[Qemu-devel] Re: [[RfC PATCH]] linux fbdev display driver prototype.

[Stefano Stabellini]

On Thu, 20 May 2010, Gerd Hoffmann wrote:

> Display works with 32 bpp (both host + guest) only.
> Which surprisingly didn't cause much problems so far in my testing.
> Host runs with kms and inteldrmfb.
> 
> Mouse support isn't available yet.
> I've cheated by passed through the hosts usb mouse for testing.
> 
> Keyboard works.  Guest screen has whatever keymap you load inside
> the guest.  Text windows (monitor, serial, ...) have a simple en-us
> keymap.  Good enougth to type monitor commands.  Not goot enougth to
> work seriously on a serial terminal.  But the qemu terminal emulation
> isn't good enougth for that anyway ;)
> 
> Hot keys:
>   Ctrl-Alt-F<nr>  -> host console switching.
>   Ctrl-Alt-<nr>   -> qemu console switching.
>   Ctrl-Alt-ESC    -> exit qemu.
> 
> Special feature:  Sane console switching.  Switching away stops screen
> updates.  Switching back redraws the screen.  When started from the
> linux console qemu uses the vt you've started it from (requires just
> read/write access to /dev/fb0).  When starting from somewhere else qemu
> tries to open a unused virtual terminal and switch to it (usually
> requires root privileges to open /dev/tty<nr>).
> 
> For some strange reason console switching from X11 to qemu doesn't work.
> Anything else (including X11 -> text console -> qemu) works fine.  To be
> investigated ...
> 

Not bad for quick start!

Does qemu->qemu switching work when running multiple VMs?