KVM: arm64: Move early handlers to per-EC handlers

Simplify the early exception handling by slicing the gigantic decoding
tree into a more managable set of functions, similar to what we have
in handle_exit.c.

This will also make the structure reusable for pKVM's own early exit
handling.

Signed-off-by: Marc Zyngier <maz@kernel.org>
3 files changed