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From: Sergey Fedorov <serge.fdrv@gmail.com>
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Date: Mon, 11 Apr 2016 23:50:30 +0300
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Subject: Re: [Qemu-devel] [RFC v2 08/11] tcg: add options for enabling MTTCG
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To: =?UTF-8?Q?Alex_Benn=c3=a9e?= <alex.bennee@linaro.org>, mttcg@listserver.greensocs.com, fred.konrad@greensocs.com, a.rigo@virtualopensystems.com, cota@braap.org
Cc: qemu-devel@nongnu.org, mark.burton@greensocs.com, pbonzini@redhat.com, jan.kiszka@siemens.com, rth@twiddle.net, peter.maydell@linaro.org, claudio.fontana@huawei.com, Peter Crosthwaite <crosthwaite.peter@gmail.com>, =?UTF-8?Q?Andreas_F=c3=a4rber?= <afaerber@suse.de>

On 05/04/16 18:32, Alex Bennée wrote:
> diff --git a/qemu-options.hx b/qemu-options.hx
> index a770086..4eca704 100644
> --- a/qemu-options.hx
> +++ b/qemu-options.hx
> @@ -3224,6 +3224,20 @@ Attach to existing xen domain.
>  xend will use this when starting QEMU (XEN only).
>  ETEXI
>  
> +DEF("tcg", HAS_ARG, QEMU_OPTION_tcg, \
> +    "-tcg [mttcg=on|off] control TCG options\n", QEMU_ARCH_ALL)
> +STEXI
> +@item -tcg
> +@findex -tcg
> +@table @option
> +@item mttcg=[on|off]
> +Control multi-threaded TCG. By default QEMU will enable multi-threaded
> +emulation for front/back-end combinations that are known to work. The
> +user may enable it against the defaults however odd guest behaviour
> +may occur.
> +@end table
> +ETEXI

Maybe we'd better use existing qemu accelerator framework and introduce
"-machine accel=mttcg" option?

Kind regards,
Sergey