Re: [PATCH 03/14] vfio/migration: Cache stop size in VFIOMigration

[Avihai Horon <avihaih@nvidia.com>]

On 4/8/2026 7:55 PM, Peter Xu wrote:
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>
> Add a field to cache stop size.  Note that there's an initial value change
> in vfio_save_setup for the stop size default, but it shouldn't matter if it
> is followed with a math of MIN() against VFIO_MIG_DEFAULT_DATA_BUFFER_SIZE.
>
> Document that all the three sizes we read from VFIO's uAPI on dirty or stop
> sizes are estimates, so QEMU needs to always remember they can be anything.
>
> Signed-off-by: Peter Xu <peterx@redhat.com>
> ---
>   hw/vfio/vfio-migration-internal.h |  8 +++++
>   hw/vfio/migration.c               | 50 ++++++++++++++++++-------------
>   2 files changed, 38 insertions(+), 20 deletions(-)

Reviewed-by: Avihai Horon <avihaih@nvidia.com>