Description of problem:
There is no keyword 'dependencies' for /dev/sda1&/dev/sda2 from command 'get-disks' on rhel8.5


Version-Release number of selected component (if applicable):
qemu-guest-agent-6.0.0-14rc0.scrmod+el8.5.0+10480+a8e067ae.wrb210325.x86_64.rpm

How reproducible:


Steps to Reproduce:
1. bootup rhel8.5 guest
/usr/libexec/qemu-kvm \
    -S  \
    -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 14336  \
    -smp 24,maxcpus=24,cores=12,threads=1,dies=1,sockets=2  \
    -cpu 'Skylake-Server',+kvm_pv_unhalt \
    -chardev socket,id=qmp_id_qmpmonitor1,server,path=/tmp/avocado_xggvxd2c/monitor-qmpmonitor1-20210418-082850-tITUUA88,nowait  \
    -mon chardev=qmp_id_qmpmonitor1,mode=control \
    -chardev socket,id=qmp_id_catch_monitor,server,path=/tmp/avocado_xggvxd2c/monitor-catch_monitor-20210418-082850-tITUUA88,nowait  \
    -mon chardev=qmp_id_catch_monitor,mode=control \
    -device pvpanic,ioport=0x505,id=idH39mDT \
    -chardev socket,id=chardev_serial0,server,path=/tmp/avocado_xggvxd2c/serial-serial0-20210418-082850-tITUUA88,nowait \
    -device isa-serial,id=serial0,chardev=chardev_serial0 \
    -chardev socket,id=chardev_org.qemu.guest_agent.0,server,path=/tmp/avocado_xggvxd2c/serial-org.qemu.guest_agent.0-20210418-082850-tITUUA88,nowait \
    -device pcie-root-port,id=pcie-root-port-1,port=0x1,addr=0x1.0x1,bus=pcie.0,chassis=2 \
    -device virtio-serial-pci,id=virtio_serial_pci0,bus=pcie-root-port-1,addr=0x0 \
    -device virtserialport,id=org.qemu.guest_agent.0,name=org.qemu.guest_agent.0,chardev=chardev_org.qemu.guest_agent.0,bus=virtio_serial_pci0.0,nr=1  \
    -chardev socket,id=seabioslog_id_20210418-082850-tITUUA88,path=/tmp/avocado_xggvxd2c/seabios-20210418-082850-tITUUA88,server,nowait \
    -device isa-debugcon,chardev=seabioslog_id_20210418-082850-tITUUA88,iobase=0x402 \
    -device pcie-root-port,id=pcie-root-port-2,port=0x2,addr=0x1.0x2,bus=pcie.0,chassis=3 \
    -device qemu-xhci,id=usb1,bus=pcie-root-port-2,addr=0x0 \
    -device usb-tablet,id=usb-tablet1,bus=usb1.0,port=1 \
    -device pcie-root-port,id=pcie-root-port-3,port=0x3,addr=0x1.0x3,bus=pcie.0,chassis=4 \
    -device virtio-scsi-pci,id=virtio_scsi_pci0,bus=pcie-root-port-3,addr=0x0 \
    -blockdev node-name=file_image1,driver=file,auto-read-only=on,discard=unmap,aio=threads,filename=/home/kvm_autotest_root/images/rhel850-64-virtio-scsi.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 \
    -blockdev node-name=file_stg0,driver=file,auto-read-only=on,discard=unmap,aio=threads,filename=/home/kvm_autotest_root/images/storage0.qcow2,cache.direct=on,cache.no-flush=off \
    -blockdev node-name=drive_stg0,driver=qcow2,read-only=off,cache.direct=on,cache.no-flush=off,file=file_stg0 \
    -device scsi-hd,id=stg0,drive=drive_stg0,write-cache=on \
    -device pcie-root-port,id=pcie-root-port-4,port=0x4,addr=0x1.0x4,bus=pcie.0,chassis=5 \
    -device virtio-net-pci,mac=9a:f7:9d:85:e3:f1,id=idyetH48,netdev=idnjy4O8,bus=pcie-root-port-4,addr=0x0  \
    -netdev tap,id=idnjy4O8,vhost=on,vhostfd=20,fd=16  \
    -vnc :0  \
    -rtc base=utc,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=6
2.send qga command 'guest-get-disks'
[root@dell-per440-01 test-results]# nc -U /tmp/avocado_6qpvod1p/serial-org.qemu.guest_agent.0-20210415-022139-QXRSkGwK
{"execute":"guest-get-disks"}
{"return": [{"name": "/dev/sda1", "partition": true}, {"name": "/dev/sda2", "partition": true}, {"name": "/dev/sda", "dependencies": [], "partition": false, "address": {"bus-type": "scsi", "bus": 0, "unit": 0, "pci-controller": {"bus": 5, "slot": 0, "domain": 0, "function": 0}, "dev": "/dev/sda", "target": 0}}, {"name": "/dev/dm-0", "dependencies": ["/dev/sda2"], "partition": false, "alias": "rhel_bootp--73--75--109-root"}, {"name": "/dev/dm-1", "dependencies": ["/dev/sda2"], "partition": false, "alias": "rhel_bootp--73--75--109-swap"}]}

Actual results:
{"return": [{"name": "/dev/sda1", "partition": true}, {"name": "/dev/sda2", "partition": true}
There is no keyword 'dependencies' for /dev/sda1&/dev/sda2
Expected results:
'dependencies' should be print there.
{"return": [{"name": "/dev/sda1", "dependencies": ["/dev/sda"], "partition": true}, {"name": "/dev/sda2", "dependencies": ["/dev/sda"], "partition": true}
Additional info: