From patchwork Mon Jun 3 20:54:28 2013 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Mihai Caraman X-Patchwork-Id: 248421 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 8F8282C0333 for ; Tue, 4 Jun 2013 06:54:49 +1000 (EST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1758487Ab3FCUyq (ORCPT ); Mon, 3 Jun 2013 16:54:46 -0400 Received: from ch1ehsobe001.messaging.microsoft.com ([216.32.181.181]:13875 "EHLO ch1outboundpool.messaging.microsoft.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1758460Ab3FCUyo (ORCPT ); Mon, 3 Jun 2013 16:54:44 -0400 Received: from mail149-ch1-R.bigfish.com (10.43.68.226) by CH1EHSOBE010.bigfish.com (10.43.70.60) with Microsoft SMTP Server id 14.1.225.23; Mon, 3 Jun 2013 20:54:43 +0000 Received: from mail149-ch1 (localhost [127.0.0.1]) by mail149-ch1-R.bigfish.com (Postfix) with ESMTP id 3B23B38006D; Mon, 3 Jun 2013 20:54:43 +0000 (UTC) X-Forefront-Antispam-Report: CIP:70.37.183.190; KIP:(null); UIP:(null); IPV:NLI; H:mail.freescale.net; RD:none; EFVD:NLI X-SpamScore: 4 X-BigFish: VS4(zcb8k551bizzz1f42h1ee6h1de0h1fdah1202h1e76h1d1ah1d2ah1fc6hzz8275bhz2dh2a8h668h839hd24he5bhf0ah1288h12a5h12a9h12bdh12e5h137ah139eh13b6h1441h1504h1537h162dh1631h1758h1898h18e1h1946h19b5h1ad9h1b0ah1d0ch1d2eh1d3fh1dfeh1dffh1155h) Received: from mail149-ch1 (localhost.localdomain [127.0.0.1]) by mail149-ch1 (MessageSwitch) id 137029288292900_7989; Mon, 3 Jun 2013 20:54:42 +0000 (UTC) Received: from CH1EHSMHS034.bigfish.com (snatpool1.int.messaging.microsoft.com [10.43.68.251]) by mail149-ch1.bigfish.com (Postfix) with ESMTP id 1052E2004C; Mon, 3 Jun 2013 20:54:42 +0000 (UTC) Received: from mail.freescale.net (70.37.183.190) by CH1EHSMHS034.bigfish.com (10.43.70.34) with Microsoft SMTP Server (TLS) id 14.1.225.23; Mon, 3 Jun 2013 20:54:40 +0000 Received: from az84smr01.freescale.net (10.64.34.197) by 039-SN1MMR1-001.039d.mgd.msft.net (10.84.1.13) with Microsoft SMTP Server (TLS) id 14.2.328.11; Mon, 3 Jun 2013 20:55:50 +0000 Received: from mcaraman-VirtualBox.ea.freescale.net (mcaraman-VirtualBox.ea.freescale.net [10.171.73.14]) by az84smr01.freescale.net (8.14.3/8.14.0) with ESMTP id r53KsSWs030131; Mon, 3 Jun 2013 13:54:38 -0700 From: Mihai Caraman To: CC: , , Mihai Caraman Subject: [RFC PATCH 6/6] KVM: PPC: Book3E: Enhance FPU laziness Date: Mon, 3 Jun 2013 23:54:28 +0300 Message-ID: <1370292868-2697-7-git-send-email-mihai.caraman@freescale.com> X-Mailer: git-send-email 1.7.4.1 In-Reply-To: <1370292868-2697-1-git-send-email-mihai.caraman@freescale.com> References: <1370292868-2697-1-git-send-email-mihai.caraman@freescale.com> MIME-Version: 1.0 X-OriginatorOrg: freescale.com Sender: kvm-ppc-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: kvm-ppc@vger.kernel.org Adopt AltiVec approach to increase laziness by calling kvmppc_load_guest_fp() just before returning to guest instaed of each sched in. Signed-off-by: Mihai Caraman --- arch/powerpc/kvm/booke.c | 1 + arch/powerpc/kvm/e500mc.c | 2 -- 2 files changed, 1 insertions(+), 2 deletions(-) diff --git a/arch/powerpc/kvm/booke.c b/arch/powerpc/kvm/booke.c index 019496d..5382238 100644 --- a/arch/powerpc/kvm/booke.c +++ b/arch/powerpc/kvm/booke.c @@ -1258,6 +1258,7 @@ int kvmppc_handle_exit(struct kvm_run *run, struct kvm_vcpu *vcpu, } else { kvmppc_lazy_ee_enable(); kvmppc_load_guest_altivec(vcpu); + kvmppc_load_guest_fp(vcpu); } } diff --git a/arch/powerpc/kvm/e500mc.c b/arch/powerpc/kvm/e500mc.c index 9d7f38e..29cf97a 100644 --- a/arch/powerpc/kvm/e500mc.c +++ b/arch/powerpc/kvm/e500mc.c @@ -138,8 +138,6 @@ void kvmppc_core_vcpu_load(struct kvm_vcpu *vcpu, int cpu) if (vcpu->arch.oldpir != mfspr(SPRN_PIR)) kvmppc_e500_tlbil_all(vcpu_e500); - - kvmppc_load_guest_fp(vcpu); } void kvmppc_core_vcpu_put(struct kvm_vcpu *vcpu)