| ##------------------------------------------------------------------------------ | |
| # | |
| # SpeculationBarrier() for RISCV64 | |
| # | |
| # Copyright (c) 2023, Intel Corporation. All rights reserved. | |
| # | |
| # SPDX-License-Identifier: BSD-2-Clause-Patent | |
| # | |
| ##------------------------------------------------------------------------------ | |
| .text | |
| .p2align 2 | |
| ASM_GLOBAL ASM_PFX(SpeculationBarrier) | |
| #/** | |
| # 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 | |
| # ); | |
| # | |
| ASM_PFX(SpeculationBarrier): | |
| fence rw,rw | |
| fence.i | |
| fence r,r | |
| ret |