| commit | c6cbc29d36fe8df078776ed715c37cebac582238 | |
| author | Peter Xu <peterx@redhat.com> | |
| Mon, 16 Sep 2019 08:07:17 +0000 (16 16:07 +0800) | ||
| committer | Michael S. Tsirkin <mst@redhat.com> | |
| Mon, 16 Sep 2019 10:57:24 +0000 (16 06:57 -0400) | ||
| tree | b2e49962a3fd20c243d72b052717ce422e89f048 | treesnapshot (tar.gz zip) |
| parent | d2321d31ff98b75b652c2b1594f00a4cfd48102a | commitdiff |
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>
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>
| hw/i386/pc.c | diffblobblamehistory |