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| author | Eduardo Habkost <ehabkost@redhat.com> | 2017-05-08 17:08:12 -0300 |
|---|---|---|
| committer | Michael S. Tsirkin <mst@redhat.com> | 2017-05-10 22:04:23 +0300 |
| commit | ef0e8fc768a561dd13a86420b3268f6f3d5d0621 (patch) | |
| tree | fcaf07919181da1a98c28b4af0c4ecb3ab43a696 /hw/acpi/piix4.c | |
| parent | 465238d9f873a6251223db1669aa4766822a8783 (diff) | |
iommu: Don't crash if machine is not PC_MACHINE
Currently it's possible to crash QEMU using "-device *-iommu" and
"-machine none":
$ qemu-system-x86_64 -machine none -device amd-iommu
qemu/hw/i386/amd_iommu.c:1140:amdvi_realize: Object 0x55627dafbc90 is not an instance of type generic-pc-machine
Aborted (core dumped)
$ qemu-system-x86_64 -machine none -device intel-iommu
qemu/hw/i386/intel_iommu.c:2972:vtd_realize: Object 0x56292ec0bc90 is not an instance of type generic-pc-machine
Aborted (core dumped)
Fix amd-iommu and intel-iommu to ensure the current machine is really a
TYPE_PC_MACHINE instance at their realize methods.
Resulting error messages:
$ qemu-system-x86_64 -machine none -device amd-iommu
qemu-system-x86_64: -device amd-iommu: Machine-type 'none' not supported by amd-iommu
$ qemu-system-x86_64 -machine none -device intel-iommu
qemu-system-x86_64: -device intel-iommu: Machine-type 'none' not supported by intel-iommu
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Diffstat (limited to 'hw/acpi/piix4.c')
0 files changed, 0 insertions, 0 deletions