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

[Christopher Covington <cov@codeaurora.org>]

On 10/28/2014 01:08 PM, Peter Maydell wrote:
> On 28 October 2014 16:38, Liviu Ionescu <ilg@livius.net> 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.

Chris

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