search for: virtio_balloon_f_

On Tue, May 28, 2013 at 07:40:17PM +0200, Paolo Bonzini wrote: > The idea of the VIRTIO_BALLOON_F_MUST_TELL_HOST feature was to let drivers > skip usage of the deflate queue when leaking the balloon ("silent > deflation"). Guests may benefit from silent deflate by aggressively > inflating the balloon; they know that they will be able to use ballooned > pages without issuin...

The idea of the VIRTIO_BALLOON_F_MUST_TELL_HOST feature is to let drivers skip usage of the deflate queue when leaking the balloon ("silent deflation"). Guests may benefit from silent deflate by aggressively inflating the balloon; they know that they will be able to use ballooned pages without issuing a (blocking) reques...

The idea of the VIRTIO_BALLOON_F_MUST_TELL_HOST feature is to let drivers skip usage of the deflate queue when leaking the balloon ("silent deflation"). Guests may benefit from silent deflate by aggressively inflating the balloon; they know that they will be able to use ballooned pages without issuing a (blocking) reques...

The idea of the VIRTIO_BALLOON_F_MUST_TELL_HOST feature was to let drivers skip usage of the deflate queue when leaking the balloon ("silent deflation"). Guests may benefit from silent deflate by aggressively inflating the balloon; they know that they will be able to use ballooned pages without issuing a (blocking) reque...

...5 deletions(-) >> >> diff --git a/virtio-spec.lyx b/virtio-spec.lyx >> index adec0a5..5c76a87 100644 >> --- a/virtio-spec.lyx >> +++ b/virtio-spec.lyx >> @@ -7219,11 +7219,46 @@ bits >> >> \begin_deeper >> \begin_layout Description >> -VIRTIO_BALLOON_F_MUST_TELL_HOST >> +VIRTIO_BALLOON_F_ >> +\change_deleted 1531152142 1347020601 >> +MUST >> +\change_inserted 1531152142 1347020602 >> +CAN >> +\change_unchanged >> +_TELL_HOST >> \begin_inset space ~ >> \end_inset >> >> -(0) Host...

VIRTIO_BALLOON_F_MUST_TELL_HOST cannot be used properly because it is a "negative" feature: it tells you that silent defalte is not supported. Right now, QEMU refuses migration if the target does not support all the features that were negotiated. But then: - a migration from non-MUST_TELL_HOST to MUST_TE...

VIRTIO_BALLOON_F_MUST_TELL_HOST cannot be used properly because it is a "negative" feature: it tells you that silent defalte is not supported. Right now, QEMU refuses migration if the target does not support all the features that were negotiated. But then: - a migration from non-MUST_TELL_HOST to MUST_TE...

Here is the series, split in two patches, with small edits and new commit messages. Paolo Bonzini (2): virtio-balloon spec: rewrite description of VIRTIO_BALLOON_F_MUST_TELL_HOST virtio-balloon spec: reintroduce "silent deflation" feature virtio-spec.lyx | 238 ++++++++++++++++++++++++++++++++++++++++++++++++++++++-- 1 file changed, 233 insertions(+), 5 deletions(-) -- 1.8.2.1

...git a/virtio-spec.lyx b/virtio-spec.lyx > >> index adec0a5..5c76a87 100644 > >> --- a/virtio-spec.lyx > >> +++ b/virtio-spec.lyx > >> @@ -7219,11 +7219,46 @@ bits > >> > >> \begin_deeper > >> \begin_layout Description > >> -VIRTIO_BALLOON_F_MUST_TELL_HOST > >> +VIRTIO_BALLOON_F_ > >> +\change_deleted 1531152142 1347020601 > >> +MUST > >> +\change_inserted 1531152142 1347020602 > >> +CAN > >> +\change_unchanged > >> +_TELL_HOST > >> \begin_inset space ~ > >&g...