irqchip/gic-v3-its: Update effective affinity on VPE mapping

When setting the affinity of a VPE (either because we map or move
it), make sure the effective affinity is correctly reported back
to the core kernel.

Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>

1 files changed, 6 insertions, 0 deletions

diff --git a/drivers/irqchip/irq-gic-v3-its.c b/drivers/irqchip/irq-gic-v3-its.c
index bc70993..6a74f04 100644
--- a/drivers/irqchip/irq-gic-v3-its.c
+++ b/drivers/irqchip/irq-gic-v3-its.c
@@ -1178,11 +1178,13 @@ static void its_map_vm(struct its_node *its, struct its_vm *vm)
 
 		for (i = 0; i < vm->nr_vpes; i++) {
 			struct its_vpe *vpe = vm->vpes[i];
+			struct irq_data *d = irq_get_irq_data(vpe->irq);
 
 			/* Map the VPE to the first possible CPU */
 			vpe->col_idx = cpumask_first(cpu_online_mask);
 			its_send_vmapp(its, vpe, true);
 			its_send_vinvall(its, vpe);
+			irq_data_update_effective_affinity(d, cpumask_of(vpe->col_idx));
 		}
 	}
 
@@ -2449,6 +2451,8 @@ static int its_vpe_set_affinity(struct irq_data *d,
 		its_vpe_db_proxy_move(vpe, from, cpu);
 	}
 
+	irq_data_update_effective_affinity(d, cpumask_of(cpu));
+
 	return IRQ_SET_MASK_OK_DONE;
 }
 
@@ -2797,6 +2801,8 @@ static int its_vpe_irq_domain_activate(struct irq_domain *domain,
 		its_send_vinvall(its, vpe);
 	}
 
+	irq_data_update_effective_affinity(d, cpumask_of(vpe->col_idx));
+
 	return 0;
 }