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From: eric.auger@redhat.com (Eric Auger)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH v9 15/18] irqchip/gicv3-its: Sets IRQ_DOMAIN_FLAG_MSI_REMAP
Date: Thu, 19 Jan 2017 20:58:00 +0000	[thread overview]
Message-ID: <1484859483-2866-16-git-send-email-eric.auger@redhat.com> (raw)
In-Reply-To: <1484859483-2866-1-git-send-email-eric.auger@redhat.com>

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 <marc.zyngier@arm.com>
Reviewed-by: Tomasz Nowicki <tomasz.nowicki@caviumnetworks.com>
Tested-by: Tomasz Nowicki <tomasz.nowicki@caviumnetworks.com>
Tested-by: Bharat Bhushan <bharat.bhushan@nxp.com>

---

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

  parent reply	other threads:[~2017-01-19 20:58 UTC|newest]

Thread overview: 22+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-01-19 20:57 [PATCH v9 00/18] KVM PCIe/MSI passthrough on ARM/ARM64 and IOVA reserved regions Eric Auger
2017-01-19 20:57 ` [PATCH v9 01/18] iommu/dma: Allow MSI-only cookies Eric Auger
2017-01-19 20:57 ` [PATCH v9 02/18] iommu: Rename iommu_dm_regions into iommu_resv_regions Eric Auger
2017-01-19 20:57 ` [PATCH v9 03/18] iommu: Add a new type field in iommu_resv_region Eric Auger
2017-01-19 20:57 ` [PATCH v9 04/18] iommu: iommu_alloc_resv_region Eric Auger
2017-01-19 20:57 ` [PATCH v9 05/18] iommu: Only map direct mapped regions Eric Auger
2017-01-19 20:57 ` [PATCH v9 06/18] iommu: iommu_get_group_resv_regions Eric Auger
2017-01-19 20:57 ` [PATCH v9 07/18] iommu: Implement reserved_regions iommu-group sysfs file Eric Auger
2017-01-19 20:57 ` [PATCH v9 08/18] iommu/vt-d: Implement reserved region get/put callbacks Eric Auger
2017-01-23 11:46   ` Will Deacon
2017-01-23 11:57     ` Auger Eric
2017-01-19 20:57 ` [PATCH v9 09/18] iommu/amd: Declare MSI and HT regions as reserved IOVA regions Eric Auger
2017-01-19 20:57 ` [PATCH v9 10/18] iommu/arm-smmu: Implement reserved region get/put callbacks Eric Auger
2017-01-23 11:44   ` Will Deacon
2017-01-19 20:57 ` [PATCH v9 11/18] iommu/arm-smmu-v3: " Eric Auger
2017-01-19 20:57 ` [PATCH v9 12/18] irqdomain: Add irq domain MSI and MSI_REMAP flags Eric Auger
2017-01-19 20:57 ` [PATCH v9 13/18] genirq/msi: Set IRQ_DOMAIN_FLAG_MSI on MSI domain creation Eric Auger
2017-01-19 20:57 ` [PATCH v9 14/18] irqdomain: irq_domain_check_msi_remap Eric Auger
2017-01-19 20:58 ` Eric Auger [this message]
2017-01-19 20:58 ` [PATCH v9 16/18] vfio/type1: Allow transparent MSI IOVA allocation Eric Auger
2017-01-19 20:58 ` [PATCH v9 17/18] vfio/type1: Check MSI remapping at irq domain level Eric Auger
2017-01-19 20:58 ` [PATCH v9 18/18] iommu/arm-smmu: Do not advertise IOMMU_CAP_INTR_REMAP anymore Eric Auger

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