Re: [PULL 14/14] hw/arm/aspeed: Add Fuji machine type

[Philippe Mathieu-Daudé]

On 9/16/21 2:29 PM, Cédric Le Goater wrote:
> On 9/14/21 17:22, Richard Henderson wrote:
>> On 9/14/21 5:26 AM, Peter Maydell wrote:
>>> (2) RAM blocks should have a length that fits inside a
>>>      signed 32-bit type on 32-bit hosts (at least I assume this
>>>      is where the 2047MB limit is coming from; in theory this ought
>>>      to be improveable but auditing the code for mishandling of
>>>      RAMblock sizes to ensure we weren't accidentally stuffing
>>>      their size into a signed 'long' somewhere would be kind
>>>      of painful)

>>> Even if we did fix (2) we'd need to compromise on (3)
>>> sometimes still -- if a board has 4GB of RAM that's
>>> not going to fit in 32 bits regardless. But we would be
>>> able to let boards with 2GB have 2GB.
>>
>> I'm not opposed to deprecating 32-bit hosts...  ;-)
> 
> Until then, I am willing to make the following compromise for the fuji  :
> 
>     mc->default_ram_size = (HOST_LONG_BITS == 32 ? 1 : 2) * GiB;

While I disagree with this approach, better to document it clearly
like commit 25ff112a8cc ("hw/arm/mps2-tz: Add new mps3-an524 board").