[PATCH v1 03/14] RISC-V: paravirt: Implement steal-time support

[Conor Dooley]

On Tue, Dec 05, 2023 at 07:11:23PM +0100, Andrew Jones wrote:

> +static int sbi_sta_steal_time_set_shmem(unsigned long lo, unsigned long hi,
> +					unsigned long flags)
>  {
> +	struct sbiret ret;
> +
> +	ret = sbi_ecall(SBI_EXT_STA, SBI_EXT_STA_STEAL_TIME_SET_SHMEM,
> +			lo, hi, flags, 0, 0, 0);
> +	if (ret.error) {
> +		if (lo == SBI_STA_SHMEM_DISABLE && hi == SBI_STA_SHMEM_DISABLE)
> +			pr_warn("Failed to disable steal-time shmem");
> +		else
> +			pr_warn("Failed to set steal-time shmem");
> +		return -ENOMEM;

btw, how come this is an ENOMEM and not a propagation of the error from
the ecall?

> +	}
> +
>  	return 0;
>  }
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