reproduce (this is a W=1 build): git clone https://github.com/intel/lkp-tests.git ~/lkp-tests # https://github.com/intel/tdx/commit/9cf78ea6bd2d11c2f86e94a416ddcf6797a60602 git remote add intel-tdx https://github.com/intel/tdx.git git fetch --no-tags intel-tdx tdx_kvm_dev-2024-08-01-rebase git checkout 9cf78ea6bd2d11c2f86e94a416ddcf6797a60602 # save the config file mkdir build_dir && cp config build_dir/.config COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang-18 ~/lkp-tests/kbuild/make.cross W=1 O=build_dir ARCH=x86_64 olddefconfig COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang-18 ~/lkp-tests/kbuild/make.cross W=1 O=build_dir ARCH=x86_64 SHELL=/bin/bash arch/x86/kvm/