On 02/03/2023 23.16, Philippe Mathieu-Daudé wrote:
On 2/3/23 17:31, Thomas Huth wrote:
qemu-system-aarch64 is a proper superset of qemu-system-arm, and the latter was mainly still required for 32-bit KVM support. But this 32-bit KVM arm support has been dropped in the Linux kernel a couple of years ago already, so we don't really need qemu-system-arm anymore, thus deprecated it now.
Signed-off-by: Thomas Huth <thuth@redhat.com> --- docs/about/deprecated.rst | 10 ++++++++++ 1 file changed, 10 insertions(+)
diff --git a/docs/about/deprecated.rst b/docs/about/deprecated.rst index a30aa8dfdf..21ce70b5c9 100644 --- a/docs/about/deprecated.rst +++ b/docs/about/deprecated.rst @@ -45,6 +45,16 @@ run 32-bit guests by selecting a 32-bit CPU model, including KVM support on x86_64 hosts. Thus users are recommended to reconfigure their systems to use the ``qemu-system-x86_64`` binary instead. +``qemu-system-arm`` binary (since 8.0) +'''''''''''''''''''''''''''''''''''''' + +``qemu-system-aarch64`` is a proper superset of ``qemu-system-arm``. The +latter was mainly a requirement for running KVM on 32-bit arm hosts, but +this 32-bit KVM support has been removed some years ago already (see:
s/some/few/?
I can also use "three years ago" since the patch had been merged in March 2020.
+https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?i...
+). Thus the QEMU project will drop the ``qemu-system-arm`` binary in a +future release. Use ``qemu-system-aarch64`` instead.
If we unify, wouldn't it be simpler to name the single qemu-system binary emulating various ARM architectures as 'qemu-system-arm'?
That would be more intuitive for people who are completely new to QEMU, but I guess it will cause a lot of "you broke my script that uses the -aarch64 binary" troubles again. So I think it's likely better to not go down that road. Thomas