Messages in this thread | | | Date | Wed, 31 Jan 2018 17:28:46 +0100 | From | Borislav Petkov <> | Subject | Re: [RFC,05/10] x86/speculation: Add basic IBRS support infrastructure |
| |
On Wed, Jan 31, 2018 at 12:44:41PM -0200, Eduardo Habkost wrote: > Also, if anybody don't like it, users can already specify, e.g., > "Broadwell,-hle,-rtm" or "Skylake,+spec_ctrl". > > QEMU only adds have the -noTSX and -IBRS CPU for convenience of > management systems that don't know how to check/configure > individual CPU features. We're working with libvirt and > OpenStack folks to make this kind of trick unnecessary.
Yeah, defining separate CPU models just for that seems hacky. The +/-<feature> specification looks like the Right Thing(tm) to do.
-- Regards/Gruss, Boris.
SUSE Linux GmbH, GF: Felix Imendörffer, Jane Smithard, Graham Norton, HRB 21284 (AG Nürnberg) --
| |