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67 lines
2.3 KiB
Markdown
67 lines
2.3 KiB
Markdown
# Bare-metal SNP setup for Constellation
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## Prepare Host
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The bare-metal host machine needs to be able to start SEV-SNP VMs.
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A thorough explanation can be found here: <https://github.com/AMDESE/AMDSEV/tree/snp-latest>.
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First checkout the snp-latest branch:
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```bash
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git clone https://github.com/AMDESE/AMDSEV.git
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cd AMDSEV
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git checkout snp-latest
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```
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Then enable TPM2 support by setting `-DTPM2_ENABLE` in the OVMF build command
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found in `common.sh`:
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```patch
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diff --git a/common.sh b/common.sh
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index 9eee947..52bf507 100755
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--- a/common.sh
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+++ b/common.sh
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@@ -155,7 +155,7 @@ build_install_ovmf()
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GCCVERS="GCC5"
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fi
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- BUILD_CMD="nice build -q --cmd-len=64436 -DDEBUG_ON_SERIAL_PORT=TRUE -n $(getconf _NPROCESSORS_ONLN) ${GCCVERS:+-t $GCCVERS} -a X64 -p OvmfPkg/OvmfPkgX64.dsc"
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+ BUILD_CMD="nice build -q --cmd-len=64436 -DTPM2_ENABLE -DDEBUG_ON_SERIAL_PORT=TRUE -n $(getconf _NPROCESSORS_ONLN) ${GCCVERS:+-t $GCCVERS} -a X64 -p OvmfPkg/OvmfPkgX64.dsc"
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# initialize git repo, or update existing remote to currently configured one
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if [ -d ovmf ]; then
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```
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Build and package the binaries. Then install the newly build kernel:
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```bash
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./build.sh --package
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cd linux
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dpkg -i linux-image-6.9.0-rc7-snp-host-05b10142ac6a_6.9.0-rc7-g05b10142ac6a-2_amd64.deb
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```
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Reboot, verify that the right BIOS setting are set as described in
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<https://github.com/AMDESE/AMDSEV/tree/snp-latest?tab=readme-ov-file#prepare-host>
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and select the new kernel in the boot menu. Note that GRUB usually automatically
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select the newest installed kernel as default.
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Download a Constellation qemu image, the `constellation-conf.yaml`, and
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the `launch-constellation.sh` script in the directory right next to the
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`AMDSEV` folder.
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```bash
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wget https://raw.githubusercontent.com/edgelesssys/constellation/main/dev-docs/howto/bare-metal/launch-constellation.sh
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wget https://cdn.confidential.cloud/constellation/v1/ref/main/stream/console/v2.17.0-pre.0.20240516182331-5fb2a2cb89f2/image/csp/qemu/qemu-vtpm/image.raw
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wget < link to the constellation CLI provided by Edgeless >
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wget < link to the constellation config provided by Edgeless >
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```
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Install and setup [docker](https://docs.docker.com/engine/install/),
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install swtpm, dnsmasq and tmux.
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Then simply run:
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```bash
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sudo ./launch-constellation.sh
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```
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