[PATCH 0/2] aarch64: Support locking GCS

Yury Khrustalev yury.khrustalev@arm.com
Tue Dec 16 09:59:49 GMT 2025


On Fri, Dec 12, 2025 at 03:46:57PM +0000, Yury Khrustalev wrote:
> Support locking GCS via a new tunable. At the moment GCS status is enabled
> 
> (...snip...)
>
> The caveat is that current released version of the kernel does flush the GCS
> locking state on exec which is required. However, there is a patch for this
> already [1].

The kernel patch has been applied to arm64 (for-next/fixes): [1].

[1]: https://lore.kernel.org/all/176582226393.1756467.9855121048488078844.b4-ty@arm.com/

Thanks,
Yury



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