[Lkw] Getting started

[Rodrigo Alejandro Melo]

Hi Christoph, thanks! (it works, with a few tweaks)

First of all, I strongly recommend other attendants to do that before the
workshop! (at least, download things such as the Linux sources) If not, and
with a probably saturated connection, we will spend a lot of time.

This is the receipe to build a new qemu from the source tree:
>

At least on my system, to build qemu, I needed to install extra packages.
TL;DR you can run:
sudo apt install libglib2.0-dev libfdt-dev libpixman-1-dev zlib1g-dev
libaio-dev libusb-1.0-0-dev libspice-server-dev libnfs-dev libiscsi-dev
liblzo2-dev libseccomp-dev libattr1-dev libcap-ng-dev ninja-build


> sudo apt-get install build-essential
> git clone https://github.com/qemu/qemu
> cd qemu
> mkdir build
> cd build
>
 sudo apt install ninja-build meson

> ../configure --disable-werror --target-list=x86_64-softmmu
> --prefix=/opt/newqemu/
> make
>
> After this the kvm-jrsl.sh scripts needs to be adjusted so that
>
> QEMU="qemu-system-x86_64"
>
> line instead says:
>
> QEMU="/opt/newqemu/bin/qemu-system-x86_64"
>

And I needed to create shared (mkdir shared) to avoid an error.
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