Re: [Qemu-devel] [PATCH RFC V5 9/9] hw/arm: Add virt-v3 machine that uses GIC-500

[Shlomo Pongratz]

See inline

On Wednesday, October 21, 2015, Pavel Fedin <address@hidden> wrote:
>  Hello!
>
> > I see, just how do I pass the gic version from the command line?
>
>  Easy. -machine virt,gic-version=3
>
> > GICV3 is accessed by system instructions that exists only in ARCH64.
>
>  Wrong. In 32-bit mode the CPU sees them as CP15 registers. See "8.5 AArch32 System register descriptions".
>  I would say, system registers are nothing new, these are just renamed CP15 registers, with "CPn" prefix removed.

I assume I can add the system registers to target-arm/cpu.c but I wonder if someone really needs to simulate more than 8 AArch32 CPU(s)

 

> Kind regards,
> Pavel Fedin
> Expert Engineer
> Samsung Electronics Research center Russia