add new classifier result

1 files changed, 30 insertions, 0 deletions

diff --git a/results/classifier/105/instruction/703 b/results/classifier/105/instruction/703
new file mode 100644
index 000000000..4cbec61b4
--- /dev/null
+++ b/results/classifier/105/instruction/703
@@ -0,0 +1,30 @@
+instruction: 0.883
+device: 0.834
+boot: 0.718
+semantic: 0.652
+vnc: 0.623
+socket: 0.586
+graphic: 0.586
+KVM: 0.574
+network: 0.507
+mistranslation: 0.299
+other: 0.236
+assembly: 0.156
+
+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)