On 24.11.2023 11:30, Oleksii Kurochko wrote:
> --- /dev/null
> +++ b/xen/arch/riscv/include/asm/nospec.h
> @@ -0,0 +1,25 @@
> +/* SPDX-License-Identifier: GPL-2.0 */
> +/* Copyright 2018 Amazon.com, Inc. or its affiliates. All Rights Reserved. */
> +
> +#ifndef _ASM_RISCV_NOSPEC_H
> +#define _ASM_RISCV_NOSPEC_H
> +
> +static inline bool evaluate_nospec(bool condition)
> +{
> + return condition;
> +}
> +
> +static inline void block_speculation(void)
> +{
> +}
> +
> +#endif /* _ASM_RISCV_NOSPEC_H */
This being identical between Arm, PPC, and now RISC-V, wouldn't this be another
asm-generic/ candidate? (Whether such trivial stubs are copyrightable is, as
per earlier remarks, at least questionable to me.)
Jan
