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 Date: Monday, 26 April 2021 at 22:45 To: devel@edk2.groups.io , rebecca@nuviainc.com , Sami Mujawar , Samer El-Haj-Mahmoud , Ard Biesheuvel , leif@nuviainc.com Cc: rfc@edk2.groups.io , Yao, Jiewen , Rahul Kumar , nd , Jose Marinho 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 > ”): > > 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 > *Date: *Tuesday, 20 April 2021 at 21:04 > *To: *Sami Mujawar , devel@edk2.groups.io > , Samer El-Haj-Mahmoud > , Ard Biesheuvel , > leif@nuviainc.com > *Cc: *rfc@edk2.groups.io , Jiewen Yao > , Rahul Kumar , nd > , Jose Marinho > *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 > > > > > Kindly let me know your feedback or if you have any queries. > > > > Regards, > > > > Sami Mujawar > > > > -----Original Message----- > > From: devel@edk2.groups.io On Behalf Of > Rebecca Cran via groups.io > > Sent: 14 January 2021 09:05 PM > > To: Sami Mujawar ; devel@edk2.groups.io; Samer > El-Haj-Mahmoud ; Ard Biesheuvel > ; leif@nuviainc.com > > Cc: rfc@edk2.groups.io; Jiewen Yao ; Rahul > Kumar ; nd > > 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? > > >