From: Marcelo Tosatti <mtosatti@redhat.com>
To: kvm@vger.kernel.org, qemu-devel@nongnu.org
Cc: avi@redhat.com, Marcelo Tosatti <mtosatti@redhat.com>
Subject: [patch uq/master 1/2] virtio-pci: wake up iothread on VIRTIO_PCI_QUEUE_NOTIFY
Date: Mon, 22 Feb 2010 10:59:07 -0300 [thread overview]
Message-ID: <20100222140209.878250600@amt.cnet> (raw)
In-Reply-To: 20100222135906.347393434@amt.cnet
[-- Attachment #1: virtio-iothread-wake --]
[-- Type: text/plain, Size: 653 bytes --]
VIRTIO_PCI_QUEUE_NOTIFY is used to inform availability of new buffers,
so wakeup the iothread to process that information immediately.
Reported-by: Amit Shah <amit.shah@redhat.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
Index: qemu/hw/virtio-pci.c
===================================================================
--- qemu.orig/hw/virtio-pci.c
+++ qemu/hw/virtio-pci.c
@@ -204,6 +204,7 @@ static void virtio_ioport_write(void *op
break;
case VIRTIO_PCI_QUEUE_NOTIFY:
virtio_queue_notify(vdev, val);
+ qemu_notify_event();
break;
case VIRTIO_PCI_STATUS:
vdev->status = val & 0xFF;
WARNING: multiple messages have this Message-ID (diff)
From: Marcelo Tosatti <mtosatti@redhat.com>
To: kvm@vger.kernel.org, qemu-devel@nongnu.org
Cc: Marcelo Tosatti <mtosatti@redhat.com>, avi@redhat.com
Subject: [Qemu-devel] [patch uq/master 1/2] virtio-pci: wake up iothread on VIRTIO_PCI_QUEUE_NOTIFY
Date: Mon, 22 Feb 2010 10:59:07 -0300 [thread overview]
Message-ID: <20100222140209.878250600@amt.cnet> (raw)
In-Reply-To: 20100222135906.347393434@amt.cnet
[-- Attachment #1: virtio-iothread-wake --]
[-- Type: text/plain, Size: 651 bytes --]
VIRTIO_PCI_QUEUE_NOTIFY is used to inform availability of new buffers,
so wakeup the iothread to process that information immediately.
Reported-by: Amit Shah <amit.shah@redhat.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
Index: qemu/hw/virtio-pci.c
===================================================================
--- qemu.orig/hw/virtio-pci.c
+++ qemu/hw/virtio-pci.c
@@ -204,6 +204,7 @@ static void virtio_ioport_write(void *op
break;
case VIRTIO_PCI_QUEUE_NOTIFY:
virtio_queue_notify(vdev, val);
+ qemu_notify_event();
break;
case VIRTIO_PCI_STATUS:
vdev->status = val & 0xFF;
next prev parent reply other threads:[~2010-02-22 14:03 UTC|newest]
Thread overview: 58+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-02-22 13:59 [patch uq/master 0/2] wake iothread on virtio kick / flush_coalesced_mmio smp_wmb Marcelo Tosatti
2010-02-22 13:59 ` [Qemu-devel] " Marcelo Tosatti
2010-02-22 13:59 ` Marcelo Tosatti [this message]
2010-02-22 13:59 ` [Qemu-devel] [patch uq/master 1/2] virtio-pci: wake up iothread on VIRTIO_PCI_QUEUE_NOTIFY Marcelo Tosatti
2010-02-22 14:20 ` Avi Kivity
2010-02-22 14:20 ` [Qemu-devel] " Avi Kivity
2010-02-22 14:29 ` Marcelo Tosatti
2010-02-22 14:29 ` [Qemu-devel] " Marcelo Tosatti
2010-02-22 14:51 ` Avi Kivity
2010-02-22 14:51 ` [Qemu-devel] " Avi Kivity
2010-02-22 15:16 ` Marcelo Tosatti
2010-02-22 15:16 ` [Qemu-devel] " Marcelo Tosatti
2010-02-22 15:29 ` Anthony Liguori
2010-02-22 15:29 ` [Qemu-devel] " Anthony Liguori
2010-02-22 15:32 ` Avi Kivity
2010-02-22 15:32 ` [Qemu-devel] " Avi Kivity
2010-02-22 15:42 ` Anthony Liguori
2010-02-22 15:42 ` [Qemu-devel] " Anthony Liguori
2010-02-22 15:55 ` Avi Kivity
2010-03-12 2:45 ` [patch 0/2] introduce QEMUIOWorker and wake up iothread on virtio-serial-bus notification Marcelo Tosatti
2010-03-12 2:45 ` [Qemu-devel] " Marcelo Tosatti
2010-03-12 2:45 ` [patch 1/2] Pass QEMUIOWorker to qemu_notify_event Marcelo Tosatti
2010-03-12 2:45 ` [Qemu-devel] " Marcelo Tosatti
2010-03-22 21:16 ` Anthony Liguori
2010-03-22 21:16 ` Anthony Liguori
2010-03-25 13:47 ` [Qemu-devel] [patch 0/2] introduce QEMUIOWorker and wake up iothread on virtio-serial-bus notification (v2) Marcelo Tosatti
2010-03-25 13:47 ` [Qemu-devel] [patch 1/2] Pass QEMUIOWorker to qemu_notify_event Marcelo Tosatti
2010-03-25 21:06 ` Paul Brook
2010-03-26 3:55 ` Marcelo Tosatti
2010-03-26 15:23 ` Paul Brook
2010-03-26 15:40 ` Anthony Liguori
2010-03-25 13:47 ` [Qemu-devel] [patch 2/2] virtio-serial-bus: wake up iothread upon guest read notification Marcelo Tosatti
2010-03-12 2:45 ` Marcelo Tosatti
2010-03-12 2:45 ` [Qemu-devel] " Marcelo Tosatti
2010-03-12 5:53 ` Amit Shah
2010-03-12 5:53 ` [Qemu-devel] " Amit Shah
2010-02-22 13:59 ` [patch uq/master 2/2] kvm-all.c: define smp_wmb and use it for coalesced mmio Marcelo Tosatti
2010-02-22 13:59 ` [Qemu-devel] " Marcelo Tosatti
2010-02-22 14:23 ` Avi Kivity
2010-02-22 14:23 ` [Qemu-devel] " Avi Kivity
2010-02-22 14:45 ` Marcelo Tosatti
2010-02-22 14:45 ` [Qemu-devel] " Marcelo Tosatti
2010-02-22 14:57 ` Avi Kivity
2010-02-22 14:57 ` [Qemu-devel] " Avi Kivity
2010-02-22 14:57 ` Michael S. Tsirkin
2010-02-22 14:57 ` [Qemu-devel] " Michael S. Tsirkin
2010-02-22 15:08 ` Avi Kivity
2010-02-22 15:08 ` [Qemu-devel] " Avi Kivity
2010-02-22 15:08 ` Michael S. Tsirkin
2010-02-22 15:08 ` [Qemu-devel] " Michael S. Tsirkin
2010-02-22 15:28 ` Avi Kivity
2010-02-22 15:28 ` [Qemu-devel] " Avi Kivity
2010-02-22 14:44 ` Michael S. Tsirkin
2010-02-22 14:44 ` [Qemu-devel] " Michael S. Tsirkin
2010-02-22 16:57 ` Marcelo Tosatti
2010-02-22 16:57 ` [Qemu-devel] " Marcelo Tosatti
2010-02-22 17:04 ` Avi Kivity
2010-02-22 17:04 ` [Qemu-devel] " Avi Kivity
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