Re: [PATCH 1/2] KVM: arm64: vgic-v4: Don't allocate vPEs for a GICv2 VM

[Marc Zyngier]

On Mon, 26 Oct 2026 19:12:23 +0000,
Oliver Upton <oupton@xxxxxxxxxx> wrote:
> 
> On Mon, Oct 26, 2026 at 03:26:38PM +0000, Fuad Tabba wrote:
> > KVM can run a GICv2 VM on a GICv4.0 host whose CPU interface supports
> > legacy operation.
> 
> I'm pretty sure there's no IP out there that has GICv4.0 and legacy
> mode...

My favourite space heater, HiSi D05, says otherwise: 64 A72,
GICv4.0. Remember that it is the *CPU* that provides compat mode, and
not the GIC.

	M.

-- 
Jazz isn't dead. It just smells funny.