From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:35095) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1ZSiHF-0003UM-PB for qemu-devel@nongnu.org; Fri, 21 Aug 2015 05:06:22 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1ZSiHC-0002S4-JR for qemu-devel@nongnu.org; Fri, 21 Aug 2015 05:06:21 -0400 Received: from mx1.redhat.com ([209.132.183.28]:52232) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1ZSiHA-0002QZ-6v for qemu-devel@nongnu.org; Fri, 21 Aug 2015 05:06:18 -0400 Received: from int-mx11.intmail.prod.int.phx2.redhat.com (int-mx11.intmail.prod.int.phx2.redhat.com [10.5.11.24]) by mx1.redhat.com (Postfix) with ESMTPS id E5A288E746 for ; Fri, 21 Aug 2015 09:06:15 +0000 (UTC) From: Jason Wang Date: Fri, 21 Aug 2015 17:05:50 +0800 Message-Id: <1440147950-1178-7-git-send-email-jasowang@redhat.com> In-Reply-To: <1440147950-1178-1-git-send-email-jasowang@redhat.com> References: <1440147950-1178-1-git-send-email-jasowang@redhat.com> Subject: [Qemu-devel] [PATCH 6/6] virtio-pci: unbreak queue_enable read List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org, mst@redhat.com Cc: Jason Wang Guest always get zero when reading queue_enable. This violates spec. Fixing this by setting the queue_enable to true during any guest writing and setting it to zero during reset. Cc: Michael S. Tsirkin Signed-off-by: Jason Wang --- hw/virtio/virtio-pci.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/hw/virtio/virtio-pci.c b/hw/virtio/virtio-pci.c index e399565..6cb51de 100644 --- a/hw/virtio/virtio-pci.c +++ b/hw/virtio/virtio-pci.c @@ -1312,6 +1312,7 @@ static void virtio_pci_common_write(void *opaque, hwaddr addr, proxy->vqs[vdev->queue_sel].avail[0], ((uint64_t)proxy->vqs[vdev->queue_sel].used[1]) << 32 | proxy->vqs[vdev->queue_sel].used[0]); + proxy->vqs[vdev->queue_sel].enabled = 1; break; case VIRTIO_PCI_COMMON_Q_DESCLO: proxy->vqs[vdev->queue_sel].desc[0] = val; @@ -1756,9 +1757,15 @@ static void virtio_pci_reset(DeviceState *qdev) { VirtIOPCIProxy *proxy = VIRTIO_PCI(qdev); VirtioBusState *bus = VIRTIO_BUS(&proxy->bus); + int i; + virtio_pci_stop_ioeventfd(proxy); virtio_bus_reset(bus); msix_unuse_all_vectors(&proxy->pci_dev); + + for (i = 0; i < VIRTIO_QUEUE_MAX; i++) { + proxy->vqs[i].enabled = 0; + } } static Property virtio_pci_properties[] = { -- 2.1.4