| Message ID | 20240327153517.31285-1-philmd@linaro.org (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | [PATCH-for-9.0] hw/i386/pc: Deprecate 64-bit CPUs on ISA-only PC machine | expand |
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
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 ------------------------