Ingo Molnar <mi...@kernel.org> wrote:

>  arch/x86/include/asm/Kbuild           |   7 ++
>  arch/x86/include/asm/perf_regs.h      |  33 ---------
>  arch/x86/include/asm/svm.h            | 132 
> +---------------------------------
>  arch/x86/include/asm/vmx.h            |  89 +----------------------
>  arch/x86/include/uapi/asm/Kbuild      |   3 +
>  arch/x86/include/uapi/asm/perf_regs.h |  33 +++++++++
>  arch/x86/include/uapi/asm/svm.h       | 132 
> ++++++++++++++++++++++++++++++++++
>  arch/x86/include/uapi/asm/vmx.h       | 109 ++++++++++++++++++++++++++++
>  8 files changed, 289 insertions(+), 249 deletions(-)
> 
> What are these changes - it seems perf and KVM related.

Only in passing.  The header files you indicated are marked as being exported
to userspace in Kbuild - therefore they get disintegrated around __KERNEL__
conditionals just like all the other UAPI-relevant headers.

> Is the latest version above 100% bug-free, with no known 
> problems whatsoever?

It builds perf for me.  No idea if perf works, I've never used it.  I waved a
branch including the patch on top of all my perf patches towards Arnaldo and
others, but I don't know if they've tried it.

I've also checked that x86_64 allyesconfig and i386 allmodconfig build and
that an x86_64 kernel built with my test machine's usual config builds and
boots.

So, no known problems.

David
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