Re: [PATCH v8 8/9] hisi_acc_vfio_pci: Add support for VFIO live migration

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On Fri, 4 Mar 2022 16:57:20 -0400
Jason Gunthorpe <jgg@xxxxxxxxxx> wrote:

> On Thu, Mar 03, 2022 at 11:01:30PM +0000, Shameer Kolothum wrote:
> > From: Longfang Liu <liulongfang@xxxxxxxxxx>
> > 
> > VMs assigned with HiSilicon ACC VF devices can now perform live migration
> > if the VF devices are bind to the hisi_acc_vfio_pci driver.
> > 
> > Signed-off-by: Longfang Liu <liulongfang@xxxxxxxxxx>
> > Signed-off-by: Shameer Kolothum <shameerali.kolothum.thodi@xxxxxxxxxx>
> > ---
> >  drivers/vfio/pci/hisilicon/Kconfig            |    7 +
> >  .../vfio/pci/hisilicon/hisi_acc_vfio_pci.c    | 1078 ++++++++++++++++-
> >  .../vfio/pci/hisilicon/hisi_acc_vfio_pci.h    |  114 ++
> >  3 files changed, 1181 insertions(+), 18 deletions(-)
> >  create mode 100644 drivers/vfio/pci/hisilicon/hisi_acc_vfio_pci.h
> > 
> > diff --git a/drivers/vfio/pci/hisilicon/Kconfig b/drivers/vfio/pci/hisilicon/Kconfig
> > index dc723bad05c2..2a68d39f339f 100644
> > --- a/drivers/vfio/pci/hisilicon/Kconfig
> > +++ b/drivers/vfio/pci/hisilicon/Kconfig
> > @@ -3,6 +3,13 @@ config HISI_ACC_VFIO_PCI
> >  	tristate "VFIO PCI support for HiSilicon ACC devices"
> >  	depends on ARM64 || (COMPILE_TEST && 64BIT)
> >  	depends on VFIO_PCI_CORE
> > +	depends on PCI && PCI_MSI  
> 
> PCI is already in the depends from the 2nd line in
> drivers/vfio/pci/Kconfig, but it is harmless
> 
> > +	depends on UACCE || UACCE=n
> > +	depends on ACPI  
> 
> Scratching my head a bit on why we have these

Same curiosity from me, each of the CRYPTO_DEV_HISI_* options selected
also depend on these so they seem redundant.

I think we still require acks from Bjorn and Zaibo for select patches
in this series.


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