diff options
| author | Peter Maydell <peter.maydell@linaro.org> | 2025-08-28 15:04:18 +0100 |
|---|---|---|
| committer | Peter Maydell <peter.maydell@linaro.org> | 2025-09-16 17:31:53 +0100 |
| commit | 5b3764d9e30627853c5b9171925c51232e56a293 (patch) | |
| tree | b1d5de314ab4fe69f225f1861dc281f8e6065a7f /docs | |
| parent | cc2c5027dc755b0b7e2a6531b089e5a239d3e0ce (diff) | |
| download | focaccia-qemu-5b3764d9e30627853c5b9171925c51232e56a293.tar.gz focaccia-qemu-5b3764d9e30627853c5b9171925c51232e56a293.zip | |
target/arm: Remove deprecated pxa CPU family
In 10.0 we deprecated the pxa CPU family (pxa250, pxa255, pxa260 pxa261, pxa262, pxa270-a0, pxa270-a1, pxa270, pxa270-b0, pxa270-b1, pxa270-c0, pxa270-c5). Now we have released 10.1 we can remove them. This commit removes only the top level CPU definitions and updates the documentation. Removing the CPUs means that there is now a lot of dead iwMMXt code, which we will delete in subsequent commits. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Message-id: 20250828140422.3271703-2-peter.maydell@linaro.org
Diffstat (limited to 'docs')
| -rw-r--r-- | docs/about/deprecated.rst | 21 | ||||
| -rw-r--r-- | docs/about/removed-features.rst | 14 |
2 files changed, 14 insertions, 21 deletions
diff --git a/docs/about/deprecated.rst b/docs/about/deprecated.rst index b2420732e1..f031414769 100644 --- a/docs/about/deprecated.rst +++ b/docs/about/deprecated.rst @@ -236,27 +236,6 @@ Keeping 32-bit host support alive is a substantial burden for the QEMU project. Thus QEMU will in future drop the support for all 32-bit host systems. -linux-user mode CPUs --------------------- - -iwMMXt emulation and the ``pxa`` CPUs (since 10.0) -'''''''''''''''''''''''''''''''''''''''''''''''''' - -The ``pxa`` CPU family (``pxa250``, ``pxa255``, ``pxa260``, -``pxa261``, ``pxa262``, ``pxa270-a0``, ``pxa270-a1``, ``pxa270``, -``pxa270-b0``, ``pxa270-b1``, ``pxa270-c0``, ``pxa270-c5``) are no -longer used in system emulation, because all the machine types which -used these CPUs were removed in the QEMU 9.2 release. These CPUs can -now only be used in linux-user mode, and to do that you would have to -explicitly select one of these CPUs with the ``-cpu`` command line -option or the ``QEMU_CPU`` environment variable. - -We don't believe that anybody is using the iwMMXt emulation, and we do -not have any tests to validate it or any real hardware or similar -known-good implementation to test against. GCC is in the process of -dropping their support for iwMMXt codegen. These CPU types are -therefore deprecated in QEMU, and will be removed in a future release. - System emulator CPUs -------------------- diff --git a/docs/about/removed-features.rst b/docs/about/removed-features.rst index fff781d6b7..65fd564d22 100644 --- a/docs/about/removed-features.rst +++ b/docs/about/removed-features.rst @@ -1138,6 +1138,20 @@ reason the maintainers strongly suspected no one actually used it. QEMU Nios II architecture was orphan; Intel has EOL'ed the Nios II processor IP (see `Intel discontinuance notification`_). +iwMMXt emulation and the ``pxa`` CPUs (removed in 10.2) +''''''''''''''''''''''''''''''''''''''''''''''''''''''' + +The ``pxa`` CPU family (``pxa250``, ``pxa255``, ``pxa260``, +``pxa261``, ``pxa262``, ``pxa270-a0``, ``pxa270-a1``, ``pxa270``, +``pxa270-b0``, ``pxa270-b1``, ``pxa270-c0``, ``pxa270-c5``) were +not available in system emulation, because all the machine types which +used these CPUs were removed in the QEMU 9.2 release. We don't +believe that anybody was using the iwMMXt emulation (which you +would have to explicitly enable on the command line), and we did +not have any tests to validate it or any real hardware or similar +known-good implementation to test against. These CPUs have +therefore been removed in linux-user mode as well. + TCG introspection features -------------------------- |