From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1761280AbYBGMvU (ORCPT ); Thu, 7 Feb 2008 07:51:20 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1758835AbYBGMsy (ORCPT ); Thu, 7 Feb 2008 07:48:54 -0500 Received: from outbound-va3.frontbridge.com ([216.32.180.16]:41181 "EHLO outbound5-va3-R.bigfish.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1758807AbYBGMsi (ORCPT ); Thu, 7 Feb 2008 07:48:38 -0500 X-BigFish: VP X-MS-Exchange-Organization-Antispam-Report: OrigIP: 139.95.251.8;Service: EHS X-Server-Uuid: 9D002D81-0D89-4A8A-BDDE-D174997CF0D6 From: "Joerg Roedel" To: "Avi Kivity" cc: kvm-devel@lists.sourceforge.net, linux-kernel@vger.kernel.org, "Joerg Roedel" Subject: [PATCH 1/8] SVM: move feature detection to hardware setup code Date: Thu, 7 Feb 2008 13:47:38 +0100 Message-ID: <1202388465-8657-2-git-send-email-joerg.roedel@amd.com> X-Mailer: git-send-email 1.5.3.7 In-Reply-To: <1202388465-8657-1-git-send-email-joerg.roedel@amd.com> References: <1202388465-8657-1-git-send-email-joerg.roedel@amd.com> X-OriginalArrivalTime: 07 Feb 2008 12:47:45.0642 (UTC) FILETIME=[A302A4A0:01C86987] MIME-Version: 1.0 X-WSS-ID: 6BB421940QK10781164-02-01 Content-Type: text/plain Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org By moving the SVM feature detection from the each_cpu code to the hardware setup code it runs only once. As an additional advance the feature check is now available earlier in the module setup process. Signed-off-by: Joerg Roedel --- arch/x86/kvm/svm.c | 4 +++- 1 files changed, 3 insertions(+), 1 deletions(-) diff --git a/arch/x86/kvm/svm.c b/arch/x86/kvm/svm.c index d1c7fcb..c0aaa85 100644 --- a/arch/x86/kvm/svm.c +++ b/arch/x86/kvm/svm.c @@ -302,7 +302,6 @@ static void svm_hardware_enable(void *garbage) svm_data->asid_generation = 1; svm_data->max_asid = cpuid_ebx(SVM_CPUID_FUNC) - 1; svm_data->next_asid = svm_data->max_asid + 1; - svm_features = cpuid_edx(SVM_CPUID_FUNC); asm volatile ("sgdt %0" : "=m"(gdt_descr)); gdt = (struct desc_struct *)gdt_descr.address; @@ -408,6 +407,9 @@ static __init int svm_hardware_setup(void) if (r) goto err_2; } + + svm_features = cpuid_edx(SVM_CPUID_FUNC); + return 0; err_2: -- 1.5.3.7