Re: [Qemu-devel] [PATCH 03/16] vl: convert -m to qemu_opts_parse()

[Paolo Bonzini <pbonzini@redhat.com>]

Il 24/07/2013 10:40, Igor Mammedov ha scritto:
> On Tue, 23 Jul 2013 19:11:31 +0200
> Paolo Bonzini <pbonzini@redhat.com> wrote:
> 
>> Il 23/07/2013 18:22, Igor Mammedov ha scritto:
>>> Signed-off-by: Igor Mammedov <imammedo@redhat.com>
>>> ---
>>>  qemu-options.hx |    9 +++++++--
>>>  vl.c            |   53 +++++++++++++++++++++++++++++++++++++++++++++++------
>>>  2 files changed, 54 insertions(+), 8 deletions(-)
>>>
>>> diff --git a/qemu-options.hx b/qemu-options.hx
>>> index 137a39b..f799b3d 100644
>>> --- a/qemu-options.hx
>>> +++ b/qemu-options.hx
>>> @@ -210,8 +210,13 @@ use is discouraged as it may be removed from future versions.
>>>  ETEXI
>>>  
>>>  DEF("m", HAS_ARG, QEMU_OPTION_m,
>>> -    "-m megs         set virtual RAM size to megs MB [default="
>>> -    stringify(DEFAULT_RAM_SIZE) "]\n", QEMU_ARCH_ALL)
>>> +    "-m [mem=]megs[,slots=n,maxmem=size]\n"
>>> +    "                set virtual RAM size to megs MB [default="
>>> +    stringify(DEFAULT_RAM_SIZE) "]\n"
>>> +    "                mem=start-up memory amount\n"
>>> +    "                slots=maximum number of hotplug slots\n"
>>> +    "                maxmem=maximum total amount of memory\n",
>>> +    QEMU_ARCH_ALL)
>>>  STEXI
>>>  @item -m @var{megs}
>>>  @findex -m
>>> diff --git a/vl.c b/vl.c
>>> index bf0c658..16c6f1e 100644
>>> --- a/vl.c
>>> +++ b/vl.c
>>> @@ -516,6 +516,27 @@ static QemuOptsList qemu_realtime_opts = {
>>>      },
>>>  };
>>>  
>>> +static QemuOptsList qemu_mem_opts = {
>>> +    .name = "memory-opts",
>>> +    .implied_opt_name = "mem",
>>> +    .head = QTAILQ_HEAD_INITIALIZER(qemu_mem_opts.head),
>>
>> This should have
>>
>>     .merge_lists = true,
> 
> Just to clarify: is it to allow syntax like?
>  -m 512 -m slots=X -m maxmem=Y

Yes.  In general, if "id" doesn't make sense the QemuOptsList should
have merge_lists=true.

Paolo