Re: [RFC,05/10] x86/speculation: Add basic IBRS support infrastructure

[Dr. David Alan Gilbert]

* Borislav Petkov (bp@xxxxxxx) wrote:
> On Wed, Jan 31, 2018 at 11:04:07AM +0000, Dr. David Alan Gilbert wrote:
> > That half is the easy bit, we've already got that (thanks to Eduardo),
> > QEMU has -IBRS variants of CPU types, so if you start a VM with
> > -cpu Broadwell-IBRS
> 
> Eww, a CPU model with a specific feature bit. I hope you guys don't add
> a model like that for every CPU feature.

Indeed, it's only for this weird case where you suddenly need to change
it.

Dave

> -- 
> Regards/Gruss,
>     Boris.
> 
> SUSE Linux GmbH, GF: Felix Imendörffer, Jane Smithard, Graham Norton, HRB 21284 (AG Nürnberg)
> -- 
--
Dr. David Alan Gilbert / dgilbert@xxxxxxxxxx / Manchester, UK