Description of problem:
Boot a rhel9.1.0 guest,check dmesg with "dmesg --level=err,warn" in guest and found warn and error messages

Version-Release number of selected component (if applicable):
host version:
kernel-5.14.0-92.el9.x86_64
qemu-kvm-7.0.0-1.el9.x86_64
edk2-ovmf-20220221gitb24306f15d-1.el9.noarch
guest: rhel9.1.0(kernel-5.14.0-92.el9.x86_64)

How reproducible:
2/2

Steps to Reproduce:
1.boot a guest with q35 + edk2-ovmf
/usr/libexec/qemu-kvm \
-name 'avocado-vt-vm1' \
-sandbox on \
-blockdev node-name=file_ovmf_code,driver=file,filename=/usr/share/edk2/ovmf/OVMF_CODE.secboot.fd,auto-read-only=on,discard=unmap \
-blockdev node-name=drive_ovmf_code,driver=raw,read-only=on,file=file_ovmf_code \
-blockdev node-name=file_ovmf_vars,driver=file,filename=/home/OVMF_VARS.fd,auto-read-only=on,discard=unmap \
-blockdev node-name=drive_ovmf_vars,driver=raw,read-only=off,file=file_ovmf_vars \
-machine q35,memory-backend=mem-machine_mem,pflash0=drive_ovmf_code,pflash1=drive_ovmf_vars \
-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 \
-device i6300esb,id=wdt0,bus=pcie-pci-bridge-0 \
-watchdog-action reset \
-nodefaults \
-device VGA,bus=pcie.0,addr=0x2 \
-m 12G \
-object memory-backend-ram,size=12G,id=mem-machine_mem \
-smp 10,maxcpus=10,cores=5,threads=1,sockets=2 \
-cpu IvyBridge,enforce \
-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 usb-tablet,id=usb-tablet1,bus=usb1.0,port=1 \
-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 \
-blockdev node-name=file_image1,driver=file,auto-read-only=on,discard=unmap,aio=threads,filename=/home/rhel9.1-ovmf.qcow2,cache.direct=on,cache.no-flush=off \
-blockdev node-name=drive_image1,driver=qcow2,read-only=off,cache.direct=on,cache.no-flush=off,file=file_image1 \
-device scsi-hd,id=image1,drive=drive_image1,write-cache=on \
-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:df:ca:53:c2:69,id=idz43iXV,netdev=idPOEPyA,bus=pcie-root-port-3,addr=0x0 \
-netdev tap,id=idPOEPyA,vhost=on \
-vnc :0 \
-rtc base=utc,clock=host,driftfix=slew \
-boot menu=off,order=cdn,once=c,strict=off \
-enable-kvm \
-monitor stdio \
-qmp tcp:0:4444,server=on,wait=off \

2.check dmesg in guest

1. dmesg --level=err,warn
   OR
2. dmesg -T -l 0,1,2,3,4 | grep .

Actual results:
After step2, found the following message:

1. dmesg --level=err,warn
   [ 0.161379] #2
   [ 0.163582] #3
   [ 0.165382] #4
   [ 0.167371] #5
   [ 0.170017] #6
   [ 0.172375] #7
   [ 0.174380] #8
   [ 0.176373] #9
   [ 0.499586] shpchp 0000:01:00.0: pci_hp_register failed with error -16
   [ 0.500039] shpchp 0000:01:00.0: Slot initialization failed
   [ 1.892030] device-mapper: core: CONFIG_IMA_DISABLE_HTABLE is disabled. Duplicate IMA measurements will not be recorded in the IMA log.
   [ 2.165834] sd 0:0:0:0: Power-on or device reset occurred

Expected results:
After step2, There should not have warn and fail in dmesg

Additional info:
1) boot a guest with max memory, also hit the same issue.
2) There is a similar error: Bug 2004876 - Failed message when boot guest with pcie-pci-bridge