You're right. After I manually load vfio_iommu_type1, the error is gone.
** Changed in: qemu
Status: New => Invalid
--
You received this bug notification because you are a member of qemu-
devel-ml, which is subscribed to QEMU.
https://bugs.launchpad.net/bugs/1529187
Title:
vfio passtrhough fails at 'No available IOMMU models' on Intel BDW-EP
platform
Status in QEMU:
Invalid
Bug description:
Environment:
------------
Host OS (ia32/ia32e/IA64): ia32e
Guest OS (ia32/ia32e/IA64): ia32e
Guest OS Type (Linux/Windows): linux
kvm.git Commit: da3f7ca3
qemu.git Commit: 38a762fe
Host Kernel Version: 4.4.0-rc2
Hardware: BDW EP (Intel(R) Xeon(R) CPU E5-2699 v4 @ 2.20GHz, Grantley-EP)
Bug description:
--------------------------
when create guest with vt-d assignment using vfio-pci driver, the guest can
not be created.
Warning 'No available IOMMU models'
Reproduce steps:
----------------
1. bind device to vfio-pci driver
2. qemu-system-x86_64 -enable-kvm -m 512 -smp 2 -device
vfio-pci,host=81:00.0 -net none -drive
file=rhel7u2.qcow2,if=none,id=virtio-disk0 -device
virtio-blk-pci,drive=virtio-disk0
Current result:
----------------
qemu-system-x86_64: -device vfio-pci,host=81:00.0: vfio: No available IOMMU
models
qemu-system-x86_64: -device vfio-pci,host=81:00.0: vfio: failed to setup
container for group 41
qemu-system-x86_64: -device vfio-pci,host=81:00.0: vfio: failed to get group
41
qemu-system-x86_64: -device vfio-pci,host=81:00.0: Device initialization
failed
Expected result:
----------------
guest can be created
Basic root-causing log:
----------------------
To manage notifications about this bug go to:
https://bugs.launchpad.net/qemu/+bug/1529187/+subscriptions
