diff options
| author | Peter Xu <peterx@redhat.com> | 2018-01-31 12:04:01 +0800 |
|---|---|---|
| committer | Gerd Hoffmann <kraxel@redhat.com> | 2018-02-02 08:53:22 +0100 |
| commit | 34e304e97576a9e17680c868c00ff524a981007b (patch) | |
| tree | 31bc30eb7ef4f43b1382cc9d1162fd653e60f742 | |
| parent | b05631954d6dfe93340d516660397e2c1a2a5dd6 (diff) | |
virtio-gpu: disallow vIOMMU
virtio-gpu has special code path that bypassed vIOMMU protection. So
for now let's disable iommu_platform for the device until we fully
support that (if needed).
After the patch, both virtio-vga and virtio-gpu won't allow to boot with
iommu_platform parameter set.
CC: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Peter Xu <peterx@redhat.com>
Message-id: 20180131040401.3550-1-peterx@redhat.com
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
| -rw-r--r-- | hw/display/virtio-gpu-pci.c | 8 | ||||
| -rw-r--r-- | hw/display/virtio-gpu.c | 5 |
2 files changed, 12 insertions, 1 deletions
diff --git a/hw/display/virtio-gpu-pci.c b/hw/display/virtio-gpu-pci.c index ef92c4ad6f..3519dc80b1 100644 --- a/hw/display/virtio-gpu-pci.c +++ b/hw/display/virtio-gpu-pci.c @@ -28,10 +28,16 @@ static void virtio_gpu_pci_realize(VirtIOPCIProxy *vpci_dev, Error **errp) VirtIOGPU *g = &vgpu->vdev; DeviceState *vdev = DEVICE(&vgpu->vdev); int i; + Error *local_error = NULL; qdev_set_parent_bus(vdev, BUS(&vpci_dev->bus)); virtio_pci_force_virtio_1(vpci_dev); - object_property_set_bool(OBJECT(vdev), true, "realized", errp); + object_property_set_bool(OBJECT(vdev), true, "realized", &local_error); + + if (local_error) { + error_propagate(errp, local_error); + return; + } for (i = 0; i < g->conf.max_outputs; i++) { object_property_set_link(OBJECT(g->scanout[i].con), diff --git a/hw/display/virtio-gpu.c b/hw/display/virtio-gpu.c index 274e365713..6658f6c6a6 100644 --- a/hw/display/virtio-gpu.c +++ b/hw/display/virtio-gpu.c @@ -1173,6 +1173,11 @@ static void virtio_gpu_device_realize(DeviceState *qdev, Error **errp) Error *local_err = NULL; int i; + if (virtio_host_has_feature(vdev, VIRTIO_F_IOMMU_PLATFORM)) { + error_setg(errp, "virtio-gpu does not support vIOMMU yet"); + return; + } + if (g->conf.max_outputs > VIRTIO_GPU_MAX_SCANOUTS) { error_setg(errp, "invalid max_outputs > %d", VIRTIO_GPU_MAX_SCANOUTS); return; |