From 78f9d7fd1989311040beff54979bcb2a1ba0aff2 Mon Sep 17 00:00:00 2001 From: Akihiko Odaki Date: Mon, 15 Jul 2024 14:19:09 +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: <20240715-sriov-v5-3-3f5539093ffc@daynix.com> 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 56523ab4e8..6c79658b4c 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 both an SR-IOV PF and a VF"); + return false; + } + if (total_vfs) { uint16_t ari_cap = pcie_find_capability(dev, PCI_EXT_CAP_ID_ARI); uint16_t first_vf_devfn = dev->devfn + vf_offset;