a simple work flow to verify based on latest release tag of kernel source code
current target is mainline linux_next repo: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git
step 0: create $KERNEL_PATH if not exists and git clone from linux-next repo
step 1: git checkout to latest release tag $TAG from above branch
step 2: ./scripts/config revise CONFIG_INTEL_TDX_GUEST=y and append tag info $TAG to CONFIG_LOCALVERSION
step 3: compile kernel and cp it as bzImage.$TAG
step 4: bootup legacy VM to prepare guest image
step 5: pass above kernel bzImage to td_guest_boot.sh for TD guest booting test