linux-kernel - RE: [PATCH v7 1/6] vfio/type1: Introduce iova list and add iommu aperture validity check

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Message-ID: <5FC3163CFD30C246ABAA99954A238FA83F2DDB26@lhreml524-mbs.china.huawei.com>
Date:   Thu, 4 Jul 2019 12:36:24 +0000
From:   Shameerali Kolothum Thodi <shameerali.kolothum.thodi@...wei.com>
To:     Alex Williamson <alex.williamson@...hat.com>
CC:     "eric.auger@...hat.com" <eric.auger@...hat.com>,
        "pmorel@...ux.vnet.ibm.com" <pmorel@...ux.vnet.ibm.com>,
        "kvm@...r.kernel.org" <kvm@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "iommu@...ts.linux-foundation.org" <iommu@...ts.linux-foundation.org>,
        Linuxarm <linuxarm@...wei.com>,
        "John Garry" <john.garry@...wei.com>,
        "xuwei (O)" <xuwei5@...wei.com>,
        "kevin.tian@...el.com" <kevin.tian@...el.com>
Subject: RE: [PATCH v7 1/6] vfio/type1: Introduce iova list and add iommu
 aperture validity check



> -----Original Message-----
> From: Alex Williamson [mailto:alex.williamson@...hat.com]
> Sent: 03 July 2019 21:34
> To: Shameerali Kolothum Thodi <shameerali.kolothum.thodi@...wei.com>
> Cc: eric.auger@...hat.com; pmorel@...ux.vnet.ibm.com;
> kvm@...r.kernel.org; linux-kernel@...r.kernel.org;
> iommu@...ts.linux-foundation.org; Linuxarm <linuxarm@...wei.com>; John
> Garry <john.garry@...wei.com>; xuwei (O) <xuwei5@...wei.com>;
> kevin.tian@...el.com
> Subject: Re: [PATCH v7 1/6] vfio/type1: Introduce iova list and add iommu
> aperture validity check
> 
> 
> Welcome back Shameer ;)

Thanks Alex :)

> 
> On Wed, 26 Jun 2019 16:12:43 +0100
> Shameer Kolothum <shameerali.kolothum.thodi@...wei.com> wrote:
> 
> > This introduces an iova list that is valid for dma mappings. Make sure
> > the new iommu aperture window doesn't conflict with the current one or
> > with any existing dma mappings during attach.
> >
> > Signed-off-by: Shameer Kolothum <shameerali.kolothum.thodi@...wei.com>
> > ---
> >  drivers/vfio/vfio_iommu_type1.c | 181
> > +++++++++++++++++++++++++++++++-
> >  1 file changed, 177 insertions(+), 4 deletions(-)
> >
> > diff --git a/drivers/vfio/vfio_iommu_type1.c
> > b/drivers/vfio/vfio_iommu_type1.c index add34adfadc7..970d1ec06aed
> > 100644
> > --- a/drivers/vfio/vfio_iommu_type1.c
> > +++ b/drivers/vfio/vfio_iommu_type1.c
> > @@ -1,4 +1,3 @@
> > -// SPDX-License-Identifier: GPL-2.0-only
> >  /*
> >   * VFIO: IOMMU DMA mapping support for Type1 IOMMU
> >   *
> 
> Accidental merge deletion?  Thanks,
>

Yes it is. I will fix it.

Thanks,
Shameer

 
> Alex