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.
LeoLiu-oc (3): PCI: Add Zhaoxin Vendor ID PCI: Add ACS quirk for Zhaoxin multi-function devices PCI: Add ACS quirk for Zhaoxin Root/Downstream Ports
drivers/pci/quirks.c | 31 +++++++++++++++++++++++++++++++ include/linux/pci_ids.h | 2 ++ 2 files changed, 33 insertions(+)
On 2021/3/25 18:09, LeoLiu-oc wrote:
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.
LeoLiu-oc (3): PCI: Add Zhaoxin Vendor ID PCI: Add ACS quirk for Zhaoxin multi-function devices PCI: Add ACS quirk for Zhaoxin Root/Downstream Ports
drivers/pci/quirks.c | 31 +++++++++++++++++++++++++++++++ include/linux/pci_ids.h | 2 ++ 2 files changed, 33 insertions(+)
Reviewed-by: Hanjun Guo guohanjun@huawei.com
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Hanjun Guo -
LeoLiu-oc