On 02/08/2022 00:12, Elliot Berman wrote:
Add initial support to perform Gunyah hypercalls. The arm64 ABI for
Gunyah hypercalls generally follows the SMC Calling Convention.
Seeing a c&p (or c&rework) from arm-smccc.h, could you please describe:
1) Why can't you use the existing arm_smccc_1_1_hvc()? I checked, you don't seem to be getting more than 4 values back.
2) If #1 is not possible, why can't you add necessary glue code to the arm-smccc.h (as your code to support nargs/multiple return values is generic enough) and use corresponding macro in asm/gunyah.h ?
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With best wishes
Dmitry