Re: [Xen-devel] [PATCH v1 for 4.7] x86/cpuid: fix raw FEATURESET_7d0 reporting

["Jan Beulich" <JBeulich@xxxxxxxx>]

>>> On 15.05.18 at 10:37, <sergey.dyasli@xxxxxxxxxx> wrote:
> Commit 62b1879693e0 ("x86: further CPUID handling adjustments") added
> FEATURESET_7d0 reporting but forgot to update calculate_raw_featureset()
> function. As result, the value reported by xen-cpuid contains 0.
> 
> Fix that by properly filling raw_featureset[FEATURESET_7d0].
> 
> Signed-off-by: Sergey Dyasli <sergey.dyasli@xxxxxxxxxx>

Thanks, technically
Acked-by: Jan Beulich <jbeulich@xxxxxxxx>

> ---
> I see that at least 4.8 also contains this bug, so other releases also
> need checking.

The commit in question being only on the two branches, I think no other one
would need the change.

I'm certainly going to apply this to 4.8; I'm uncertain about 4.7 though, if 
it's
really only xen-cpuid output which is now wrong. I wasn't really planning on
putting there any further non-security changes (severe regression fixes for
earlier security patches perhaps being the only possible exception). Otoh
osstest continues to be unhappy with the branch (albeit that's mostly
environmental issues iirc, i.e. "broken" rather than "failed" tests), so us
being able to push out 4.7.6 continues to be delayed.

Jan



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