Allows to retrieve the PCIIOMMUOps based on the SMMU type. This will be
useful when we add support for accelerated SMMUV3 in subsequent patches
as that requires a different set of callbacks for iommu ops.
No special handling is required for now and returns the default ops
in base SMMU Class.
No functional changes intended.
Signed-off-by: Shameer Kolothum <shameerali.kolothum.th...@huawei.com>
---
hw/arm/smmu-common.c | 17 +++++++++++++++--
include/hw/arm/smmu-common.h | 1 +
2 files changed, 16 insertions(+), 2 deletions(-)
diff --git a/hw/arm/smmu-common.c b/hw/arm/smmu-common.c
index 0f1a06cec2..3a1080773a 100644
--- a/hw/arm/smmu-common.c
+++ b/hw/arm/smmu-common.c
@@ -934,6 +934,16 @@ void smmu_inv_notifiers_all(SMMUState *s)
}
}
+static const PCIIOMMUOps *smmu_iommu_ops_by_type(SMMUState *s)
+{
+ SMMUBaseClass *sbc;
+
+ sbc = ARM_SMMU_CLASS(object_class_by_name(TYPE_ARM_SMMU));
+ assert(sbc->iommu_ops);
+
+ return sbc->iommu_ops;
+}
+
static void smmu_base_realize(DeviceState *dev, Error **errp)
{
SMMUState *s = ARM_SMMU(dev);
@@ -962,6 +972,7 @@ static void smmu_base_realize(DeviceState *dev, Error
**errp)
*/
if (pci_bus_is_express(pci_bus) && pci_bus_is_root(pci_bus) &&
object_dynamic_cast(OBJECT(pci_bus)->parent, TYPE_PCI_HOST_BRIDGE)) {
+ const PCIIOMMUOps *iommu_ops;
/*
* This condition matches either the default pcie.0, pxb-pcie, or
* pxb-cxl. For both pxb-pcie and pxb-cxl, parent_dev will be set.
@@ -974,10 +985,11 @@ static void smmu_base_realize(DeviceState *dev, Error
**errp)
}
}
+ iommu_ops = smmu_iommu_ops_by_type(s);
if (s->smmu_per_bus) {
- pci_setup_iommu_per_bus(pci_bus, &smmu_ops, s);
+ pci_setup_iommu_per_bus(pci_bus, iommu_ops, s);
} else {
- pci_setup_iommu(pci_bus, &smmu_ops, s);
+ pci_setup_iommu(pci_bus, iommu_ops, s);
}
return;
}
@@ -1018,6 +1030,7 @@ static void smmu_base_class_init(ObjectClass *klass,
const void *data)
device_class_set_parent_realize(dc, smmu_base_realize,
&sbc->parent_realize);
rc->phases.exit = smmu_base_reset_exit;
+ sbc->iommu_ops = &smmu_ops;
}
static const TypeInfo smmu_base_info = {
diff --git a/include/hw/arm/smmu-common.h b/include/hw/arm/smmu-common.h
index c6f899e403..eb94623555 100644
--- a/include/hw/arm/smmu-common.h
+++ b/include/hw/arm/smmu-common.h
@@ -171,6 +171,7 @@ struct SMMUBaseClass {
/*< public >*/
DeviceRealize parent_realize;
+ const PCIIOMMUOps *iommu_ops;
};
--
2.34.1
