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| author | Eric Auger | 2022-10-12 18:34:48 +0200 |
|---|---|---|
| committer | Michael S. Tsirkin | 2022-11-07 19:12:19 +0100 |
| commit | e72cfabf4ef2f0031e5d0b8129fb1533d383654d (patch) | |
| tree | 571fd505f728bdbe77ded72561f4c1c8f4cb5ef3 /plugins | |
| parent | hw/pci-bridge/cxl-upstream: Add a CDAT table access DOE (diff) | |
| download | qemu-e72cfabf4ef2f0031e5d0b8129fb1533d383654d.tar.gz qemu-e72cfabf4ef2f0031e5d0b8129fb1533d383654d.tar.xz qemu-e72cfabf4ef2f0031e5d0b8129fb1533d383654d.zip | |
hw/virtio/virtio-iommu-pci: Enforce the device is plugged on the root bus
In theory the virtio-iommu-pci could be plugged anywhere in the PCIe
topology and as long as the dt/acpi info are properly built this should
work. However at the moment we fail to do that because the
virtio-iommu-pci BDF is not computed at plug time and in that case
vms->virtio_iommu_bdf gets an incorrect value.
For instance if the virtio-iommu-pci is plugged onto a pcie root port
and the virtio-iommu protects a virtio-block-pci device the guest does
not boot.
So let's do not pretend we do support this case and fail the initialize()
if we detect the virtio-iommu-pci is plugged anywhere else than on the
root bus. Anyway this ability is not needed.
Signed-off-by: Eric Auger <eric.auger@redhat.com>
Message-Id: <20221012163448.121368-1-eric.auger@redhat.com>
Reviewed-by: Jean-Philippe Brucker <jean-philippe@linaro.org>
Tested-by: Jean-Philippe Brucker <jean-philippe@linaro.org>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Diffstat (limited to 'plugins')
0 files changed, 0 insertions, 0 deletions