diff options
Diffstat (limited to 'results/classifier/accel-gemma3:12b/kvm/703')
| -rw-r--r-- | results/classifier/accel-gemma3:12b/kvm/703 | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/results/classifier/accel-gemma3:12b/kvm/703 b/results/classifier/accel-gemma3:12b/kvm/703 new file mode 100644 index 000000000..2beed929f --- /dev/null +++ b/results/classifier/accel-gemma3:12b/kvm/703 @@ -0,0 +1,18 @@ + +Resizable BAR (ReBAR) support on VFIO +Additional information: +Currently `vfio_add_ext_cap()` doesn't pass ReBAR support option to VFIO. + +There was a report that removing the line you see below makes it boot, but the system is not stable. +Needs investigation. + +[https://github.com/qemu/qemu/blob/2255564fd21059960966b47212def9069cb56077/hw/vfio/pci.c#L2089](https://github.com/qemu/qemu/blob/2255564fd21059960966b47212def9069cb56077/hw/vfio/pci.c#L2089) +``` switch (cap_id) { + case 0: /* kernel masked capability */ + case PCI_EXT_CAP_ID_SRIOV: /* Read-only VF BARs confuse OVMF */ + case PCI_EXT_CAP_ID_ARI: /* XXX Needs next function virtualization */ + case PCI_EXT_CAP_ID_REBAR: /* Can't expose read-only */ + trace_vfio_add_ext_cap_dropped(vdev->vbasedev.name, cap_id, next); +``` + +[Discussion link](https://forum.level1techs.com/t/smart-access-memory-vs-qemu-kvm/169447) |