From: Alexey Kardashevskiy <aik@ozlabs.ru>
To: linuxppc-dev@lists.ozlabs.org
Cc: Alexey Kardashevskiy <aik@ozlabs.ru>,
Benjamin Herrenschmidt <benh@kernel.crashing.org>,
Paul Mackerras <paulus@samba.org>, Alexander Graf <agraf@suse.de>,
kvm@vger.kernel.org, linux-doc@vger.kernel.org,
linux-kernel@vger.kernel.org, kvm-ppc@vger.kernel.org
Subject: [PATCH 06/10] KVM: PPC: enable IOMMU_API for KVM_BOOK3S_64 permanently
Date: Thu, 1 Aug 2013 14:44:28 +1000 [thread overview]
Message-ID: <1375332272-22176-7-git-send-email-aik@ozlabs.ru> (raw)
In-Reply-To: <1375332272-22176-1-git-send-email-aik@ozlabs.ru>
It does not make much sense to have KVM in book3s-64bit 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>
---
arch/powerpc/kvm/Kconfig | 1 +
1 file changed, 1 insertion(+)
diff --git a/arch/powerpc/kvm/Kconfig b/arch/powerpc/kvm/Kconfig
index c55c538..3b2b761 100644
--- a/arch/powerpc/kvm/Kconfig
+++ b/arch/powerpc/kvm/Kconfig
@@ -59,6 +59,7 @@ config KVM_BOOK3S_64
depends on PPC_BOOK3S_64
select KVM_BOOK3S_64_HANDLER
select KVM
+ select SPAPR_TCE_IOMMU
---help---
Support running unmodified book3s_64 and book3s_32 guest kernels
in virtual machines on book3s_64 host processors.
--
1.8.3.2
next prev parent reply other threads:[~2013-08-01 4:45 UTC|newest]
Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-08-01 4:44 [PATCH 00/10 v7] KVM: PPC: IOMMU in-kernel handling Alexey Kardashevskiy
2013-08-01 4:44 ` [PATCH 01/10] hashtable: add hash_for_each_possible_rcu_notrace() Alexey Kardashevskiy
2013-08-01 4:44 ` [PATCH 02/10] KVM: PPC: reserve a capability number for multitce support Alexey Kardashevskiy
2013-08-14 0:51 ` Benjamin Herrenschmidt
2013-08-26 12:37 ` Gleb Natapov
2013-08-27 4:19 ` Benjamin Herrenschmidt
2013-08-27 4:22 ` Benjamin Herrenschmidt
2013-08-27 6:41 ` Gleb Natapov
2013-08-27 7:35 ` Benjamin Herrenschmidt
2013-08-27 6:40 ` Gleb Natapov
2013-08-27 7:34 ` Benjamin Herrenschmidt
2013-08-01 4:44 ` [PATCH 03/10] KVM: PPC: reserve a capability and ioctl numbers for realmode VFIO Alexey Kardashevskiy
2013-08-15 7:16 ` Alexander Graf
2013-08-15 7:22 ` Alexey Kardashevskiy
2013-08-15 7:24 ` Alexander Graf
2013-08-15 7:25 ` Alexander Graf
2013-08-15 7:42 ` Alexey Kardashevskiy
2013-08-15 7:43 ` Alexander Graf
2013-08-15 7:54 ` Alexey Kardashevskiy
2013-08-15 7:56 ` Alexander Graf
2013-08-01 4:44 ` [PATCH 04/10] powerpc: Prepare to support kernel handling of IOMMU map/unmap Alexey Kardashevskiy
2013-08-01 4:44 ` [PATCH 05/10] powerpc: add real mode support for dma operations on powernv Alexey Kardashevskiy
2013-08-01 4:44 ` Alexey Kardashevskiy [this message]
2013-08-01 4:44 ` [PATCH 07/10] KVM: PPC: Add support for multiple-TCE hcalls Alexey Kardashevskiy
2013-08-01 4:44 ` [PATCH 08/10] powerpc/iommu: rework to support realmode Alexey Kardashevskiy
2013-08-01 4:44 ` [PATCH 09/10] KVM: PPC: Add support for IOMMU in-kernel handling Alexey Kardashevskiy
2013-08-01 4:44 ` [PATCH 10/10] KVM: PPC: Add hugepage " Alexey Kardashevskiy
-- strict thread matches above, loose matches on Subject: below --
2013-07-16 0:53 [PATCH 00/10 v6] KVM: PPC: " Alexey Kardashevskiy
2013-07-16 0:54 ` [PATCH 06/10] KVM: PPC: enable IOMMU_API for KVM_BOOK3S_64 permanently Alexey Kardashevskiy
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