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pcie_sriov: Ensure PF and VF are mutually exclusive

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A device cannot be a SR-IOV PF and a VF at the same time.

Signed-off-by: Akihiko Odaki <akihiko.odaki@daynix.com>
Message-Id: <20250314-sriov-v9-3-57dae8ae3ab5@daynix.com>
Tested-by: Yui Washizu <yui.washidu@gmail.com>
Tested-by: Pasha Tatashin <pasha.tatashin@soleen.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
This commit is contained in:
Akihiko Odaki 2025-03-14 15:14:52 +09:00 • committed by Michael S. Tsirkin
parent a5745ac183
commit 92b6ce3dba
1 changed files with 5 additions and 0 deletions
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5
hw/pci/pcie_sriov.c
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@ -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");