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| author | Yi Min Zhao <zyimin@linux.vnet.ibm.com> | 2016-06-19 19:20:46 +0800 |
|---|---|---|
| committer | Cornelia Huck <cornelia.huck@de.ibm.com> | 2016-07-11 09:48:05 +0200 |
| commit | f7c40aa1e7feb50bc4d4bc171fa811bdd9a93e51 (patch) | |
| tree | 40df3ca5f514ded25a90bb5709d01fa6ea129812 /hw/s390x | |
| parent | b804e8a62a25b82637b19aea68ab7d5a7a1ce0fb (diff) | |
| download | qemu-f7c40aa1e7feb50bc4d4bc171fa811bdd9a93e51.zip | |
s390x/pci: fix failures of dma map/unmap
In commit d78c19b5cf4821d0c198f4132a085bdbf19dda4c, vfio code stores
the IOMMU's offset_within_address_space and adjusts the IOVA before
calling vfio_dma_map/vfio_dma_unmap. But s390_translate_iommu already
considers the base address of an IOMMU memory region.
Thus we use pal as the size and 0x0 as the base address to initialize
IOMMU memory subregion.
Signed-off-by: Yi Min Zhao <zyimin@linux.vnet.ibm.com>
Reviewed-by: Pierre Morel <pmorel@linux.vnet.ibm.com>
Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Diffstat (limited to 'hw/s390x')
| -rw-r--r-- | hw/s390x/s390-pci-bus.c | 6 |
1 files changed, 2 insertions, 4 deletions
diff --git a/hw/s390x/s390-pci-bus.c b/hw/s390x/s390-pci-bus.c index a77c10ce9e..8f03b82469 100644 --- a/hw/s390x/s390-pci-bus.c +++ b/hw/s390x/s390-pci-bus.c @@ -498,11 +498,9 @@ static const MemoryRegionOps s390_msi_ctrl_ops = { void s390_pci_iommu_enable(S390PCIBusDevice *pbdev) { - uint64_t size = pbdev->pal - pbdev->pba + 1; - memory_region_init_iommu(&pbdev->iommu_mr, OBJECT(&pbdev->mr), - &s390_iommu_ops, "iommu-s390", size); - memory_region_add_subregion(&pbdev->mr, pbdev->pba, &pbdev->iommu_mr); + &s390_iommu_ops, "iommu-s390", pbdev->pal + 1); + memory_region_add_subregion(&pbdev->mr, 0, &pbdev->iommu_mr); pbdev->iommu_enabled = true; } |