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| author | Peter Xu | 2019-09-16 10:07:17 +0200 |
|---|---|---|
| committer | Michael S. Tsirkin | 2019-09-16 12:57:24 +0200 |
| commit | c6cbc29d36fe8df078776ed715c37cebac582238 (patch) | |
| tree | b2e49962a3fd20c243d72b052717ce422e89f048 /scripts/qapi/common.py | |
| parent | qdev/machine: Introduce hotplug_allowed hook (diff) | |
| download | qemu-c6cbc29d36fe8df078776ed715c37cebac582238.tar.gz qemu-c6cbc29d36fe8df078776ed715c37cebac582238.tar.xz qemu-c6cbc29d36fe8df078776ed715c37cebac582238.zip | |
pc/q35: Disallow vfio-pci hotplug without VT-d caching mode
Instead of bailing out when trying to hotplug a vfio-pci device with
below configuration:
-device intel-iommu,caching-mode=off
With this we can return a warning message to the user via QMP/HMP and
the VM will continue to work after failing the hotplug:
(qemu) device_add vfio-pci,bus=root.3,host=05:00.0,id=vfio1
Error: Device assignment is not allowed without enabling caching-mode=on for Intel IOMMU.
Reviewed-by: Eric Auger <eric.auger@redhat.com>
Signed-off-by: Peter Xu <peterx@redhat.com>
Message-Id: <20190916080718.3299-4-peterx@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Diffstat (limited to 'scripts/qapi/common.py')
0 files changed, 0 insertions, 0 deletions