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SubjectRe: [PATCH v9 00/17] Enable FSGSBASE instructions
On Fri, Nov 15, 2019 at 07:29:17PM +0100, Thomas Gleixner wrote:
> On Fri, 4 Oct 2019, Chang S. Bae wrote:
> >
> > Updates from v8 [10]:
> > * Internalized the interrupt check in the helper functions (Andy L.)
> > * Simplified GS base helper functions (Tony L.)
> > * Changed the patch order to put the paranoid path changes before the
> > context switch changes (Tony L.)
> > * Fixed typos (Randy D.) and massaged a few sentences in the documentation
> > * Massaged the FSGSBASE enablement message
>
> That still lacks what Andy requested quite some time ago in the V8 thread:
>
> https://lore.kernel.org/lkml/034aaf3a-a93d-ec03-0bbd-068e1905b774@kernel.org/
>
> "I also think that, before this series can have my ack, it needs an
> actual gdb maintainer to chime in, publicly, and state that they have
> thought about and tested the ABI changes and that gdb still works on
> patched kernels with and without FSGSBASE enabled. I realize that there
> were all kinds of discussions, but they were all quite theoretical, and
> I think that the actual patches need to be considered by people who
> understand the concerns. Specific test cases would be nice, too."
>
> What's the state of this?

Adding Markus.

-Andi

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