Bug 1968234

Description of problem:
On Windows 2022 guest, the whql job "Flush Test" failed with error "Caught std::exception: invalid stoi argument". Hit this issue for both vioscsi and viostor driver.

Used latest HLK for Windows Server 2022:
  Manager Version: 2.7.3522.0
  Controller Version: 10.1.20348.20348
  Studio Version: 10.0.20348.1


Version-Release number of selected component (if applicable):
Guest os: Windows 2022
kernel-4.18.0-310.el8.x86_64
qemu-kvm-6.0.0-18.module+el8.5.0+11243+5269aaa1.x86_64
seabios-bin-1.14.0-1.module+el8.4.0+8855+a9e237a9.noarch
virtio-win-prewhql-199

How reproducible:
100%

Steps to Reproduce:
1. Boot Windows 2022 server up:
/usr/libexec/qemu-kvm -name 199SCS226435CAB -enable-kvm -m 6G -smp 8 -uuid 47f7b3a9-0072-4991-bc68-f2dbba29c2c5 -nodefaults -cpu Skylake-Server,hv_stimer,hv_synic,hv_time,hv_vpindex,hv_relaxed,hv_spinlocks=0x1fff,hv_vapic,hv_frequencies,hv_runtime,hv_tlbflush,hv_reenlightenment,hv_stimer_direct,hv_ipi -chardev socket,id=charmonitor,path=/tmp/199SCS226435CAB,server,nowait -mon chardev=charmonitor,id=monitor,mode=control -rtc base=localtime,driftfix=slew -boot order=cd,menu=on -device piix3-usb-uhci,id=usb -blockdev driver=file,cache.direct=off,cache.no-flush=on,filename=199SCS226435CAB,node-name=my_file -blockdev driver=raw,node-name=my,file=my_file -device ide-hd,drive=my,id=ide0-0-0,bus=ide.0,unit=0 -blockdev driver=file,cache.direct=off,cache.no-flush=on,filename=/home/kvm_autotest_root/iso/ISO/Win2022/Windows_InsiderPreview_Server_vNext_en-us_20344.iso,node-name=my_cd,read-only=on -blockdev driver=raw,node-name=mycd,file=my_cd,read-only=on -device ide-cd,drive=mycd,id=ide0-1-0,bus=ide.1,unit=0 -blockdev driver=file,cache.direct=off,cache.no-flush=on,filename=199SCS226435CAB.iso,node-name=my_iso,read-only=on -blockdev driver=raw,node-name=myiso,file=my_iso,read-only=on -device ide-cd,drive=myiso,id=ide0-1-1 -device usb-tablet,id=input0 -vnc 0.0.0.0:0 -M q35 -device pcie-root-port,bus=pcie.0,id=root1.0,multifunction=on,port=0x10,chassis=1,addr=0x7 -device pcie-root-port,bus=pcie.0,id=root2.0,port=0x11,chassis=2,addr=0x7.0x1 -netdev tap,script=/etc/qemu-ifup,downscript=no,id=hostnet0 -device e1000e,bus=root1.0,netdev=hostnet0,id=net0,mac=00:52:0d:27:06:07 -vga std -device virtio-scsi-pci,id=scsi0,bus=root2.0,num_queues=8 -blockdev driver=file,cache.direct=off,cache.no-flush=on,filename=199SCS226435CAB_test.raw,node-name=my_scsi -blockdev driver=raw,node-name=myscsi,file=my_scsi -device scsi-hd,bus=scsi0.0,drive=myscsi,id=scsi-disk0,serial=whql_test

2. On HLK studio submit the job "Flush Test" 
3. Check the result

Actual results:
Failed

Expected results:
Passed

Additional info:
We have a manual errata# 41719 for Win10/win2019 guest, but for Windows server 2022, as we discussed, it's better to ask a new errata for it, thanks~