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,
will@kernel.org, maz@kernel.org, robin.murphy@arm.com,
joro@8bytes.org, alex.williamson@redhat.com, tn@semihalf.com,
zhukeqian1@huawei.com
Cc: jean-philippe@linaro.org, wangxingang5@huawei.com,
lushenming@huawei.com, jiangkunkun@huawei.com,
vivek.gautam@arm.com, vsethi@nvidia.com, zhangfei.gao@linaro.org
Subject: [PATCH v14 11/13] iommu/smmuv3: Implement bind/unbind_guest_msi
Date: Tue, 23 Feb 2021 21:56:32 +0100 [thread overview]
Message-ID: <20210223205634.604221-12-eric.auger@redhat.com> (raw)
In-Reply-To: <20210223205634.604221-1-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>
---
v6 -> v7:
- remove device handle argument
---
drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c | 43 +++++++++++++++++++++
1 file changed, 43 insertions(+)
diff --git a/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c b/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c
index ca6f796aeb95..f783c2804872 100644
--- a/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c
+++ b/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c
@@ -2922,6 +2922,47 @@ static void arm_smmu_get_resv_regions(struct device *dev,
iommu_dma_get_resv_regions(dev, head);
}
+static int
+arm_smmu_bind_guest_msi(struct iommu_domain *domain,
+ 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, giova, gpa, size);
+out:
+ mutex_unlock(&smmu_domain->init_mutex);
+ return ret;
+}
+
+static void
+arm_smmu_unbind_guest_msi(struct iommu_domain *domain, 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, 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)
{
@@ -3182,6 +3223,8 @@ 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,
.dev_has_feat = arm_smmu_dev_has_feature,
.dev_feat_enabled = arm_smmu_dev_feature_enabled,
.dev_enable_feat = arm_smmu_dev_enable_feature,
--
2.26.2
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next prev parent reply other threads:[~2021-02-23 20:59 UTC|newest]
Thread overview: 47+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-02-23 20:56 [PATCH v14 00/13] SMMUv3 Nested Stage Setup (IOMMU part) Eric Auger
2021-02-23 20:56 ` [PATCH v14 01/13] iommu: Introduce attach/detach_pasid_table API Eric Auger
2021-02-23 20:56 ` [PATCH v14 02/13] iommu: Introduce bind/unbind_guest_msi Eric Auger
2021-02-23 20:56 ` [PATCH v14 03/13] iommu/smmuv3: Allow s1 and s2 configs to coexist Eric Auger
2021-02-23 20:56 ` [PATCH v14 04/13] iommu/smmuv3: Get prepared for nested stage support Eric Auger
2021-02-23 20:56 ` [PATCH v14 05/13] iommu/smmuv3: Implement attach/detach_pasid_table Eric Auger
2021-03-02 8:35 ` Keqian Zhu
2021-03-19 13:15 ` Auger Eric
2021-03-22 6:23 ` Keqian Zhu
2021-02-23 20:56 ` [PATCH v14 06/13] iommu/smmuv3: Allow stage 1 invalidation with unmanaged ASIDs Eric Auger
2021-03-30 9:17 ` Zenghui Yu
2021-04-01 9:38 ` Auger Eric
2021-04-01 12:37 ` Kunkun Jiang
2021-04-08 12:30 ` Auger Eric
2021-04-09 4:48 ` Kunkun Jiang
2021-04-09 8:31 ` Auger Eric
2021-04-09 9:43 ` Kunkun Jiang
2021-02-23 20:56 ` [PATCH v14 07/13] iommu/smmuv3: Implement cache_invalidate Eric Auger
2021-03-04 7:55 ` chenxiang (M)
2021-03-19 17:36 ` Auger Eric
2021-03-22 6:40 ` [Linuxarm] " chenxiang (M)
2021-03-22 9:05 ` Auger Eric
2021-03-23 1:28 ` chenxiang (M)
2021-04-01 6:11 ` Zenghui Yu
2021-04-01 12:06 ` Auger Eric
2021-02-23 20:56 ` [PATCH v14 08/13] dma-iommu: Implement NESTED_MSI cookie Eric Auger
2021-04-07 7:39 ` Zenghui Yu
2021-04-10 13:34 ` Auger Eric
2021-02-23 20:56 ` [PATCH v14 09/13] iommu/smmuv3: Nested mode single MSI doorbell per domain enforcement Eric Auger
2021-02-23 20:56 ` [PATCH v14 10/13] iommu/smmuv3: Enforce incompatibility between nested mode and HW MSI regions Eric Auger
2021-02-23 20:56 ` Eric Auger [this message]
2021-02-23 20:56 ` [PATCH v14 12/13] iommu/smmuv3: report additional recoverable faults Eric Auger
2021-02-23 20:56 ` [PATCH v14 13/13] iommu/smmuv3: Accept configs with more than one context descriptor Eric Auger
2021-03-30 9:23 ` Zenghui Yu
2021-04-01 11:48 ` Auger Eric
2021-04-01 12:38 ` Shameerali Kolothum Thodi
2021-04-01 13:20 ` Auger Eric
2021-02-25 16:06 ` [PATCH v14 00/13] SMMUv3 Nested Stage Setup (IOMMU part) Auger Eric
2021-04-22 15:04 ` Sumit Gupta
2021-04-23 13:00 ` Jean-Philippe Brucker
2021-04-23 17:16 ` Sumit Gupta
2021-04-23 17:58 ` Krishna Reddy
2021-04-23 18:19 ` Sumit Gupta
2021-04-24 9:06 ` Marc Zyngier
2021-04-24 11:29 ` Sumit Gupta
2021-03-18 0:16 ` Krishna Reddy
2021-03-19 13:17 ` Auger Eric
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