From patchwork Thu Aug 1 04:44:28 2013 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Alexey Kardashevskiy X-Patchwork-Id: 263898 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 B1CE32C018B for ; Thu, 1 Aug 2013 14:46:06 +1000 (EST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753383Ab3HAEpZ (ORCPT ); Thu, 1 Aug 2013 00:45:25 -0400 Received: from mail-pb0-f47.google.com ([209.85.160.47]:64077 "EHLO mail-pb0-f47.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753663Ab3HAEpW (ORCPT ); Thu, 1 Aug 2013 00:45:22 -0400 Received: by mail-pb0-f47.google.com with SMTP id rr4so376837pbb.34 for ; Wed, 31 Jul 2013 21:45:22 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20120113; h=from:to:cc:subject:date:message-id:x-mailer:in-reply-to:references :x-gm-message-state; bh=+2mncVuiP/Buz+ayfGD9tBPEa4lcwojiACmB5VeyvEs=; b=L2IcE3wv9tCwMw4X8d5J44fpAgnWAdJ2ZeODx89GdNp7mJJze01dErRsRqu7ErJpGA zo9TdOaCPmz3cBXRHg7MPQ9id7hK2rJ/+qGmYtyX9rKVRsGcOyR42+Hv+abkJIKfcF+e xwljkP8Wx0uw7UYPchemiSY946ybFkCE/FQbzyGL4RpTnFiUSJoM8dlUUUms5rhiedgD Hzn3gSy7enLI9+SDn17NxXa1KdKnMXqMoSkFoo0DpZfRAh2CKDI7gsNXy4IW5XTAHlEy k+yAing12KaMXTcPLwjtVMnNsa6pGnaiN3nGXa5GGyIGFXFP0S1eKWiiYnYRNyWEjXAp c0Pg== X-Received: by 10.68.162.36 with SMTP id xx4mr38688539pbb.47.1375332322427; Wed, 31 Jul 2013 21:45:22 -0700 (PDT) Received: from ka1.ozlabs.ibm.com (ibmaus65.lnk.telstra.net. [165.228.126.9]) by mx.google.com with ESMTPSA id pu5sm266611pac.21.2013.07.31.21.45.17 for (version=TLSv1.2 cipher=ECDHE-RSA-RC4-SHA bits=128/128); Wed, 31 Jul 2013 21:45:20 -0700 (PDT) From: Alexey Kardashevskiy To: linuxppc-dev@lists.ozlabs.org Cc: Alexey Kardashevskiy , Benjamin Herrenschmidt , Paul Mackerras , Alexander Graf , 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 Message-Id: <1375332272-22176-7-git-send-email-aik@ozlabs.ru> X-Mailer: git-send-email 1.8.3.2 In-Reply-To: <1375332272-22176-1-git-send-email-aik@ozlabs.ru> References: <1375332272-22176-1-git-send-email-aik@ozlabs.ru> X-Gm-Message-State: ALoCoQmZmuU0ggXlY30digq6Yq8O0+LGjT92I97lUUkUYVZ2x+xkaao4ZGS4sCNgpQNvdcJoYEVE 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.