Bug 1791590

QEMU has been recently split into sub-components and as a one-time operation to avoid breakage of tools, we are setting the QEMU sub-component of this BZ to "General". Please review and change the sub-component if necessary the next time you review this BZ. Thanks

==Steps

==Verified with qemu-kvm-4.2.0-11.module+el8.2.0+5837+4c1442ec.x86_64

1,Boot win2019 guest
/usr/libexec/qemu-kvm \
-name 'avocado-vt-vm1'  \
-sandbox on  \
-machine q35 \
-device pcie-root-port,id=pcie-root-port-0,multifunction=on,bus=pcie.0,addr=0x1,chassis=1 \
-device pcie-pci-bridge,id=pcie-pci-bridge-0,addr=0x0,bus=pcie-root-port-0  \
-nodefaults \
-device VGA,bus=pcie.0,addr=0x2 \
-m 7168  \
-smp 6,maxcpus=6,cores=3,threads=1,dies=1,sockets=2  \
-cpu 'Haswell-noTSX',hv_stimer,hv_synic,hv_vpindex,hv_reset,hv_relaxed,hv_spinlocks=0x1fff,hv_vapic,hv_time,hv-tlbflush,+kvm_pv_unhalt \
-device pcie-root-port,id=pcie-root-port-1,port=0x1,addr=0x1.0x1,bus=pcie.0,chassis=2 \
-device qemu-xhci,id=usb1,bus=pcie-root-port-1,addr=0x0 \
-device pcie-root-port,id=pcie-root-port-2,port=0x2,addr=0x1.0x2,bus=pcie.0,chassis=3 \
-device virtio-scsi-pci,id=virtio_scsi_pci0,bus=pcie-root-port-2,addr=0x0 \
-drive id=drive_image1,if=none,snapshot=off,aio=threads,cache=none,format=qcow2,file=/home/kvm_autotest_root/images/win2019-64-virtio-scsi.qcow2 \
-device scsi-hd,id=image1,drive=drive_image1 \
-device pcie-root-port,id=pcie-root-port-3,port=0x3,addr=0x1.0x3,bus=pcie.0,chassis=4 \
-device virtio-net-pci,mac=9a:f5:70:ac:4a:10,id=net1,netdev=hostnet1,bus=pcie-root-port-3,addr=0x0  \
-netdev tap,id=hostnet1,vhost=on \
-drive id=drive_cd1,if=none,snapshot=off,aio=threads,cache=none,media=cdrom,file=/home/kvm_autotest_root/iso/windows/winutils.iso \
-device scsi-cd,id=cd1,drive=drive_cd1 \
-device usb-tablet,id=usb-tablet1,bus=usb1.0,port=1  \
-vnc :0  \
-rtc base=localtime,clock=host,driftfix=slew  \
-boot menu=off,order=cdn,once=c,strict=off \
-enable-kvm \
-device pcie-root-port,id=pcie_extra_root_port_0,multifunction=on,bus=pcie.0,addr=0x3,chassis=5 \
-monitor stdio \
-qmp tcp:0:5555,server,nowait \

2. From qmp monitor, unplug the virtio-net-pci device.
# telnet 10.73.224.38 5555
Trying 10.73.224.38...
Connected to 10.73.224.38.
Escape character is '^]'.
{"QMP": {"version": {"qemu": {"micro": 0, "minor": 2, "major": 4}, "package": "qemu-kvm-4.2.0-11.module+el8.2.0+5837+4c1442ec"}, "capabilities": ["oob"]}}
{"execute":"qmp_capabilities"}
{"return": {}}
{"execute":"device_del","arguments":{"id":"net1"}}
{"return": {}}
{"timestamp": {"seconds": 1582507617, "microseconds": 11143}, "event": "DEVICE_DELETED", "data": {"path": "/machine/peripheral/net1/virtio-backend"}}
{"timestamp": {"seconds": 1582507617, "microseconds": 64050}, "event": "DEVICE_DELETED", "data": {"device": "net1", "path": "/machine/peripheral/net1"}}
 {"execute":"netdev_del","arguments":{"id":"hostnet1"}}
{"return": {}}
3.Check the "event": "DEVICE_DELETED" logs, there are two delete info.

So this bug has been fixed very well in qemu-kvm-4.2.0-11.module+el8.2.0+5837+4c1442ec.x86_64,move to 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/RHBA-2020:2017