From: Akihiko Odaki <akihiko.odaki@daynix.com>
Date: Fri, 14 Mar 2025 06:14:53 +0000 (+0900)
Subject: pcie_sriov: Check PCI Express for SR-IOV PF
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=d2f5bb7849e463646173564fdadf40e32a32bf6e;p=thirdparty%2Fqemu.git

pcie_sriov: Check PCI Express for SR-IOV PF

SR-IOV requires PCI Express.

Signed-off-by: Akihiko Odaki <akihiko.odaki@daynix.com>
Message-Id: <20250314-sriov-v9-4-57dae8ae3ab5@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>
---

diff --git a/hw/pci/pcie_sriov.c b/hw/pci/pcie_sriov.c
index 109b2ebccc..a5b546abe8 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_express(dev)) {
+        error_setg(errp, "PCI Express is required for SR-IOV PF");
+        return false;
+    }
+
     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;