diff options
Diffstat (limited to 'src/hw/virtio-scsi.c')
| -rw-r--r-- | src/hw/virtio-scsi.c | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/src/hw/virtio-scsi.c b/src/hw/virtio-scsi.c index 369c9813..79bda0bb 100644 --- a/src/hw/virtio-scsi.c +++ b/src/hw/virtio-scsi.c @@ -239,6 +239,19 @@ init_virtio_scsi_mmio(void *mmio) vp_init_mmio(vp, mmio); u8 status = VIRTIO_CONFIG_S_ACKNOWLEDGE | VIRTIO_CONFIG_S_DRIVER; + u64 features = vp_get_features(vp); + u64 version1 = 1ull << VIRTIO_F_VERSION_1; + if (features & version1) { + u64 iommu_platform = 1ull << VIRTIO_F_IOMMU_PLATFORM; + + vp_set_features(vp, features & (version1 | iommu_platform)); + vp_set_status(vp, VIRTIO_CONFIG_S_FEATURES_OK); + if (!(vp_get_status(vp) & VIRTIO_CONFIG_S_FEATURES_OK)) { + dprintf(1, "device didn't accept features: %pP\n", mmio); + goto fail; + } + } + if (vp_find_vq(vp, 2, &vq) < 0 ) { dprintf(1, "fail to find vq for virtio-scsi-mmio %p\n", mmio); goto fail; |