[PATCH v2 2/3] tests/docker: Add fedora-win10sdk-cross image

["Philippe Mathieu-Daudé" <philmd@redhat.com>]

To build WHPX (Windows Hypervisor) binaries, we need the WHPX
headers provided by the Windows SDK.

Add a script that fetches the required MSI/CAB files from the
latest SDK (currently 10.0.18362.1).

Headers are accessible under /opt/win10sdk/include.

Set the QEMU_CONFIGURE_OPTS environment variable accordingly,
enabling HAX and WHPX. Due to CPP warnings related to Microsoft
specific #pragmas, we also need to use the '--disable-werror'
configure flag.

Cc: Justin Terry <juterry@microsoft.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
---
 tests/docker/Makefile.include                 |  2 ++
 .../dockerfiles/fedora-win10sdk-cross.docker  | 23 ++++++++++++++++
 tests/docker/dockerfiles/win10sdk-dl.sh       | 27 +++++++++++++++++++
 3 files changed, 52 insertions(+)
 create mode 100644 tests/docker/dockerfiles/fedora-win10sdk-cross.docker
 create mode 100755 tests/docker/dockerfiles/win10sdk-dl.sh

diff --git a/tests/docker/Makefile.include b/tests/docker/Makefile.include
index 50a400b573..aa2e4e56dd 100644
--- a/tests/docker/Makefile.include
+++ b/tests/docker/Makefile.include
@@ -125,6 +125,8 @@ docker-image-debian-ppc64-cross: docker-image-debian10
 docker-image-debian-riscv64-cross: docker-image-debian10
 docker-image-debian-sh4-cross: docker-image-debian10
 docker-image-debian-sparc64-cross: docker-image-debian10
+docker-image-fedora-win10sdk-cross: docker-image-fedora
+docker-image-fedora-win10sdk-cross: EXTRA_FILES:=$(DOCKER_FILES_DIR)/win10sdk-dl.sh
 
 docker-image-travis: NOUSER=1
 
diff --git a/tests/docker/dockerfiles/fedora-win10sdk-cross.docker b/tests/docker/dockerfiles/fedora-win10sdk-cross.docker
new file mode 100644
index 0000000000..55ca933d40
--- /dev/null
+++ b/tests/docker/dockerfiles/fedora-win10sdk-cross.docker
@@ -0,0 +1,23 @@
+#
+# Docker MinGW64 cross-compiler target with WHPX header installed
+#
+# This docker target builds on the Fedora 30 base image.
+#
+# SPDX-License-Identifier: GPL-2.0-or-later
+#
+FROM qemu:fedora
+
+RUN dnf install -y \
+        cabextract \
+        msitools \
+        wget
+
+# Install WHPX headers from Windows Software Development Kit:
+# https://developer.microsoft.com/en-us/windows/downloads/windows-10-sdk
+ADD win10sdk-dl.sh /usr/local/bin/win10sdk-dl.sh
+RUN /usr/local/bin/win10sdk-dl.sh
+
+ENV QEMU_CONFIGURE_OPTS ${QEMU_CONFIGURE_OPTS} \
+    --cross-prefix=x86_64-w64-mingw32- \
+    --extra-cflags=-I/opt/win10sdk/include --disable-werror \
+    --enable-hax --enable-whpx
diff --git a/tests/docker/dockerfiles/win10sdk-dl.sh b/tests/docker/dockerfiles/win10sdk-dl.sh
new file mode 100755
index 0000000000..1c35c2a252
--- /dev/null
+++ b/tests/docker/dockerfiles/win10sdk-dl.sh
@@ -0,0 +1,27 @@
+#!/bin/bash
+#
+# Install WHPX headers from Windows Software Development Kit
+# https://developer.microsoft.com/en-us/windows/downloads/windows-10-sdk
+#
+# SPDX-License-Identifier: GPL-2.0-or-later
+
+WINDIR=/opt/win10sdk
+mkdir -p ${WINDIR}
+pushd ${WINDIR}
+# Get the bundle base for Windows SDK v10.0.18362.1
+BASE_URL=$(curl --silent --include 'http://go.microsoft.com/fwlink/?prd=11966&pver=1.0&plcid=0x409&clcid=0x409&ar=Windows10&sar=SDK&o1=10.0.18362.1' | sed -nE 's_Location: (.*)/\r_\1_p')/Installers
+# Fetch the MSI containing the headers
+wget --no-verbose ${BASE_URL}/'Windows SDK Desktop Headers x86-x86_en-us.msi'
+while true; do
+    # Fetch all cabinets required by this MSI
+    CAB_NAME=$(msiextract Windows\ SDK\ Desktop\ Headers\ x86-x86_en-us.msi 3>&1 2>&3 3>&-| sed -nE "s_.*Error opening file $PWD/(.*): No such file or directory_\1_p")
+    test -z "${CAB_NAME}" && break
+    wget --no-verbose ${BASE_URL}/${CAB_NAME}
+done
+rm *.{cab,msi}
+mkdir /opt/win10sdk/include
+# Only keep the WHPX headers
+for inc in "${WINDIR}/Program Files/Windows Kits/10/Include/10.0.18362.0/um"/WinHv*; do
+    ln -s "${inc}" /opt/win10sdk/include
+done
+popd > /dev/null
-- 
2.20.1