diff options
| -rw-r--r-- | hw/s390x/s390-pci-vfio.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/hw/s390x/s390-pci-vfio.c b/hw/s390x/s390-pci-vfio.c index 59a2e03873..4f6f61f02e 100644 --- a/hw/s390x/s390-pci-vfio.c +++ b/hw/s390x/s390-pci-vfio.c @@ -132,7 +132,7 @@ static void s390_pci_read_base(S390PCIBusDevice *pbdev, * to the guest based upon the vfio DMA limit. */ vfio_size = pbdev->iommu->max_dma_limit << TARGET_PAGE_BITS; - if (vfio_size < (cap->end_dma - cap->start_dma + 1)) { + if (vfio_size > 0 && vfio_size < cap->end_dma - cap->start_dma + 1) { pbdev->zpci_fn.edma = cap->start_dma + vfio_size - 1; } } |