| Message ID | 20230302163106.465559-2-thuth@redhat.com (mailing list archive) |
|---|---|
| State | Superseded |
| Headers | show |
| Series | Deprecate support for 32-bit x86 and arm hosts | expand |
On Thu, Mar 02, 2023 at 05:31:01PM +0100, Thomas Huth wrote: > Hardly anybody really requires the i386 binary anymore, since the > qemu-system-x86_64 binary is a proper superset. So let's deprecate > the 32-bit variant now, so that we can finally stop wasting our time > and CI minutes with this. The first sentence isn't quite true wrt to KVM. Change slightly to: Aside from not supporting KVM on 32-bit hosts, the qemu-system-x86_64 binary is a proper superset of the qemu-system-i386 binary. With the 32-bit host support being deprecated, it is now also possible to deprecate the qemu-system-i386 binary. > With regards to 32-bit KVM support in the x86 Linux kernel, > the developers confirmed that they do not need a recent > qemu-system-i386 binary here: > > https://lore.kernel.org/kvm/Y%2ffkTs5ajFy0hP1U@google.com/ > > Signed-off-by: Thomas Huth <thuth@redhat.com> > --- > docs/about/deprecated.rst | 12 ++++++++++++ > 1 file changed, 12 insertions(+) Reviewed-by: Daniel P. Berrangé <berrange@redhat.com> With regards, Daniel
On Thu, 2023-03-02 at 18:05 +0000, Daniel P. Berrangé wrote: > On Thu, Mar 02, 2023 at 05:31:01PM +0100, Thomas Huth wrote: > > Hardly anybody really requires the i386 binary anymore, since the > > qemu-system-x86_64 binary is a proper superset. So let's deprecate > > the 32-bit variant now, so that we can finally stop wasting our > > time > > and CI minutes with this. > > The first sentence isn't quite true wrt to KVM. Change slightly to: > > Aside from not supporting KVM on 32-bit hosts, the qemu-system-x86_64 > binary is a proper superset of the qemu-system-i386 binary. With the > 32-bit host support being deprecated, it is now also possible to > deprecate the qemu-system-i386 binary. > +1 > > With regards to 32-bit KVM support in the x86 Linux kernel, > > the developers confirmed that they do not need a recent > > qemu-system-i386 binary here: > > > > https://lore.kernel.org/kvm/Y%2ffkTs5ajFy0hP1U@google.com/ > > > > Signed-off-by: Thomas Huth <thuth@redhat.com> > > --- > > docs/about/deprecated.rst | 12 ++++++++++++ > > 1 file changed, 12 insertions(+) > > Reviewed-by: Daniel P. Berrangé <berrange@redhat.com> Reviewed-by: Wilfred Mallawa <wilfred.mallawa@wdc.com> > > > With regards, > Daniel
diff --git a/docs/about/deprecated.rst b/docs/about/deprecated.rst index 15084f7bea..11700adac9 100644 --- a/docs/about/deprecated.rst +++ b/docs/about/deprecated.rst @@ -34,6 +34,18 @@ deprecating the build option and no longer defend it in CI. The ``--enable-gcov`` build option remains for analysis test case coverage. +``qemu-system-i386`` binary (since 8.0) +''''''''''''''''''''''''''''''''''''''' + +The ``qemu-system-i386`` binary was mainly useful for running with KVM +on 32-bit x86 hosts, but most Linux distributions already removed their +support for 32-bit x86 kernels, so hardly anybody still needs this. The +``qemu-system-x86_64`` binary is a proper superset and can be used to +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. + + System emulator command line arguments --------------------------------------
Hardly anybody really requires the i386 binary anymore, since the qemu-system-x86_64 binary is a proper superset. So let's deprecate the 32-bit variant now, so that we can finally stop wasting our time and CI minutes with this. With regards to 32-bit KVM support in the x86 Linux kernel, the developers confirmed that they do not need a recent qemu-system-i386 binary here: https://lore.kernel.org/kvm/Y%2ffkTs5ajFy0hP1U@google.com/ Signed-off-by: Thomas Huth <thuth@redhat.com> --- docs/about/deprecated.rst | 12 ++++++++++++ 1 file changed, 12 insertions(+)