Hi Rebecca,
I agree MdePkg/Library/BaseRngLib can be refactored to support both x86 and AArch64.
BaseRngLib would then be a RngLib instance that uses CPU instructions to provide random numbers.
Regards,
Sami Mujawar
From:
Bret Barkelew <Bret.Barkelew@microsoft.com>
Date: Monday, 26 April 2021 at 22:45
To: devel@edk2.groups.io <devel@edk2.groups.io>, rebecca@nuviainc.com <rebecca@nuviainc.com>, Sami Mujawar <Sami.Mujawar@arm.com>, Samer El-Haj-Mahmoud <Samer.El-Haj-Mahmoud@arm.com>, Ard Biesheuvel <Ard.Biesheuvel@arm.com>, leif@nuviainc.com <leif@nuviainc.com>
Cc: rfc@edk2.groups.io <rfc@edk2.groups.io>, Yao, Jiewen <jiewen.yao@intel.com>, Rahul Kumar <rahul1.kumar@intel.com>, nd <nd@arm.com>, Jose Marinho <Jose.Marinho@arm.com>
Subject: RE: [EXTERNAL] Re: [edk2-devel] RFC: Adding support for ARM (RNDR etc.) to RngDxe
I vote the latter.
- Bret
From: Rebecca Cran via groups.io
Sent: Monday, April 26, 2021 2:29 PM
To: Sami Mujawar;
devel@edk2.groups.io; Samer El-Haj-Mahmoud;
Ard Biesheuvel;
leif@nuviainc.com
Cc: rfc@edk2.groups.io;
Yao, Jiewen; Rahul Kumar;
nd; Jose Marinho
Subject: [EXTERNAL] Re: [edk2-devel] RFC: Adding support for ARM (RNDR etc.) to RngDxe
Hi Sami,
I've been looking through the design document again, and was wondering
if the work I previously did will just slot in?
Were you thinking the "RngLib|RNDR" would go into ArmPkg (since it's not
labeled as being in BaseRngLib)? Or would it still make sense to
refactor MdePkg/Library/BaseRngLib to support both x86 (using RDRAND)
and aarch64 (using RNDR)?
--
Rebecca Cran
On 4/22/21 3:30 AM, Sami Mujawar wrote:
> Hi Rebecca,
>
> I have been working on the following modules (See slide 11 in “EDKII -
> Proposed update to RNG implementation.pdf
> <https://nam06.safelinks.protection.outlook.com/?url=https%3A%2F%2Fedk2.groups.io%2Fg%2Fdevel%2Ffiles%2FDesigns%2F2021%2F0116%2FEDKII%2520-%2520Proposed%2520update%2520to%2520RNG%2520implementation.pdf&data=04%7C01%7Cbret.barkelew%40microsoft.com%7C676a9101f67845dbdc8908d908fa4cd1%7C72f988bf86f141af91ab2d7cd011db47%7C1%7C0%7C637550693569385394%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&sdata=Q8ka83ReO2aG8yTVrgpTAVxczJVjl2JBH3ksHo2%2BSHk%3D&reserved=0>”):
>
> 1. TrngLib|FwTrnglib (Arm Firmware TRNG)
> 2. DrbgLib stack – with support for DrbgAlgorithmLib|CRT_DRBG &
> AesLib|ArmAesInstructionLib.
>
> I plan to post patches for (a) in the next fortnight. Following this I
> plan to update the proposal with the interface definitions for the
> various library interfaces in the DrbgLib Stack.
>
> I have not looked at RngLib|RNDR as I believe you were interested in
> implementing the part. Kindly let me know if you plan to implement this
> and the platform you would be using for testing. It looks like the
> FVP_Base_AEMv8A-AEMv8A and the FVP-RevC models support RNDR, so these
> could be used for testing as well. Please feel free to get in touch
> should you need any help with the model parameters or if you face any
> issues.
>
> Regards,
>
> Sami Mujawar
>
> *From: *Rebecca Cran <rebecca@nuviainc.com>
> *Date: *Tuesday, 20 April 2021 at 21:04
> *To: *Sami Mujawar <Sami.Mujawar@arm.com>, devel@edk2.groups.io
> <devel@edk2.groups.io>, Samer El-Haj-Mahmoud
> <Samer.El-Haj-Mahmoud@arm.com>, Ard Biesheuvel <Ard.Biesheuvel@arm.com>,
> leif@nuviainc.com <leif@nuviainc.com>
> *Cc: *rfc@edk2.groups.io <rfc@edk2.groups.io>, Jiewen Yao
> <jiewen.yao@intel.com>, Rahul Kumar <rahul1.kumar@intel.com>, nd
> <nd@arm.com>, Jose Marinho <Jose.Marinho@arm.com>
> *Subject: *Re: [edk2-devel] RFC: Adding support for ARM (RNDR etc.) to
> RngDxe
>
> Hi Sami,
>
> I was wondering if you're still collecting feedback on the design, or if
> you have a plan and schedule for the implementation?
>
> --
> Rebecca Cran
>
> On 1/15/21 7:51 PM, Sami Mujawar wrote:
> > Hi All,
> >
> > I have shared some initial thoughts on the RNG implementation updates
> at
>
https://nam06.safelinks.protection.outlook.com/?url=https%3A%2F%2Fedk2.groups.io%2Fg%2Fdevel%2Ffiles%2FDesigns%2F2021%2F0116%2FEDKII%2520-%2520Proposed%2520update%2520to%2520RNG%2520implementation.pdf&data=04%7C01%7Cbret.barkelew%40microsoft.com%7C676a9101f67845dbdc8908d908fa4cd1%7C72f988bf86f141af91ab2d7cd011db47%7C1%7C0%7C637550693569385394%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&sdata=Q8ka83ReO2aG8yTVrgpTAVxczJVjl2JBH3ksHo2%2BSHk%3D&reserved=0
> <https://nam06.safelinks.protection.outlook.com/?url=https%3A%2F%2Fedk2.groups.io%2Fg%2Fdevel%2Ffiles%2FDesigns%2F2021%2F0116%2FEDKII%2520-%2520Proposed%2520update%2520to%2520RNG%2520implementation.pdf&data=04%7C01%7Cbret.barkelew%40microsoft.com%7C676a9101f67845dbdc8908d908fa4cd1%7C72f988bf86f141af91ab2d7cd011db47%7C1%7C0%7C637550693569385394%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&sdata=Q8ka83ReO2aG8yTVrgpTAVxczJVjl2JBH3ksHo2%2BSHk%3D&reserved=0>
> >
> > Kindly let me know your feedback or if you have any queries.
> >
> > Regards,
> >
> > Sami Mujawar
> >
> > -----Original Message-----
> > From: devel@edk2.groups.io <devel@edk2.groups.io> On Behalf Of
> Rebecca Cran via groups.io
> > Sent: 14 January 2021 09:05 PM
> > To: Sami Mujawar <Sami.Mujawar@arm.com>; devel@edk2.groups.io; Samer
> El-Haj-Mahmoud <Samer.El-Haj-Mahmoud@arm.com>; Ard Biesheuvel
> <Ard.Biesheuvel@arm.com>; leif@nuviainc.com
> > Cc: rfc@edk2.groups.io; Jiewen Yao <jiewen.yao@intel.com>; Rahul
> Kumar <rahul1.kumar@intel.com>; nd <nd@arm.com>
> > Subject: Re: [edk2-devel] RFC: Adding support for ARM (RNDR etc.) to
> RngDxe
> >
> > On 12/10/20 4:26 AM, Sami Mujawar wrote:
> >
> >> 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 Sami,
> >
> > I don't see any further discussions on this. Have you made any progress
> > with sharing the design documents or scheduling a review?
> >
>