[v6,2/4] irqchip/gic-v3-its: ITS advertises MSI_FLAG_IRQ_REMAPPING

Commit Message

Eric Auger April 4, 2016, 8:19 a.m. UTC

The ITS is the first ARM MSI controller advertising the new
MSI_FLAG_IRQ_REMAPPING flag. It does so because it supports
interrupt translation service. This HW support offers isolation
of MSIs, feature used when using KVM device passthrough.

Signed-off-by: Eric Auger <[e-mail]>

---

v5: new
---
 drivers/irqchip/irq-gic-v3-its-pci-msi.c      | 3 ++-
 drivers/irqchip/irq-gic-v3-its-platform-msi.c | 3 ++-
 2 files changed, 4 insertions(+), 2 deletions(-)

Patch

diff --git a/drivers/irqchip/irq-gic-v3-its-pci-msi.c b/drivers/irqchip/irq-gic-v3-its-pci-msi.c
index aee60ed..8223765 100644
--- a/drivers/irqchip/irq-gic-v3-its-pci-msi.c
+++ b/drivers/irqchip/irq-gic-v3-its-pci-msi.c
@@ -96,7 +96,8 @@  static struct msi_domain_ops its_pci_msi_ops = {
 
 static struct msi_domain_info its_pci_msi_domain_info = {
 	.flags	= (MSI_FLAG_USE_DEF_DOM_OPS | MSI_FLAG_USE_DEF_CHIP_OPS |
-		   MSI_FLAG_MULTI_PCI_MSI | MSI_FLAG_PCI_MSIX),
+		   MSI_FLAG_MULTI_PCI_MSI | MSI_FLAG_PCI_MSIX |
+		   MSI_FLAG_IRQ_REMAPPING),
 	.ops	= &its_pci_msi_ops,
 	.chip	= &its_msi_irq_chip,
 };
diff --git a/drivers/irqchip/irq-gic-v3-its-platform-msi.c b/drivers/irqchip/irq-gic-v3-its-platform-msi.c
index 470b4aa..8c0d69d 100644
--- a/drivers/irqchip/irq-gic-v3-its-platform-msi.c
+++ b/drivers/irqchip/irq-gic-v3-its-platform-msi.c
@@ -63,7 +63,8 @@  static struct msi_domain_ops its_pmsi_ops = {
 };
 
 static struct msi_domain_info its_pmsi_domain_info = {
-	.flags	= (MSI_FLAG_USE_DEF_DOM_OPS | MSI_FLAG_USE_DEF_CHIP_OPS),
+	.flags	= (MSI_FLAG_USE_DEF_DOM_OPS | MSI_FLAG_USE_DEF_CHIP_OPS |
+		   MSI_FLAG_IRQ_REMAPPING),
 	.ops	= &its_pmsi_ops,
 	.chip	= &its_pmsi_irq_chip,
 };