Re: [PATCH v2] vgic-v3: Ignore writes to ISACTIVER{nE}N when eSPI is not used

[Julien Grall <julien@xxxxxxx>]

Hi,

On 28/11/2025 11:49, Michal Orzel wrote:
> Prior to introducing GICv3 eSPI support, writes to these registers were
> ignored. Now the behavior is changed and we inject fault to the guests.
> According to documentation, eSPI registers are treated as RES0, when
> GICD_TYPER.ESPI is 0 (this would be the case when CONFIG_GICV3_ESPI=n or
> nr_espis is 0). Restore the previous behavior by checking whether eSPI
> is in use or not.
>
> Fixes: 93eecb2c4b88 ("xen/arm: vgic-v3: add emulation of GICv3.1 eSPI 
> registers")
> Signed-off-by: Michal Orzel <michal.orzel@xxxxxxx>
Reviewed-by: Julien Grall <jgrall@xxxxxxxxxx>

Cheers,

--
Julien Grall