[Lkw] Getting started

[Christoph Hellwig]

Hi Rodrigo,

yes, unfortunately we already found out last night that the qemu
in Ubuntu 20.04 is too old.

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

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