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| author | Akihiko Odaki <akihiko.odaki@daynix.com> | 2025-03-14 15:14:52 +0900 |
|---|---|---|
| committer | Michael S. Tsirkin <mst@redhat.com> | 2025-05-14 05:39:14 -0400 |
| commit | 92b6ce3dba26bd3734b528bda7f9a9dee2ee7bb4 (patch) | |
| tree | 232bdf064bb9bebd10e040defa337a4fb03e7e64 | |
| parent | a5745ac183e606937f22bfbf59a7f18e74f3c464 (diff) | |
| download | qemu-92b6ce3dba26bd3734b528bda7f9a9dee2ee7bb4.zip qemu-92b6ce3dba26bd3734b528bda7f9a9dee2ee7bb4.tar.gz qemu-92b6ce3dba26bd3734b528bda7f9a9dee2ee7bb4.tar.bz2 | |
pcie_sriov: Ensure PF and VF are mutually exclusive
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>
| -rw-r--r-- | hw/pci/pcie_sriov.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/hw/pci/pcie_sriov.c b/hw/pci/pcie_sriov.c index 1eb4358..109b2eb 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"); |