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Date: Tue, 07 Apr 2015 22:43:13 +0200
From: Alexander Graf <agraf@suse.de>
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Subject: Re: [Qemu-devel] [PATCH qemu] qemu-options: Add documentation about
 PPC64's "-cpu compat" option
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To: Alexey Kardashevskiy <aik@ozlabs.ru>, qemu-devel@nongnu.org
Cc: qemu-ppc@nongnu.org, David Gibson <david@gibson.dropbear.id.au>

On 04/02/2015 08:26 AM, Alexey Kardashevskiy wrote:
> Since 8dfa3a5e "target-ppc: Add "compat" CPU option" (which was a part of
> client-architecture-support patchset) there is a "compat" option
> of "-cpu". However it was not documented at all and this is what this
> patch is trying to do.
>
> Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
> ---
>   qemu-options.hx | 11 ++++++++++-
>   1 file changed, 10 insertions(+), 1 deletion(-)
>
> diff --git a/qemu-options.hx b/qemu-options.hx
> index c513352..bd15214 100644
> --- a/qemu-options.hx
> +++ b/qemu-options.hx
> @@ -84,11 +84,20 @@ HXCOMM Deprecated by -machine
>   DEF("M", HAS_ARG, QEMU_OPTION_M, "", QEMU_ARCH_ALL)
>   
>   DEF("cpu", HAS_ARG, QEMU_OPTION_cpu,
> -    "-cpu cpu        select CPU ('-cpu help' for list)\n", QEMU_ARCH_ALL)
> +    "-cpu cpu,[compat=MODE]\n"
> +    "                select CPU ('-cpu help' for list)\n"
> +    "                compat= processor compatibility mode (PPC64 only)\n",
> +        QEMU_ARCH_ALL)

Shouldn't there be a way to show this only for the ppc64 target?


Alex

>   STEXI
>   @item -cpu @var{model}
>   @findex -cpu
>   Select CPU model (@code{-cpu help} for list and additional feature selection)
> +@table @option
> +@item compat=power6|power7|power8
> +(PPC64 only)
> +Enables architecture compatibility mode. "power6" enables PowerISA 2.05,
> +"power7" - 2.06, "power8" - 2.07.
> +@end table
>   ETEXI
>   
>   DEF("smp", HAS_ARG, QEMU_OPTION_smp,