[OASIS Issue Tracker] (VIRTIO-25) balloon: remove VIRTIO_BALLOON_F_MUST_TELL_HOST and deflate queue.

[OASIS Issues Tracker <workgroup_mailer@lists.oasis-open.org>]

    [ https://tools.oasis-open.org/issues/browse/VIRTIO-25?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=37549#comment-37549 ] 

Michael Tsirkin commented on VIRTIO-25:
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the spec seems to already allow the requested usage.
close this item?


> balloon: remove VIRTIO_BALLOON_F_MUST_TELL_HOST and deflate queue.
> ------------------------------------------------------------------
>
>                 Key: VIRTIO-25
>                 URL: https://tools.oasis-open.org/issues/browse/VIRTIO-25
>             Project: OASIS Virtual I/O Device (VIRTIO) TC
>          Issue Type: Improvement
>            Reporter: Rusty Russell
>
> Simply allow the guest to fault back in balloon pages.  In theory VIRTIO_BALLOON_F_MUST_TELL_HOST allowed an implementation to create the page only if asked, but in practice it wasn't used that way.  And as a balloon implementation might not support that feature, such behaviour couldn't be relied upon anyway.



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