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| author | Lu Baolu <[email protected]> | 2021-08-18 13:48:47 +0000 |
|---|---|---|
| committer | Joerg Roedel <[email protected]> | 2021-08-19 08:41:08 +0000 |
| commit | 792fb43ce2c98878f1539c1d3fdecc1d7a7d78fd (patch) | |
| tree | f2a9e8aa1379f84db4d2bb636e5f591529c166d6 /tools/perf/scripts/python/libxed.py | |
| parent | iommu/vt-d: Refactor Kconfig a bit (diff) | |
| download | kernel-792fb43ce2c98878f1539c1d3fdecc1d7a7d78fd.tar.gz kernel-792fb43ce2c98878f1539c1d3fdecc1d7a7d78fd.zip | |
iommu/vt-d: Enable Intel IOMMU scalable mode by default
The commit 8950dcd83ae7d ("iommu/vt-d: Leave scalable mode default off")
leaves the scalable mode default off and end users could turn it on with
"intel_iommu=sm_on". Using the Intel IOMMU scalable mode for kernel DMA,
user-level device access and Shared Virtual Address have been enabled.
This enables the scalable mode by default if the hardware advertises the
support and adds kernel options of "intel_iommu=sm_on/sm_off" for end
users to configure it through the kernel parameters.
Suggested-by: Ashok Raj <[email protected]>
Suggested-by: Sanjay Kumar <[email protected]>
Signed-off-by: Lu Baolu <[email protected]>
Cc: Kevin Tian <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Joerg Roedel <[email protected]>
Diffstat (limited to 'tools/perf/scripts/python/libxed.py')
0 files changed, 0 insertions, 0 deletions