On Fri, Aug 30, 2013 at 08:26:54PM +1000, Alexey Kardashevskiy wrote: > On 08/28/2013 06:37 PM, Alexey Kardashevskiy wrote: > > This accelerates VFIO DMA operations on POWER by moving them > > into kernel. > > > > This depends on VFIO external API patch which is on its way to upstream. > > > > Changes: > > v9: > > * replaced the "link logical bus number to IOMMU group" ioctl to KVM > > with a KVM device doing the same thing, i.e. the actual changes are in > > these 3 patches: > > KVM: PPC: reserve a capability and KVM device type for realmode VFIO > > KVM: PPC: remove warning from kvmppc_core_destroy_vm > > KVM: PPC: Add support for IOMMU in-kernel handling > > > > * moved some VFIO external API bits to a separate patch to reduce the size > > of the "KVM: PPC: Add support for IOMMU in-kernel handling" patch > > > > * fixed code style problems reported by checkpatch.pl. > > > > v8: > > * fixed comments about capabilities numbers > > > > v7: > > * rebased on v3.11-rc3. > > * VFIO external user API will go through VFIO tree so it is > > excluded from this series. > > * As nobody ever reacted on "hashtable: add hash_for_each_possible_rcu_notrace()", > > Ben suggested to push it via his tree so I included it to the series. > > * realmode_(get|put)_page is reworked. > > > > More details in the individual patch comments. > > > > Alexey Kardashevskiy (13): > > KVM: PPC: POWERNV: move iommu_add_device earlier > > hashtable: add hash_for_each_possible_rcu_notrace() > > KVM: PPC: reserve a capability number for multitce support > > KVM: PPC: reserve a capability and KVM device type for realmode VFIO > > > Hi Gleb! > > Could you please review and pick (if they are ok) the two "capability" > patches from above? > > It would be cool if you also looked at "KVM: PPC: Add support for IOMMU > in-kernel handling", the part about KVM device for SPAPR TCE IOMMU table. > > Thanks! Will do it next week. > > > > > powerpc: Prepare to support kernel handling of IOMMU map/unmap > > powerpc: add real mode support for dma operations on powernv > > KVM: PPC: enable IOMMU_API for KVM_BOOK3S_64 permanently > > KVM: PPC: Add support for multiple-TCE hcalls > > powerpc/iommu: rework to support realmode > > KVM: PPC: remove warning from kvmppc_core_destroy_vm > > KVM: PPC: add trampolines for VFIO external API > > KVM: PPC: Add support for IOMMU in-kernel handling > > KVM: PPC: Add hugepage support for IOMMU in-kernel handling > > > > Documentation/virtual/kvm/api.txt | 26 + > > .../virtual/kvm/devices/spapr_tce_iommu.txt | 37 ++ > > arch/powerpc/include/asm/iommu.h | 18 +- > > arch/powerpc/include/asm/kvm_host.h | 38 ++ > > arch/powerpc/include/asm/kvm_ppc.h | 16 +- > > arch/powerpc/include/asm/machdep.h | 12 + > > arch/powerpc/include/asm/pgtable-ppc64.h | 2 + > > arch/powerpc/include/uapi/asm/kvm.h | 8 + > > arch/powerpc/kernel/iommu.c | 243 +++++---- > > arch/powerpc/kvm/Kconfig | 1 + > > arch/powerpc/kvm/book3s_64_vio.c | 597 ++++++++++++++++++++- > > arch/powerpc/kvm/book3s_64_vio_hv.c | 408 +++++++++++++- > > arch/powerpc/kvm/book3s_hv.c | 42 +- > > arch/powerpc/kvm/book3s_hv_rmhandlers.S | 8 +- > > arch/powerpc/kvm/book3s_pr_papr.c | 35 ++ > > arch/powerpc/kvm/powerpc.c | 4 + > > arch/powerpc/mm/init_64.c | 50 +- > > arch/powerpc/platforms/powernv/pci-ioda.c | 57 +- > > arch/powerpc/platforms/powernv/pci-p5ioc2.c | 2 +- > > arch/powerpc/platforms/powernv/pci.c | 75 ++- > > arch/powerpc/platforms/powernv/pci.h | 3 +- > > arch/powerpc/platforms/pseries/iommu.c | 8 +- > > include/linux/hashtable.h | 15 + > > include/linux/kvm_host.h | 1 + > > include/linux/mm.h | 14 + > > include/linux/page-flags.h | 4 +- > > include/uapi/linux/kvm.h | 3 + > > virt/kvm/kvm_main.c | 5 + > > 28 files changed, 1564 insertions(+), 168 deletions(-) > > create mode 100644 Documentation/virtual/kvm/devices/spapr_tce_iommu.txt > > > > > -- > Alexey -- Gleb. -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>