From patchwork Thu Feb 16 09:26:01 2012 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Liu Yu-B13201 X-Patchwork-Id: 141540 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 53E3A1013C7 for ; Thu, 16 Feb 2012 20:31:38 +1100 (EST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751214Ab2BPJbe (ORCPT ); Thu, 16 Feb 2012 04:31:34 -0500 Received: from tx2ehsobe001.messaging.microsoft.com ([65.55.88.11]:26496 "EHLO TX2EHSOBE001.bigfish.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752049Ab2BPJb3 (ORCPT ); Thu, 16 Feb 2012 04:31:29 -0500 Received: from mail91-tx2-R.bigfish.com (10.9.14.238) by TX2EHSOBE001.bigfish.com (10.9.40.21) with Microsoft SMTP Server id 14.1.225.23; Thu, 16 Feb 2012 09:31:29 +0000 Received: from mail91-tx2 (localhost [127.0.0.1]) by mail91-tx2-R.bigfish.com (Postfix) with ESMTP id 097D240130; Thu, 16 Feb 2012 09:31:29 +0000 (UTC) X-SpamScore: 0 X-BigFish: VS0(zzzz1202hzz8275bhz2dh2a8h668h839h) X-Forefront-Antispam-Report: CIP:70.37.183.190; KIP:(null); UIP:(null); IPV:NLI; H:mail.freescale.net; RD:none; EFVD:NLI Received: from mail91-tx2 (localhost.localdomain [127.0.0.1]) by mail91-tx2 (MessageSwitch) id 1329384687891921_21995; Thu, 16 Feb 2012 09:31:27 +0000 (UTC) Received: from TX2EHSMHS023.bigfish.com (unknown [10.9.14.239]) by mail91-tx2.bigfish.com (Postfix) with ESMTP id C9E7D3E0045; Thu, 16 Feb 2012 09:31:27 +0000 (UTC) Received: from mail.freescale.net (70.37.183.190) by TX2EHSMHS023.bigfish.com (10.9.99.123) with Microsoft SMTP Server (TLS) id 14.1.225.23; Thu, 16 Feb 2012 09:31:24 +0000 Received: from az84smr01.freescale.net (10.64.34.197) by 039-SN1MMR1-002.039d.mgd.msft.net (10.84.1.15) with Microsoft SMTP Server (TLS) id 14.1.355.3; Thu, 16 Feb 2012 03:30:08 -0600 Received: from localhost (rock.ap.freescale.net [10.193.20.106]) by az84smr01.freescale.net (8.14.3/8.14.0) with ESMTP id q1G9U5cm020160; Thu, 16 Feb 2012 02:30:06 -0700 From: Liu Yu To: , , CC: , , Liu Yu Subject: [PATCH v4 2/3] KVM: PPC: epapr: Add idle hcall support for host Date: Thu, 16 Feb 2012 17:26:01 +0800 Message-ID: <1329384365-4028-2-git-send-email-yu.liu@freescale.com> X-Mailer: git-send-email 1.6.4 In-Reply-To: <1329384365-4028-1-git-send-email-yu.liu@freescale.com> References: <1329384365-4028-1-git-send-email-yu.liu@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 And add a new flag definition in kvm_ppc_pvinfo to indicate whether host support EV_IDLE hcall. Signed-off-by: Liu Yu --- v4: no change arch/powerpc/include/asm/kvm_para.h | 14 ++++++++++++-- arch/powerpc/kvm/powerpc.c | 8 ++++++++ include/linux/kvm.h | 2 ++ 3 files changed, 22 insertions(+), 2 deletions(-) diff --git a/arch/powerpc/include/asm/kvm_para.h b/arch/powerpc/include/asm/kvm_para.h index 7b754e7..81a34c9 100644 --- a/arch/powerpc/include/asm/kvm_para.h +++ b/arch/powerpc/include/asm/kvm_para.h @@ -75,9 +75,19 @@ struct kvm_vcpu_arch_shared { }; #define KVM_SC_MAGIC_R0 0x4b564d21 /* "KVM!" */ -#define HC_VENDOR_KVM (42 << 16) + +#include + +/* ePAPR Hypercall Vendor ID */ +#define HC_VENDOR_EPAPR (EV_EPAPR_VENDOR_ID << 16) +#define HC_VENDOR_KVM (EV_KVM_VENDOR_ID << 16) + +/* ePAPR Hypercall Token */ +#define HC_EV_IDLE EV_IDLE + +/* ePAPR Hypercall Return Codes */ #define HC_EV_SUCCESS 0 -#define HC_EV_UNIMPLEMENTED 12 +#define HC_EV_UNIMPLEMENTED EV_UNIMPLEMENTED #define KVM_FEATURE_MAGIC_PAGE 1 diff --git a/arch/powerpc/kvm/powerpc.c b/arch/powerpc/kvm/powerpc.c index 0e21d15..03ebd5d 100644 --- a/arch/powerpc/kvm/powerpc.c +++ b/arch/powerpc/kvm/powerpc.c @@ -81,6 +81,10 @@ int kvmppc_kvm_pv(struct kvm_vcpu *vcpu) /* Second return value is in r4 */ break; + case HC_VENDOR_EPAPR | HC_EV_IDLE: + r = HC_EV_SUCCESS; + kvm_vcpu_block(vcpu); + break; default: r = HC_EV_UNIMPLEMENTED; break; @@ -746,6 +750,10 @@ static int kvm_vm_ioctl_get_pvinfo(struct kvm_ppc_pvinfo *pvinfo) pvinfo->hcall[2] = inst_sc; pvinfo->hcall[3] = inst_nop; +#ifdef CONFIG_BOOKE + pvinfo->flags |= KVM_PPC_PVINFO_FLAGS_EV_IDLE; +#endif + return 0; } diff --git a/include/linux/kvm.h b/include/linux/kvm.h index acbe429..6b2c70e 100644 --- a/include/linux/kvm.h +++ b/include/linux/kvm.h @@ -449,6 +449,8 @@ struct kvm_ppc_pvinfo { __u8 pad[108]; }; +#define KVM_PPC_PVINFO_FLAGS_EV_IDLE (1<<0) + #define KVMIO 0xAE /* machine type bits, to be used as argument to KVM_CREATE_VM */