From: Eric Auger <eric.auger@redhat.com>
To: eric.auger.pro@gmail.com, eric.auger@redhat.com,
iommu@lists.linux-foundation.org, linux-kernel@vger.kernel.org,
kvm@vger.kernel.org, kvmarm@lists.cs.columbia.edu,
joro@8bytes.org, alex.williamson@redhat.com,
jacob.jun.pan@linux.intel.com, yi.l.liu@linux.intel.com,
jean-philippe.brucker@arm.com, will.deacon@arm.com,
robin.murphy@arm.com
Cc: marc.zyngier@arm.com, kevin.tian@intel.com, ashok.raj@intel.com
Subject: [PATCH v4 16/22] iommu/smmuv3: Implement bind/unbind_guest_msi
Date: Mon, 18 Feb 2019 14:54:57 +0100 [thread overview]
Message-ID: <20190218135504.25048-17-eric.auger@redhat.com> (raw)
In-Reply-To: <20190218135504.25048-1-eric.auger@redhat.com>
The bind/unbind_guest_msi() callbacks check the domain
is NESTED and redirect to the dma-iommu implementation.
Signed-off-by: Eric Auger <eric.auger@redhat.com>
---
drivers/iommu/arm-smmu-v3.c | 44 +++++++++++++++++++++++++++++++++++++
1 file changed, 44 insertions(+)
diff --git a/drivers/iommu/arm-smmu-v3.c b/drivers/iommu/arm-smmu-v3.c
index edff7ccf8b71..7b6b5a70fb39 100644
--- a/drivers/iommu/arm-smmu-v3.c
+++ b/drivers/iommu/arm-smmu-v3.c
@@ -2207,6 +2207,48 @@ static void arm_smmu_put_resv_regions(struct device *dev,
kfree(entry);
}
+static int
+arm_smmu_bind_guest_msi(struct iommu_domain *domain, struct device *dev,
+ dma_addr_t giova, phys_addr_t gpa, size_t size)
+{
+ struct arm_smmu_domain *smmu_domain = to_smmu_domain(domain);
+ struct arm_smmu_device *smmu;
+ int ret = -EINVAL;
+
+ mutex_lock(&smmu_domain->init_mutex);
+ smmu = smmu_domain->smmu;
+ if (!smmu)
+ goto out;
+
+ if (smmu_domain->stage != ARM_SMMU_DOMAIN_NESTED)
+ goto out;
+
+ ret = iommu_dma_bind_guest_msi(domain, dev, giova, gpa, size);
+out:
+ mutex_unlock(&smmu_domain->init_mutex);
+ return ret;
+}
+
+static void
+arm_smmu_unbind_guest_msi(struct iommu_domain *domain,
+ struct device *dev, dma_addr_t giova)
+{
+ struct arm_smmu_domain *smmu_domain = to_smmu_domain(domain);
+ struct arm_smmu_device *smmu;
+
+ mutex_lock(&smmu_domain->init_mutex);
+ smmu = smmu_domain->smmu;
+ if (!smmu)
+ goto unlock;
+
+ if (smmu_domain->stage != ARM_SMMU_DOMAIN_NESTED)
+ goto unlock;
+
+ iommu_dma_unbind_guest_msi(domain, dev, giova);
+unlock:
+ mutex_unlock(&smmu_domain->init_mutex);
+}
+
static int arm_smmu_attach_pasid_table(struct iommu_domain *domain,
struct iommu_pasid_table_config *cfg)
{
@@ -2396,6 +2438,8 @@ static struct iommu_ops arm_smmu_ops = {
.attach_pasid_table = arm_smmu_attach_pasid_table,
.detach_pasid_table = arm_smmu_detach_pasid_table,
.cache_invalidate = arm_smmu_cache_invalidate,
+ .bind_guest_msi = arm_smmu_bind_guest_msi,
+ .unbind_guest_msi = arm_smmu_unbind_guest_msi,
.pgsize_bitmap = -1UL, /* Restricted during device attach */
};
--
2.20.1
next prev parent reply other threads:[~2019-02-18 13:54 UTC|newest]
Thread overview: 42+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-02-18 13:54 [PATCH v4 00/22] SMMUv3 Nested Stage Setup Eric Auger
2019-02-18 13:54 ` [PATCH v4 01/22] driver core: add per device iommu param Eric Auger
2019-02-18 13:54 ` [PATCH v4 02/22] iommu: introduce device fault data Eric Auger
2019-03-05 14:56 ` Jean-Philippe Brucker
2019-03-06 9:38 ` Auger Eric
2019-03-06 12:08 ` Jean-Philippe Brucker
2019-03-06 11:03 ` Auger Eric
2019-03-06 14:30 ` Auger Eric
2019-03-06 16:07 ` Jean-Philippe Brucker
2019-03-06 17:32 ` Auger Eric
2019-02-18 13:54 ` [PATCH v4 03/22] iommu: introduce device fault report API Eric Auger
2019-03-05 15:03 ` Jean-Philippe Brucker
2019-03-06 23:46 ` Jacob Pan
2019-03-07 11:42 ` Jean-Philippe Brucker
2019-02-18 13:54 ` [PATCH v4 04/22] iommu: Introduce attach/detach_pasid_table API Eric Auger
2019-03-05 15:23 ` Jean-Philippe Brucker
2019-03-05 18:15 ` Auger Eric
2019-02-18 13:54 ` [PATCH v4 05/22] iommu: Introduce cache_invalidate API Eric Auger
2019-03-05 15:28 ` Jean-Philippe Brucker
2019-03-05 18:14 ` Auger Eric
[not found] ` <0e041735-98e8-1d8c-c866-ad23e6cc1db5-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
2019-03-06 21:59 ` Jacob Pan
2019-02-18 13:54 ` [PATCH v4 06/22] iommu: Introduce bind/unbind_guest_msi Eric Auger
2019-02-18 13:54 ` [PATCH v4 07/22] vfio: VFIO_IOMMU_ATTACH/DETACH_PASID_TABLE Eric Auger
2019-02-18 13:54 ` [PATCH v4 08/22] vfio: VFIO_IOMMU_CACHE_INVALIDATE Eric Auger
2019-02-18 13:54 ` [PATCH v4 09/22] vfio: VFIO_IOMMU_BIND/UNBIND_MSI Eric Auger
2019-02-18 13:54 ` [PATCH v4 10/22] iommu/arm-smmu-v3: Link domains and devices Eric Auger
2019-02-18 13:54 ` [PATCH v4 11/22] iommu/arm-smmu-v3: Maintain a SID->device structure Eric Auger
2019-02-18 13:54 ` [PATCH v4 12/22] iommu/smmuv3: Get prepared for nested stage support Eric Auger
2019-02-18 13:54 ` [PATCH v4 13/22] iommu/smmuv3: Implement attach/detach_pasid_table Eric Auger
2019-02-18 13:54 ` [PATCH v4 14/22] iommu/smmuv3: Implement cache_invalidate Eric Auger
2019-02-18 13:54 ` [PATCH v4 15/22] dma-iommu: Implement NESTED_MSI cookie Eric Auger
2019-02-18 13:54 ` Eric Auger [this message]
2019-02-18 13:54 ` [PATCH v4 17/22] iommu/smmuv3: Report non recoverable faults Eric Auger
2019-02-18 13:54 ` [PATCH v4 18/22] vfio-pci: Add a new VFIO_REGION_TYPE_NESTED region type Eric Auger
2019-02-18 13:55 ` [PATCH v4 19/22] vfio-pci: Register an iommu fault handler Eric Auger
2019-02-25 14:22 ` Vincent Stehlé
2019-02-25 17:30 ` Auger Eric
2019-02-18 13:55 ` [PATCH v4 20/22] vfio_pci: Allow to mmap the fault queue Eric Auger
2019-02-18 13:55 ` [PATCH v4 21/22] vfio-pci: Add VFIO_PCI_DMA_FAULT_IRQ_INDEX Eric Auger
2019-02-18 13:55 ` [PATCH v4 22/22] vfio: Document nested stage control Eric Auger
2019-03-05 8:07 ` [PATCH v4 00/22] SMMUv3 Nested Stage Setup Auger Eric
2019-03-05 16:42 ` Auger Eric
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