From mboxrd@z Thu Jan 1 00:00:00 1970 From: Marcelo Tosatti Subject: [patch 2/2] KVM: SVM: init_vmcb should reset vcpu->efer Date: Tue, 31 Aug 2010 19:13:14 -0300 Message-ID: <20100831221357.800171409@amt.cnet> References: <20100831221312.274804004@amt.cnet> Cc: kvm@vger.kernel.org, Marcelo Tosatti To: avi@redhat.com Return-path: Received: from mx1.redhat.com ([209.132.183.28]:6266 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754872Ab0HaWOt (ORCPT ); Tue, 31 Aug 2010 18:14:49 -0400 Received: from int-mx01.intmail.prod.int.phx2.redhat.com (int-mx01.intmail.prod.int.phx2.redhat.com [10.5.11.11]) by mx1.redhat.com (8.13.8/8.13.8) with ESMTP id o7VMEmuu026455 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK) for ; Tue, 31 Aug 2010 18:14:49 -0400 Content-Disposition: inline; filename=reset-efer Sender: kvm-owner@vger.kernel.org List-ID: Otherwise EFER_LMA bit is retained across a SIPI reset. Fixes guest cpu onlining. Signed-off-by: Marcelo Tosatti Index: kvm/arch/x86/kvm/svm.c =================================================================== --- kvm.orig/arch/x86/kvm/svm.c +++ kvm/arch/x86/kvm/svm.c @@ -816,7 +816,7 @@ static void init_vmcb(struct vcpu_svm *s init_sys_seg(&save->ldtr, SEG_TYPE_LDT); init_sys_seg(&save->tr, SEG_TYPE_BUSY_TSS16); - save->efer = EFER_SVME; + svm_set_efer(&svm->vcpu, 0); save->dr6 = 0xffff0ff0; save->dr7 = 0x400; save->rflags = 2;