Re: [PATCH v8 07/10] hw/arm/sbsa-ref: add ITS support in SBSA GIC

[Peter Maydell]

On Fri, 3 Sept 2021 at 13:01, Leif Lindholm <leif@nuviainc.com> wrote:
> On Thu, Sep 02, 2021 at 13:51:26 +0100, Peter Maydell wrote:
> > How does guest software on this board figure out the memory
> > layout ? Is there a mechanism for telling it "this is version 2
> > of this board" ?
>
> Not currently. Aiming to look like most SBSA platforms, it is
> hard-wired, and firmware passes that information to the os.
>
> This is the kind of thing I eventually want to do using a PV-model
> SCP. As a stop-gap, we could push it through the DT, like we do for
> cpus and memory?

That's up to you, I guess. You could alternatively have some
sort of "board ID" register that the firmware reads ?

-- PMM