From patchwork Wed Aug 28 08:37:44 2013 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Alexey Kardashevskiy X-Patchwork-Id: 270397 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 20F722C088C for ; Wed, 28 Aug 2013 18:41:57 +1000 (EST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755260Ab3H1Ila (ORCPT ); Wed, 28 Aug 2013 04:41:30 -0400 Received: from mail-pa0-f54.google.com ([209.85.220.54]:36418 "EHLO mail-pa0-f54.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754877Ab3H1Iii (ORCPT ); Wed, 28 Aug 2013 04:38:38 -0400 Received: by mail-pa0-f54.google.com with SMTP id kx10so5979740pab.13 for ; Wed, 28 Aug 2013 01:38:37 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20120113; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references; bh=qPpdX4Gf04kEayxNfgEbwX8c3J2YiDHGsHnJnR8qR7E=; b=NBCOwqECgTugOKMA3XL7/N/WCUwv4B1S7aVrNtUPXf68PT/qlxtPq9xNAdaGXI0lgn YBQJJiqHYt37j7+wre39LoHW1h5RCDV28zlBR7kU8TopZehfZM6BsqAswoP7q0oRKiGe TNRNQAjR99+2WgHI0Lt+gM5jwsstAb1Xu0Z0btrpNxUYYd5sDmA2uSvEtaUg4mZ+TwVi 8/xy6cz0T5iGCSxSJnVcP70o5Jk1L1qV88YXzeLvX7A5sUkv5hSCBaP/VB/gmI0m9PL6 f7X20RMvfPR2mhWGuyYb20f2NSEKxceh/YNfFmXku/5cV1UGw8oWZLfdeo9eQZXhhHlH VkzQ== X-Gm-Message-State: ALoCoQlfjtzk9e2SkBBIbsvv0Etz1UVfo1Us4ehO3Q0Wu4y2UhGrYXN3re3l0xpHM+5sU8xcSv/Z X-Received: by 10.66.122.40 with SMTP id lp8mr25013033pab.82.1377679117680; Wed, 28 Aug 2013 01:38:37 -0700 (PDT) Received: from ka1.ozlabs.ibm.com (ibmaus65.lnk.telstra.net. [165.228.126.9]) by mx.google.com with ESMTPSA id sb9sm20279902pbb.0.1969.12.31.16.00.00 (version=TLSv1.2 cipher=ECDHE-RSA-RC4-SHA bits=128/128); Wed, 28 Aug 2013 01:38:36 -0700 (PDT) From: Alexey Kardashevskiy 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 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> X-Mailer: git-send-email 1.8.4.rc4 In-Reply-To: <1377679070-3515-1-git-send-email-aik@ozlabs.ru> References: <1377679070-3515-1-git-send-email-aik@ozlabs.ru> Sender: kvm-ppc-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: kvm-ppc@vger.kernel.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.