From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from psmtp.com (na3sys010amx198.postini.com [74.125.245.198]) by kanga.kvack.org (Postfix) with SMTP id 66A456B003C for ; Wed, 28 Aug 2013 04:38:38 -0400 (EDT) Received: by mail-pb0-f42.google.com with SMTP id un15so6015393pbc.1 for ; Wed, 28 Aug 2013 01:38:37 -0700 (PDT) From: Alexey Kardashevskiy Subject: [PATCH v9 07/13] KVM: PPC: enable IOMMU_API for KVM_BOOK3S_64 permanently Date: Wed, 28 Aug 2013 18:37:44 +1000 Message-Id: <1377679070-3515-8-git-send-email-aik@ozlabs.ru> In-Reply-To: <1377679070-3515-1-git-send-email-aik@ozlabs.ru> References: <1377679070-3515-1-git-send-email-aik@ozlabs.ru> Sender: owner-linux-mm@kvack.org List-ID: To: linuxppc-dev@lists.ozlabs.org Cc: Alexey Kardashevskiy , David Gibson , Benjamin Herrenschmidt , Paul Mackerras , Gleb Natapov , Paolo Bonzini , Alexander Graf , kvm@vger.kernel.org, linux-kernel@vger.kernel.org, kvm-ppc@vger.kernel.org, linux-mm@kvack.org 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 --- 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 -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org