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KVM: remove support for kernel-irqchip=off

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-machine kernel-irqchip=off is broken for many guest OSes; kernel-irqchip=split
is the replacement that works, so remove the deprecated support for the former.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Paolo Bonzini 2022-12-16 10:39:32 +01:00
parent 9d3f8b3247
commit eaaaf8abdc
6 changed files with 25 additions and 15 deletions
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7
docs/about/deprecated.rst
View file

@ -58,13 +58,6 @@ and will cause a warning.
The replacement for the ``nodelay`` short-form boolean option is ``nodelay=on``
rather than ``delay=off``.
Userspace local APIC with KVM (x86, since 6.0)
''''''''''''''''''''''''''''''''''''''''''''''
Using ``-M kernel-irqchip=off`` with x86 machine types that include a local
APIC is deprecated. The ``split`` setting is supported, as is using
``-M kernel-irqchip=off`` with the ISA PC machine type.
hexadecimal sizes with scaling multipliers (since 6.0)
''''''''''''''''''''''''''''''''''''''''''''''''''''''

10
docs/about/removed-features.rst
View file

@ -616,6 +616,16 @@ x86 ``Icelake-Client`` CPU (removed in 7.1)
There isn't ever Icelake Client CPU, it is some wrong and imaginary one.
Use ``Icelake-Server`` instead.
System accelerators
-------------------
Userspace local APIC with KVM (x86, removed 8.0)
''''''''''''''''''''''''''''''''''''''''''''''''
``-M kernel-irqchip=off`` cannot be used on KVM if the CPU model includes
a local APIC. The ``split`` setting is supported, as is using ``-M
kernel-irqchip=off`` when the CPU does not have a local APIC.
System emulator machines
------------------------