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Date: Wed, 26 Aug 2009 14:58:31 +0200
From: Stefan Weil <weil@mail.berlios.de>
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Subject: Re: [Qemu-devel] memory restriction in 256M - why?
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To: Sergey Anosov <aserg2004@list.ru>
Cc: qemu-devel@nongnu.org

Artyom Tarasenko schrieb:
> 2009/8/25 Sergey Anosov <aserg2004@list.ru>:
>   
>> I'm new in QEMU. I've got one question - why there is a memory restriction in 256 M on sparc, mips and other platforms?
>> I've made mips and sparc distributives, but 256M of RAM is too little for them.
>>     
>
> There is no such restriction:
>
> qemu-system-sparc -M SS-10 -m 512
> ...
> Probing Memory Bank #0 64 Megabytes of DRAM
> Probing Memory Bank #1 64 Megabytes of DRAM
> Probing Memory Bank #2 64 Megabytes of DRAM
> Probing Memory Bank #3 64 Megabytes of DRAM
> Probing Memory Bank #4 64 Megabytes of DRAM
> Probing Memory Bank #5 64 Megabytes of DRAM
> Probing Memory Bank #6 64 Megabytes of DRAM
> Probing Memory Bank #7 64 Megabytes of DRAM
> ...
>
> But there is a limitation per certain machine type. SparcStation 10
> can support only 512 M. It rarely makes sense to try to put more in
> it: a standard software (Firmware, OS)  wouldn't know where to search
> for more RAM.
>
>
>
>   

MIPS Malta is limited to 256 MiB. This is a hardware limitation
and not caused by QEMU.