This is my current queue of patches to add acceleration of TCE
updates in KVM.
This is based on Linus'es tree sha1 d528ae0d3dfe.
Please comment. Thanks.
Changes:
v10:
* fixed bugs in 10/10
* fixed 04/10 to avoid iommu_table get/put race in 10/10
v9:
* renamed few exported symbols in 04/10
* reforked various objects reference counting in 10/10
v8:
* kept fixing oddities with error handling in 10/10
v7:
* added realmode's WARN_ON_ONCE_RM in arch/powerpc/kvm/book3s_64_vio_hv.c
v6:
* reworked the last patch in terms of error handling and parameters checking
v5:
* replaced "KVM: PPC: Separate TCE validation from update" with
"KVM: PPC: iommu: Unify TCE checking"
* changed already reviewed "powerpc/iommu/vfio_spapr_tce: Cleanup iommu_table disposal"
* reworked "KVM: PPC: VFIO: Add in-kernel acceleration for VFIO"
* more details in individual commit logs
v4:
* addressed comments from v3
* updated subject lines with correct component names
* regrouped the patchset in order:
- powerpc fixes;
- vfio_spapr_tce driver fixes;
- KVM/PPC fixes;
- KVM+PPC+VFIO;
* everything except last 2 patches have "Reviewed-By: David"
v3:
* there was no full repost, only last patch was posted
v2:
* 11/11 reworked to use new notifiers, it is rather RFC as it still has
a issue;
* got 09/11, 10/11 to use notifiers in 11/11;
* added rb: David to most of patches and added a comment in 05/11.
Alexey Kardashevskiy (10):
powerpc/mmu: Add real mode support for IOMMU preregistered memory
powerpc/powernv/iommu: Add real mode version of
iommu_table_ops::exchange()
powerpc/iommu/vfio_spapr_tce: Cleanup iommu_table disposal
powerpc/vfio_spapr_tce: Add reference counting to iommu_table
KVM: PPC: Reserve KVM_CAP_SPAPR_TCE_VFIO capability number
KVM: PPC: Enable IOMMU_API for KVM_BOOK3S_64 permanently
KVM: PPC: Pass kvm* to kvmppc_find_table()
KVM: PPC: Use preregistered memory API to access TCE list
KVM: PPC: iommu: Unify TCE checking
KVM: PPC: VFIO: Add in-kernel acceleration for VFIO
Documentation/virtual/kvm/devices/vfio.txt | 18 +-
arch/powerpc/include/asm/iommu.h | 32 ++-
arch/powerpc/include/asm/kvm_host.h | 8 +
arch/powerpc/include/asm/kvm_ppc.h | 12 +-
arch/powerpc/include/asm/mmu_context.h | 4 +
include/uapi/linux/kvm.h | 7 +
arch/powerpc/kernel/iommu.c | 89 ++++++---
arch/powerpc/kvm/book3s_64_vio.c | 308 ++++++++++++++++++++++++++++-
arch/powerpc/kvm/book3s_64_vio_hv.c | 303 +++++++++++++++++++++++-----
arch/powerpc/kvm/powerpc.c | 2 +
arch/powerpc/mm/mmu_context_iommu.c | 39 ++++
arch/powerpc/platforms/powernv/pci-ioda.c | 46 +++--
arch/powerpc/platforms/powernv/pci.c | 1 +
arch/powerpc/platforms/pseries/iommu.c | 3 +-
arch/powerpc/platforms/pseries/vio.c | 2 +-
drivers/vfio/vfio_iommu_spapr_tce.c | 2 +-
virt/kvm/vfio.c | 104 ++++++++++
arch/powerpc/kvm/Kconfig | 1 +
18 files changed, 874 insertions(+), 107 deletions(-)
--
2.11.0
