On Wed, Nov 29, 2023 at 01:37:53PM +0100, Etienne Carriere wrote:
Change optee driver service enumeration to not enumerate (and allocate a zero sized shared memory buffer) when OP-TEE reports that there is no service to enumerate.
This change fixes an existing issue that occurs when the such zero sized shared memory buffer allocated from malloc() has a physical address of offset 0 of a physical 4kB page. In such case, OP-TEE secure world refuses to register the zero-sized shared memory area and makes U-Boot optee service enumeration to fail.
Fixes: 94ccfb78a4d6 ("drivers: tee: optee: discover OP-TEE services") Signed-off-by: Etienne Carriere etienne.carriere@foss.st.com Reviewed-by: Patrice Chotard patrice.chotard@foss.st.com Reviewed-by: Jens Wiklander jens.wiklander@linaro.org
Applied to u-boot/next, thanks!