search for: send_free_page_sg

...t 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, > } > } > > +static void send_free_page_sg(struct virtqueue *vq, void *addr, > +uint32_t size) { > + unsigned int len; > + int err = -ENOSPC; > + > + do { > + if (vq->num_free) { > + err = add_one_sg(vq, addr, size); > + /* Sanity check: this can't really happen */ > + WARN_ON(err); > + if (!err...

...t 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, > } > } > > +static void send_free_page_sg(struct virtqueue *vq, void *addr, > +uint32_t size) { > + unsigned int len; > + int err = -ENOSPC; > + > + do { > + if (vq->num_free) { > + err = add_one_sg(vq, addr, size); > + /* Sanity check: this can't really happen */ > + WARN_ON(err); > + if (!err...

...rlq_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_free_page_sg(struct virtqueue *vq, void *addr, uint32_t size) +{ + int ret = 0; + + /* + * Since this is an optimization feature, losing a couplle of free + * pages to report isn't important. We simply resturn without adding + * the page if the vq is full. + */ + if (vq->num_free) { + ret = add_one_...

...rting free pages */ + bool report_free_page_stop; + uint32_t free_page_cmd_id; + /* Waiting for host to ack the pages we released. */ wait_queue_head_t acked; @@ -191,6 +200,30 @@ static void send_balloon_page_sg(struct virtio_balloon *vb, kick_and_wait(vq, vb->acked); } +static void send_free_page_sg(struct virtqueue *vq, void *addr, uint32_t size) +{ + int err = 0; + unsigned int len; + + /* Detach all the used buffers from the vq */ + while (virtqueue_get_buf(vq, &len)) + ; + + /* + * Since this is an optimization feature, losing a couple of free + * pages to report isn't important...

...uint32_t free_page_cmd_id; > + > /* Waiting for host to ack the pages we released. */ > wait_queue_head_t acked; > > @@ -191,6 +200,30 @@ static void send_balloon_page_sg(struct virtio_balloon *vb, > kick_and_wait(vq, vb->acked); > } > > +static void send_free_page_sg(struct virtqueue *vq, void *addr, uint32_t size) > +{ > + int err = 0; > + unsigned int len; > + > + /* Detach all the used buffers from the vq */ > + while (virtqueue_get_buf(vq, &len)) > + ; > + > + /* > + * Since this is an optimization feature, losing a coupl...

...uint32_t free_page_cmd_id; > + > /* Waiting for host to ack the pages we released. */ > wait_queue_head_t acked; > > @@ -191,6 +200,30 @@ static void send_balloon_page_sg(struct virtio_balloon *vb, > kick_and_wait(vq, vb->acked); > } > > +static void send_free_page_sg(struct virtqueue *vq, void *addr, uint32_t size) > +{ > + int err = 0; > + unsigned int len; > + > + /* Detach all the used buffers from the vq */ > + while (virtqueue_get_buf(vq, &len)) > + ; > + > + /* > + * Since this is an optimization feature, losing a coupl...

..._cmd_id; > > + > > /* Waiting for host to ack the pages we released. */ > > wait_queue_head_t acked; > > @@ -191,6 +200,30 @@ static void send_balloon_page_sg(struct virtio_balloon *vb, > > kick_and_wait(vq, vb->acked); > > } > > +static void send_free_page_sg(struct virtqueue *vq, void *addr, uint32_t size) > > +{ > > + int err = 0; > > + unsigned int len; > > + > > + /* Detach all the used buffers from the vq */ > > + while (virtqueue_get_buf(vq, &len)) > > + ; > > + > > + /* > > + * Sin...

...> + uint32_t free_page_cmd_id; > + > /* Waiting for host to ack the pages we released. */ > wait_queue_head_t acked; > > @@ -191,6 +200,30 @@ static void send_balloon_page_sg(struct virtio_balloon *vb, > kick_and_wait(vq, vb->acked); > } > > +static void send_free_page_sg(struct virtqueue *vq, void *addr, uint32_t size) > +{ > + int err = 0; > + unsigned int len; > + > + /* Detach all the used buffers from the vq */ > + while (virtqueue_get_buf(vq, &len)) > + ; > + > + /* > + * Since this is an optimization feature, losing a coupl...

...> + uint32_t free_page_cmd_id; > + > /* Waiting for host to ack the pages we released. */ > wait_queue_head_t acked; > > @@ -191,6 +200,30 @@ static void send_balloon_page_sg(struct virtio_balloon *vb, > kick_and_wait(vq, vb->acked); > } > > +static void send_free_page_sg(struct virtqueue *vq, void *addr, uint32_t size) > +{ > + int err = 0; > + unsigned int len; > + > + /* Detach all the used buffers from the vq */ > + while (virtqueue_get_buf(vq, &len)) > + ; > + > + /* > + * Since this is an optimization feature, losing a coupl...

...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_free_page_sg(struct virtqueue *vq, void *addr, uint32_t size) > +{ > + int ret = 0; > + > + /* > + * Since this is an optimization feature, losing a couplle of free typo > + * pages to report isn't important. We simply resturn without adding > + * the page if the vq is full. > +...

...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_free_page_sg(struct virtqueue *vq, void *addr, uint32_t size) > +{ > + int ret = 0; > + > + /* > + * Since this is an optimization feature, losing a couplle of free typo > + * pages to report isn't important. We simply resturn without adding > + * the page if the vq is full. > +...

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

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