A PCI device's DMA address space (possibly an IOMMU) is returned by a method on the PCIBus. At the moment that only has one caller, so the method is simply open coded. We'll need another caller for VFIO, so this patch introduces a helper/wrapper function. If IOMMU is not set, the pci_device_iommu_address_space() function returns the parent's IOMMU skipping the "bus master" address space as otherwise proper emulation would require more effort for no benefit. Signed-off-by: David Gibson <david@gibson.dropbear.id.au> [aik: added inheritance from parent if iommu is not set for the current bus] Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru> Signed-off-by: Michael S. Tsirkin <mst@redhat.com> |
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.. | ||
msi.h | ||
msix.h | ||
pci.h | ||
pci_bridge.h | ||
pci_bus.h | ||
pci_host.h | ||
pci_ids.h | ||
pci_regs.h | ||
pcie.h | ||
pcie_aer.h | ||
pcie_host.h | ||
pcie_port.h | ||
pcie_regs.h | ||
shpc.h | ||
slotid_cap.h |