microsoft/mu_feature_ffa
Publicmirrored fromhttps://github.com/microsoft/mu_feature_ffaAvailable
FfaFeaturePkg/Library/TestServiceLibRust/src/test_svc.rs
78lines · modecode
| 1 | use ec_service_lib::{Result, Service}; |
| 2 | use log::{debug, error}; |
| 3 | use odp_ffa::{DirectMessagePayload, HasRegisterPayload, MsgSendDirectReq2, MsgSendDirectResp2}; |
| 4 | use odp_ffa::{Function, NotificationSet}; |
| 5 | use uuid::{uuid, Uuid}; |
| 6 | |
| 7 | // Protocol CMD definitions for Test |
| 8 | #[allow(dead_code)] |
| 9 | const TEST_OPCODE_BASE: u64 = 0xDEF0; |
| 10 | const TEST_OPCODE_TEST_NOTIFICATION: u64 = 0xDEF1; |
| 11 | |
| 12 | /* Test Service Defines */ |
| 13 | const DELAYED_SRI_BIT_POS: u64 = 1; |
| 14 | |
| 15 | #[derive(Default)] |
| 16 | struct GenericRsp { |
| 17 | status: i64, |
| 18 | } |
| 19 | |
| 20 | impl From<GenericRsp> for DirectMessagePayload { |
| 21 | fn from(value: GenericRsp) -> Self { |
| 22 | DirectMessagePayload::from_iter(value.status.to_le_bytes()) |
| 23 | } |
| 24 | } |
| 25 | |
| 26 | #[derive(Default)] |
| 27 | pub struct Test {} |
| 28 | |
| 29 | impl Test { |
| 30 | pub fn new() -> Self { |
| 31 | Self::default() |
| 32 | } |
| 33 | |
| 34 | fn notification_handler(&self, msg: &MsgSendDirectReq2) -> GenericRsp { |
| 35 | // Grab the uuid from the message, they will be at x5 and x6 |
| 36 | let payload = msg.payload(); |
| 37 | let sender_uuid = Uuid::from_u128_le(((payload.register_at(2) as u128) << 64) | (payload.register_at(1) as u128)); |
| 38 | let cookie = payload.register_at(3); |
| 39 | let flag = 1 << DELAYED_SRI_BIT_POS; |
| 40 | let bit_pos = 1 << cookie; |
| 41 | |
| 42 | debug!("notification_handler for {:?}", sender_uuid); |
| 43 | |
| 44 | // Set up notification through the Notify service |
| 45 | // TODO; |
| 46 | // let notify_msg = MsgSendDirectReq2::new( |
| 47 | // Function::Notify, |
| 48 | // 0) |
| 49 | NotificationSet::new(msg.source_id(), msg.destination_id(), flag, bit_pos) |
| 50 | .exec() |
| 51 | .unwrap(); |
| 52 | |
| 53 | GenericRsp { |
| 54 | status: 0x0, |
| 55 | } |
| 56 | } |
| 57 | } |
| 58 | |
| 59 | impl Service for Test { |
| 60 | const UUID: Uuid = uuid!("e0fad9b3-7f5c-42c5-b2ee-b7a82313cdb2"); |
| 61 | const NAME: &'static str = "Test"; |
| 62 | |
| 63 | fn ffa_msg_send_direct_req2(&mut self, msg: MsgSendDirectReq2) -> Result<MsgSendDirectResp2> { |
| 64 | let payload = msg.payload(); |
| 65 | let cmd = payload.u64_at(0); |
| 66 | debug!("Received Test command 0x{:x}", cmd); |
| 67 | |
| 68 | let payload = match cmd { |
| 69 | TEST_OPCODE_TEST_NOTIFICATION => DirectMessagePayload::from(self.notification_handler(&msg)), |
| 70 | _ => { |
| 71 | error!("Unknown Test Command: {}", cmd); |
| 72 | return Err(odp_ffa::Error::Other("Unknown Test Command")); |
| 73 | } |
| 74 | }; |
| 75 | |
| 76 | Ok(MsgSendDirectResp2::from_req_with_payload(&msg, payload)) |
| 77 | } |
| 78 | } |
| 79 | |