From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1758474AbZEXPxF (ORCPT ); Sun, 24 May 2009 11:53:05 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1757268AbZEXPvH (ORCPT ); Sun, 24 May 2009 11:51:07 -0400 Received: from mx2.redhat.com ([66.187.237.31]:41861 "EHLO mx2.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755176AbZEXPuf (ORCPT ); Sun, 24 May 2009 11:50:35 -0400 From: Avi Kivity To: linux-kernel@vger.kernel.org Cc: kvm@vger.kernel.org Subject: [PATCH 43/45] KVM: Do not migrate pending software interrupts. Date: Sun, 24 May 2009 18:50:28 +0300 Message-Id: <1243180230-2480-44-git-send-email-avi@redhat.com> In-Reply-To: <1243180230-2480-1-git-send-email-avi@redhat.com> References: <1243180230-2480-1-git-send-email-avi@redhat.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Gleb Natapov INTn will be re-executed after migration. If we wanted to migrate pending software interrupt we would need to migrate interrupt type and instruction length too, but we do not have all required info on SVM, so SVM->VMX migration would need to re-execute INTn anyway. To make it simple never migrate pending soft interrupt. Signed-off-by: Gleb Natapov Signed-off-by: Avi Kivity --- arch/x86/kvm/x86.c | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-) diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c index efba9bc..7037afa 100644 --- a/arch/x86/kvm/x86.c +++ b/arch/x86/kvm/x86.c @@ -3575,7 +3575,7 @@ int kvm_arch_vcpu_ioctl_get_sregs(struct kvm_vcpu *vcpu, memset(sregs->interrupt_bitmap, 0, sizeof sregs->interrupt_bitmap); - if (vcpu->arch.interrupt.pending) + if (vcpu->arch.interrupt.pending && !vcpu->arch.interrupt.soft) set_bit(vcpu->arch.interrupt.nr, (unsigned long *)sregs->interrupt_bitmap); -- 1.6.0.6