From: Alexey Kardashevskiy <aik@ozlabs.ru>
To: linuxppc-dev@lists.ozlabs.org
Cc: Alexey Kardashevskiy <aik@ozlabs.ru>,
Paul Mackerras <paulus@samba.org>,
Alex Williamson <alex.williamson@redhat.com>,
David Gibson <david@gibson.dropbear.id.au>,
kvm-ppc@vger.kernel.org, kvm@vger.kernel.org
Subject: [PATCH kernel 0/9] KVM, PPC, VFIO: Enable in-kernel acceleration
Date: Mon, 7 Mar 2016 14:41:08 +1100 [thread overview]
Message-ID: <1457322077-26640-1-git-send-email-aik@ozlabs.ru> (raw)
This enables in-kernel acceleration of H_PUT_TCE/etc hypercalls for pseries
guests using VFIO. As pseries is a para-virtualized environment, the guest
can see and control IOMMUs via special hypercalls which let the guest
to add and remove mappings in real hardware IOMMU.
This was posted last time quite a long time ago so I dropped versions now,
this re-respin is v1. This was successfully used in the PowerKVM product
for quite a while now.
This is based on git://git.kernel.org/pub/scm/virt/kvm/kvm.git , "next"
branch which got "multi-tce in-kernel acceleration" and "64 bit in-kernel
TCE" support.
Please comment. Thanks!
Alexey Kardashevskiy (9):
KVM: PPC: Reserve KVM_CAP_SPAPR_TCE_VFIO capability number
powerpc/mmu: Add real mode support for IOMMU preregistered memory
KVM: PPC: Use preregistered memory API to access TCE list
powerpc/powernv/iommu: Add real mode version of xchg()
KVM: PPC: Enable IOMMU_API for KVM_BOOK3S_64 permanently
KVM: PPC: Associate IOMMU group with guest view of TCE table
KVM: PPC: Create a virtual-mode only TCE table handlers
KVM: PPC: Add in-kernel handling for VFIO
KVM: PPC: VFIO device: support SPAPR TCE
Documentation/virtual/kvm/devices/vfio.txt | 21 +-
arch/powerpc/include/asm/iommu.h | 7 +
arch/powerpc/include/asm/kvm_host.h | 8 +
arch/powerpc/include/asm/kvm_ppc.h | 6 +
arch/powerpc/include/asm/mmu_context.h | 6 +-
arch/powerpc/kernel/iommu.c | 15 ++
arch/powerpc/kvm/Kconfig | 2 +
arch/powerpc/kvm/Makefile | 5 +-
arch/powerpc/kvm/book3s_64_vio.c | 344 +++++++++++++++++++++++++++++
arch/powerpc/kvm/book3s_64_vio_hv.c | 280 +++++++++++++++++++++--
arch/powerpc/kvm/book3s_hv_rmhandlers.S | 4 +-
arch/powerpc/kvm/powerpc.c | 1 +
arch/powerpc/mm/mmu_context_iommu.c | 45 +++-
arch/powerpc/platforms/powernv/pci-ioda.c | 28 ++-
include/uapi/linux/kvm.h | 10 +
virt/kvm/vfio.c | 106 +++++++++
16 files changed, 855 insertions(+), 33 deletions(-)
--
2.5.0.rc3
next reply other threads:[~2016-03-07 3:42 UTC|newest]
Thread overview: 46+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-03-07 3:41 Alexey Kardashevskiy [this message]
2016-03-07 3:41 ` [PATCH kernel 1/9] KVM: PPC: Reserve KVM_CAP_SPAPR_TCE_VFIO capability number Alexey Kardashevskiy
2016-03-07 4:58 ` David Gibson
2016-03-07 3:41 ` [PATCH kernel 2/9] powerpc/mmu: Add real mode support for IOMMU preregistered memory Alexey Kardashevskiy
2016-03-07 5:30 ` David Gibson
2016-03-07 3:41 ` [PATCH kernel 3/9] KVM: PPC: Use preregistered memory API to access TCE list Alexey Kardashevskiy
2016-03-07 6:00 ` David Gibson
2016-03-08 5:47 ` Alexey Kardashevskiy
2016-03-08 6:30 ` David Gibson
2016-03-09 8:55 ` Alexey Kardashevskiy
2016-03-09 23:46 ` David Gibson
2016-03-10 8:33 ` Paul Mackerras
2016-03-10 23:42 ` David Gibson
2016-03-07 3:41 ` [PATCH kernel 4/9] powerpc/powernv/iommu: Add real mode version of xchg() Alexey Kardashevskiy
2016-03-07 6:05 ` David Gibson
2016-03-07 7:32 ` Alexey Kardashevskiy
2016-03-08 4:50 ` David Gibson
2016-03-10 8:43 ` Paul Mackerras
2016-03-10 8:46 ` Paul Mackerras
2016-03-07 3:41 ` [PATCH kernel 5/9] KVM: PPC: Enable IOMMU_API for KVM_BOOK3S_64 permanently Alexey Kardashevskiy
2016-03-07 3:41 ` [PATCH kernel 6/9] KVM: PPC: Associate IOMMU group with guest view of TCE table Alexey Kardashevskiy
2016-03-07 6:25 ` David Gibson
2016-03-07 9:38 ` Alexey Kardashevskiy
2016-03-08 4:55 ` David Gibson
2016-03-07 3:41 ` [PATCH kernel 7/9] KVM: PPC: Create a virtual-mode only TCE table handlers Alexey Kardashevskiy
2016-03-08 6:32 ` David Gibson
2016-03-07 3:41 ` [PATCH kernel 8/9] KVM: PPC: Add in-kernel handling for VFIO Alexey Kardashevskiy
2016-03-08 11:08 ` David Gibson
2016-03-09 8:46 ` Alexey Kardashevskiy
2016-03-10 5:18 ` David Gibson
2016-03-11 2:15 ` Alexey Kardashevskiy
2016-03-15 6:00 ` David Gibson
2016-03-07 3:41 ` [PATCH kernel 9/9] KVM: PPC: VFIO device: support SPAPR TCE Alexey Kardashevskiy
2016-03-09 5:45 ` David Gibson
2016-03-09 9:20 ` Alexey Kardashevskiy
2016-03-10 5:21 ` David Gibson
2016-03-10 23:09 ` Alexey Kardashevskiy
2016-03-15 6:04 ` David Gibson
[not found] ` <15389a41428.27cb.1ca38dd7e845b990cd13d431eb58563d@ozlabs.ru>
[not found] ` <20160321051932.GJ23586@voom.redhat.com>
2016-03-22 0:34 ` Alexey Kardashevskiy
2016-03-23 3:03 ` David Gibson
2016-06-09 6:47 ` Alexey Kardashevskiy
2016-06-10 6:50 ` David Gibson
2016-06-14 3:30 ` Alexey Kardashevskiy
2016-06-15 4:43 ` David Gibson
2016-04-08 9:13 ` Alexey Kardashevskiy
2016-04-11 3:36 ` David Gibson
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