Thread (22 messages) flat view 22 messages, 2 authors, 2017-01-23
STALE3512d REVIEWED: 4 (0M)

Revision v9 of 5 in this series; 4 review trailers.

Revisions (5)
  1. v5 [diff vs current]
  2. v6 [diff vs current]
  3. v7 [diff vs current]
  4. v8 [diff vs current]
  5. v9 current

[PATCH v9 15/18] irqchip/gicv3-its: Sets IRQ_DOMAIN_FLAG_MSI_REMAP

From: eric.auger@redhat.com (Eric Auger)
Date: 2017-01-19 21:00:49
Also in: kvm, linux-iommu, lkml
Subsystem: arm generic interrupt controller drivers, irqchip drivers, the rest · Maintainers: Marc Zyngier, Thomas Gleixner, Linus Torvalds

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 <eric.auger@redhat.com>
Reviewed-by: Marc Zyngier <redacted>
Reviewed-by: Tomasz Nowicki <redacted>
Tested-by: Tomasz Nowicki <redacted>
Tested-by: Bharat Bhushan <redacted>

---

v7 -> v8:
- added Marc's R-b
---
 drivers/irqchip/irq-gic-v3-its.c | 1 +
 1 file changed, 1 insertion(+)
diff --git a/drivers/irqchip/irq-gic-v3-its.c b/drivers/irqchip/irq-gic-v3-its.c
index 69b040f..9d4fefc 100644
--- 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;
-- 
1.9.1
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