Re: [Qemu-devel] Better Cortex-M support?

[Andreas Färber]

Am 29.10.2014 um 14:28 schrieb Christopher Covington:
> On 10/28/2014 01:08 PM, Peter Maydell wrote:
>> On 28 October 2014 16:38, Liviu Ionescu <address@hidden> wrote:
>>> I'm not sure what the QEMU definition of '-machine' stands for, a device
>>> or a board, but I think that the ARM definitions are good candidates for
>>> QEMU emulation names.
>>
>> -machine specifies a board name. We don't care how you build the binary
>> for the board or what library you choose to use for hardware abstraction.
>>
>>> once the core Cortex-M emulation is fully functional, it should be
>>> easier to add support for specific devices, by configuring some of
>>> the parameters (flash/ram, add some peripherals, etc).
>>
>> QEMU doesn't conveniently support runtime flexible specification
>> of what is present in an emulated board (beyond very basic things
>> like "how much RAM"). What the .c file in the QEMU sources defines
>> is what you get.
> 
> I've sometimes thought it might be cool if QEMU could consume a DTB and
> emulate whatever is described, assuming the devices and configurations are
> supported. I've yet to come up with a real problem to motivate this
> "solution", though.

Xilinx already implemented something along those lines in their branch.

Cheers,
Andreas

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