Starting qemu with
qemu-system-x86_64 -S -M isapc -device {amd|intel}-iommu
leads to a segfault. The code assume PCI bus is present and
tries to access the bus structure without checking.The patch series moves the error checks from vtd_realize() and amdvi_realize() to the generic x86_iommu_realize() and adds a check for PCI bus presence. v2 --> v3: * Use PC_MACHINE macro directly Mohammed Gamal (2): x86_iommu: Move machine check to x86_iommu_realize() x86_iommu: check if machine has PCI bus hw/i386/amd_iommu.c | 10 +--------- hw/i386/intel_iommu.c | 10 +--------- hw/i386/x86-iommu.c | 12 ++++++++++++ 3 files changed, 14 insertions(+), 18 deletions(-) -- 1.8.3.1
