[PATCH 7/8] Infrastructure for arm64 linux builds

[Andrew Cooper <andrew.cooper3@xxxxxxxxxx>]

Signed-off-by: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
---
CC: Roger Pau Monné <roger.pau@xxxxxxxxxx>
CC: Stefano Stabellini <sstabellini@xxxxxxxxxx>
CC: Michal Orzel <michal.orzel@xxxxxxx>
CC: Marek Marczykowski-Górecki <marmarek@xxxxxxxxxxxxxxxxxxxxxx>
CC: Anthony PERARD <anthony.perard@xxxxxxxxxx>
---
 .gitlab-ci.yml                            |  7 ++++++
 containerize                              |  1 +
 images/alpine/3.18-arm64-build.dockerfile | 27 +++++++++++++++++++++++
 scripts/build-linux.sh                    | 10 +++++++++
 4 files changed, 45 insertions(+)
 create mode 100644 images/alpine/3.18-arm64-build.dockerfile

diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index ff8dce7be05d..6e38c2f2a108 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -19,6 +19,13 @@ stages:
     exclude:
       - binaries/.gitignore
 
+.arm64-artifacts:
+  extends: .artifacts
+  tags:
+    - arm64
+  variables:
+    CONTAINER: alpine:3.18-arm64-build
+
 .x86_64-artifacts:
   extends: .artifacts
   tags:
diff --git a/containerize b/containerize
index c32e40f5a6d9..6664ef9821d0 100755
--- a/containerize
+++ b/containerize
@@ -24,6 +24,7 @@ die() {
 #
 BASE="registry.gitlab.com/xen-project/hardware/test-artifacts"
 case "_${CONTAINER}" in
+    _alpine-3.18-arm64-build) CONTAINER="${BASE}/alpine:3.18-arm64-build" ;;
     _alpine-x86_64-base) CONTAINER="${BASE}/alpine:x86_64-base" ;;
     _alpine-x86_64-build|_) CONTAINER="${BASE}/alpine:x86_64-build" ;;
 esac
diff --git a/images/alpine/3.18-arm64-build.dockerfile 
b/images/alpine/3.18-arm64-build.dockerfile
new file mode 100644
index 000000000000..c76ac435e8dd
--- /dev/null
+++ b/images/alpine/3.18-arm64-build.dockerfile
@@ -0,0 +1,27 @@
+# syntax=docker/dockerfile:1
+FROM --platform=linux/arm64/v8 alpine:3.18
+LABEL maintainer.name="The Xen Project" \
+      maintainer.email="xen-devel@xxxxxxxxxxxxxxxxxxxx"
+
+RUN apk --no-cache add bash
+
+RUN bash -ex <<EOF
+      adduser -D user --shell bash
+
+      DEPS=(# Base environment
+            musl-dev
+            build-base
+            curl
+
+            # Linux build deps
+            flex
+            bison
+            perl
+            openssl-dev
+      )
+
+      apk add --no-cache "\${DEPS[@]}"
+EOF
+
+USER user
+WORKDIR /build
diff --git a/scripts/build-linux.sh b/scripts/build-linux.sh
index 5e25e958c0f3..1be20a38071d 100755
--- a/scripts/build-linux.sh
+++ b/scripts/build-linux.sh
@@ -21,6 +21,7 @@ cd linux-"${LINUX_VERSION}"
 make defconfig
 ./scripts/config --enable BRIDGE
 ./scripts/config --enable IGC
+./scripts/config --enable IPV6
 ./scripts/config --enable TUN
 
 case $UNAME in
@@ -32,6 +33,10 @@ case $UNAME in
             | grep '=m' \
             | sed 's/=m/=y/g' >> .config
         ;;
+
+    aarch64)
+        ./scripts/config --enable XEN_NETDEV_BACKEND
+        ;;
 esac
 
 make olddefconfig
@@ -41,4 +46,9 @@ case $UNAME in
         make -j$(nproc) bzImage
         cp arch/x86/boot/bzImage "${COPYDIR}"
         ;;
+
+    aarch64)
+        make -j$(nproc) Image
+        cp arch/arm64/boot/Image "${COPYDIR}"
+        ;;
 esac
-- 
2.39.5