2016-10-06 18:33+0300, Michael S. Tsirkin: > On Thu, Oct 06, 2016 at 11:51:42AM -0300, Eduardo Habkost wrote: >> On Wed, Oct 05, 2016 at 03:06:56PM +0200, Radim Krčmář wrote: >> > QEMU 2.7 allowed EIM even in configurations that were forbidden in the >> > last patch because they were not working, like old KVM or userspace >> > APIC. In order to keep backward compatibility, we again allow guests to >> > misbehave in non-obvious ways, and make it the default for old machine >> > types. >> > >> > A user can enable the buggy mode it with "buggy_eim=on", which is weird, >> > but I don't know how to add a private property. >> >> Properties et by compat_props are always user-visible. I believe >> that's a feature (this way, it will be possible to let management >> software and other tools know what exactly is behind a >> machine-type). > > There's a rule that any name beginning with x- is deemed > experimental. See docs/qmp-spec.txt. > It is a good idea to always use this for compat properties as > we want to be able to drop them when we drop the old > machine type.
"x-buggy-eim" should deter most users, thanks. pc-0.10 seems to be the first machine type ever (2009), is there already a plan to deprecate it?
