Commit e91aa8e6 authored Mar 22, 2017 by Alexey Kardashevskiy Committed by Paul Mackerras Apr 20, 2017

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>

parent 4898d3f4

arch/powerpc/kvm/Kconfig

+1 −0

Original line number	Diff line number	Diff line
		@@ -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.

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