Dear Maintainer, With Xen 4.11, I cannot use the standard emulated PS/2 keyboard when booting HVM domUs (through VNC.) I did not have this problem with Xen 4.8 (4.8.3+xsa267+shim4.10.1+xsa267-1+deb9u9). In SeaBIOS, pressing ESC does not interrupt the boot. In OVMF, pressing ESC does not interrupt the boot; typing does not work at the UEFI shell, either. I cannot type at Syslinux prompts. When a kernel boots, I cannot type at the console. If I use '-device usb-kbd' to add a USB keyboard, I can usually type at the Syslinux prompt and at shells, but I still can't affect the BIOS.