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Re: [XEN v4 11/11] xen/Arm: GICv3: Enable GICv3 for AArch32
- To: Ayan Kumar Halder <ayan.kumar.halder@xxxxxxx>, <xen-devel@xxxxxxxxxxxxxxxxxxxx>
- From: Michal Orzel <michal.orzel@xxxxxxx>
- Date: Tue, 29 Nov 2022 16:02:42 +0100
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- Delivery-date: Tue, 29 Nov 2022 15:03:03 +0000
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Hi Ayan,
On 28/11/2022 16:56, Ayan Kumar Halder wrote:
> One can now use GICv3 on AArch32 systems. However, ITS is not supported.
> The reason being currently we are trying to validate GICv3 on an AArch32_v8R
> system. Refer ARM DDI 0568A.c ID110520, B1.3.1,
> "A Generic Interrupt Controller (GIC) implemented with an Armv8-R PE must not
> implement LPI support."
>
> By default GICv3 is disabled on AArch32 and enabled on AArch64.
>
> Updated SUPPORT.md to state that GICv3 on Arm32 is not security supported.
>
> Signed-off-by: Ayan Kumar Halder <ayan.kumar.halder@xxxxxxx>
Reviewed-by: Michal Orzel <michal.orzel@xxxxxxx>
~Michal
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