From mboxrd@z Thu Jan 1 00:00:00 1970 From: Sheng Yang Subject: [PATCH 14/16] kvm: fix irq 0 assignment Date: Thu, 12 Mar 2009 21:36:57 +0800 Message-ID: <1236865019-30321-15-git-send-email-sheng@linux.intel.com> References: <1236865019-30321-1-git-send-email-sheng@linux.intel.com> Cc: kvm@vger.kernel.org, Sheng Yang To: Avi Kivity , Marcelo Tosatti , Anthony Liguori Return-path: Received: from mga02.intel.com ([134.134.136.20]:36451 "EHLO mga02.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756574AbZCLNhG (ORCPT ); Thu, 12 Mar 2009 09:37:06 -0400 In-Reply-To: <1236865019-30321-1-git-send-email-sheng@linux.intel.com> Sender: kvm-owner@vger.kernel.org List-ID: Shouldn't update assigned irq if host irq is 0, which means uninitialized or don't support INTx. Signed-off-by: Sheng Yang --- qemu/hw/device-assignment.c | 4 ++++ 1 files changed, 4 insertions(+), 0 deletions(-) diff --git a/qemu/hw/device-assignment.c b/qemu/hw/device-assignment.c index 1cd4cf7..69f8e3a 100644 --- a/qemu/hw/device-assignment.c +++ b/qemu/hw/device-assignment.c @@ -590,6 +590,10 @@ static int assign_irq(AssignedDevInfo *adev) AssignedDevice *dev = adev->assigned_dev; int irq, r = 0; + /* IRQ PIN 0 means not use INTx */ + if (pci_read_byte(dev->pdev, PCI_INTERRUPT_PIN) == 0) + return 0; + irq = pci_map_irq(&dev->dev, dev->intpin); irq = piix_get_irq(irq); -- 1.5.4.5