From patchwork Tue Aug 9 16:31:46 2011 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Alexander Graf X-Patchwork-Id: 1050292 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by demeter1.kernel.org (8.14.4/8.14.4) with ESMTP id p79GVwJb032405 for ; Tue, 9 Aug 2011 16:32:08 GMT Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754003Ab1HIQb4 (ORCPT ); Tue, 9 Aug 2011 12:31:56 -0400 Received: from cantor2.suse.de ([195.135.220.15]:36119 "EHLO mx2.suse.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753953Ab1HIQbx (ORCPT ); Tue, 9 Aug 2011 12:31:53 -0400 Received: from relay1.suse.de (charybdis-ext.suse.de [195.135.221.2]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by mx2.suse.de (Postfix) with ESMTP id 611A18C5DF; Tue, 9 Aug 2011 18:31:51 +0200 (CEST) From: Alexander Graf To: kvm-ppc@vger.kernel.org Cc: linuxppc-dev@ozlabs.org, kvm@vger.kernel.org, paulus@samba.org Subject: [PATCH 08/10] KVM: PPC: Stub emulate CFAR and PURR SPRs Date: Tue, 9 Aug 2011 18:31:46 +0200 Message-Id: <1312907508-14599-9-git-send-email-agraf@suse.de> X-Mailer: git-send-email 1.7.3.4 In-Reply-To: <1312907508-14599-1-git-send-email-agraf@suse.de> References: <1312907508-14599-1-git-send-email-agraf@suse.de> Sender: kvm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org X-Greylist: IP, sender and recipient auto-whitelisted, not delayed by milter-greylist-4.2.6 (demeter1.kernel.org [140.211.167.41]); Tue, 09 Aug 2011 16:32:09 +0000 (UTC) Recent Linux versions use the CFAR and PURR SPRs, but don't really care about their contents (yet). So for now, we can simply return 0 when the guest wants to read them. Signed-off-by: Alexander Graf --- arch/powerpc/kvm/book3s_emulate.c | 4 ++++ 1 files changed, 4 insertions(+), 0 deletions(-) diff --git a/arch/powerpc/kvm/book3s_emulate.c b/arch/powerpc/kvm/book3s_emulate.c index bf0ddcd..0c9dc62 100644 --- a/arch/powerpc/kvm/book3s_emulate.c +++ b/arch/powerpc/kvm/book3s_emulate.c @@ -473,6 +473,10 @@ int kvmppc_core_emulate_mfspr(struct kvm_vcpu *vcpu, int sprn, int rt) case SPRN_HID5: kvmppc_set_gpr(vcpu, rt, to_book3s(vcpu)->hid[5]); break; + case SPRN_CFAR: + case SPRN_PURR: + kvmppc_set_gpr(vcpu, rt, 0); + break; case SPRN_GQR0: case SPRN_GQR1: case SPRN_GQR2: