1. Boot vm with the passthrough multipath device
/usr/libexec/qemu-kvm \
 -name node1 \
 -machine q35 \
 -nodefaults \
 -device VGA,bus=pcie.0,addr=0x1 \
 -device pvpanic,ioport=0x505,id=idZcGD6F \
 -device pcie-root-port,id=pcie-root-port-2,slot=2,chassis=2,addr=0x2,bus=pcie.0 \
 -device qemu-xhci,id=usb1,bus=pcie-root-port-2,addr=0x0 \
 -device pcie-root-port,id=pcie-root-port-3,slot=3,chassis=3,addr=0x3,bus=pcie.0 \
 -device pcie-root-port,id=pcie-root-port-4,slot=4,chassis=4,addr=0x4,bus=pcie.0 \
 -device pcie-root-port,id=pcie-root-port-5,slot=5,chassis=5,addr=0x5,bus=pcie.0 \
 -device pcie-root-port,id=pcie-root-port-6,slot=6,chassis=6,addr=0x6,bus=pcie.0 \
 -device virtio-scsi-pci,id=scsi0,bus=pcie-root-port-3,addr=0x0 \
 -device virtio-scsi-pci,id=scsi1,bus=pcie-root-port-4,addr=0x0,max_sectors=512 \
 -object pr-manager-helper,id=helper0,path=/var/run/qemu-pr-helper.sock \
 -blockdev driver=file,node-name=file_disk,cache.direct=off,cache.no-flush=on,filename=/home/kvm_autotest_root/images/rhel960-64-virtio-scsi.qcow2 \
 -blockdev driver=qcow2,node-name=protocol_disk,file=file_disk \
 -device scsi-hd,drive=protocol_disk,bus=scsi0.0,serial=node1,id=os_disk,bootindex=1 \
 -blockdev driver=host_device,filename=/dev/mapper/mpathd,cache.direct=on,node-name=drive_disk,pr-manager=helper0 \
 -blockdev driver=raw,node-name=host_disk,file=drive_disk \
 -device scsi-block,bus=scsi1.0,drive=host_disk,id=scsi0-0-0-0,bootindex=2,werror=stop,rerror=stop \
 -device virtio-net-pci,mac=9a:95:96:97:98:91,id=idKSMZST,netdev=idWCSiU5,bus=pcie-root-port-6,addr=0x0 \
 -netdev tap,id=idWCSiU5,script=/etc/qemu-ifup,vhost=on \
 -m 12G \
 -cpu host,vmx,+kvm_pv_unhalt \
 -smp 8,maxcpus=8,cores=4,threads=1,sockets=2 \
 -device usb-tablet,id=usb-tablet1,bus=usb1.0,port=1 \
 -vnc :7 \
 -rtc base=localtime,clock=host,driftfix=slew \
 -boot order=cdn,once=c,menu=off,strict=off \
 -enable-kvm \
 -monitor stdio \
 -chardev socket,id=socket-serial,path=/var/tmp/socket-serial,logfile=/var/tmp/file-serial.log,mux=on,server=on,wait=off \
 -serial chardev:socket-serial \
 -chardev file,path=/var/tmp/file-bios.log,id=file-bios \
 -device isa-debugcon,chardev=file-bios,iobase=0x402 \
 -chardev socket,id=socket-qmp,path=/var/tmp/socket-qmp,logfile=/var/tmp/file-qmp.log,mux=on,server=on,wait=off \
 -mon chardev=socket-qmp,mode=control \
 -chardev socket,id=socket-hmp,path=/var/tmp/socket-hmp,logfile=/var/tmp/file-hmp.log,mux=on,server=on,wait=off \
 -mon chardev=socket-hmp,mode=readline



 2. Run the switch script on the host side
./multipath-switch.sh -c2 -m mpathd -i2 -a


 3. Run S3-PR integration test on the disk in the guest

./wloop.sh 1 10000 1 0 "./pr_test.sh -c9 -d /dev/sdb -i2 -l logs/xdell1-pr.log";


pected results