xen_blktap3.sh

#!/bin/bash
set -e

# Notes:
#
# Builds on Ubuntu 18.04 with gcc-7

###############################################################################
# Get deps on Ubuntu
###############################################################################

sudo apt update
sudo apt upgrade -y
sudo apt-get install -y wget git bcc bin86 gawk bridge-utils iproute2 libcurl4-openssl-dev bzip2 libpci-dev build-essential make gcc clang libc6-dev linux-libc-dev zlib1g-dev libncurses5-dev patch libvncserver-dev libssl-dev libsdl-dev iasl libbz2-dev e2fslibs-dev git-core uuid-dev ocaml libx11-dev bison flex ocaml-findlib xz-utils gettext libyajl-dev libpixman-1-dev libaio-dev libfdt-dev cabextract libglib2.0-dev autoconf automake libtool libjson-c-dev libfuse-dev liblzma-dev autoconf-archive kpartx python3-dev python3-pip golang python-dev libsystemd-dev nasm

###############################################################################
# clone and patch
###############################################################################

git clone git://xenbits.xen.org/xen.git -b stable-4.12
git clone https://github.com/OpenXT/xenclient-oe
cd xenclient-oe
git checkout 406b0a531c83f8fb9335d1ac8d5816f7695e7694
sed -i 's/17, "VBD3"/16, "VBD3"/g' recipes-extended/xen/files/libxl-blktap3-support.patch
sed -i '/^.*"VWIF".*$/d' recipes-extended/xen/files/libxl-blktap3-support.patch
sed -i 's/ ?= / = /g' recipes-extended/xen/files/enable-blktap3-within-tree.patch

cd ../xen
git clone https://github.com/eric-ch/blktap-1 -b openxt-blktap3-dirty tools/blktap3

patch -p1 < ../xenclient-oe/recipes-extended/xen/files/libxl-blktap3-support.patch || true # ignore 1 failed hunk
patch -p1 < ../xenclient-oe/recipes-extended/xen/files/blktap3-build-integration.patch
patch -p1 < ../xenclient-oe/recipes-extended/xen/files/enable-blktap3-within-tree.patch

# More patches:
#libxl-blktap3-support.patch
#libxl-crypto-key-dir.patch
#libxl-blktap3-do-not-destroy-in-use-tapdevs.patch
#libxl-blktap3-iso-hotswap.patch
#enable-blktap3-within-tree.patch
#blktap3-build-integration.patch

###############################################################################
# compile
###############################################################################

cd tools/blktap3
./autogen.sh
./configure CPPFLAGS="-DTAP_CTL_NO_DEFAULT_CGROUP_SLICE -DOPEN_XT"
cd ../..

./configure --disable-stubdom --enable-blktap2
make -j4 dist-xen
make -j4 dist-tools