From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755540AbYLIUeE (ORCPT ); Tue, 9 Dec 2008 15:34:04 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1755446AbYLIUYN (ORCPT ); Tue, 9 Dec 2008 15:24:13 -0500 Received: from mx2.redhat.com ([66.187.237.31]:34886 "EHLO mx2.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754903AbYLIUXM (ORCPT ); Tue, 9 Dec 2008 15:23:12 -0500 From: Avi Kivity To: kvm@vger.kernel.org Cc: linux-kernel@vger.kernel.org, Sheng Yang Subject: [PATCH 35/44] KVM: Move ack notifier register and IRQ sourcd ID request Date: Tue, 9 Dec 2008 22:22:50 +0200 Message-Id: <1228854179-23002-36-git-send-email-avi@redhat.com> In-Reply-To: <1228854179-23002-1-git-send-email-avi@redhat.com> References: <1228854179-23002-1-git-send-email-avi@redhat.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Sheng Yang Distinguish common part for device assignment and INTx part, perparing for refactor later. Signed-off-by: Sheng Yang Signed-off-by: Avi Kivity --- virt/kvm/kvm_main.c | 30 +++++++++++++++++++----------- 1 files changed, 19 insertions(+), 11 deletions(-) diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c index 4727c08..8966fd1 100644 --- a/virt/kvm/kvm_main.c +++ b/virt/kvm/kvm_main.c @@ -192,16 +192,31 @@ static int kvm_vm_ioctl_assign_irq(struct kvm *kvm, return -EINVAL; } - if (match->irq_requested) { + if (!match->irq_requested) { + INIT_WORK(&match->interrupt_work, + kvm_assigned_dev_interrupt_work_handler); + if (irqchip_in_kernel(kvm)) { + /* Register ack nofitier */ + match->ack_notifier.gsi = -1; + match->ack_notifier.irq_acked = + kvm_assigned_dev_ack_irq; + kvm_register_irq_ack_notifier(kvm, + &match->ack_notifier); + + /* Request IRQ source ID */ + r = kvm_request_irq_source_id(kvm); + if (r < 0) + goto out_release; + else + match->irq_source_id = r; + } + } else { match->guest_irq = assigned_irq->guest_irq; match->ack_notifier.gsi = assigned_irq->guest_irq; mutex_unlock(&kvm->lock); return 0; } - INIT_WORK(&match->interrupt_work, - kvm_assigned_dev_interrupt_work_handler); - if (irqchip_in_kernel(kvm)) { if (!capable(CAP_SYS_RAWIO)) { r = -EPERM; @@ -214,13 +229,6 @@ static int kvm_vm_ioctl_assign_irq(struct kvm *kvm, match->host_irq = match->dev->irq; match->guest_irq = assigned_irq->guest_irq; match->ack_notifier.gsi = assigned_irq->guest_irq; - match->ack_notifier.irq_acked = kvm_assigned_dev_ack_irq; - kvm_register_irq_ack_notifier(kvm, &match->ack_notifier); - r = kvm_request_irq_source_id(kvm); - if (r < 0) - goto out_release; - else - match->irq_source_id = r; /* Even though this is PCI, we don't want to use shared * interrupts. Sharing host devices with guest-assigned devices -- 1.6.0.3