As a workaround fix, I used the built AMDSEV OVMF.fd from the OVMF
source code extracted from the Ubuntu Plucky Package.
I built the AMDSEV-SNP VM OVMF from the OVMF plucky ubuntu package using
the following steps:
Step 1: Get OVMF Source code from the Ubuntu Plucky Package
apt-get source ovmf
Step 2: Build AMD-SNP OVMF for SNP VM measure direct boot based on the below
link:
https://github.com/tianocore/tianocore.github.io/wiki/Common-instructions
a) Pre-Install OVMF Dependencies to setup EDK2 Build Environment
sudo apt install build-essential uuid-dev iasl git nasm
python-is-python3
b) Compile build tools
$ cd edk2-2025.02/
$ make -C BaseTools
$ export EDK_TOOLS_PATH=$HOME/edk2-2025.02/BaseTools
$ ./edksetup.sh
When the above steps are done, we can work in the edk2 directory for
code development.
c) Build the EDK II BaseTools
$ make -C edk2/BaseTools
d) Setup build shell environment
$ cd edk2-2025.02/
$ export EDK_TOOLS_PATH=$HOME/src/edk2/BaseTools
# Below command populates edk2/Conf directory with the default
configuration files
$ . edksetup.sh BaseTools
e) Modify Conf files to build AMDSEV OVMF.fd firmwar for SNP remote
attestation and secret injection purposes.
# Create GRUB file under AmdSev to build AmdSev firmware without
error
$ touch OvmfPkg/AmdSev/Grub/grub.efi
# Modify Conf/target.txt to build AMDSEV Firmware
# In the Conf/target.txt,
# Set the build platform, target architecture, tool chain, and
multi-threading options as follows:
ACTIVE_PLATFORM = OvmfPkg/AmdSev/AmdSevX64.dsc
TARGET_ARCH = X64
TOOL_CHAIN_TAG = GCC5
# Build AMDSEV OVMF Firmware
build
# After build, OVMF firmware for SNP VM measured boot is located at
Build/AmdSev/DEBUG_GCC5/FV/OVMF.fd inside edk2 source directory
** Attachment added: "This screenshot shows the ubuntu OVMF fix for the
successful SNP QEMU direct measure linux boot"
https://bugs.launchpad.net/ubuntu/+source/edk2/+bug/2106771/+attachment/5870969/+files/plukcy-ovmf-fix-in-snp-qemu-cmdline.png
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https://bugs.launchpad.net/bugs/2106771
Title:
Add support for QEMU AMD SNP VM Measured linux boot with the addition
of new AMDSEV OVMF.fd
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