RE: [PATCH 1/2] fpga: mgr: Adds secure BitStream loading support

[Nava kishore Manne]

Ping!

> -----Original Message-----
> From: Nava kishore Manne
> Sent: Wednesday, January 27, 2021 2:43 PM
> To: Moritz Fischer <mdf@xxxxxxxxxx>
> Cc: trix@xxxxxxxxxx; robh+dt@xxxxxxxxxx; Michal Simek
> <michals@xxxxxxxxxx>; linux-fpga@xxxxxxxxxxxxxxx;
> devicetree@xxxxxxxxxxxxxxx; linux-arm-kernel@xxxxxxxxxxxxxxxxxxx; linux-
> kernel@xxxxxxxxxxxxxxx; git <git@xxxxxxxxxx>; chinnikishore369@xxxxxxxxx
> Subject: RE: [PATCH 1/2] fpga: mgr: Adds secure BitStream loading support
> 
> Hi Moritz,
> 
> 	Thanks for the review.
> Please find my response inline.
> 
> > -----Original Message-----
> > From: Moritz Fischer <mdf@xxxxxxxxxx>
> > Sent: Friday, January 22, 2021 10:47 AM
> > To: Nava kishore Manne <navam@xxxxxxxxxx>
> > Cc: mdf@xxxxxxxxxx; trix@xxxxxxxxxx; robh+dt@xxxxxxxxxx; Michal Simek
> > <michals@xxxxxxxxxx>; linux-fpga@xxxxxxxxxxxxxxx;
> > devicetree@xxxxxxxxxxxxxxx; linux-arm-kernel@xxxxxxxxxxxxxxxxxxx;
> > linux- kernel@xxxxxxxxxxxxxxx; git <git@xxxxxxxxxx>;
> > chinnikishore369@xxxxxxxxx
> > Subject: Re: [PATCH 1/2] fpga: mgr: Adds secure BitStream loading
> > support
> >
> > On Mon, Jan 18, 2021 at 08:20:57AM +0530, Nava kishore Manne wrote:
> > > This commit adds secure flags to the framework to support secure
> > > BitStream Loading.
> > >
> > > Signed-off-by: Nava kishore Manne <nava.manne@xxxxxxxxxx>
> > > ---
> > >  drivers/fpga/of-fpga-region.c | 10 ++++++++++
> > > include/linux/fpga/fpga-mgr.h | 12 ++++++++++++
> > >  2 files changed, 22 insertions(+)
> > >
> > > diff --git a/drivers/fpga/of-fpga-region.c
> > > b/drivers/fpga/of-fpga-region.c index e405309baadc..3a5eb4808888
> > > 100644
> > > --- a/drivers/fpga/of-fpga-region.c
> > > +++ b/drivers/fpga/of-fpga-region.c
> > > @@ -228,6 +228,16 @@ static struct fpga_image_info
> > *of_fpga_region_parse_ov(
> > >  	if (of_property_read_bool(overlay, "encrypted-fpga-config"))
> > >  		info->flags |= FPGA_MGR_ENCRYPTED_BITSTREAM;
> > >
> > > +	if (of_property_read_bool(overlay, "userkey-encrypted-fpga-
> > config"))
> > > +		info->flags |=
> > FPGA_MGR_USERKEY_ENCRYPTED_BITSTREAM;
> >
> > Can this just be encrypted-fpga-config/FPGA_MGR_ENCRYPTED?
> 
> In Encryption we have two kinds of use case one is Encrypted Bitstream
> loading with Device-key and Other one is Encrypted Bitstream loading with
> User-key. To differentiate both the use cases this Changes are needed.
> 
> Regards,
> Navakishore.