HostIOMMUDevice: Store the aliased bus and devfn
Store the aliased bus and devfn in the HostIOMMUDevice.
This will be useful to handle info that are iommu group
specific and not device specific (such as reserved
iova ranges).
Signed-off-by: Eric Auger <eric.auger@redhat.com>
Reviewed-by: Zhenzhong Duan <zhenzhong.duan@intel.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
diff --git a/hw/pci/pci.c b/hw/pci/pci.c
index c8a8aab..50b86d5 100644
--- a/hw/pci/pci.c
+++ b/hw/pci/pci.c
@@ -2745,11 +2745,15 @@
bool pci_device_set_iommu_device(PCIDevice *dev, HostIOMMUDevice *hiod,
Error **errp)
{
- PCIBus *iommu_bus;
+ PCIBus *iommu_bus, *aliased_bus;
+ int aliased_devfn;
/* set_iommu_device requires device's direct BDF instead of aliased BDF */
- pci_device_get_iommu_bus_devfn(dev, &iommu_bus, NULL, NULL);
+ pci_device_get_iommu_bus_devfn(dev, &iommu_bus,
+ &aliased_bus, &aliased_devfn);
if (iommu_bus && iommu_bus->iommu_ops->set_iommu_device) {
+ hiod->aliased_bus = aliased_bus;
+ hiod->aliased_devfn = aliased_devfn;
return iommu_bus->iommu_ops->set_iommu_device(pci_get_bus(dev),
iommu_bus->iommu_opaque,
dev->devfn, hiod, errp);
diff --git a/include/sysemu/host_iommu_device.h b/include/sysemu/host_iommu_device.h
index 40e0fa1..ee6c813 100644
--- a/include/sysemu/host_iommu_device.h
+++ b/include/sysemu/host_iommu_device.h
@@ -35,6 +35,8 @@
char *name;
void *agent; /* pointer to agent device, ie. VFIO or VDPA device */
+ PCIBus *aliased_bus;
+ int aliased_devfn;
HostIOMMUDeviceCaps caps;
};
