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Description of problem: floppy device can not be detached on q35 under ovmf Version-Release number of selected component (if applicable): OVMF-20160608-3.git988715a.el7.noarch qemu-kvm-rhev-2.6.0-22.el7.x86_64 host kernel:3.10.0-500.el7.x86_64 guest kernel:3.10.0-500.el7.x86_64 How reproducible: 3/3 Steps to Reproduce: 1.Boot guest with floppy device /usr/libexec/qemu-kvm \ -M q35 \ -cpu SandyBridge \ -nodefaults -rtc base=utc \ -m 4G \ -smp 2,sockets=2,cores=1,threads=1 \ -enable-kvm \ -uuid 990ea161-6b67-47b2-b803-19fb01d30d12 \ -k en-us \ -nodefaults \ -drive file=/usr/share/OVMF/OVMF_CODE.secboot.fd,if=pflash,format=raw,unit=0,readonly=on \ -drive file=/home/OVMF_VARS.fd,if=pflash,format=raw,unit=1 \ -serial unix:/tmp/serial0,server,nowait \ -debugcon file:/home/ovmf.log \ -global isa-debugcon.iobase=0x402 \ -boot menu=on \ -qmp tcp:0:6666,server,nowait \ -vga qxl \ -spice port=5932,disable-ticketing \ -drive file=/home/bug/rhelovmf.qcow2,if=none,id=drive-virtio-disk0,format=qcow2,cache=none,werror=stop,rerror=stop \ -device virtio-blk-pci,drive=drive-virtio-disk0,id=virtio-disk0 \ -device virtio-net-pci,netdev=tap10,mac=9a:6a:6b:6c:6d:6e -netdev tap,id=tap10 \ -drive file=/home/floppy1.vfd,if=none,id=drive-fdc0-0-0,format=raw,cache=none \ -global isa-fdc.driveA=drive-fdc0-0-0 \ -usb -device usb-mouse,id=mouse \ -monitor stdio \ 2.(qemu) info block pflash0 (#block131): /usr/share/OVMF/OVMF_CODE.secboot.fd (raw, read-only) Cache mode: writeback pflash1 (#block333): /home/OVMF_VARS.fd (raw) Cache mode: writeback drive-virtio-disk0 (#block507): /home/bug/rhelovmf.qcow2 (qcow2) Cache mode: writeback, direct drive-fdc0-0-0 (#block702): /home/floppy1.vfd (raw) Removable device: not locked, tray closed Cache mode: writeback, direct 3.check the floppy device on guest Actual results: Didn't found the floppy device [root@localhost ~]# lsblk NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT vda 252:0 0 30G 0 disk ├─vda1 252:1 0 200M 0 part /boot/efi ├─vda2 252:2 0 1G 0 part /boot └─vda3 252:3 0 28.8G 0 part ├─rhel-root 253:0 0 25.8G 0 lvm / └─rhel-swap 253:1 0 3G 0 lvm [SWAP] Expected results: floppy device can be detached Additional info: floppy can be detached on pc +seabios Also failed on qemu-kvm-rhev-2.6.0-23.el7.x86_64 and host kernel:3.10.0-503.el7.x86_64,OVMF-20160608-3.git988715a.el7.noarch