Re: [PATCH] kvm tools: Add support for PS/2 keyboard system

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* Sasha Levin <levinsasha928@xxxxxxxxx> wrote:

> From: John Floren <john@xxxxxxxxxxx>
> 
> Add support for PS/2 keyboard system with AUX device (aka mouse).
> The device works with vnc, the guest must be started with the
> '--vnc' parameter for the device to be initialized.
> 
> Signed-off-by: John Floren <john@xxxxxxxxxxx>
> [ turn into patch and clean up code ]
> Signed-off-by: Sasha Levin <levinsasha928@xxxxxxxxx>
> ---
>  tools/kvm/Makefile            |    1 +
>  tools/kvm/hw/pckbd.c          |  475 +++++++++++++++++++++++++++++++++++++++++

Since this is a PS2 keyboard and mouse driver please name it 
i8042.[ch] like the kernel-side does.

that will also make it easier to find the guest-side <-> host-side 
pair of guest-driver/host-driver files :-)

>  tools/kvm/hw/vesa.c           |    3 +
>  tools/kvm/include/kvm/pckbd.h |   19 ++
>  tools/kvm/ioport.c            |    4 -
>  tools/kvm/kvm-run.c           |    5 +-
>  6 files changed, 502 insertions(+), 5 deletions(-)
>  create mode 100644 tools/kvm/hw/pckbd.c
>  create mode 100644 tools/kvm/include/kvm/pckbd.h

In general the code looks very clean to me!

Found two minor nits:

> +		ret = state.kq[state.kread++ % QUEUE_SIZE];
> +		ret = state.mq[state.mread++ % QUEUE_SIZE];

Please increment the index explicitly, on a separate line - the 
permanent side-effect to the keyboard state is not obvious at first 
sight.

Thanks,

	Ingo
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