Lots of Zhaoxin PCIe components have no ACS Capability Structure, but do have ACS-like capability which ensures DMA isolation. This patch makes isolated devices could be directly assigned to different VMs through IOMMU. Raymond Pang (3): PCI: Add Zhaoxin Vendor ID PCI: Add ACS quirk for Zhaoxin's multi-function devices PCI: Add ACS quirk for Root/Downstream Ports drivers/pci/quirks.c | 30 ++++++++++++++++++++++++++++++ include/linux/pci_ids.h | 2 ++ 2 files changed, 32 insertions(+) -- 2.26.0