[PATCH 1/5] irqchip/gic-v5: Skip deactivate for forwarded PPI interrupts

[Sascha Bischoff]

On Mon, 2025-06-23 at 17:21 +0200, Lorenzo Pieralisi wrote:
> On Fri, Jun 20, 2025 at 04:07:50PM +0000, Sascha Bischoff wrote:
> > If a PPI interrupt is forwarded to a guest, skip the deactivate and
> > only EOI. Rely on the guest deactivating the both the virtual and
> 
> "deactivating both"

Done.

> 
> > physical interrupts (due to ICH_LRx_EL2.HW being set) later on as
> > part
> > of handling the injected interrupt. This mimics the behaviour seen
> > on
> > native GICv3.
> > 
> > This is part of adding support for the GICv3 compatibility mode on
> > a
> > GICv5 host.
> > 
> > Co-authored-by: Timothy Hayes <timothy.hayes at arm.com>
> > Signed-off-by: Timothy Hayes <timothy.hayes at arm.com>
> > Signed-off-by: Sascha Bischoff <sascha.bischoff at arm.com>
> > ---
> >  drivers/irqchip/irq-gic-v5.c | 17 +++++++++++++++++
> >  1 file changed, 17 insertions(+)
> 
> Reviewed-by: Lorenzo Pieralisi <lpieralisi at kernel.org>

Done. Thanks!
Sascha