On 1/10/19 8:00 AM, Pierre Morel wrote:
The size of the accessible iommu memory region in the guest is given to the IOMMU by the guest through the mpcifc request specifying the PCI Base Address and the PCI Address Limit.Let set the size of the IOMMU region to: (PCI Address Limit) - (PCI Base Address) + 1. Signed-off-by: Pierre Morel <pmo...@linux.ibm.com> --- hw/s390x/s390-pci-bus.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/hw/s390x/s390-pci-bus.c b/hw/s390x/s390-pci-bus.c index 69e0671..e97696a 100644 --- a/hw/s390x/s390-pci-bus.c +++ b/hw/s390x/s390-pci-bus.c @@ -660,7 +660,7 @@ void s390_pci_iommu_enable(S390PCIIOMMU *iommu) char *name = g_strdup_printf("iommu-s390-%04x", iommu->pbdev->uid); memory_region_init_iommu(&iommu->iommu_mr, sizeof(iommu->iommu_mr), TYPE_S390_IOMMU_MEMORY_REGION, OBJECT(&iommu->mr), - name, iommu->pal + 1); + name, iommu->pal - iommu->pba + 1); iommu->enabled = true; memory_region_add_subregion(&iommu->mr, 0, MEMORY_REGION(&iommu->iommu_mr)); g_free(name);
Acked-by: Collin Walling <wall...@linux.ibm.com>
