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* [PATCH v10 0/3] Enhance IOMMU default DMA mode build options
@ 2021-06-03 13:58 ` John Garry
  0 siblings, 0 replies; 16+ messages in thread
From: John Garry @ 2021-06-03 13:58 UTC (permalink / raw)
  To: joro, will, dwmw2, baolu.lu, robin.murphy
  Cc: linux-kernel, iommu, linuxarm, thunder.leizhen, chenxiang66, John Garry

This is a reboot of Zhen Lei's series from a couple of years ago, which
never made it across the line.

I still think that it has some value, so taking up the mantle.

Motivation:
Allow lazy mode be default mode for DMA domains for all ARCHs, and not
only those who hardcode it (to be lazy). For ARM64, currently we must use
a kernel command line parameter to use lazy mode, which is less than
ideal.

Differences to v9:
https://lore.kernel.org/linux-iommu/20190613084240.16768-1-thunder.leizhen@huawei.com/#t
- Rebase to v5.13-rc2
- Remove CONFIG_IOMMU_DEFAULT_PASSTHROUGH from choice:
  Since we can dynamically change default domain of group, lazy or strict and
  passthrough are not mutually exclusive
- Drop ia64 patch, which I don't think was ever required
- Drop "x86/dma: use IS_ENABLED() to simplify the code", which is no
  longer required
- Drop s390/pci patch, as this arch does not use CONFIG_IOMMU_API or even
  already honour CONFIG_IOMMU_DEFAULT_PASSTHROUGH
  https://lore.kernel.org/linux-iommu/20190613084240.16768-4-thunder.leizhen@huawei.com/
- Drop powernv/iommu patch, as I no longer think that it is relevant
  https://lore.kernel.org/linux-iommu/20190613084240.16768-5-thunder.leizhen@huawei.com/
- Some tidying

Zhen Lei (3):
  iommu: Enhance IOMMU default DMA mode build options
  iommu/vt-d: Add support for IOMMU default DMA mode build options
  iommu/amd: Add support for IOMMU default DMA mode build options

 drivers/iommu/Kconfig       | 35 +++++++++++++++++++++++++++++++++++
 drivers/iommu/amd/init.c    |  3 ++-
 drivers/iommu/intel/iommu.c |  2 +-
 drivers/iommu/iommu.c       |  3 ++-
 4 files changed, 40 insertions(+), 3 deletions(-)

-- 
2.26.2


^ permalink raw reply	[flat|nested] 16+ messages in thread

end of thread, other threads:[~2021-06-04  8:20 UTC | newest]

Thread overview: 16+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2021-06-03 13:58 [PATCH v10 0/3] Enhance IOMMU default DMA mode build options John Garry
2021-06-03 13:58 ` John Garry
2021-06-03 13:58 ` [PATCH v10 1/3] iommu: " John Garry
2021-06-03 13:58   ` John Garry
2021-06-03 17:00   ` Randy Dunlap
2021-06-03 17:00     ` Randy Dunlap
2021-06-03 17:04     ` John Garry
2021-06-03 17:04       ` John Garry
2021-06-04  2:54   ` Leizhen (ThunderTown)
2021-06-04  2:54     ` Leizhen (ThunderTown)
2021-06-04  8:19     ` John Garry
2021-06-04  8:19       ` John Garry
2021-06-03 13:58 ` [PATCH v10 2/3] iommu/vt-d: Add support for " John Garry
2021-06-03 13:58   ` John Garry
2021-06-03 13:58 ` [PATCH v10 3/3] iommu/amd: " John Garry
2021-06-03 13:58   ` John Garry

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