16 Aug
2024
16 Aug
'24
11:10 a.m.
On Thu, Aug 01, 2024 at 01:06:34PM +0100, Mark Brown wrote:
Define C callable functions for GCS instructions used by the kernel. In order to avoid ambitious toolchain requirements for GCS support these are manually encoded, this means we have fixed register numbers which will be a bit limiting for the compiler but none of these should be used in sufficiently fast paths for this to be a problem.
Note that GCSSTTR is used to store to EL0.
Reviewed-by: Thiago Jung Bauermann thiago.bauermann@linaro.org Signed-off-by: Mark Brown broonie@kernel.org
Acked-by: Catalin Marinas catalin.marinas@arm.com