Re: [PATCH] hvf: arm: Add support for GICv3

[Alexander Graf]

Hi Zenghui,

On 20.12.22 08:14, Zenghui Yu wrote:
> On 2022/12/20 6:08, Alexander Graf wrote:
> > We currently only support GICv2 emulation.
>
> Before looking into it, I think it's worth finalizing the GIC version in
> the hvf case - only v2 is allowed and fail early if user selects the
> unsupported versions. Currently finalize_gic_version() does not deal
> with hvf at all.


Currently finalize_gic_version() treats HVF the same as TCG, which is 
incorrect. However, with this patch applied, they happen to match.

I don't think it's worth changing the finalize_gic_version() 
implementation to reflect the gicv2 only state for HVF. Instead, let's 
rather get GICv3 support in and then add explicit handling for HVF on top.

Alex