Re: [PATCH] x86/Intel: insert Ice Lake and Comet Lake model numbers

[Roger Pau Monné <roger.pau@xxxxxxxxxx>]

On Fri, Jun 05, 2020 at 09:51:09AM +0200, Jan Beulich wrote:
> Both match prior generation processors as far as LBR and C-state MSRs
> go (SDM rev 072) as well as applicability of the if_pschange_mc erratum
> (recent spec updates).
> 
> Signed-off-by: Jan Beulich <jbeulich@xxxxxxxx>
> ---
> Such changes having been subject to backporting in the past, this
> change may want considering for 4.14.
> ---
> I'm leaving alone spec_ctrl.c, albeit there's a scary looking erratum
> for Ice Lake indicating that MDS_NO may wrongly be set. But this is
> apparently addressed by ucode update, so we may not need to deal with
> it in software.
> 
> --- a/xen/arch/x86/acpi/cpu_idle.c
> +++ b/xen/arch/x86/acpi/cpu_idle.c

What about mwait-idle? I guess we pick that from Linux and no patch
has been added so far?

Thanks, Roger.