Expand description
Chapter 15. Nested Acceleration Extension (EID #0x4E41434C “NACL”).
Modules§
- feature_
id - Nested Acceleration Feature ID.
- shmem_
size - Size of shared memory set by supervisor software for current hart.
Constants§
- EID_
NACL - Extension ID for Nested Acceleration Extension.
- PROBE_
FEATURE - Function ID to probe a nested acceleration feature.
- SET_
SHMEM - Function ID to set and enable the shared memory for nested acceleration on the calling hart.
- SYNC_
CSR - Function ID to synchronize CSRs in the nested acceleration shared memory.
- SYNC_
HFENCE - Function ID to synchronize HFENCEs in the nested acceleration shared memory.
- SYNC_
SRET - Function ID to synchronize CSRs and HFENCEs in the nested acceleration shared memory and emulate the SRET instruction.