CA-412146 Filter out VF when scan #6528
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The method at https://github.com/xapi-project/xen-api/blob/v25.22.0/ocaml/xapi/xapi_pci_helpers.ml#L68-L69 appears to use a different path, but after resolving the symlink, both methods actually refer to the same location. |
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SR-IOV (Single Root I/O Virtualization) is a technology that allows a single physical PCI Express (PCIe) device, such as a network adapter, to be shared efficiently among multiple virtual machines (VMs) or containers. It achieves this by creating Virtual Functions (VFs) that act as lightweight PCIe functions, each assigned to a VM, while the Physical Function (PF) remains responsible for managing the device. Add check in Sysfs.is_physical - check if there is "physfn" in the device dir to filter out VF, then XAPI will not create PIF object for VF during scan. Signed-off-by: Changlei Li <[email protected]>
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219408 Ring3: BST + BVT |
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SR-IOV (Single Root I/O Virtualization) is a technology that allows a single physical PCI Express (PCIe) device, such as a network adapter, to be shared efficiently among multiple virtual machines (VMs) or containers. It achieves this by creating Virtual Functions (VFs) that act as lightweight PCIe functions, each assigned to a VM, while the Physical Function (PF) remains responsible for managing the device.
Add check in Sysfs.is_physical - check if there is "physfn" in the device dir to filter out VF, then XAPI will not create PIF object for VF during scan.