ARM GICv3 Support

Sebastian Huber sebastian.huber at
Wed Oct 24 11:16:47 UTC 2018

Hello Will,

On 23/10/2018 20:28, Will wrote:
> Hi,
> I'm currently doing some evaluations for an ARMv8 BSP which would 
> necessarily include a GIC that implements the GICv3 spec[1]. I see 
> that there is a shared GIC driver for ARM that seems to implement the 
> ARM GICv1 spec based on the BSPs in which it is used.
> Is anyone aware of whether the shared ARM GIC driver can also drive 
> GICv2 implementations and thus possibly drive GICv3 implementations in 
> legacy mode (see section 1.3.6 of the spec) with minor 
> alterations/restrictions?
> I suspect that this is the case since GICv2 appears to be purely 
> extensions to GICv1, but it would be nice to have confirmation from 
> someone better versed in the implementation.

the Cortex-A7 MPCore equipped on the i.MX 7D uses a GIC v2.0. So, GICv2 
is supported.

Sebastian Huber, embedded brains GmbH

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