Signed-off-by: Jiaqi Gao <jiaqi.gao@intel.com>

According to https://github.com/rust-fuzz/afl.rs, it requires user
to install `cargo-afl` binary.

Signed-off-by: Jiaqi Gao <jiaqi.gao@intel.com>

Zero mask here meant the 6th bit shall be 0 for ring0. When the
structure is used for non ring0 privileges, the corresponding
flag needs to be set.

Signed-off-by: Jiaqi Gao <jiaqi.gao@intel.com>

It is important to use `repr(C)` layout for structures that are
used for decoding/encoding from/into bytes.

Signed-off-by: Jiaqi Gao <jiaqi.gao@intel.com>

The array address inside a structure may change when using the
`TdxReportBuf` on the latest rust toolchain.

alternatively, we can allocate aligned memory on heap for the
`TDCALL.REPORT`. The memory is manually allocated when new() is
called and it will be freed at the end of its lifetime.

Signed-off-by: Jiaqi Gao <jiaqi.gao@intel.com>

Update the kernel, qemu and cloud hypervisor used by the CI and
the TD launch command.

Timeout is relaxed due to the known performance regression on
kernel 6.2.

Signed-off-by: Jiaqi Gao <jiaqi.gao@intel.com>