Re: [Qemu-devel] [PATCH RFC v4 02/20] target-arm: Introduce QOM ARMCPUClass

[Peter Maydell]

On 13 March 2012 17:58, Andreas Färber <address@hidden> wrote:
> Have you thought about how to QOM'ify your boards? Mid-term I'd like to
> see an "exynos4210" object with the CPUs on it - maybe "cpu[0]" and
> "cpu[1]" child properties? Or "core[x]"? I had played with the sh7750 a
> bit on my branch but like the arm926 it's a single-core.

I think the exynos4210 object should have a single child object
cortex-a9 which in turn has child objects for core[0], core[1],
gic, scu, and the private timers and watchdogs.

In hardware the A9 is a single block which includes all the
cores and all the onboard peripherals; we should model it
the same way.

One step in this direction might be to disentangle the GIC
so that a9mpcore_priv and friends instantiate a GIC object
as a child object rather than subclassing the GIC. I think
now that Avi has made sub-page-size memory regions work
we can get the M profile NVIC code out of arm_gic.c and
have a standalone GIC object everybody instantiates.

-- PMM