| ;------------------------------------------------------------------------------ | |
| ; | |
| ; SpeculationBarrier() for AArch64 | |
| ; | |
| ; Copyright (c) 2019, Linaro Ltd. All rights reserved. | |
| ; | |
| ; SPDX-License-Identifier: BSD-2-Clause-Patent | |
| ; | |
| ;------------------------------------------------------------------------------ | |
| EXPORT SpeculationBarrier | |
| AREA MemoryBarriers, CODE, READONLY | |
| ;/** | |
| ; Uses as a barrier to stop speculative execution. | |
| ; | |
| ; Ensures that no later instruction will execute speculatively, until all prior | |
| ; instructions have completed. | |
| ; | |
| ;**/ | |
| ;VOID | |
| ;EFIAPI | |
| ;SpeculationBarrier ( | |
| ; VOID | |
| ; ); | |
| ; | |
| SpeculationBarrier | |
| dsb | |
| isb | |
| bx lr | |
| END |