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


Samer El-Haj-Mahmoud
 

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 <devel@edk2.groups.io> on behalf of Rebecca Cran via groups.io <rebecca@...>
Sent: Tuesday, December 8, 2020, 11:33 PM
To: devel@edk2.groups.io
Cc: 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.


Sami Mujawar <sami.mujawar@...>
 

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@...>; Rahul Kumar <rahul1.kumar@...>
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@...<mailto:rebecca@...>>
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.


Leif Lindholm
 

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@...>; Rahul Kumar <rahul1.kumar@...>
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@...<mailto:rebecca@...>>
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.


Yao, Jiewen
 

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@...>
Cc: devel@edk2.groups.io; Samer El-Haj-Mahmoud <Samer.El-Haj-
Mahmoud@...>; Ard Biesheuvel <Ard.Biesheuvel@...>;
rebecca@...; rfc@edk2.groups.io; Yao, Jiewen
<jiewen.yao@...>; Kumar, Rahul1 <rahul1.kumar@...>; nd
<nd@...>
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@...>; Rahul Kumar
<rahul1.kumar@...>
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@...<mailto:rebecca@...
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.



Rebecca Cran <rebecca@...>
 

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?

--
Rebecca Cran


Sami Mujawar <sami.mujawar@...>
 

Hi All,

I have shared some initial thoughts on the RNG implementation updates at https://edk2.groups.io/g/devel/files/Designs/2021/0116/EDKII%20-%20Proposed%20update%20to%20RNG%20implementation.pdf

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@...>; devel@edk2.groups.io; Samer El-Haj-Mahmoud <Samer.El-Haj-Mahmoud@...>; Ard Biesheuvel <Ard.Biesheuvel@...>; leif@...
Cc: rfc@edk2.groups.io; Jiewen Yao <jiewen.yao@...>; Rahul Kumar <rahul1.kumar@...>; nd <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?

--
Rebecca Cran


Rebecca Cran <rebecca@...>
 

On 1/15/21 7:51 PM, Sami Mujawar wrote:

I have shared some initial thoughts on the RNG implementation updates at https://edk2.groups.io/g/devel/files/Designs/2021/0116/EDKII%20-%20Proposed%20update%20to%20RNG%20implementation.pdf
Kindly let me know your feedback or if you have any queries.
The ARMv8.5 RNDRRS instruction appears to be missing from the diagram on page 11 - it has RngLib|RNDR, which is listed under PRNG, but RNDRRS returns a true random number. From the Arm ARM:

"Returns a 64-bit random number which is reseeded from the True
Random Number source immediately before the read of the random number."

--
Rebecca Cran


Ard Biesheuvel <ardb@...>
 

On Wed, 10 Feb 2021 at 23:49, Rebecca Cran <rebecca@...> wrote:

On 1/15/21 7:51 PM, Sami Mujawar wrote:

I have shared some initial thoughts on the RNG implementation updates at https://edk2.groups.io/g/devel/files/Designs/2021/0116/EDKII%20-%20Proposed%20update%20to%20RNG%20implementation.pdf

Kindly let me know your feedback or if you have any queries.
The ARMv8.5 RNDRRS instruction appears to be missing from the diagram on
page 11 - it has RngLib|RNDR, which is listed under PRNG, but RNDRRS
returns a true random number. From the Arm ARM:

"Returns a 64-bit random number which is reseeded from the True
Random Number source immediately before the read of the random number."
This is an unfortunate oversight in the architecture, but RNDRRS most
certainly does not return a true random number.

RNDR and RNDRRS both return the output of a DRBG (pseudo RNG), and the
only difference is the reseed rate: RNDRRS triggers a reseed on every
invocation, whereas RNDR triggers a reseed at an IMPDEF rate.


Rebecca Cran <rebecca@...>
 

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://edk2.groups.io/g/devel/files/Designs/2021/0116/EDKII%20-%20Proposed%20update%20to%20RNG%20implementation.pdf
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@...>; devel@edk2.groups.io; Samer El-Haj-Mahmoud <Samer.El-Haj-Mahmoud@...>; Ard Biesheuvel <Ard.Biesheuvel@...>; leif@...
Cc: rfc@edk2.groups.io; Jiewen Yao <jiewen.yao@...>; Rahul Kumar <rahul1.kumar@...>; nd <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?


Sami Mujawar <sami.mujawar@...>
 

Hi Rebecca,

I have been working on the following modules (See slide 11 in “EDKII - Proposed update to RNG implementation.pdf<https://edk2.groups.io/g/devel/files/Designs/2021/0116/EDKII%20-%20Proposed%20update%20to%20RNG%20implementation.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 <rebecca@...>
Date: Tuesday, 20 April 2021 at 21:04
To: Sami Mujawar <Sami.Mujawar@...>, devel@edk2.groups.io <devel@edk2.groups.io>, Samer El-Haj-Mahmoud <Samer.El-Haj-Mahmoud@...>, Ard Biesheuvel <Ard.Biesheuvel@...>, leif@... <leif@...>
Cc: rfc@edk2.groups.io <rfc@edk2.groups.io>, Jiewen Yao <jiewen.yao@...>, Rahul Kumar <rahul1.kumar@...>, nd <nd@...>, Jose Marinho <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://edk2.groups.io/g/devel/files/Designs/2021/0116/EDKII%20-%20Proposed%20update%20to%20RNG%20implementation.pdf

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@...>; devel@edk2.groups.io; Samer El-Haj-Mahmoud <Samer.El-Haj-Mahmoud@...>; Ard Biesheuvel <Ard.Biesheuvel@...>; leif@...
Cc: rfc@edk2.groups.io; Jiewen Yao <jiewen.yao@...>; Rahul Kumar <rahul1.kumar@...>; nd <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?


Rebecca Cran <rebecca@...>
 

Thanks. Yes, I'll work on implementing the RngLib|RNDR part.
I'll be using Qemu's sbsa-ref platform for testing. I'll also look into using the FVP_Base_AEMv8A-AEMv8A too.

--
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://edk2.groups.io/g/devel/files/Designs/2021/0116/EDKII%20-%20Proposed%20update%20to%20RNG%20implementation.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 <rebecca@...>
*Date: *Tuesday, 20 April 2021 at 21:04
*To: *Sami Mujawar <Sami.Mujawar@...>, devel@edk2.groups.io <devel@edk2.groups.io>, Samer El-Haj-Mahmoud <Samer.El-Haj-Mahmoud@...>, Ard Biesheuvel <Ard.Biesheuvel@...>, leif@... <leif@...>
*Cc: *rfc@edk2.groups.io <rfc@edk2.groups.io>, Jiewen Yao <jiewen.yao@...>, Rahul Kumar <rahul1.kumar@...>, nd <nd@...>, Jose Marinho <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://edk2.groups.io/g/devel/files/Designs/2021/0116/EDKII%20-%20Proposed%20update%20to%20RNG%20implementation.pdf <https://edk2.groups.io/g/devel/files/Designs/2021/0116/EDKII%20-%20Proposed%20update%20to%20RNG%20implementation.pdf>
>
> 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@...>; devel@edk2.groups.io; Samer
El-Haj-Mahmoud <Samer.El-Haj-Mahmoud@...>; Ard Biesheuvel <Ard.Biesheuvel@...>; leif@...
> Cc: rfc@edk2.groups.io; Jiewen Yao <jiewen.yao@...>; Rahul
Kumar <rahul1.kumar@...>; nd <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?
>


Rebecca Cran <rebecca@...>
 

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://edk2.groups.io/g/devel/files/Designs/2021/0116/EDKII%20-%20Proposed%20update%20to%20RNG%20implementation.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 <rebecca@...>
*Date: *Tuesday, 20 April 2021 at 21:04
*To: *Sami Mujawar <Sami.Mujawar@...>, devel@edk2.groups.io <devel@edk2.groups.io>, Samer El-Haj-Mahmoud <Samer.El-Haj-Mahmoud@...>, Ard Biesheuvel <Ard.Biesheuvel@...>, leif@... <leif@...>
*Cc: *rfc@edk2.groups.io <rfc@edk2.groups.io>, Jiewen Yao <jiewen.yao@...>, Rahul Kumar <rahul1.kumar@...>, nd <nd@...>, Jose Marinho <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://edk2.groups.io/g/devel/files/Designs/2021/0116/EDKII%20-%20Proposed%20update%20to%20RNG%20implementation.pdf <https://edk2.groups.io/g/devel/files/Designs/2021/0116/EDKII%20-%20Proposed%20update%20to%20RNG%20implementation.pdf>
>
> 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@...>; devel@edk2.groups.io; Samer
El-Haj-Mahmoud <Samer.El-Haj-Mahmoud@...>; Ard Biesheuvel <Ard.Biesheuvel@...>; leif@...
> Cc: rfc@edk2.groups.io; Jiewen Yao <jiewen.yao@...>; Rahul
Kumar <rahul1.kumar@...>; nd <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?
>