Messages in this thread | | | Subject | [PATCH 0/2] Quirk Intel PCH root ports for ACS-like features | From | Alex Williamson <> | Date | Mon, 20 Jan 2014 15:01:40 -0700 |
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As described in 2/2 many Intel root ports lack PCIe ACS capabilities which results in excessively large IOMMU groups. Many of these root ports do provide isolation capabilities, we just need to use device specific mechanisms to enable and verify. Long term, I hope we can round out this list (particularly to include X79 root ports) and more importantly, encourage proper PCIe ACS support in future products. I'm really hoping we can get this in during the 3.14 cycle. Thanks,
Alex
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Alex Williamson (2): pci: Add device specific PCI ACS enable pci/quirks: Enable quirks for PCIe ACS on Intel PCH root ports
drivers/pci/pci.c | 26 +++++- drivers/pci/quirks.c | 201 ++++++++++++++++++++++++++++++++++++++++++++++++++ include/linux/pci.h | 2 3 files changed, 223 insertions(+), 6 deletions(-)
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