diff options
Diffstat (limited to 'hw/virtio/virtio-iommu.c')
| -rw-r--r-- | hw/virtio/virtio-iommu.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/hw/virtio/virtio-iommu.c b/hw/virtio/virtio-iommu.c index aab97e1527..1326c6ec41 100644 --- a/hw/virtio/virtio-iommu.c +++ b/hw/virtio/virtio-iommu.c @@ -1314,7 +1314,12 @@ static void virtio_iommu_device_realize(DeviceState *dev, Error **errp) * in vfio realize */ s->config.bypass = s->boot_bypass; - s->config.input_range.end = UINT64_MAX; + if (s->aw_bits < 32 || s->aw_bits > 64) { + error_setg(errp, "aw-bits must be within [32,64]"); + return; + } + s->config.input_range.end = + s->aw_bits == 64 ? UINT64_MAX : BIT_ULL(s->aw_bits) - 1; switch (s->granule_mode) { case GRANULE_MODE_4K: @@ -1544,6 +1549,7 @@ static Property virtio_iommu_properties[] = { DEFINE_PROP_BOOL("boot-bypass", VirtIOIOMMU, boot_bypass, true), DEFINE_PROP_GRANULE_MODE("granule", VirtIOIOMMU, granule_mode, GRANULE_MODE_HOST), + DEFINE_PROP_UINT8("aw-bits", VirtIOIOMMU, aw_bits, 64), DEFINE_PROP_END_OF_LIST(), }; |