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    Subject[PATCH v2 0/2] Drivers: hv: balloon: Temporary fixes for ARM64
    Date
    v1: https://lore.kernel.org/lkml/20220223131548.2234326-1-boqun.feng@gmail.com/

    Changes since v1:

    * Wording changes suggested by Michael Kelley.

    Since Hyper-V always uses 4k pages, hv_balloon has some difficulties
    working on ARM64 with larger pages[1]. Besides the memory hot add
    messages of Hyper-V doesn't have the information of NUMA node id of the
    added memory range, and ARM64 currently doesn't provide the conversion
    from a physical address to a node id, as a result the hv_balloon driver
    couldn't handle hot add properly when there are more than one NUMA node.

    Among these issues, post_status() is easy to fix, while the unballoon
    issue and the hot-add issue requires more discussion. To make the
    hv_balloon driver work at the best effort, this patchset fixes the
    post_status() and temporarily disable the balloon and hot-add
    accordingly.

    Looking forwards to comments and suggestions.

    Regards,
    Boqun

    [1]: https://lore.kernel.org/lkml/20220105165028.1343706-1-vkuznets@redhat.com/

    *** BLURB HERE ***

    Boqun Feng (2):
    Drivers: hv: balloon: Support status report for larger page sizes
    Drivers: hv: balloon: Disable balloon and hot-add accordingly

    drivers/hv/hv_balloon.c | 49 ++++++++++++++++++++++++++++++++++++-----
    1 file changed, 44 insertions(+), 5 deletions(-)

    --
    2.35.1

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