search for: ivq

...+ virtio_balloon_free_pages, s); > > if (ret < 0) { > error_setg(errp, "Only one balloon device is supported"); > @@ -440,6 +518,7 @@ static void virtio_balloon_device_realize(DeviceState *dev, Error **errp) > s->ivq = virtio_add_queue(vdev, 128, virtio_balloon_handle_output); > s->dvq = virtio_add_queue(vdev, 128, virtio_balloon_handle_output); > s->svq = virtio_add_queue(vdev, 128, virtio_balloon_receive_stats); > + s->fvq = virtio_add_queue(vdev, 128, virtio_balloon_get_free_pa...

...n.h > index 6a2514d..848a7fb 100644 > --- a/include/hw/virtio/virtio-balloon.h > +++ b/include/hw/virtio/virtio-balloon.h > @@ -42,7 +42,7 @@ enum virtio_balloon_free_page_report_status { > > typedef struct VirtIOBalloon { > VirtIODevice parent_obj; > - VirtQueue *ivq, *dvq, *svq, *free_page_vq, *icvq; > + VirtQueue *ivq, *dvq, *svq, *free_page_vq, *icvq, *dcvq; > uint32_t free_page_report_status; > uint32_t num_pages; > uint32_t actual; > -- > 2.7.4

Hello all, Here is a new iteration of the patch series that implements a transport for guest and host communications. The code has been updated to reuse the virtio-console device instead of creating a new virtio-serial device. I've tested for compatibility (old qemu & new kernel, new qemu & old kernel, new qemu & new kernel) and it all works fine. There are a few items on my

Hello all, Here is a new iteration of the patch series that implements a transport for guest and host communications. The code has been updated to reuse the virtio-console device instead of creating a new virtio-serial device. I've tested for compatibility (old qemu & new kernel, new qemu & old kernel, new qemu & new kernel) and it all works fine. There are a few items on my

...t; + continue; > + } > > - trace_virtio_balloon_handle_output(memory_region_name(section.mr), > - pa); > - if (!qemu_balloon_is_inhibited()) { > - if (vq == s->ivq) { > - balloon_inflate_page(s, section.mr, > - section.offset_within_region, &pbp); > - } else if (vq == s->dvq) { > - balloon_deflate_page(s, section.mr, section.offset_within_region); &...

...virtio_balloon_stat, + virtio_balloon_free_pages, s); if (ret < 0) { error_setg(errp, "Only one balloon device is supported"); @@ -440,6 +518,7 @@ static void virtio_balloon_device_realize(DeviceState *dev, Error **errp) s->ivq = virtio_add_queue(vdev, 128, virtio_balloon_handle_output); s->dvq = virtio_add_queue(vdev, 128, virtio_balloon_handle_output); s->svq = virtio_add_queue(vdev, 128, virtio_balloon_receive_stats); + s->fvq = virtio_add_queue(vdev, 128, virtio_balloon_get_free_pages); re...

The current QEMU live migration implementation mark the all the guest's RAM pages as dirtied in the ram bulk stage, all these pages will be processed and that takes quit a lot of CPU cycles. >From guest's point of view, it doesn't care about the content in free pages. We can make use of this fact and skip processing the free pages in the ram bulk stage, it can save a lot CPU cycles

The current QEMU live migration implementation mark the all the guest's RAM pages as dirtied in the ram bulk stage, all these pages will be processed and that takes quit a lot of CPU cycles. >From guest's point of view, it doesn't care about the content in free pages. We can make use of this fact and skip processing the free pages in the ram bulk stage, it can save a lot CPU cycles

...irtIOBalloonStat { uint64_t val; } QEMU_PACKED VirtIOBalloonStat; +typedef struct virtio_balloon_stat_modern { + uint16_t tag; + uint8_t reserved[6]; + uint64_t val; +} VirtIOBalloonStatModern; + typedef struct VirtIOBalloon { VirtIODevice parent_obj; VirtQueue *ivq, *dvq, *svq; -- MST

...irtIOBalloonStat { uint64_t val; } QEMU_PACKED VirtIOBalloonStat; +typedef struct virtio_balloon_stat_modern { + uint16_t tag; + uint8_t reserved[6]; + uint64_t val; +} VirtIOBalloonStatModern; + typedef struct VirtIOBalloon { VirtIODevice parent_obj; VirtQueue *ivq, *dvq, *svq; -- MST

...P order. "Set option cont-pages to on" -> 'Once the feature is enabled via "cont-pages=on"' "open flags" -> "unlock VIRTIO_BALLOON_VQ_INFLATE_CONT". > Then It will get continuous pages PFN that its order is current_pages_order > from VQ ivq use use madvise MADV_DONTNEED release the page. I fail to parse this sentence. I assume something like "current_pages_order is set by the guest and configures the size of the pages communicated via the inflate/deflate queue by the guest. It defaults to 0, which corresponds to the legacy hand...

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