<html> <head> <meta http-equiv="Content-Type" content="text/html; charset=us-ascii"> </head> <body> <div dir="auto" style="direction: ltr; margin: 0px; padding: 0px; font-family: sans-serif; font-size: 11pt; color: black; text-align: left;"> There is also the TRNG FW API, which is an architected SMC firmware interface:<br> </div> <div dir="auto" style="direction: ltr; margin: 0px; padding: 0px; font-family: sans-serif; font-size: 11pt; color: black;"> <br> </div> <div dir="auto" style="direction: ltr; margin: 0px; padding: 0px; font-family: sans-serif; font-size: 11pt; color: black;"> <a href="https://developer.arm.com/documentation/den0098/latest/">https://developer.arm.com/documentation/den0098/latest/</a><br> <br> </div> <div id="id-482694c7-624b-40a0-8cea-88d6f35ba4f0" class="ms-outlook-mobile-reference-message"> <div style="font-family: sans-serif; font-size: 13.2pt; color: rgb(0, 0, 0);"><br> </div> <hr style="display:inline-block;width:98%" tabindex="-1"> <div id="divRplyFwdMsg"><strong>From:</strong> devel@edk2.groups.io <devel@edk2.groups.io> on behalf of Rebecca Cran via groups.io <rebecca=nuviainc.com@groups.io><br> <strong>Sent:</strong> Tuesday, December 8, 2020, 11:33 PM<br> <strong>To:</strong> devel@edk2.groups.io<br> <strong>Cc:</strong> rfc@edk2.groups.io; Jiewen Yao; Rahul Kumar<br> <strong>Subject:</strong> [edk2-devel] RFC: Adding support for ARM (RNDR etc.) to RngDxe<br> </div> <br> <meta name="Generator" content="Microsoft Exchange Server"> <style></style><font size="2"><span style="font-size:11pt;"> <div class="PlainText">Currently, RngDxe in SecurityPkg only supports Intel, with RdRand support.<br> <br> <br> This RFC is to start a discussion about adding support for ARM.<br> <br> <br> I have a Git branch with support for the optional ARMv8.5 RNDR <br> instruction at <a href="https://github.com/bcran/edk2/commits/bcran-rndr">https://github.com/bcran/edk2/commits/bcran-rndr</a> which <br> moves the existing Intel support into a Rand directory, and adds code to <br> support RNDR in a new AArch64 directory.<br> <br> There are other RNG implementations available for ARM, including <br> platform-specific approaches on Graviton <br> (<a href="https://lwn.net/Articles/790304/">https://lwn.net/Articles/790304/</a>) and other platforms, so a more <br> thorough rearchitecting/redesign may be desired.<br> <br> <br> -- <br> Rebecca Cran<br> <br> <br> <br> <br> <br> <br> <br> </div> </span></font><br> </div> 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. </body> </html> <div width="1" style="color:white;clear:both">_._,_._,_</div> <hr> Groups.io Links:<p> You receive all messages sent to this group. <p> <a target="_blank" href="https://edk2.groups.io/g/devel/message/68488">View/Reply Online (#68488)</a> | | <a target="_blank" href="https://groups.io/mt/78823009/1813853">Mute This Topic</a> | <a href="https://edk2.groups.io/g/devel/post">New Topic</a><br> <a href="https://edk2.groups.io/g/devel/editsub/1813853">Your Subscription</a> | <a href="mailto:devel+owner@edk2.groups.io">Contact Group Owner</a> | <a href="https://edk2.groups.io/g/devel/unsub">Unsubscribe</a> [edk2-devel-archive@redhat.com]<br> <div width="1" style="color:white;clear:both">_._,_._,_</div>