From: Akihiko Odaki <akihiko.od...@daynix.com>
A device cannot be a SR-IOV PF and a VF at the same time.
Signed-off-by: Akihiko Odaki <akihiko.od...@daynix.com>
Message-Id: <20250314-sriov-v9-3-57dae8ae3...@daynix.com>
Tested-by: Yui Washizu <yui.wash...@gmail.com>
Tested-by: Pasha Tatashin <pasha.tatas...@soleen.com>
Reviewed-by: Michael S. Tsirkin <m...@redhat.com>
Signed-off-by: Michael S. Tsirkin <m...@redhat.com>
---
hw/pci/pcie_sriov.c | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/hw/pci/pcie_sriov.c b/hw/pci/pcie_sriov.c
index 1eb4358256..109b2ebccc 100644
--- a/hw/pci/pcie_sriov.c
+++ b/hw/pci/pcie_sriov.c
@@ -42,6 +42,11 @@ bool pcie_sriov_pf_init(PCIDevice *dev, uint16_t offset,
uint8_t *cfg = dev->config + offset;
uint8_t *wmask;
+ if (pci_is_vf(dev)) {
+ error_setg(errp, "a device cannot be a SR-IOV PF and a VF at the same
time");
+ return false;
+ }
+
if (total_vfs &&
(uint32_t)devfn + (uint32_t)(total_vfs - 1) * vf_stride >=
PCI_DEVFN_MAX) {
error_setg(errp, "VF addr overflows");
--
MST
