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| author | Alexey Kardashevskiy | 2013-08-09 17:09:08 +0200 |
|---|---|---|
| committer | Michael S. Tsirkin | 2013-08-27 07:30:48 +0200 |
| commit | 9eda7d373e9c691c070eddcbe3467b991f67f6bd (patch) | |
| tree | 79b9f450dd31dc5ab348b4620ea2852d993181ab /include/hw/i386/pc.h | |
| parent | virtio: virtqueue_get_avail_bytes: fix desc_pa when loop over the indirect de... (diff) | |
| download | qemu-9eda7d373e9c691c070eddcbe3467b991f67f6bd.tar.gz qemu-9eda7d373e9c691c070eddcbe3467b991f67f6bd.tar.xz qemu-9eda7d373e9c691c070eddcbe3467b991f67f6bd.zip | |
pci: Introduce helper to retrieve a PCI device's DMA address space
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>
Diffstat (limited to 'include/hw/i386/pc.h')
0 files changed, 0 insertions, 0 deletions