From patchwork Tue Aug 7 10:57:12 2012 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Alexander Graf X-Patchwork-Id: 175593 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 308812C00A0 for ; Tue, 7 Aug 2012 20:57:44 +1000 (EST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753983Ab2HGK5k (ORCPT ); Tue, 7 Aug 2012 06:57:40 -0400 Received: from cantor2.suse.de ([195.135.220.15]:48079 "EHLO mx2.suse.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753531Ab2HGK5V (ORCPT ); Tue, 7 Aug 2012 06:57:21 -0400 Received: from relay1.suse.de (unknown [195.135.220.254]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by mx2.suse.de (Postfix) with ESMTP id 9069AA3E8F; Tue, 7 Aug 2012 12:57:20 +0200 (CEST) From: Alexander Graf To: kvm-ppc@vger.kernel.org Cc: KVM list , kvmarm@lists.cs.columbia.edu Subject: [PATCH 4/8] KVM: PPC: Expose SYNC cap based on mmu notifiers Date: Tue, 7 Aug 2012 12:57:12 +0200 Message-Id: <1344337036-22244-5-git-send-email-agraf@suse.de> X-Mailer: git-send-email 1.6.0.2 In-Reply-To: <1344337036-22244-1-git-send-email-agraf@suse.de> References: <1344337036-22244-1-git-send-email-agraf@suse.de> Sender: kvm-ppc-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: kvm-ppc@vger.kernel.org Semantically, the "SYNC" cap means that we have mmu notifiers available. Express this in our #ifdef'ery around the feature, so that we can be sure we don't miss out on ppc targets when they get their implementation. Signed-off-by: Alexander Graf --- arch/powerpc/kvm/powerpc.c | 8 +++++++- 1 files changed, 7 insertions(+), 1 deletions(-) diff --git a/arch/powerpc/kvm/powerpc.c b/arch/powerpc/kvm/powerpc.c index a69ca4a..e2511de 100644 --- a/arch/powerpc/kvm/powerpc.c +++ b/arch/powerpc/kvm/powerpc.c @@ -264,10 +264,16 @@ int kvm_dev_ioctl_check_extension(long ext) if (cpu_has_feature(CPU_FTR_ARCH_201)) r = 2; break; +#endif case KVM_CAP_SYNC_MMU: +#ifdef CONFIG_KVM_BOOK3S_64_HV r = cpu_has_feature(CPU_FTR_ARCH_206) ? 1 : 0; - break; +#elif defined(KVM_ARCH_WANT_MMU_NOTIFIER) + r = 1; +#else + r = 0; #endif + break; case KVM_CAP_NR_VCPUS: /* * Recommending a number of CPUs is somewhat arbitrary; we