Re: [Qemu-devel] Memory on stellaris board

[Aurelio Remonda]

Hello, im working on this feature right now.
i have a working patch but maybe I can make some changes to make it look better:
for example in some point i check ram_size like this:
if (ram_size == 0x8000000)
Maybe if i make ram_addr_t default_ram_size global (is a local
variable of set_memory_options function)
i can use it instead of hardcoded 0x8000000.
Thanks!

On Wed, Feb 3, 2016 at 10:45 AM, Aurelio Remonda
<address@hidden> wrote:
> On Wed, Feb 3, 2016 at 10:34 AM, Peter Maydell <address@hidden> wrote:
>> On 3 February 2016 at 13:00, Aurelio Remonda
>> <address@hidden> wrote:
>>> Hello, i was trying to understand how does the sram and flash size
>>> works on lm3s6965evb, i found a hardcoded 0x00ff007f as dc0 value and
>>> how flash_size and sram_size are calculated based on that hexadecimal.
>>> I mean this:
>>>
>>> flash_size = (((board->dc0 & 0xffff) + 1) << 1) * 1024;
>>> sram_size = ((board->dc0 >> 18) + 1) * 1024;
>>> On stellaris.c
>>>
>>> When i use the -m [size] flag while running qemu how does the flag
>>> affect does flash_size and sram_size values? Or it doesn't? Where can
>>> i see that the memory has indeed change?
>>
>> This board model ignores -m. We just implement a model of this particular
>> bit of hardware, which has a fixed amount of RAM in it.
>
> Thanks for the quick answer, do you think it is worth to make the m
> flag work for this model?
> Can you give me a hint on where to look?(another board that use it) so
> i can add this feature
> for this model.
> Thanks!
>
>
> --
> Aurelio Remonda
>
> Software Engineer
>
> San Lorenzo 47, 3rd Floor, Office 5
> Córdoba, Argentina
> Phone: +54-351-4217888 / 4218211



-- 
Aurelio Remonda

Software Engineer

San Lorenzo 47, 3rd Floor, Office 5
Córdoba, Argentina
Phone: +54-351-4217888 / 4218211