search for: hdr_pa

...size_func(struct work_struct *work) > queue_work(system_freezable_wq, work); > } > > +static unsigned int cmdq_hdr_add(struct virtqueue *vq, > + struct virtio_balloon_cmdq_hdr *hdr, > + bool in) > +{ > + unsigned int id = VIRTQUEUE_DESC_ID_INIT; > + uint64_t hdr_pa = (uint64_t)virt_to_phys((void *)hdr); > + > + virtqueue_add_chain_desc(vq, hdr_pa, sizeof(*hdr), &id, &id, in); > + > + /* Deliver the hdr for the host to send commands. */ > + if (in) { > + hdr->flags = 0; > + virtqueue_add_chain(vq, id, 0, NULL, hdr, NULL); >...

...size_func(struct work_struct *work) > queue_work(system_freezable_wq, work); > } > > +static unsigned int cmdq_hdr_add(struct virtqueue *vq, > + struct virtio_balloon_cmdq_hdr *hdr, > + bool in) > +{ > + unsigned int id = VIRTQUEUE_DESC_ID_INIT; > + uint64_t hdr_pa = (uint64_t)virt_to_phys((void *)hdr); > + > + virtqueue_add_chain_desc(vq, hdr_pa, sizeof(*hdr), &id, &id, in); > + > + /* Deliver the hdr for the host to send commands. */ > + if (in) { > + hdr->flags = 0; > + virtqueue_add_chain(vq, id, 0, NULL, hdr, NULL); >...

...;> queue_work(system_freezable_wq, work); >> } >> >> +static unsigned int cmdq_hdr_add(struct virtqueue *vq, >> + struct virtio_balloon_cmdq_hdr *hdr, >> + bool in) >> +{ >> + unsigned int id = VIRTQUEUE_DESC_ID_INIT; >> + uint64_t hdr_pa = (uint64_t)virt_to_phys((void *)hdr); >> + >> + virtqueue_add_chain_desc(vq, hdr_pa, sizeof(*hdr), &id, &id, in); >> + >> + /* Deliver the hdr for the host to send commands. */ >> + if (in) { >> + hdr->flags = 0; >> + virtqueue_add_chain(vq, i...

...d miscq msg buf err\n", + __func__); + return; + } + + virtqueue_kick(vb->cmd_vq); +} + +static void cmdq_handle_unused_pages(struct virtio_balloon *vb) +{ + struct virtqueue *vq = vb->cmd_vq; + struct vring_desc *hdr_desc = &vb->cmdq_unused_page.desc_table[0]; + unsigned long hdr_pa; + unsigned int order = 0, migratetype = 0; + struct zone *zone = NULL; + struct page *page = NULL; + u64 pfn; + int ret = 0; + + /* Put the hdr to the first desc */ + hdr_pa = virt_to_phys((void *)&vb->cmdq_unused_page.hdr); + hdr_desc->addr = cpu_to_virtio64(vb->vdev, hdr_pa); + hdr_...

...85,25 +492,214 @@ static void update_balloon_size_func(struct work_struct *work) queue_work(system_freezable_wq, work); } +static unsigned int cmdq_hdr_add(struct virtqueue *vq, + struct virtio_balloon_cmdq_hdr *hdr, + bool in) +{ + unsigned int id = VIRTQUEUE_DESC_ID_INIT; + uint64_t hdr_pa = (uint64_t)virt_to_phys((void *)hdr); + + virtqueue_add_chain_desc(vq, hdr_pa, sizeof(*hdr), &id, &id, in); + + /* Deliver the hdr for the host to send commands. */ + if (in) { + hdr->flags = 0; + virtqueue_add_chain(vq, id, 0, NULL, hdr, NULL); + virtqueue_kick(vq); + } + + return i...

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 by one; and 2) cmdq: a new virtqueue to send commands between the device and driver. Currently, it supports commands to report memory stats (replace the old statq mechanism) and report guest unused pages.

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 by one; and 2) cmdq: a new virtqueue to send commands between the device and driver. Currently, it supports commands to report memory stats (replace the old statq mechanism) and report guest unused pages.

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, instead of one by one; and 2) cmdq: a new virtqueue to send commands between the device and driver. Currently, it supports commands to report memory stats (replace the old statq mechanism) and report guest unused pages. Liang Li

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, instead of one by one; and 2) cmdq: a new virtqueue to send commands between the device and driver. Currently, it supports commands to report memory stats (replace the old statq mechanism) and report guest unused pages. Liang Li