linux-kernel - [PATCH 0/4] hisi_acc_vfio_pci: Add PRE

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Message-ID: <20221123113236.896-1-shameerali.kolothum.thodi@huawei.com>
Date:   Wed, 23 Nov 2022 11:32:32 +0000
From:   Shameer Kolothum <shameerali.kolothum.thodi@...wei.com>
To:     <kvm@...r.kernel.org>, <linux-kernel@...r.kernel.org>
CC:     <alex.williamson@...hat.com>, <jgg@...dia.com>,
        <yishaih@...dia.com>, <kevin.tian@...el.com>,
        <linuxarm@...wei.com>, <liulongfang@...wei.com>,
        <prime.zeng@...ilicon.com>
Subject: [PATCH 0/4] hisi_acc_vfio_pci: Add PRE_COPY migration feature support 

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@nvidia.com/
2.https://lore.kernel.org/kvm/20220302172903.1995-8-shameerali.kolothum.thodi@huawei.com/

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(-)

-- 
2.34.1