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| author | Alexey Kardashevskiy <aik@ozlabs.ru> | 2017-03-22 07:21:52 +0300 |
|---|---|---|
| committer | Paul Mackerras <paulus@ozlabs.org> | 2017-04-20 04:39:07 +0300 |
| commit | e91aa8e6ecd5e8193df6dec109f9d5deda5c7317 (patch) | |
| tree | 90cc29115ef8a33d6d7451604750e68a2bbbd0f2 /arch/powerpc/kvm/Kconfig | |
| parent | 4898d3f49b5b156c33f0ae0f49ede417ab86195e (diff) | |
| download | linux-e91aa8e6ecd5e8193df6dec109f9d5deda5c7317.tar.xz | |
KVM: PPC: Enable IOMMU_API for KVM_BOOK3S_64 permanently
It does not make much sense to have KVM in book3s-64 and
not to have IOMMU bits for PCI pass through support as it costs little
and allows VFIO to function on book3s KVM.
Having IOMMU_API always enabled makes it unnecessary to have a lot of
"#ifdef IOMMU_API" in arch/powerpc/kvm/book3s_64_vio*. With those
ifdef's we could have only user space emulated devices accelerated
(but not VFIO) which do not seem to be very useful.
Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Paul Mackerras <paulus@ozlabs.org>
Diffstat (limited to 'arch/powerpc/kvm/Kconfig')
| -rw-r--r-- | arch/powerpc/kvm/Kconfig | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/powerpc/kvm/Kconfig b/arch/powerpc/kvm/Kconfig index 029be26b5a17..65a471de96de 100644 --- a/arch/powerpc/kvm/Kconfig +++ b/arch/powerpc/kvm/Kconfig @@ -67,6 +67,7 @@ config KVM_BOOK3S_64 select KVM_BOOK3S_64_HANDLER select KVM select KVM_BOOK3S_PR_POSSIBLE if !KVM_BOOK3S_HV_POSSIBLE + select SPAPR_TCE_IOMMU if IOMMU_SUPPORT ---help--- Support running unmodified book3s_64 and book3s_32 guest kernels in virtual machines on book3s_64 host processors. |