On Sat, 2019-08-17 at 05:24 +, Anthony Wong wrote:
> On Sat, Aug 17, 2019 at 1:05 AM Srinivas Pandruvada <
> srinivas.pandruv...@linux.intel.com> wrote:
>
> > The patch for changing TCC offset can only be in for 5.4 kernel.
> > Then
> > there will be no MSR access.
> >
>
> Is it https://lkml.org/lkml/2019/7/22/1286? Should it work when
> system is
> locked down?
Yes.
>
>
> > So the option is to take out of mainline kernel patch to avoid this
> > or
> > avoid workaround option.
> >
>
> Isn't the workaround option no longer applies to TCC offset
> adjustment?
TCC adjustment is required for some platform, so either we wait for
kernel patch merged or live with lock down errors with MSR accesses.
Thanks,
Srinivas
>
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https://bugs.launchpad.net/bugs/1840454
Title:
kernel 5.2 disallows thermald's direct MSR writes
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