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Subject[PATCH v2 0/2] Add page alignment check in Intel IOMMU.
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From: Kuppuswamy Sathyanarayanan <sathyanarayanan.kuppuswamy@linux.intel.com>

As per Intel vt-d specification, Rev 3.0 (section 7.5.1.1, title "Page Request Descriptor"), Intel IOMMU Page Request Descriptor only provides bits[63:12] of the page address. Hence its required to enforce that the device will only send page request with page-aligned address. So, this patch set adds support to verify whether the device uses page aligned address before enabling the ATS service in Intel IOMMU driver.

Kuppuswamy Sathyanarayanan (2):
PCI: ATS: Add function to check ATS page alignment status.
iommu/vt-d: Enable ATS only if the device uses page aligned address.

drivers/iommu/intel-iommu.c | 1 +
drivers/pci/ats.c | 24 ++++++++++++++++++++++++
include/linux/pci.h | 2 ++
include/uapi/linux/pci_regs.h | 1 +
4 files changed, 28 insertions(+)

--
2.20.1

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