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[Qemu-devel] [PATCH RESEND 0/2] x86_iommu: Fix segfault when starting on

From: Mohammed Gamal
Subject: [Qemu-devel] [PATCH RESEND 0/2] x86_iommu: Fix segfault when starting on non-PCI machines
Date: Wed, 29 Nov 2017 13:33:11 +0100

[Resending for the second time]

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.

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   | 13 ++-----------
 hw/i386/intel_iommu.c | 13 ++-----------
 hw/i386/x86-iommu.c   | 13 +++++++++++++
 3 files changed, 17 insertions(+), 22 deletions(-)


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