From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751958AbcGLUKU (ORCPT ); Tue, 12 Jul 2016 16:10:20 -0400 Received: from mx1.redhat.com ([209.132.183.28]:44220 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751054AbcGLUKR (ORCPT ); Tue, 12 Jul 2016 16:10:17 -0400 From: =?UTF-8?q?Radim=20Kr=C4=8Dm=C3=A1=C5=99?= To: linux-kernel@vger.kernel.org, kvm@vger.kernel.org Cc: Paolo Bonzini , "Lan, Tianyu" , Igor Mammedov , Jan Kiszka , Peter Xu , Yang Zhang Subject: [PATCH v3 08/14] KVM: VMX: optimize APIC ID read with APICv Date: Tue, 12 Jul 2016 22:09:24 +0200 Message-Id: <20160712200930.32143-9-rkrcmar@redhat.com> In-Reply-To: <20160712200930.32143-1-rkrcmar@redhat.com> References: <20160712200930.32143-1-rkrcmar@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.32]); Tue, 12 Jul 2016 20:10:12 +0000 (UTC) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org The register is in hardware-compatible format now, so there is not need to intercept. Reviewed-by: Paolo Bonzini Signed-off-by: Radim Krčmář --- arch/x86/kvm/vmx.c | 3 --- 1 file changed, 3 deletions(-) diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c index e51503063181..24b505fda7ad 100644 --- a/arch/x86/kvm/vmx.c +++ b/arch/x86/kvm/vmx.c @@ -6456,9 +6456,6 @@ static __init int hardware_setup(void) for (msr = 0x800; msr <= 0x8ff; msr++) vmx_disable_intercept_msr_read_x2apic(msr); - /* According SDM, in x2apic mode, the whole id reg is used. But in - * KVM, it only use the highest eight bits. Need to intercept it */ - vmx_enable_intercept_msr_read_x2apic(0x802); /* TMCCT */ vmx_enable_intercept_msr_read_x2apic(0x839); /* TPR */ -- 2.9.0