Libvirt, Qemu VM problem with keyboard

[kalpana]

I am building a system comprised of Linux 5.9.18 and Busybox.

I am able to get a shell open. But, my keyboard does not work.

I am using libvirt with Qemu.

My kernel config is configured as the following (allnoconfig, and then the settings below):
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[*] 64-bit kernel
-> General setup
  -> Configure standard kernel features[*] Enable support for printk
-> General setup[*] Initial RAM filesystem and RAM disk (initramfs/initrd) support
-> Executable file formats / Emulations[*] Kernel support for ELF binaries[*] Kernel support for scripts starting with #!
-> Device Drivers
  -> Character devices[*] Enable TTY
-> Device Drivers
  -> Character devices
    -> Serial drivers[*] 8250/16550 and compatible serial support[*]   Console on 8250/16550 and compatible serial port
-> File systems
  -> Pseudo filesystems[*] /proc file system support[*] sysfs file system support
-> Kernel hacking                                                     
    -> Compile-time checks and compiler options [*] Debug filesystem
-> Kernel hacking   [*] Early printk
I edited my VM's XML file like so:
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<device>
...
    <input type='evdev'>
      <source dev='/dev/input/by-id/usb-Dell_Dell_USB_Keyboard-event-kbd' grab='all' repeat='on'/>
    </input>
...
</device>

The keyboard seems to catch on to the VM window, but it does not type anything when I press any keys. Not sure what the issue could be. Any help would be greatly appreciated!

Thank you!