From 92b6ce3dba26bd3734b528bda7f9a9dee2ee7bb4 Mon Sep 17 00:00:00 2001 From: Akihiko Odaki Date: Fri, 14 Mar 2025 15:14:52 +0900 Subject: [PATCH] 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 Message-Id: <20250314-sriov-v9-3-57dae8ae3ab5@daynix.com> Tested-by: Yui Washizu Tested-by: Pasha Tatashin Reviewed-by: Michael S. Tsirkin Signed-off-by: Michael S. Tsirkin --- 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"); -- 2.39.5