docs/about/deprecated.rst | 7 +++++++ 1 file changed, 7 insertions(+)
Per Daniel suggestion [*]:
> isapc could arguably be restricted to just 32-bit CPU models,
> because we should not need it to support any feature that didn't
> exist prior to circa 1995. eg refuse to start with isapc, if 'lm'
> is present in the CPU model for example.
[*] https://lore.kernel.org/qemu-devel/ZgQkS4RPmSt5Xa08@redhat.com/
Suggested-by: Daniel P. Berrangé <berrange@redhat.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
---
docs/about/deprecated.rst | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/docs/about/deprecated.rst b/docs/about/deprecated.rst
index 7b548519b5..345c35507f 100644
--- a/docs/about/deprecated.rst
+++ b/docs/about/deprecated.rst
@@ -208,6 +208,13 @@ is no longer packaged in any distro making it harder to run the
``check-tcg`` tests. Unless we can improve the testing situation there
is a chance the code will bitrot without anyone noticing.
+64-bit (x86_64) CPUs on the ``isapc`` machine (since 9.0)
+'''''''''''''''''''''''''''''''''''''''''''''''''''''''''
+
+The ``isapc`` machine aims to emulate old PC machine without PCI was
+generalized, so hardware available around 1995, before 64-bit intel
+CPUs were produced.
+
System emulator machines
------------------------
--
2.41.0
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On Wed, Mar 27, 2024 at 04:35:17PM +0100, Philippe Mathieu-Daudé wrote: > Per Daniel suggestion [*]: > > > isapc could arguably be restricted to just 32-bit CPU models, > > because we should not need it to support any feature that didn't > > exist prior to circa 1995. eg refuse to start with isapc, if 'lm' > > is present in the CPU model for example. > > [*] https://lore.kernel.org/qemu-devel/ZgQkS4RPmSt5Xa08@redhat.com/ > > Suggested-by: Daniel P. Berrangé <berrange@redhat.com> > Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org> > --- > docs/about/deprecated.rst | 7 +++++++ > 1 file changed, 7 insertions(+) > > diff --git a/docs/about/deprecated.rst b/docs/about/deprecated.rst > index 7b548519b5..345c35507f 100644 > --- a/docs/about/deprecated.rst > +++ b/docs/about/deprecated.rst > @@ -208,6 +208,13 @@ is no longer packaged in any distro making it harder to run the > ``check-tcg`` tests. Unless we can improve the testing situation there > is a chance the code will bitrot without anyone noticing. > > +64-bit (x86_64) CPUs on the ``isapc`` machine (since 9.0) > +''''''''''''''''''''''''''''''''''''''''''''''''''''''''' > + > +The ``isapc`` machine aims to emulate old PC machine without PCI was > +generalized, so hardware available around 1995, before 64-bit intel > +CPUs were produced. > + > System emulator machines > ------------------------ I would expect there to be a 'warn_report()' added to the isapc init code somewhere to go along with this, that will later be turned into an 'error_report' once the deprecation period is over. With regards, Daniel -- |: https://berrange.com -o- https://www.flickr.com/photos/dberrange :| |: https://libvirt.org -o- https://fstop138.berrange.com :| |: https://entangle-photo.org -o- https://www.instagram.com/dberrange :|
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