On 05/04/16 18:32, Alex Bennée wrote:
> diff --git a/cpus.c b/cpus.c
> index 46732a5..8d27fb0 100644
> --- a/cpus.c
> +++ b/cpus.c
(snip)
> @@ -146,6 +147,48 @@ typedef struct TimersState {
> } TimersState;
>
> static TimersState timers_state;
> +static bool mttcg_enabled;
> +
> +static QemuOptsList qemu_tcg_opts = {
> + .name = "tcg",
> + .head = QTAILQ_HEAD_INITIALIZER(qemu_tcg_opts.head),
> + .desc = {
> + {
> + .name = "mttcg",
> + .type = QEMU_OPT_BOOL,
> + .help = "Enable/disable multi-threaded TCG",
> + },
> + { /* end of list */ }
> + },
> +};
> +
> +static void tcg_register_config(void)
> +{
> + qemu_add_opts(&qemu_tcg_opts);
> +}
> +
> +opts_init(tcg_register_config);
> +
> +static bool default_mttcg_enabled(void)
> +{
> + /*
> + * TODO: Check if we have a chance to have MTTCG working on this
> guest/host.
> + * Basically is the atomic instruction implemented? Is there any
> + * memory ordering issue?
> + */
I think this could be decided in configure/makefiles.
> + return false;
> +}
> +
> +void qemu_tcg_configure(QemuOpts *opts)
> +{
> + mttcg_enabled = qemu_opt_get_bool(opts, "mttcg",
> default_mttcg_enabled());
> +}
> +
> +bool qemu_tcg_mttcg_enabled(void)
> +{
> + return mttcg_enabled;
> +}
> +
>
> int64_t cpu_get_icount_raw(void)
> {
> diff --git a/include/qom/cpu.h b/include/qom/cpu.h
> index 13eeaae..5e3826c 100644
> --- a/include/qom/cpu.h
> +++ b/include/qom/cpu.h
> @@ -369,6 +369,20 @@ extern struct CPUTailQ cpus;
> extern __thread CPUState *current_cpu;
>
> /**
> + * qemu_tcg_enable_mttcg:
> + * Enable the MultiThread TCG support.
> + */
> +void qemu_tcg_enable_mttcg(void);
Seems to be an orphaned declaration.
Kind regards,
Sergey
