irqchip/gicv3-its: Sets IRQ_DOMAIN_FLAG_MSI_REMAP

eauger · wildea01 · commit 59768527db3d · 2017-01-23T15:00:46.000Z
The GICv3 ITS is MSI remapping capable. Let's advertise
this property so that VFIO passthrough can assess IRQ safety.

Signed-off-by: Eric Auger &lt;eric.auger@redhat.com&gt;
Reviewed-by: Marc Zyngier &lt;marc.zyngier@arm.com&gt;
Reviewed-by: Tomasz Nowicki &lt;tomasz.nowicki@caviumnetworks.com&gt;
Tested-by: Tomasz Nowicki &lt;tomasz.nowicki@caviumnetworks.com&gt;
Tested-by: Bharat Bhushan &lt;bharat.bhushan@nxp.com&gt;
Signed-off-by: Will Deacon &lt;will.deacon@arm.com&gt;
diff --git a/drivers/irqchip/irq-gic-v3-its.c b/drivers/irqchip/irq-gic-v3-its.c
@@ -1642,6 +1642,7 @@ static int its_init_domain(struct fwnode_handle *handle, struct its_node *its)
 
 	inner_domain->parent = its_parent;
 	inner_domain->bus_token = DOMAIN_BUS_NEXUS;
+	inner_domain->flags |= IRQ_DOMAIN_FLAG_MSI_REMAP;
 	info->ops = &its_msi_domain_ops;
 	info->data = its;
 	inner_domain->host_data = info;
