Host build log:
[root@SPR01 kinetic]# cd  tools/testing/
[root@SPR01 testing]# ls
crypto  cxl  fault-injection  ktest  kunit  memblock  nvdimm  radix-tree  scatterlist  selftests  vsock
[root@SPR01 testing]# cd selftests/
[root@SPR01 selftests]# ls
alsa          drivers               ir                    lib.mk                mqueue         pstore            sigaltstack            tpm2
arm64         efivarfs              kcmp                  livepatch             nci            ptp               size                   uevent
bpf           exec                  kexec                 lkdtm                 net            ptrace            sparc64                user
breakpoints   filesystems           kmod                  locking               netfilter      rcutorture        splice                 user_events
capabilities  firmware              kselftest             Makefile              nsfs           resctrl           static_keys            vDSO
cgroup        fpu                   kselftest_deps.sh     media_tests           ntb            rlimits           sync                   vm
clone3        ftrace                kselftest.h           membarrier            openat2        rseq              syscall_user_dispatch  watchdog
core          futex                 kselftest_harness.h   memfd                 perf_events    rtc               sysctl                 wireguard
cpufreq       gen_kselftest_tar.sh  kselftest_install.sh  memory-hotplug        pidfd          run_kselftest.sh  tc-testing             x86
cpu-hotplug   gpio                  kselftest_module.h    mincore               pid_namespace  safesetid         tdx                    zram
damon         ia64                  kvm                   mount                 powerpc        sched             timens
dma           intel_pstate          landlock              mount_setattr         prctl          seccomp           timers
dmabuf-heaps  ipc                   lib                   move_mount_set_group  proc           sgx               tmpfs
[root@SPR01 selftests]# cd tdx/
[[root@SPR01 kinetic]# cd tools/testing/selftests/tdx
[root@SPR01 tdx]# ls
config  Makefile  tdx_guest_test  tdx_guest_test.c
[root@SPR01 tdx]# date
Sat Feb 25 07:57:41 EST 2023
[root@SPR01 tdx]#
[root@SPR01 tdx]# virt-copy-in --help
[root@SPR01 tdx]# virt-copy-in --help
[root@SPR01 tdx]#
[root@SPR01 tdx]# pwd
/home/zhiming/ubuntuv2/ubuntu_23.04/kinetic/tools/testing/selftests/tdx
[root@SPR01 tdx]# ls
config  Makefile  tdx_attest_test  tdx_attest_test.c  tdx_guest_test.c
[root@SPR01 tdx]# ls -l
total 1684
-rw-r--r-- 1 root root      25 Feb 24 23:48 config
-rw-r--r-- 1 root root     255 Feb 24 23:48 Makefile
-rwxr-xr-x 1 root root 1701152 Feb 25 05:06 tdx_attest_test
-rw-r--r-- 1 root root    3994 Feb 24 23:48 tdx_attest_test.c
-rw-r--r-- 1 root root    4652 Feb 25 04:02 tdx_guest_test.c
[root@SPR01 tdx]#