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    Subject[PATCH v2 0/2] introduction of version attribute for VFIO live migration
    Date
    This patchset introduces a version attribute under sysfs of VFIO Mediated
    devices.

    This version attribute is used to check whether two mdev devices are
    compatible.
    user space software can take advantage of this version attribute to
    determine whether to launch live migration between two mdev devices.

    Patch 1 defines version attribute in Documentation/vfio-mediated-device.txt

    Patch 2 uses GVT as an example to show how to expose version attribute and
    check device compatibility in vendor driver.


    v2:
    1. renamed patched 1
    2. made definition of device version string completely private to vendor
    driver
    3. abandoned changes to sample mdev drivers
    4. described intent and usage of version attribute more clearly.

    Yan Zhao (2):
    vfio/mdev: add version attribute for mdev device
    drm/i915/gvt: export mdev device version to sysfs for Intel vGPU

    Documentation/vfio-mediated-device.txt | 135 ++++++++++++++++++++++
    drivers/gpu/drm/i915/gvt/Makefile | 2 +-
    drivers/gpu/drm/i915/gvt/device_version.c | 84 ++++++++++++++
    drivers/gpu/drm/i915/gvt/gvt.c | 51 ++++++++
    drivers/gpu/drm/i915/gvt/gvt.h | 6 +
    5 files changed, 277 insertions(+), 1 deletion(-)
    create mode 100644 drivers/gpu/drm/i915/gvt/device_version.c

    --
    2.17.1

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