantly reduces the downtime of the migratedvirtual machine, but the migration cannot be reverted while it is in progress.In addition, post-copy migration is guaranteed to finish regardless of howrapidly the memory pages of the source guest change, so it is optimal formigrating guests in heavy continuous use. (BZ#830966)* With this update, Non-Volatile Dual In-line Memory Module (NVDIMM) persistentmemory is supported and can be assigned to guest virtual machines. (BZ#1270345)* This update adds libvirt support for Intel e1000e network interface controllerfor PCI-Express.

This enables more effective use of virtual networks on recentIntel machine models and operating systems. (BZ#1343092)* With this update, it is possible to use TLS encryption with the TransmissionControl Protocol (TCP) back end for character devices.

As a result, using theTCP back end is more secure and efficient. (BZ#1300773)Users of qemu-kvm-rhev are advised to upgrade to these updated packages, whichfix these bugs and add these enhancements.
Before applying this update, make sure all previously released erratarelevant to your system have been applied.For details on how to apply this update, refer to:https://access.redhat.com/articles/11258
1055427 – [Q35] core dump when boot with 128 virtio-blk-pci data disks via PCIe-switch1070027 – qemu crash during iofuzz test: qemu: hw/usb/core.c:707: usb_ep_get: Assertion `pid == 0x69 || pid == 0xe1′ failed.1082559 – udisksd[2008]: Error probing device: Error sending ATA command IDENTIFY PACKET DEVICE to /dev/sr01114962 – – drive-mirror with “mode”:”existing” fails poorly if destination is not large enough1124815 – fail to detect the new cdrom device in guest after “change” it to anther iso (scsi-cd only)1126666 – qemu-kvm does not quit when booting guest w/ 161 vcpus and “-no-kvm”1138511 – win2012r2 guest bsod(DRIVER_POWER_STATE_FAILURE) when doing restart guest1147343 – qemu-img create -f qcow2 overlay -b ssh://xen/ segfaults on RHEL 71153951 – Qemu core dumped when guest reboot through guest-agent command [via isa-serial].1154115 – [RFE] qemu chardev socket should support TLS and auth1158310 – Error “sr 0:0:1:0: rejecting I/O to offline device” when eject cdrom1160964 – can boot guest successfully inside qemu if maxcpus don’t match topology in -smp1161582 – Should improve error info when can’t find backing file for snapshot1166031 – Windows and Linux guest can not receive data from host via virtserialport via Unix socket backend1177309 – Guest using rbd based image as disk failed to start when sandbox was enabled1184125 – -cpu host: cache CPUID passthrough may not make sense depending on VM CPU topology1202788 – There is no error prompt when set the io throttling parameters FOO_max without FOO and iops_size without iops1202822 – QEMU SMRAM support for proper secure boot using OVMF1209708 – floppy fail to be accessible(Location is not available) after change from none1210221 – Netperf UDP_STREAM Lost most of the packets on spapr-vlan device1212317 – floppy device can not be detected in the win8-64 guests under OVMF1220252 – qemu-kvm aborts with -chardev udp,…1221023 – the I/O throttling properties of cdrom will be changed to be none after change to a new cdrom1232914 – preserve sparseness for drive mirror operations over distributed storage – qemu1235499 – leaked_storage: Variable “local_err” going out of scope leaks the storage it points to1235580 – RFE: Enable the intel-iommu device in QEMU1235732 – spice-gtk shows outdated screen state after migration [qemu-kvm-rhev]1238532 – qemu needs a better warning when the qemu-ifup script is busy1238574 – qemu-kvm does not expose expected cpu topology to guest when wrong cpu topology is defined.1240310 – {“execute”:”query-block”} should not show the cdrom device that have ejected1240497 – qemu-kvm-rhev: dump-guest-memory creates invalid header with format kdump-{zlib,lzo,snappy} on ppc641243548 – AIO is processing only 1 request, even if >1 requests in virtio1244064 – the guest agent will always stay in ‘disconnected’ status after wakeup a guest which configured 2 cpus from ‘pmsuspended’ status1245864 – qemu quit when rebooting guest which hotplug memory >=13 times1247933 – RFE: qemu-kvm-rhev: support multiple volume hosts for gluster volumes1248406 – Numa node assignation info is not consistency between hmp and in guest1248758 – match the OEM ID and OEM Table ID fields of the FADT and the RSDT to those of the SLIC1251379 – [RHEL-7.2] Package is 100% lost when ping from host to Win2012r2 guest with 64000 size1251943 – “ENOSPAC” caused iscsi error message flood during install guest1257103 – test case 033 099 of qemu-iotests failed for vhdx1259440 – cpu: Improve error message when using an incompatible model1261726 – virsh hotplug/unplug host usb device disconnects spice1261797 – contents of MSR_TSC_AUX are not migrated1262784 – quit qemu-kvm during boot with data plane enabled cause segmentation fault1263591 – Guest network works abnormally(ping out or netperf test failed) when use multi queue of the virtio-net-pci macvtap1263916 – boot guest with ‘-snapshot’, base file is deleted after block-commit and live snapshot1263986 – qemu crash while start a guest with invalid vnc socket path1264726 – During block-commit, stop guest, qemu will be unresponsive until commit job finished1264728 – Allow EEH on spapr-pci-host-bridge1265179 – With dataplane, when migrate to remote NBD disk after drive-mirror, qemu core dump ( both src host and des host)1265196 – posix_fallocate emulation on NFS fails with Bad file descriptor if fd is opened O_WRONLY1265576 – hugepage could not be used inside guest if start the guest with NUMA supported huge pages1270144 – qemu process exit after hot-plug a memory device which guest use 1G hugepages1272759 – [PCIe] Make virtio devices pci-express on Q35 machines1272939 – [PCIe] Add multi-root support for Q351273063 – Vlan table display repeat four times in qmp when queues=41273196 – Q35 assigned devices report Code 10 on Win7 & Win8.1 guests in default config1273689 – Creating internal snapshot fails with data-plane1273717 – Host lost usb device file if guest quit as soon as start with “usb-host” option1273750 – Camera stops work after remote-viewer re-connection [qemu-kvm-rhev]1275230 – memory unplug triggers BUG_ON: kernel BUG at mm/memory_hotplug.c:703!1276032 – Crash on QMP input exceeding limits1277705 – Fix handling of thin write correctly in active-commit and drive-mirror (including qemu-img commit)1277922 – Aborted (core dumped) for “qemu-kvm: block.c:3332: bdrv_aligned_pwritev: Assertion `!qiov || bytes == qiov->size’ failed.” after ‘lvextend’ the guest primary image and ‘cont’ the installing guest for the 2nd time1278447 – ceph.conf properties override qemu’s command-line properties1278894 – cold-plugged DIMM can’t be unplugged on the first unplug request1282833 – [PPC64LE] Guest freezes if qemu allocates smaller page table than requested1285595 – vubr coredumpd during repeatedly load/unload virtio-net driver inside guest.1286492 – vhost-user interface cannot get ip if host is a numa machine1286506 – qemu-kvm core dumped when booting qemu-kvm process with queues=0 and vhost-user1289285 – Live Migration dynamic cpu throttling for auto-convergence (qemu-kvm-rhev)1289417 – Rebase to QEMU 2.61290150 – Include example kvm.conf with nested options commented out1290683 – [abrt] qemu-img: get_block_status(): qemu-img killed by SIGABRT1291209 – The cpu model that could be boot in command line does not match with host /proc/cpuinfo1291979 – [ppc64le] Virtio-input support – qemu-kvm-rhev1295422 – fix ivshmem segfault with msi=off option1295907 – [RFE] add virtio-gpu and virtio-vga support1296800 – -mem-prealloc option does not take effect when no huge page is allocated1297334 – Guest should failed to boot if set iops,bps to negative number1297748 – [RFE] Allocate guard pages after guest RAM to protect against buffer overflows1298027 – qemu-img compare is unnessarily slow on raw files1298886 – [abrt] qemu-img: get_block_status(): qemu-img killed by SIGABRT1299030 – drmgr with invalid value in guest crashes qemu1300773 – RFE: add support for native TLS encryption on chardev TCP transports1301019 – RFE: add support for LUKS disk encryption format driver w/ RBD, iSCSI, and qcow21301057 – RFE: add support for securely passing passwords to QEMU block drivers1303181 – qemu 2.1-2.4 crashes with segfault in phys_section_destroy1316368 – qmp no response while start/cancel block job repeatly1317977 – qemu-kvm-rhev supports a lot of CPU models1319400 – live merge – qemu-kvm hangs in aio_bh_poll1319673 – qemu-kvm core dump with “-M rhel6.6.0” and “-cpu Westmere”1320473 – virtio-pci doesn’t reset VQ correctly at device reset1320476 – Failed to upgrade qemu-kvm-tools-rhev from 2.3.0 to 2.5.01320714 – [RFE] Allow the libgfapi logging level to be controlled.1322713 – Guest Call Trace when system_reset on hmp launch guest with usb-storage device.1323273 – migration: i82801b11 bridge broken (~q35)1323294 – AVX-2 migration optimisation1323976 – PCI: Add 64-bit MMIO support to PXB devices1325991 – qemu NBD server rejects clients that use unknown NBD_OPT_*1328020 – qemu-kvm-rhev gets SEGV when try to attach a disk image in a nfs pool to a vm with insufficient nfs authority1329526 – seabios can not recognize virtio 1.0 virtual block1329641 – [RFE]Ceph/RBD block driver for qemu-kvm : change error_setg() to error_setg_errno()1330916 – image cannot be fully allocated via qemu-img with sparse_size specified as 01333282 – Disable new devices in QEMU 2.61333299 – RFE: Enable nvdimm device1333318 – ivshmem-plain support in RHEL 7.31335705 – ‘QEMU 2.5.94 monitor’ is used for qemu-kvm-rhev-2.6.0-1.el7.x86_641335720 – watchdog action ‘inject-nmi’ takes no effect1336296 – failed dependencies on SLOF1336310 – virtio-scsi data-plane does not support block management QMP commands1336517 – Disable hv-vpindex, hv-runtime, hv-reset, hv-synic & hv-stimer enlightenment for Windows1336649 – [RHEL.7.3] Guest will not boot up when specify aio=native and snapshot=on together1336659 – Core dump when re-launch guest with encrypted block device1336705 – Drive mirror with option granularity fail1337033 – kvm_stat AttributeError: ‘ArchPPC’ object has no attribute ‘exit_reasons’1337100 – redhat_drive_add should report error to qmp if it fails to initialize1337917 – qemu-kvm-rhev: Only ship /usr/share/qemu-kvm/sgabios.bin on x861338043 – scsi-block fix – receive the right SCSI status on reads and writes1338638 – Migration fails after ejecting the cdrom in the guest1338755 – qemu-kvm-rhev doesn’t reload udev rules before triggering for kvm device1339196 – qemu-kvm (on target host) killed by SIGABRT when migrating a guest from AMD host to Intel host.1339467 – User cannot create windows 7 virtual machine in rhevm – Core dump when do ‘block-job-complete’ after ‘drive-mirror’1341492 – QEMU on POWER does not support the PowerISA 2.07 compatibility mode1341531 – qemu gets SIGSEGV when hot-plug a scsi hostdev device with duplicate target address1342015 – Migration: Fixup machine types and HW_COMPAT (stage 1b)1342330 – There is no error prompt when set the io throttling parameters iops_size without iops1342999 – ‘cache=x’ cannot work with empty cdrom1343021 – Core dump when quit from HMP after migration finished1343092 – RFE: Integrate e1000e implementation in downstream QEMU1343891 – Disable spapr-rng device in downstream qemu 2.61344259 – Q35: Device assignment to PCIe ports1344269 – Migration: Fixup machine types and HW_COMPAT (stage 2a)1346237 – win 10.x86_64 guest coredump when execute avocado test case: win_virtio_update.install_driver1346627 – qemu discards EEH ioctl results1346688 – [Q35] vfio read-only SR-IOV capability confuses OVMF1346920 – vIOMMU: prevent unsupported configurations with vfio1346976 – Regression from CVE-2016-3712: windows installer fails to start [rhel-7.3]1347077 – vhost-user: A socket file is not deleted after VM’s port is detached.1347402 – vgabios-virtio.bin should be symlinked in qemu-kvm-rhev1347498 – [ppc64le] Guest can’t boot up with hugepage memdev1348763 – Fix dirty marking with block discard requests1350196 – Enable IOMMU device with -device intel-iommu1350735 – memory locking limit for regular users is too low to launch guests through libvirt1351409 – When hotplug memory, guest will shutdown as Insufficient free host memory pages available to allocate1351442 – “TSC frequency mismatch” warning message after migration1352799 – Client information from hmp doesn’t vanish after client disconnect when using vnc display1352860 – Migration is failed from host RHEL7.2.z to host RHEL7.3 with “-M pc-i440fx-rhel7.0.0 -device nec-usb-xhci”1352865 – Boot guest with two virtio-scsi-pci devices and spice, QEMU core dump after executing ‘(qemu)__com.redhat_drive_add’1353070 – Migration is failed from host RHEL7.2.z to host RHEL7.3 with “-M rhel6.6.0 -device e1000-82540em”1353180 – 7.3->7.2 migration: qemu-kvm: usbredirparser: error unserialize caps mismatch1353801 – The default io throttling group name is null, which makes all throttled disks with a default group name in the same group1354090 – Boot guest with vhostuser server mode, QEMU prompt ‘Segmentation fault’ after executing ‘(qemu)system_powerdown’1354341 – guest hang after cancel migration then migrate again1354443 – /usr/libexec/qemu-kvm: undefined symbol: libusb_free_ss_endpoint_companion_descriptor1355665 – Suggest to limit the burst value to be not less than the throttle value1355683 – qemu core dump when do postcopy migration again after canceling a migration in postcopy phase1355704 – spice: core dump when ‘quit’1355902 – vhost-user reconnect misc fixes and improvements1355927 – qemu SIGABRT when doing inactive blockcommit with external system checkpoint snapshot1355982 – qemu will abort after type two”system_reset” after the guest poweroff1356376 – [Q35] Nic which passthrough from host didn’t be found in guest when enable multifunction1357202 – [Q35] S3 should be disabled by default for the pc-q35-rhel7.3.0 machine type1358141 – Removal of the “x-” prefix for dynamic cpu throttling1358653 – [RFE] Interrupt remapping support for Intel vIOMMUs1359655 – Qemu crashes when connecting to a guest started with “-vnc none” by virt-viewer1360225 – Can’t extract guest memory dump from qemu core1360612 – Memory leak on incomplete JSON parse1360664 – [virtio] Update default virtio-1 behavior for virtio devices1361205 – nvdimm: fix memory leak in error code path1361443 – ppc64le: Introduce stable cpu_index for cpu hotplugging1362019 – Crashes when using query-hotpluggable-cpus with pseries-rhel7.2.0 machine type1363679 – RHEL guest hangs with kernel-irqchip=off and smp>11363812 – qemu-kvm-rhev: -cpu POWER8 no longer works1363998 – Live migration via a compressed file causes the guest desktop to freeze1364035 – [ppc64le][VFIO]Qemu complains:vfio_dma_map(0x10033d3a980, 0x1f34f0000, 0x10000, 0x3fff9a6d0000) = -6 (No such device or address)1365613 – [PCI] The default MMIO range reserved by firmware for PCI bridges is not enough to hotplug virtio-1 devices1365747 – Migrate guest(win10) after hot plug/unplug memory balloon device [Missing section footer for 0000:00:07.0/virtio-net]1366471 – QEMU prints “usb-kbd: warning: key event queue full” when pressing keys during SLOF boot1368032 – kernel crash after hot remove virtio-gpu device1368153 – Please hide fw_cfg device in windows guest in order to make svvp test pass1370005 – Fail to get network device info(eth0) in guest with virtio-net-pci/vhostforce1370703 – [Balloon] Whql Job “Commom scenario stress with IO” failed on 2008-32/641371211 – Qemu 2.6 won’t boot guest with 2 meg hugepages1372763 – RHSA-2016-1756 breaks migration of instances1373802 – Network can’t recover when trigger EEH one time1374251 – qemu-kvm-rhev core dumped when enabling virtio-scsi “data plane” and executing “eject”1375677 – Crash when performing VNC websockets handshake1377920 – Guest fails reboot and causes kernel-panic1378788 – Race condition during virtio-blk dataplane stop triggers “Virtqueue size exceeded”557939 – QMP: Full introspection support878717 – Vncserver can’t only listen on one kind of protocl (IPV4 or IPv6) at same time887844 – AHCI does not support restarting requests (i.e. rerror=stop and werror=stop/enospc)953062 – RFE: AHCI live migration970551 – failed pci-serial hotplug leaves the chardev busy995415 – passthrough (scsi-block) disk with “readonly=on” can be writed in guest

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