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From: Alexey Kardashevskiy <aik@ozlabs.ru>
To: linuxppc-dev@lists.ozlabs.org
Cc: kvm@vger.kernel.org, Gleb Natapov <gleb@redhat.com>,
	Alexey Kardashevskiy <aik@ozlabs.ru>,
	Alexander Graf <agraf@suse.de>,
	kvm-ppc@vger.kernel.org, linux-kernel@vger.kernel.org,
	linux-mm@kvack.org, Paul Mackerras <paulus@samba.org>,
	Paolo Bonzini <pbonzini@redhat.com>,
	David Gibson <david@gibson.dropbear.id.au>
Subject: [PATCH v9 07/13] KVM: PPC: enable IOMMU_API for KVM_BOOK3S_64 permanently
Date: Wed, 28 Aug 2013 18:37:44 +1000	[thread overview]
Message-ID: <1377679070-3515-8-git-send-email-aik@ozlabs.ru> (raw)
In-Reply-To: <1377679070-3515-1-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.
-- 
1.8.4.rc4

  parent reply	other threads:[~2013-08-28  8:38 UTC|newest]

Thread overview: 34+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-08-28  8:37 [PATCH v9 00/13] KVM: PPC: IOMMU in-kernel handling of VFIO Alexey Kardashevskiy
2013-08-28  8:37 ` [PATCH v9 01/13] KVM: PPC: POWERNV: move iommu_add_device earlier Alexey Kardashevskiy
2013-10-30  5:33   ` Bhushan Bharat-R65777
2013-08-28  8:37 ` [PATCH v9 02/13] hashtable: add hash_for_each_possible_rcu_notrace() Alexey Kardashevskiy
2013-08-28  8:37 ` [PATCH v9 03/13] KVM: PPC: reserve a capability number for multitce support Alexey Kardashevskiy
2013-08-28  8:37 ` [PATCH v9 04/13] KVM: PPC: reserve a capability and KVM device type for realmode VFIO Alexey Kardashevskiy
2013-09-01 11:27   ` Gleb Natapov
2013-09-01 11:39     ` Alexey Kardashevskiy
2013-09-01 12:04       ` Gleb Natapov
2013-08-28  8:37 ` [PATCH v9 05/13] powerpc: Prepare to support kernel handling of IOMMU map/unmap Alexey Kardashevskiy
2013-08-28  8:37 ` [PATCH v9 06/13] powerpc: add real mode support for dma operations on powernv Alexey Kardashevskiy
2013-08-28  8:37 ` Alexey Kardashevskiy [this message]
2013-08-28  8:37 ` [PATCH v9 08/13] KVM: PPC: Add support for multiple-TCE hcalls Alexey Kardashevskiy
2013-08-28  8:37 ` [PATCH v9 09/13] powerpc/iommu: rework to support realmode Alexey Kardashevskiy
2013-08-28  8:49 ` [PATCH v9 10/13] KVM: PPC: remove warning from kvmppc_core_destroy_vm Alexey Kardashevskiy
2013-08-28  8:50 ` [PATCH v9 11/13] KVM: PPC: add trampolines for VFIO external API Alexey Kardashevskiy
2013-08-28  8:50 ` [PATCH v9 12/13] KVM: PPC: Add support for IOMMU in-kernel handling Alexey Kardashevskiy
2013-09-01 12:06   ` Gleb Natapov
2013-09-02  3:14     ` Alexey Kardashevskiy
2013-09-03 10:53       ` Gleb Natapov
2013-09-03 16:01         ` Alexey Kardashevskiy
2013-09-05 18:10           ` Gleb Natapov
2013-09-05 23:38             ` Alexey Kardashevskiy
2013-09-06  6:01               ` Gleb Natapov
2013-09-06  6:06                 ` Alexey Kardashevskiy
2013-09-05  4:05         ` Benjamin Herrenschmidt
2013-09-06  6:57           ` Gleb Natapov
2013-09-06  7:04             ` Alexey Kardashevskiy
2013-09-06 10:45             ` Alexey Kardashevskiy
2013-09-06 10:40   ` [PATCH v10 " Alexey Kardashevskiy
2013-09-08 14:12     ` Gleb Natapov
2013-08-28  8:51 ` [PATCH v9 13/13] KVM: PPC: Add hugepage " Alexey Kardashevskiy
2013-08-30 10:26 ` [PATCH v9 00/13] KVM: PPC: IOMMU in-kernel handling of VFIO Alexey Kardashevskiy
2013-08-30 17:58   ` Gleb Natapov

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