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| author | Alexey Kardashevskiy <aik@ozlabs.ru> | 2014-05-27 15:36:32 +1000 |
|---|---|---|
| committer | Alexander Graf <agraf@suse.de> | 2014-06-16 13:24:39 +0200 |
| commit | cca7fad5765251fece44cd230156a101867522dd (patch) | |
| tree | 6c7ff9d97ccd3acb87ec32d5915b0e1433690d84 /include | |
| parent | da6ccee4184482b45a2cb562c7373639792fc58d (diff) | |
| download | qemu-cca7fad5765251fece44cd230156a101867522dd.tar.gz qemu-cca7fad5765251fece44cd230156a101867522dd.tar.bz2 qemu-cca7fad5765251fece44cd230156a101867522dd.zip | |
spapr_pci: spapr_iommu: Make DMA window a subregion
Currently the default DMA window is represented by a single MemoryRegion.
However there can be more than just one window so we need
a "root" memory region to be separated from the actual DMA window(s).
This introduces a "root" IOMMU memory region and adds a subregion for
the default DMA 32bit window. Following patches will add other
subregion(s).
This initializes a default DMA window subregion size to the guest RAM
size as this window can be switched into "bypass" mode which implements
direct DMA mapping.
Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Signed-off-by: Alexander Graf <agraf@suse.de>
Diffstat (limited to 'include')
| -rw-r--r-- | include/hw/pci-host/spapr.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/hw/pci-host/spapr.h b/include/hw/pci-host/spapr.h index 0f428a1af9..fcb62137a2 100644 --- a/include/hw/pci-host/spapr.h +++ b/include/hw/pci-host/spapr.h @@ -64,6 +64,7 @@ struct sPAPRPHBState { uint64_t dma_window_size; sPAPRTCETable *tcet; AddressSpace iommu_as; + MemoryRegion iommu_root; struct spapr_pci_lsi { uint32_t irq; |