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Re: [PATCH 2/3] automation: Linux 5.10.74 test-artifact



On 22.10.21 21:41, Stefano Stabellini wrote:
+Juergen

On Fri, 22 Oct 2021, Andrew Cooper wrote:
On 22/10/2021 00:08, Stefano Stabellini wrote:
+# build depends
+RUN apt-get update && \
+    apt-get --quiet --yes install \
+        build-essential \
+        libssl-dev \
+        bc \
+        curl \
+        flex \
+        bison \
+        libelf-dev \
+        && \
+    \
+    # Build the kernel
+    curl -fsSLO 
https://cdn.kernel.org/pub/linux/kernel/v5.x/linux-"$LINUX_VERSION".tar.xz && \
+    tar xvJf linux-"$LINUX_VERSION".tar.xz && \
+    cd linux-"$LINUX_VERSION" && \
+    make defconfig && \
+    make xen.config && \
+    cp .config .config.orig && \
+    cat .config.orig | grep XEN | grep =m |sed 's/=m/=y/g' >> .config && \
+    make -j$(nproc) bzImage && \

defconfig is huuuuge.  Can we use tinyconfig instead?

Also, you want to turn off CONFIG_MODULES seeing as you only copy
bzImage to the test.

This also fixes the fact that `grep XEN` also matches CONFIG_NETXEN_NIC
which has nothing to do with Xen.

Tinyconfig would be a good idea but it crashes on QEMU with the appended
boot log. I did:

# make tinyconfig
# make xen.config
# make bzImage

Of course we could have our own tailored special kernel config for this
kernel but I like the simplicify of "make tinyconfig" or "make
defconfig" followed by "make xen.config".

Unless you know one kconfig option or two that we need to add to
tinyconfig to make it work my preference is to go with defconfig for
now.

You will need to add the dom0 and SMP related config options at least.

I'll have a look at config.xen, which is a little bit weird: it
configures the backends, but not dom0.


Juergen

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