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[kernel,v2,0/4] Enable IOMMU support for pseries Secure VMs

Message ID 20191216041924.42318-1-aik@ozlabs.ru (mailing list archive)
Headers show
Series Enable IOMMU support for pseries Secure VMs | expand

Message

Alexey Kardashevskiy Dec. 16, 2019, 4:19 a.m. UTC 
This enables IOMMU for SVM. Instead of sharing
a H_PUT_TCE_INDIRECT page, this uses H_PUT_TCE for mapping
and H_STUFF_TCE for clearing TCEs which should bring
acceptable performance at the boot time; otherwise things
work with the same speed anyway.

Please comment. Thanks.


This is based on sha1
37d4e84f765b Linus Torvalds Merge tag 'ceph-for-5.5-rc2' of git://github.com/ceph/ceph-client

Please comment. Thanks.



Alexey Kardashevskiy (3):
  powerpc/pseries: Allow not having
    ibm,hypertas-functions::hcall-multi-tce for DDW
  powerpc/pseries/iommu: Separate FW_FEATURE_MULTITCE to put/stuff
    features
  powerpc/pseries/svm: Allow IOMMU to work in SVM

Ram Pai (1):
  Revert "powerpc/pseries/iommu: Don't use dma_iommu_ops on secure
    guests"

 arch/powerpc/include/asm/firmware.h       |  6 ++-
 arch/powerpc/platforms/pseries/firmware.c | 10 +++-
 arch/powerpc/platforms/pseries/iommu.c    | 65 +++++++++++++----------
 3 files changed, 50 insertions(+), 31 deletions(-)