search for: virtio_balloon_ctrlq_cmd

...ack the pages we released. */ > wait_queue_head_t acked; > > @@ -93,6 +102,11 @@ struct virtio_balloon { > > /* To register callback in oom notifier call chain */ > struct notifier_block nb; > + > + /* Host to guest ctrlq cmd buf for free page report */ > + struct virtio_balloon_ctrlq_cmd free_page_cmd_in; > + /* Guest to Host ctrlq cmd buf for free page report */ > + struct virtio_balloon_ctrlq_cmd free_page_cmd_out; > }; > > static struct virtio_device_id id_table[] = { @@ -177,6 +191,26 @@ static void > send_balloon_page_sg(struct virtio_balloon *vb, > }...

...ack the pages we released. */ > wait_queue_head_t acked; > > @@ -93,6 +102,11 @@ struct virtio_balloon { > > /* To register callback in oom notifier call chain */ > struct notifier_block nb; > + > + /* Host to guest ctrlq cmd buf for free page report */ > + struct virtio_balloon_ctrlq_cmd free_page_cmd_in; > + /* Guest to Host ctrlq cmd buf for free page report */ > + struct virtio_balloon_ctrlq_cmd free_page_cmd_out; > }; > > static struct virtio_device_id id_table[] = { @@ -177,6 +191,26 @@ static void > send_balloon_page_sg(struct virtio_balloon *vb, > }...

...free_page_stop; + /* Waiting for host to ack the pages we released. */ wait_queue_head_t acked; @@ -93,6 +102,11 @@ struct virtio_balloon { /* To register callback in oom notifier call chain */ struct notifier_block nb; + + /* Host to guest ctrlq cmd buf for free page report */ + struct virtio_balloon_ctrlq_cmd free_page_cmd_in; + /* Guest to Host ctrlq cmd buf for free page report */ + struct virtio_balloon_ctrlq_cmd free_page_cmd_out; }; static struct virtio_device_id id_table[] = { @@ -186,6 +200,24 @@ static int send_balloon_page_sg(struct virtio_balloon *vb, return err; } +static int send_fr...

...k the pages we released. */ > wait_queue_head_t acked; > > @@ -93,6 +102,11 @@ struct virtio_balloon { > > /* To register callback in oom notifier call chain */ > struct notifier_block nb; > + > + /* Host to guest ctrlq cmd buf for free page report */ > + struct virtio_balloon_ctrlq_cmd free_page_cmd_in; > + /* Guest to Host ctrlq cmd buf for free page report */ > + struct virtio_balloon_ctrlq_cmd free_page_cmd_out; > }; > > static struct virtio_device_id id_table[] = { > @@ -186,6 +200,24 @@ static int send_balloon_page_sg(struct virtio_balloon *vb, > r...

...k the pages we released. */ > wait_queue_head_t acked; > > @@ -93,6 +102,11 @@ struct virtio_balloon { > > /* To register callback in oom notifier call chain */ > struct notifier_block nb; > + > + /* Host to guest ctrlq cmd buf for free page report */ > + struct virtio_balloon_ctrlq_cmd free_page_cmd_in; > + /* Guest to Host ctrlq cmd buf for free page report */ > + struct virtio_balloon_ctrlq_cmd free_page_cmd_out; > }; > > static struct virtio_device_id id_table[] = { > @@ -186,6 +200,24 @@ static int send_balloon_page_sg(struct virtio_balloon *vb, > r...

On Sunday, October 1, 2017 11:19 AM, Michael S. Tsirkin wrote: > On Sat, Sep 30, 2017 at 12:05:54PM +0800, Wei Wang wrote: > > +static void ctrlq_send_cmd(struct virtio_balloon *vb, > > + struct virtio_balloon_ctrlq_cmd *cmd, > > + bool inbuf) > > +{ > > + struct virtqueue *vq = vb->ctrl_vq; > > + > > + ctrlq_add_cmd(vq, cmd, inbuf); > > + if (!inbuf) { > > + /* > > + * All the input cmd buffers are replenished here. > > + * This is necessary becaus...

On Mon, Oct 02, 2017 at 04:38:01PM +0000, Wang, Wei W wrote: > On Sunday, October 1, 2017 11:19 AM, Michael S. Tsirkin wrote: > > On Sat, Sep 30, 2017 at 12:05:54PM +0800, Wei Wang wrote: > > > +static void ctrlq_send_cmd(struct virtio_balloon *vb, > > > + struct virtio_balloon_ctrlq_cmd *cmd, > > > + bool inbuf) > > > +{ > > > + struct virtqueue *vq = vb->ctrl_vq; > > > + > > > + ctrlq_add_cmd(vq, cmd, inbuf); > > > + if (!inbuf) { > > > + /* > > > + * All the input cmd buffers are replenished here....

On Mon, Oct 02, 2017 at 04:38:01PM +0000, Wang, Wei W wrote: > On Sunday, October 1, 2017 11:19 AM, Michael S. Tsirkin wrote: > > On Sat, Sep 30, 2017 at 12:05:54PM +0800, Wei Wang wrote: > > > +static void ctrlq_send_cmd(struct virtio_balloon *vb, > > > + struct virtio_balloon_ctrlq_cmd *cmd, > > > + bool inbuf) > > > +{ > > > + struct virtqueue *vq = vb->ctrl_vq; > > > + > > > + ctrlq_add_cmd(vq, cmd, inbuf); > > > + if (!inbuf) { > > > + /* > > > + * All the input cmd buffers are replenished here....

This patch series enhances the existing virtio-balloon with the following new features: 1) fast ballooning: transfer ballooned pages between the guest and host in chunks using sgs, instead of one array each time; and 2) free page block reporting: a new virtqueue to report guest free pages to the host. The second feature can be used to accelerate live migration of VMs. Here are some details: Live

This patch series enhances the existing virtio-balloon with the following new features: 1) fast ballooning: transfer ballooned pages between the guest and host in chunks using sgs, instead of one array each time; and 2) free page block reporting: a new virtqueue to report guest free pages to the host. The second feature can be used to accelerate live migration of VMs. Here are some details: Live

...+0000, Wang, Wei W wrote: > > > On Sunday, October 1, 2017 11:19 AM, Michael S. Tsirkin wrote: > > > > On Sat, Sep 30, 2017 at 12:05:54PM +0800, Wei Wang wrote: > > > > > +static void ctrlq_send_cmd(struct virtio_balloon *vb, > > > > > + struct virtio_balloon_ctrlq_cmd *cmd, > > > > > + bool inbuf) > > > > > +{ > > > > > + struct virtqueue *vq = vb->ctrl_vq; > > > > > + > > > > > + ctrlq_add_cmd(vq, cmd, inbuf); > > > > > + if (!inbuf) { > > > > > + /*...

...+0000, Wang, Wei W wrote: > > > On Sunday, October 1, 2017 11:19 AM, Michael S. Tsirkin wrote: > > > > On Sat, Sep 30, 2017 at 12:05:54PM +0800, Wei Wang wrote: > > > > > +static void ctrlq_send_cmd(struct virtio_balloon *vb, > > > > > + struct virtio_balloon_ctrlq_cmd *cmd, > > > > > + bool inbuf) > > > > > +{ > > > > > + struct virtqueue *vq = vb->ctrl_vq; > > > > > + > > > > > + ctrlq_add_cmd(vq, cmd, inbuf); > > > > > + if (!inbuf) { > > > > > + /*...

..., Oct 02, 2017 at 04:38:01PM +0000, Wang, Wei W wrote: >> On Sunday, October 1, 2017 11:19 AM, Michael S. Tsirkin wrote: >>> On Sat, Sep 30, 2017 at 12:05:54PM +0800, Wei Wang wrote: >>>> +static void ctrlq_send_cmd(struct virtio_balloon *vb, >>>> + struct virtio_balloon_ctrlq_cmd *cmd, >>>> + bool inbuf) >>>> +{ >>>> + struct virtqueue *vq = vb->ctrl_vq; >>>> + >>>> + ctrlq_add_cmd(vq, cmd, inbuf); >>>> + if (!inbuf) { >>>> + /* >>>> + * All the input cmd buffers are re...

...00, Wang, Wei W wrote: >>>> On Sunday, October 1, 2017 11:19 AM, Michael S. Tsirkin wrote: >>>>> On Sat, Sep 30, 2017 at 12:05:54PM +0800, Wei Wang wrote: >>>>>> +static void ctrlq_send_cmd(struct virtio_balloon *vb, >>>>>> + struct virtio_balloon_ctrlq_cmd *cmd, >>>>>> + bool inbuf) >>>>>> +{ >>>>>> + struct virtqueue *vq = vb->ctrl_vq; >>>>>> + >>>>>> + ctrlq_add_cmd(vq, cmd, inbuf); >>>>>> + if (!inbuf) { >>>>>> + /*...