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Groups > linux.kernel > #1389877
| From | Eric Auger <eric.auger@linaro.org> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | [PATCH v8 2/8] irqchip/gic-v3-its: ITS advertises MSI_FLAG_IRQ_REMAPPING |
| Date | 2016-04-28 10:30 +0200 |
| Message-ID | <rsPuH-4Y-45@gated-at.bofh.it> (permalink) |
| References | <rsPuF-4Y-3@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
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 <eric.auger@linaro.org>
---
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(-)
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,
};
--
1.9.1
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[PATCH v8 0/8] KVM PCIe/MSI passthrough on ARM/ARM64: kernel part 2/3: msi changes Eric Auger <eric.auger@linaro.org> - 2016-04-28 10:30 +0200
[PATCH v8 4/8] genirq/msi: msi_compose wrapper Eric Auger <eric.auger@linaro.org> - 2016-04-28 10:30 +0200
[PATCH v8 5/8] genirq/irq: introduce msi_doorbell_info Eric Auger <eric.auger@linaro.org> - 2016-04-28 10:30 +0200
Re: [PATCH v8 5/8] genirq/irq: introduce msi_doorbell_info Marc Zyngier <marc.zyngier@arm.com> - 2016-05-04 15:00 +0200
[PATCH v8 1/8] genirq/msi: Add a new MSI_FLAG_IRQ_REMAPPING flag Eric Auger <eric.auger@linaro.org> - 2016-04-28 10:30 +0200
[PATCH v8 3/8] genirq/msi: export msi_get_domain_info Eric Auger <eric.auger@linaro.org> - 2016-04-28 10:30 +0200
[PATCH v8 7/8] genirq/msi: map/unmap the MSI doorbells on msi_domain_alloc/free_irqs Eric Auger <eric.auger@linaro.org> - 2016-04-28 10:30 +0200
Re: [PATCH v8 7/8] genirq/msi: map/unmap the MSI doorbells on msi_domain_alloc/free_irqs Marc Zyngier <marc.zyngier@arm.com> - 2016-05-04 15:30 +0200
Re: [PATCH v8 7/8] genirq/msi: map/unmap the MSI doorbells on msi_domain_alloc/free_irqs Eric Auger <eric.auger@linaro.org> - 2016-05-04 17:30 +0200
[PATCH v8 2/8] irqchip/gic-v3-its: ITS advertises MSI_FLAG_IRQ_REMAPPING Eric Auger <eric.auger@linaro.org> - 2016-04-28 10:30 +0200
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