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Re: [Qemu-devel] [PATCH v2 10/10] machine: Skip global registration for
Re: [Qemu-devel] [PATCH v2 10/10] machine: Skip global registration for non-existing classes
Thu, 23 Jun 2016 08:32:11 -0300
On Thu, Jun 23, 2016 at 10:26:49AM +0200, Markus Armbruster wrote:
> Eduardo Habkost <address@hidden> writes:
> > MachineClass::compat_props may point to class names that are not
> > compiled into the QEMU binary. Skip registering those as global
> > properties. This will allow the qdev global property code to
> > implement stricter checks on the global property values in the
> > future.
> > Signed-off-by: Eduardo Habkost <address@hidden>
> Not sure what those stricter checks might be, but that's okay.
> Doesn't this suppress detection of programming errors? Say I fat-finger
> a device name in my machine type's global properties.
We can't detect that, because compat_props is allowed to include
classes that are disabled at build time.
> Before this patch, I get an error (a nice one since PATCH 06).
You don't. The class name validation in qdev_prop_check_globals()
is done only on user-provided properties.