[Bug 203543] Starting with kernel 5.1.0-rc6, kvm_intel can no longer be loaded in nested kvm/guests

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https://bugzilla.kernel.org/show_bug.cgi?id=203543

--- Comment #12 from Sean Christopherson (sean.j.christopherson@xxxxxxxxx) ---
On Tue, May 21, 2019 at 01:37:42PM +0000, bugzilla-daemon@xxxxxxxxxxxxxxxxxxx
wrote:
> https://bugzilla.kernel.org/show_bug.cgi?id=203543
> 
> --- Comment #10 from moi@xxxxxxxxxxxxx ---
> Reverting both commits solves this problem:
> 
> f93f7ede087f2edcc18e4b02310df5749a6b5a61
> e51bfdb68725dc052d16241ace40ea3140f938aa

Hmm, that makes no sense, f93f7ede087f is a straight revert of
e51bfdb68725.  I do see the same behavior on v5.2-rc1 where hiding the
pmu from L1 breaks nested virtualization, but manually reverting both
commits doesn't change that for me, i.e. there's another bug lurking,
which I'll start hunting.

Any chance the successful test used a different command line or something?

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