[PATCH 1/2] aarch64: Lock GCS with glibc.cpu.aarch64_gcs_lock tunable

[Mark Brown]

On Fri, Dec 19, 2025 at 09:20:43AM -0300, Adhemerval Zanella Netto wrote:

> I am not sure we are in the same position regarding GCS deployment.  There
> are no processors currently available in the consumer or server market with
> GCS support, no commercial or community distro with GCS enabled, and I would
> expect that any deployment would require the GCS locking state fix.

That's my expectation too, by the time anyone is actually using this I'd
expect them to be using a kernel which does the right thing.  I'd expect
any requirement for relaxation to be due to people doing something fancy
that needs to turn on stack writability or (more likely) pushing.
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