[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
[Qemu-devel] [PULL v3 10/21] virtio: add AioContext-specific function fo
From: |
Michael S. Tsirkin |
Subject: |
[Qemu-devel] [PULL v3 10/21] virtio: add AioContext-specific function for host notifiers |
Date: |
Thu, 25 Feb 2016 13:20:52 +0200 |
From: Paolo Bonzini <address@hidden>
This is used to register ioeventfd with a dataplane thread.
Signed-off-by: Paolo Bonzini <address@hidden>
Reviewed-by: Michael S. Tsirkin <address@hidden>
Signed-off-by: Michael S. Tsirkin <address@hidden>
Reviewed-by: Fam Zheng <address@hidden>
Acked-by: Stefan Hajnoczi <address@hidden>
---
include/hw/virtio/virtio.h | 2 ++
hw/virtio/virtio.c | 16 ++++++++++++++++
2 files changed, 18 insertions(+)
diff --git a/include/hw/virtio/virtio.h b/include/hw/virtio/virtio.h
index c38a2fe..3ecdb20 100644
--- a/include/hw/virtio/virtio.h
+++ b/include/hw/virtio/virtio.h
@@ -249,6 +249,8 @@ void virtio_queue_set_guest_notifier_fd_handler(VirtQueue
*vq, bool assign,
EventNotifier *virtio_queue_get_host_notifier(VirtQueue *vq);
void virtio_queue_set_host_notifier_fd_handler(VirtQueue *vq, bool assign,
bool set_handler);
+void virtio_queue_aio_set_host_notifier_handler(VirtQueue *vq, AioContext *ctx,
+ bool assign, bool set_handler);
void virtio_queue_notify_vq(VirtQueue *vq);
void virtio_irq(VirtQueue *vq);
VirtQueue *virtio_vector_first_queue(VirtIODevice *vdev, uint16_t vector);
diff --git a/hw/virtio/virtio.c b/hw/virtio/virtio.c
index e365960..f419e7c 100644
--- a/hw/virtio/virtio.c
+++ b/hw/virtio/virtio.c
@@ -1786,6 +1786,22 @@ static void
virtio_queue_host_notifier_read(EventNotifier *n)
}
}
+void virtio_queue_aio_set_host_notifier_handler(VirtQueue *vq, AioContext *ctx,
+ bool assign, bool set_handler)
+{
+ if (assign && set_handler) {
+ aio_set_event_notifier(ctx, &vq->host_notifier, true,
+ virtio_queue_host_notifier_read);
+ } else {
+ aio_set_event_notifier(ctx, &vq->host_notifier, true, NULL);
+ }
+ if (!assign) {
+ /* Test and clear notifier before after disabling event,
+ * in case poll callback didn't have time to run. */
+ virtio_queue_host_notifier_read(&vq->host_notifier);
+ }
+}
+
void virtio_queue_set_host_notifier_fd_handler(VirtQueue *vq, bool assign,
bool set_handler)
{
--
MST
- [Qemu-devel] [PULL v3 00/21] vhost, virtio, pci, pc, Michael S. Tsirkin, 2016/02/25
- [Qemu-devel] [PULL v3 02/21] vhost-user: don't merge regions with different fds, Michael S. Tsirkin, 2016/02/25
- [Qemu-devel] [PULL v3 03/21] move get_current_ram_size to virtio-balloon.c, Michael S. Tsirkin, 2016/02/25
- [Qemu-devel] [PULL v3 01/21] bios-linker-loader: document+validate input, Michael S. Tsirkin, 2016/02/25
- [Qemu-devel] [PULL v3 04/21] virtio-balloon: rewrite get_current_ram_size(), Michael S. Tsirkin, 2016/02/25
- [Qemu-devel] [PULL v3 05/21] balloon: Use only 'pc-dimm' type dimm for ballooning, Michael S. Tsirkin, 2016/02/25
- [Qemu-devel] [PULL v3 06/21] pci core: function pci_host_bus_register() cleanup, Michael S. Tsirkin, 2016/02/25
- [Qemu-devel] [PULL v3 07/21] pci core: function pci_bus_init() cleanup, Michael S. Tsirkin, 2016/02/25
- [Qemu-devel] [PULL v3 10/21] virtio: add AioContext-specific function for host notifiers,
Michael S. Tsirkin <=
- [Qemu-devel] [PULL v3 11/21] virtio: export vring_notify as virtio_should_notify, Michael S. Tsirkin, 2016/02/25
- [Qemu-devel] [PULL v3 09/21] vring: make vring_enable_notification return void, Michael S. Tsirkin, 2016/02/25
- [Qemu-devel] [PULL v3 08/21] block-migration: acquire AioContext as necessary, Michael S. Tsirkin, 2016/02/25
- [Qemu-devel] [PULL v3 12/21] virtio-blk: fix "disabled data plane" mode, Michael S. Tsirkin, 2016/02/25
- [Qemu-devel] [PULL v3 14/21] virtio-scsi: do not use vring in dataplane, Michael S. Tsirkin, 2016/02/25
- [Qemu-devel] [PULL v3 13/21] virtio-blk: do not use vring in dataplane, Michael S. Tsirkin, 2016/02/25
- [Qemu-devel] [PULL v3 15/21] vring: remove, Michael S. Tsirkin, 2016/02/25
- [Qemu-devel] [PULL v3 16/21] tests/vhost-user-bridge: fix build on 32 bit systems, Michael S. Tsirkin, 2016/02/25
- [Qemu-devel] [PULL v3 17/21] q35: Remove old machine versions, Michael S. Tsirkin, 2016/02/25
- [Qemu-devel] [PULL v3 18/21] machine: Remove no_tco field, Michael S. Tsirkin, 2016/02/25