Re: [Qemu-devel] [RFC PATCH v0 2/9] cpu: Store CPU typename in MachineState

[Igor Mammedov <imammedo@redhat.com>]

On Tue, 15 Dec 2015 14:08:09 +0530
Bharata B Rao <bharata@linux.vnet.ibm.com> wrote:

> On Mon, Dec 14, 2015 at 03:29:49PM -0200, Eduardo Habkost wrote:
> > On Thu, Dec 10, 2015 at 11:45:37AM +0530, Bharata B Rao wrote:
> > > Storing CPU typename in MachineState lets us to create CPU threads
> > > for all architectures in uniform manner from arch-neutral code.
> > > 
> > > TODO: Touching only i386 and spapr targets for now
> > > 
> > > Signed-off-by: Bharata B Rao <bharata@linux.vnet.ibm.com>
> > 
> > Suggestions:
> > 
> > * Name the field "cpu_base_type" to indicate it is the base CPU
> >   class name, not the actual CPU class name used when creating
> >   CPUs.
> > * Put it in MachineClass, as it may be useful for code that
> >   runs before machine->init(), in the future.
> 
> Ok.
> 
> > * Maybe make it a CPUClass* field instead of a string?
> 
> In the current use case, this base cpu type string is being passed
> to cpu_generic_init(const char *typename, const char *cpu_model)
> to create boot time CPUs with given typename and cpu_mode. So for now
> the string makes sense for use case.
> 
> Making it CPUClass* would necessiate more changes to
> cpu_generic_init().
how about actually leaving it as "cpu_type" and putting in it
actual cpu type that could be used with device_add().

that would get rid of keeping and passing around intermediate cpu_model.

> 
> Regards,
> Bharata.
> 
>