[kvm-unit-tests PATCH v5 25/29] powerpc: Add rtas stop-self support

[Thomas Huth]

On 16/12/2023 14.42, Nicholas Piggin wrote:
> In preparation for improved SMP support, add stop-self support to the
> harness. This is non-trivial because it requires an unlocked rtas
> call: a CPU can't be holding a spin lock when it goes offline or it
> will deadlock other CPUs. rtas permits stop-self to be called without
> serialising all other rtas operations.
> 
> Signed-off-by: Nicholas Piggin <npiggin at gmail.com>
> ---
>   lib/powerpc/asm/rtas.h |  2 ++
>   lib/powerpc/rtas.c     | 78 +++++++++++++++++++++++++++++++++---------
>   2 files changed, 64 insertions(+), 16 deletions(-)
...
> +void rtas_stop_self(void)
> +{
> +	struct rtas_args args;
> +	uint32_t token;
> +	int ret;
> +
> +	ret = rtas_token("stop-self", &token);
> +	if (ret) {
> +		puts("RTAS stop-self not available\n");
> +		return;
> +	}
> +
> +	ret = rtas_call_unlocked(&args, token, 0, 1, NULL);
> +	printf("RTAS stop-self returnd %d\n", ret);

s/returnd/returned/

> +}

With the typo fixed:

Reviewed-by: Thomas Huth <thuth at redhat.com>