Re: [Xen-devel] [PATCH v5 05/10] xen/arm: optee: add std call handling

2019-06-03 Thread Julien Grall
Hi Volodymyr, On 21/05/2019 22:26, Volodymyr Babchuk wrote: The main way to communicate with OP-TEE is to issue standard SMCCC call. "Standard" is a SMCCC term and it means that call can be interrupted and OP-TEE can return control to NW before completing the call. In contrast with fast calls,

[Xen-devel] [PATCH v5 05/10] xen/arm: optee: add std call handling

2019-05-21 Thread Volodymyr Babchuk
The main way to communicate with OP-TEE is to issue standard SMCCC call. "Standard" is a SMCCC term and it means that call can be interrupted and OP-TEE can return control to NW before completing the call. In contrast with fast calls, where arguments and return values are passed in registers, stan