Re: [edk2-rfc] [edk2-devel] RFC: Adding support for ARM (RNDR etc.) to RngDxe

["Yao, Jiewen" <jiewen.yao@intel.com>]

Maybe you can upload the content to https://edk2.groups.io/g/devel/files/Designs, where we hold the design review ppt, etc.

I assume we want to discuss below two APIs implementation, right?
1) RngLib
2) EFI_RNG_PROTOCOL

Thank you
Yao Jiewen

> -----Original Message-----
> From: rfc@edk2.groups.io <rfc@edk2.groups.io> On Behalf Of Leif Lindholm
> Sent: Thursday, December 10, 2020 8:52 PM
> To: Sami Mujawar <Sami.Mujawar@arm.com>
> Cc: devel@edk2.groups.io; Samer El-Haj-Mahmoud <Samer.El-Haj-
> Mahmoud@arm.com>; Ard Biesheuvel <Ard.Biesheuvel@arm.com>;
> rebecca@nuviainc.com; rfc@edk2.groups.io; Yao, Jiewen
> <jiewen.yao@intel.com>; Kumar, Rahul1 <rahul1.kumar@intel.com>; nd
> <nd@arm.com>
> Subject: Re: [edk2-rfc] [edk2-devel] RFC: Adding support for ARM (RNDR etc.)
> to RngDxe
> 
> Hi Sami,
> 
> JPGs work, but preferably published in a location where they're
> unlikely to be deleted, and posted as URLs.
> 
> https://app.diagrams.net/ doesn't require a licensed application to
> edit, and can be "saved to github" for example.
> 
> Please make sure to use the diagrams to support/clarify the mailing
> list conversation rather than replacing it.
> 
> Best Regards,
> 
> Leif
> 
> On Thu, Dec 10, 2020 at 11:26:26 +0000, Sami Mujawar wrote:
> > Hi All,
> >
> > I am working on the TRNG FW API interface and will share more details for
> the discussion soon.
> > We had some thoughts about streamlining the RngDxe implementations
> > and would like to share some diagrams for the discussion.
> > My diagrams are in Visio that I can export as JPG images. However, I
> > am open to switching to any other suggested tool.
> >
> > Hi Leif,
> >
> > Can you suggest on how we can collaborate to share diagrams/documents,
> please?
> >
> > Regards,
> >
> > Sami Mujawar
> >
> > From: devel@edk2.groups.io <devel@edk2.groups.io> On Behalf Of Samer
> El-Haj-Mahmoud via groups.io
> > Sent: 09 December 2020 04:48 AM
> > To: devel@edk2.groups.io
> > Cc: rfc@edk2.groups.io; Jiewen Yao <jiewen.yao@intel.com>; Rahul Kumar
> <rahul1.kumar@intel.com>
> > Subject: Re: [edk2-devel] RFC: Adding support for ARM (RNDR etc.) to
> RngDxe
> >
> > There is also the TRNG FW API, which is an architected SMC firmware
> interface:
> >
> > https://developer.arm.com/documentation/den0098/latest/
> >
> > ________________________________
> > From: devel@edk2.groups.io<mailto:devel@edk2.groups.io>
> <devel@edk2.groups.io<mailto:devel@edk2.groups.io>> on behalf of
> Rebecca Cran via groups.io
> <rebecca=nuviainc.com@groups.io<mailto:rebecca=nuviainc.com@groups.io
> >>
> > Sent: Tuesday, December 8, 2020, 11:33 PM
> > To: devel@edk2.groups.io<mailto:devel@edk2.groups.io>
> > Cc: rfc@edk2.groups.io<mailto:rfc@edk2.groups.io>; Jiewen Yao; Rahul
> Kumar
> > Subject: [edk2-devel] RFC: Adding support for ARM (RNDR etc.) to RngDxe
> >
> > Currently, RngDxe in SecurityPkg only supports Intel, with RdRand support.
> >
> >
> > This RFC is to start a discussion about adding support for ARM.
> >
> >
> > I have a Git branch with support for the optional ARMv8.5 RNDR
> > instruction at https://github.com/bcran/edk2/commits/bcran-rndr which
> > moves the existing Intel support into a Rand directory, and adds code to
> > support RNDR in a new AArch64 directory.
> >
> > There are other RNG implementations available for ARM, including
> > platform-specific approaches on Graviton
> > (https://lwn.net/Articles/790304/) and other platforms, so a more
> > thorough rearchitecting/redesign may be desired.
> >
> >
> > --
> > Rebecca Cran
> >
> >
> >
> >
> >
> >
> > IMPORTANT NOTICE: The contents of this email and any attachments are
> confidential and may also be privileged. If you are not the intended recipient,
> please notify the sender immediately and do not disclose the contents to
> any other person, use it for any purpose, or store or copy the information in
> any medium. Thank you.
> >
> 
> 
> 
>