The bind_guest_msi() callback checks the domain is NESTED and redirect to the dma-iommu implementation.
Signed-off-by: Eric Auger <[email protected]> --- drivers/iommu/arm-smmu-v3.c | 16 ++++++++++++++++ 1 file changed, 16 insertions(+) diff --git a/drivers/iommu/arm-smmu-v3.c b/drivers/iommu/arm-smmu-v3.c index e4c7ae8..ccd55d3 100644 --- a/drivers/iommu/arm-smmu-v3.c +++ b/drivers/iommu/arm-smmu-v3.c @@ -2025,6 +2025,21 @@ static void arm_smmu_put_resv_regions(struct device *dev, kfree(entry); } +static int arm_smmu_bind_guest_msi(struct iommu_domain *domain, + struct iommu_guest_msi_binding *binding) +{ + struct arm_smmu_domain *smmu_domain = to_smmu_domain(domain); + struct arm_smmu_device *smmu = smmu_domain->smmu; + + if (!smmu) + return -EINVAL; + + if (smmu_domain->stage != ARM_SMMU_DOMAIN_NESTED) + return -EINVAL; + + return iommu_dma_bind_doorbell(domain, binding); +} + static int arm_smmu_bind_guest_stage(struct iommu_domain *domain, struct device *dev, struct iommu_guest_stage_config *cfg) @@ -2153,6 +2168,7 @@ static struct iommu_ops arm_smmu_ops = { .of_xlate = arm_smmu_of_xlate, .get_resv_regions = arm_smmu_get_resv_regions, .put_resv_regions = arm_smmu_put_resv_regions, + .bind_guest_msi = arm_smmu_bind_guest_msi, .bind_guest_stage = arm_smmu_bind_guest_stage, .unbind_guest_stage = arm_smmu_unbind_guest_stage, .tlb_invalidate = arm_smmu_tlb_invalidate, -- 2.5.5 _______________________________________________ iommu mailing list [email protected] https://lists.linuxfoundation.org/mailman/listinfo/iommu
