nSVM on KVM+hyperv

repro.sh

#!/bin/bash

setup() {
  sudo sed -ie 's/# deb-src/deb-src/' /etc/apt/sources.list

  sudo apt-get update
  sudo apt-get install -y make ccache gcc g++ python-is-python3
  sudo apt-get build-dep -y qemu-system
  sudo apt-get build-dep -y ovmf
  export PATH="/usr/lib/ccache:$PATH"
  export CCACHE_COMPRESS=true

  pushd /mnt/
  sudo mkdir -p $USER
  sudo chown $USER $USER
  pushd $USER
  [ ! -d AMDSEV ] && git clone https://github.com/AMDESE/AMDSEV -b sev-snp-devel

  pushd AMDSEV
  # patch panic=-1 into the kernel cmdline
  base64 -d <<EOF | patch -p1 --forward
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NC4uNmE2NDQ3OSAxMDA3NTUKLS0tIGEvbGF1bmNoLXFlbXUuc2gKKysrIGIvbGF1bmNoLXFlbXUu
c2gKQEAgLTIzNyw3ICsyMzcsNyBAQCBmaQogIyBpZiAta2VybmVsIGFyZyBpcyBzcGVjaWZpZWQg
dGhlbiB1c2UgdGhlIGtlcm5lbCBwcm92aWRlZCBpbiBjb21tYW5kIGxpbmUgZm9yIGJvb3QKIGlm
IFsgIiR7S0VSTkVMX0ZJTEV9IiAhPSAiIiBdOyB0aGVuCiAJYWRkX29wdHMgIi1rZXJuZWwgJEtF
Uk5FTF9GSUxFIgotCWFkZF9vcHRzICItYXBwZW5kIFwiY29uc29sZT10dHlTMCBlYXJseXByaW50
az1zZXJpYWwgcm9vdD0vZGV2L3NkYTJcIiIKKwlhZGRfb3B0cyAiLWFwcGVuZCBcImNvbnNvbGU9
dHR5UzAgZWFybHlwcmludGs9c2VyaWFsIHJvb3Q9L2Rldi9zZGEyIHBhbmljPS0xXCIiCiAJWyAh
IC16ICR7SU5JVFJEX0ZJTEV9IF0gJiYgYWRkX29wdHMgIi1pbml0cmQgJHtJTklUUkRfRklMRX0i
CiBmaQogCg==
EOF

  ./build.sh ovmf
  # first build fails
  if ! ./build.sh qemu; then
    # patch to make it buildable
    pushd qemu
    base64 -d <<EOF | patch -p1 --forward
ZGlmZiAtLWdpdCBhL2VicGYvZWJwZl9yc3MuYyBiL2VicGYvZWJwZl9yc3MuYwppbmRleCAxMThj
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Zi9lYnBmX3Jzcy5jCkBAIC00OSw3ICs0OSw3IEBAIGJvb2wgZWJwZl9yc3NfbG9hZChzdHJ1Y3Qg
RUJQRlJTU0NvbnRleHQgKmN0eCkKICAgICAgICAgZ290byBlcnJvcjsKICAgICB9CiAKLSAgICBi
cGZfcHJvZ3JhbV9fc2V0X3NvY2tldF9maWx0ZXIocnNzX2JwZl9jdHgtPnByb2dzLnR1bl9yc3Nf
c3RlZXJpbmdfcHJvZyk7CisgICAgYnBmX3Byb2dyYW1fX3NldF90eXBlKHJzc19icGZfY3R4LT5w
cm9ncy50dW5fcnNzX3N0ZWVyaW5nX3Byb2csIEJQRl9QUk9HX1RZUEVfU09DS0VUX0ZJTFRFUik7
CiAKICAgICBpZiAocnNzX2JwZl9fbG9hZChyc3NfYnBmX2N0eCkpIHsKICAgICAgICAgdHJhY2Vf
ZWJwZl9lcnJvcigiZUJQRiBSU1MiLCAiY2FuIG5vdCBsb2FkIFJTUyBwcm9ncmFtIik7CmRpZmYg
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ICAgICAgICAgICAgICAgICAgICAgICAgIElPTU1VVExCRW50cnkgKnJldCwgdW5zaWduZWQgcGVy
bXMsCiAgICAgICAgICAgICAgICAgICAgICAgICAgICAgaHdhZGRyIGFkZHIpCiB7Ci0gICAgdW5z
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cmVhZHkgKi8K
EOF
    popd
    ./build.sh qemu
  fi
  popd
  popd
  popd
}

runtest() {
  pushd /mnt/$USER/AMDSEV
  mkdir -p logs
  while sleep 1; do
    sudo timeout 15s ./launch-qemu.sh -hda '' -mem 512 -smp 1 -kernel /boot/vmlinuz
    cp stdout.log logs/$(date +%s).log
  done
}

classify() {
  set +x
  pushd /mnt/$USER/AMDSEV/logs
  while read file; do
    tail -1 $file | grep -h .
  done < <(find -type f) | sort | uniq -c
}

set -x
case "$1" in
  setup)
    setup
    ;;
  test)
    runtest
    ;;
  classify)
    classify
    ;;
  "")
    setup
    runtest 
    ;;
esac