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[PATCH v5 3/8] pcie_sriov: Ensure PF and VF are mutually exclusive
From: |
Akihiko Odaki |
Subject: |
[PATCH v5 3/8] pcie_sriov: Ensure PF and VF are mutually exclusive |
Date: |
Mon, 15 Jul 2024 14:19:09 +0900 |
A device cannot be a SR-IOV PF and a VF at the same time.
Signed-off-by: Akihiko Odaki <akihiko.odaki@daynix.com>
---
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 56523ab4e833..ec8fc0757b92 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) {
uint16_t ari_cap = pcie_find_capability(dev, PCI_EXT_CAP_ID_ARI);
uint16_t first_vf_devfn = dev->devfn + vf_offset;
--
2.45.2
- [PATCH v5 0/8] virtio-net: add support for SR-IOV emulation, Akihiko Odaki, 2024/07/15
- [PATCH v5 1/8] hw/pci: Do not add ROM BAR for SR-IOV VF, Akihiko Odaki, 2024/07/15
- [PATCH v5 4/8] pcie_sriov: Check PCI Express for SR-IOV PF, Akihiko Odaki, 2024/07/15
- [PATCH v5 2/8] hw/pci: Fix SR-IOV VF number calculation, Akihiko Odaki, 2024/07/15
- [PATCH v5 5/8] pcie_sriov: Allow user to create SR-IOV device, Akihiko Odaki, 2024/07/15
- [PATCH v5 7/8] virtio-net: Implement SR-IOV VF, Akihiko Odaki, 2024/07/15
- [PATCH v5 3/8] pcie_sriov: Ensure PF and VF are mutually exclusive,
Akihiko Odaki <=
- [PATCH v5 6/8] virtio-pci: Implement SR-IOV PF, Akihiko Odaki, 2024/07/15
- [PATCH v5 8/8] docs: Document composable SR-IOV device, Akihiko Odaki, 2024/07/15
- Re: [PATCH v5 0/8] virtio-net: add support for SR-IOV emulation, Michael S. Tsirkin, 2024/07/30