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From: Alex =?utf-8?Q?Benn=C3=A9e?= <alex.bennee@linaro.org>
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Date: Mon, 12 Sep 2016 15:20:30 +0100
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Subject: Re: [Qemu-devel] [PATCH v3 07/34] HACK: Always enable parallel_cpus
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To: Richard Henderson <rth@twiddle.net>
Cc: qemu-devel@nongnu.org


Richard Henderson <rth@twiddle.net> writes:

> This is really just a placeholder for an actual
> command-line switch for mttcg.
> ---
>  translate-all.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/translate-all.c b/translate-all.c
> index f97fc1e..d6d879c 100644
> --- a/translate-all.c
> +++ b/translate-all.c
> @@ -119,7 +119,7 @@ static void *l1_map[V_L1_SIZE];
>
>  /* code generation context */
>  TCGContext tcg_ctx;
> -bool parallel_cpus;
> +bool parallel_cpus = 1;

s/1/true/ but...

As mentioned on the previous version we can also skip parallel_cpus for
single threaded linux-user code. This will be easier once the async safe
work is merged so we can flip the flag and trigger a safe tb_flush()
once the linux-user guest does its first clone().

>
>  /* translation block context */
>  #ifdef CONFIG_USER_ONLY


--
Alex Bennée