hello,
my  vm is starting with libvirt xml definition file.

Qemu 2.4.0
using sdl2|gtk  ui     ( not using spice client)
guest vm = windows seven
last qxl drivers

=> there is no mouse cursor visible in windows.

same with windows 8.1 guest
=> there is mouse cursor visible

there 's no problem with linux guest.

Qxl video card is necessary for dual monitor configuration under windows OS
.

Any suggestion, it 's seems a bugzilla was submitted long time ago without
answer.

Regars,
Nicolas Prochazka.