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| author | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-12-10 13:26:17 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-12-10 13:26:17 +0100 |
| commit | c20c809f925910737bdb932fe86cfa261a12e559 (patch) | |
| tree | 9bcc454155d4efc894a6e7168bf5fe9222f4ddd7 /Documentation/ABI | |
| parent | Merge 4.20-rc6 into char-misc-next (diff) | |
| parent | thunderbolt: Export IOMMU based DMA protection support to userspace (diff) | |
| download | linux-c20c809f925910737bdb932fe86cfa261a12e559.tar.xz linux-c20c809f925910737bdb932fe86cfa261a12e559.zip | |
Merge tag 'thunderbolt-for-v4.21' of git://git.kernel.org/pub/scm/linux/kernel/git/westeri/thunderbolt into char-misc-next
Mika writes:
thunderbolt: Changes for v4.21 merge window
* tag 'thunderbolt-for-v4.21' of git://git.kernel.org/pub/scm/linux/kernel/git/westeri/thunderbolt:
thunderbolt: Export IOMMU based DMA protection support to userspace
iommu/vt-d: Do not enable ATS for untrusted devices
iommu/vt-d: Force IOMMU on for platform opt in hint
PCI / ACPI: Identify untrusted PCI devices
Diffstat (limited to 'Documentation/ABI')
| -rw-r--r-- | Documentation/ABI/testing/sysfs-bus-thunderbolt | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/Documentation/ABI/testing/sysfs-bus-thunderbolt b/Documentation/ABI/testing/sysfs-bus-thunderbolt index 151584a1f950..b21fba14689b 100644 --- a/Documentation/ABI/testing/sysfs-bus-thunderbolt +++ b/Documentation/ABI/testing/sysfs-bus-thunderbolt @@ -21,6 +21,15 @@ Description: Holds a comma separated list of device unique_ids that If a device is authorized automatically during boot its boot attribute is set to 1. +What: /sys/bus/thunderbolt/devices/.../domainX/iommu_dma_protection +Date: Mar 2019 +KernelVersion: 4.21 +Contact: thunderbolt-software@lists.01.org +Description: This attribute tells whether the system uses IOMMU + for DMA protection. Value of 1 means IOMMU is used 0 means + it is not (DMA protection is solely based on Thunderbolt + security levels). + What: /sys/bus/thunderbolt/devices/.../domainX/security Date: Sep 2017 KernelVersion: 4.13 |