sbi_mpxy_send_message_withresp()- Disable preemption (
get_cpu()). - Shared memory is per-core. We only need to disable the preemption to prevent the shared memory of current CPU from being corrupted by the other tasks.
- Issue SBI call:
SBI_EXT_MPXY_SEND_MSG_WITH_RESPwith message ID:OPTEED_MSG_COMMUNICATE(0x1) to send the message totdomainand get the response. - This will switch to OpenSBI: If message ID is
OPTEED_MSG_COMMUNICATE(0x1) (Called fromudomain):. OpenSBI will then switch to thetdomain. - Enable preemption (
put_cpu()).
sbi_mpxy_send_message_withresp()c
Loading...