docs: rust: update description of crates

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Paolo Bonzini 2025-02-14 13:25:05 +01:00
parent 7a2e40866c
commit 29b9a66f91

View file

@ -139,16 +139,22 @@ anymore.
Writing Rust code in QEMU
-------------------------
Right now QEMU includes three crates:
QEMU includes four crates:
* ``qemu_api`` for bindings to C code and useful functionality
* ``qemu_api_macros`` defines several procedural macros that are useful when
writing C code
* ``pl011`` (under ``rust/hw/char/pl011``) is the sample device that is being
used to further develop ``qemu_api`` and ``qemu_api_macros``. It is a functional
replacement for the ``hw/char/pl011.c`` file.
* ``pl011`` (under ``rust/hw/char/pl011``) and ``hpet`` (under ``rust/hw/timer/hpet``)
are sample devices that demonstrate ``qemu_api`` and ``qemu_api_macros``, and are
used to further develop them. These two crates are functional\ [#issues]_ replacements
for the ``hw/char/pl011.c`` and ``hw/timer/hpet.c`` files.
.. [#issues] The ``pl011`` crate is synchronized with ``hw/char/pl011.c``
as of commit 02b1f7f61928. The ``hpet`` crate is synchronized as of
commit f32352ff9e. Both are lacking tracing functionality; ``hpet``
is also lacking support for migration.
This section explains how to work with them.