Re: [PATCH 0/4] hisi_acc_vfio_pci: Add PRE_COPY migration feature support

[Alex Williamson]

On Wed, 23 Nov 2022 11:32:32 +0000
Shameer Kolothum <shameerali.kolothum.thodi@xxxxxxxxxx> wrote:

> Hi,
> 
> The optional PRE_COPY state support for migration feature is introduced
> by this series here[1](Thanks for that!). This is something HiSilicon
> ACC driver can make use for early dev compatibility checks and have
> made an attempt in the past here[2].
> 
> Adding this will speed up reporting the compatibility error early in
> the migration process without the need to wait for complete data
> transfer. This is sanity tested on a HiSilicon Platform.
> 
> Please take a look.
> 
> Regards,
> Shameer
> 
> 1.https://lore.kernel.org/all/20221106174630.25909-1-yishaih@xxxxxxxxxx/
> 2.https://lore.kernel.org/kvm/20220302172903.1995-8-shameerali.kolothum.thodi@xxxxxxxxxx/
> 
> Shameer Kolothum (4):
>   hisi_acc_vfio_pci: Add support for precopy IOCTL
>   hisi_acc_vfio_pci: Introduce support for PRE_COPY state transitions
>   hisi_acc_vfio_pci: Move the dev compatibility tests for early check
>   hisi_acc_vfio_pci: Enable PRE_COPY flag
> 
>  .../vfio/pci/hisilicon/hisi_acc_vfio_pci.c    | 147 ++++++++++++++++--
>  .../vfio/pci/hisilicon/hisi_acc_vfio_pci.h    |   2 +
>  2 files changed, 133 insertions(+), 16 deletions(-)

Applied to vfio next branch for v6.2.  Thanks,

Alex