<html><head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8"> </head> <body> <p>Jeshua, <br> </p> <p>I did ask my team how we have incorporated IPMI boot features into BDS. There are two main points. <br> </p> <p>1. The BDS you see in edk2 is very rarely used as is for commercial products. In fact, most PC class systems and servers have a lot of customization in the BDS. <br> </p> <p>2. The BDS you see in edk2 has no concept of "generic boot options". IPMI basically says I want to boot some "generic" thing like HDD. Some platform code has to convert HDD into something real that the BDS/UEFI system can actually boot. For example in Project Mu we have a BDS with a concept of generic platform boot options. These boot options actually just boot a platform defined firmware application which then can interpret the "generic" request and runs a platform defined algorithm for finding something bootable. Using the HDD example, it would connect the storage drivers (say NVME Dxe driver) and then enumerate each of storage device found in a defined order and look for a efi/boot{arch} file. This would then allow the IPMI defined generic options to actually convert into a boot path that BDS could use. <br> </p> <p><br> </p> <p>Regarding the handling of BootNext specifically this is modified as part of the larger overhaul to the BDS and its relevant libraries/APIs. <br> </p> <p>My expectation is this doesn't really help you with your current problem but might give some context as to why this functionality isn't integrated in the edk2 BDS and you haven't got a lot of feedback from the mailing list. If interested I can provide more info on our BDS in Project Mu and reference platform bds implementation used here <a href="https://github.com/microsoft/mu_tiano_platforms">microsoft/mu_tiano_platforms: Project Mu Virtual Platform Firmware (github.com)</a></p> <p>Thanks</p> <p>Sean</p> <p><br> </p> <p><br> </p> <p><br> </p> <div class="moz-cite-prefix">On 1/10/2023 7:53 AM, Jeshua Smith via groups.io wrote:<br> </div> <blockquote type="cite" cite="mid:DM6PR12MB33715944E3E0E1C3195E7E4CDBFF9@DM6PR12MB3371.namprd12.prod.outlook.com"> <meta name="Generator" content="Microsoft Word 15 (filtered medium)">  <style>@font-face {font-family:Wingdings; panose-1:5 0 0 0 0 0 0 0 0 0;}@font-face {font-family:"Cambria Math"; panose-1:2 4 5 3 5 4 6 3 2 4;}@font-face {font-family:Calibri; panose-1:2 15 5 2 2 2 4 3 2 4;}@font-face {font-family:Verdana; panose-1:2 11 6 4 3 5 4 4 2 4;}p.MsoNormal, li.MsoNormal, div.MsoNormal {margin:0in; font-size:11.0pt; font-family:"Calibri",sans-serif;}a:link, span.MsoHyperlink {mso-style-priority:99; color:#0563C1; text-decoration:underline;}p.MsoListParagraph, li.MsoListParagraph, div.MsoListParagraph {mso-style-priority:34; margin-top:0in; margin-right:0in; margin-bottom:0in; margin-left:.5in; font-size:11.0pt; font-family:"Calibri",sans-serif;}span.EmailStyle20 {mso-style-type:personal-reply; font-family:"Calibri",sans-serif; color:windowtext;}.MsoChpDefault {mso-style-type:export-only; font-size:10.0pt;}div.WordSection1 {page:WordSection1;}ol {margin-bottom:0in;}ul {margin-bottom:0in;}</style> <div class="WordSection1"> <p class="MsoNormal">Any input on this?<o:p></o:p></p> <p class="MsoNormal"><o:p> </o:p></p> <p class="MsoNormal">It seems that the current behavior isn’t ideal:<o:p></o:p></p> <ul style="margin-top:0in" type="disc"> <li class="MsoListParagraph" style="margin-left:0in;mso-list:l0 level1 lfo1">If BootNext is already set when PlatformBootManagerLib APIs are called, a new BootNext value from the PlatformBootManagerLib code will be <b>ignored</b> (because the original value is cached before the APIs have a chance to set it) and then deleted (when the cached value is consumed after the APIs have been called)<o:p></o:p></li> <li class="MsoListParagraph" style="margin-left:0in;mso-list:l0 level1 lfo1">If BootNext is not already set, then the current boot will not be affected by the BootNext value that PlatformBootManagerLib API code sets (because there was no value when the value was cached), but the <b>subsequent</b> boot will boot with the BootNext value set by the APIs during the current boot (because not having a cached value skips the deletion of BootNext).<o:p></o:p></li> </ul> <p class="MsoNormal"><o:p> </o:p></p> <p class="MsoNormal">To me this seems inconsistent and confusing.<o:p></o:p></p> <p class="MsoNormal"><o:p> </o:p></p> <div> <div style="border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0in 0in 0in"> <p class="MsoNormal"><b>From:</b> <a class="moz-txt-link-abbreviated" href="mailto:devel@edk2.groups.io">devel@edk2.groups.io</a> <a class="moz-txt-link-rfc2396E" href="mailto:devel@edk2.groups.io"><devel@edk2.groups.io></a> <b> On Behalf Of </b>Jeshua Smith via groups.io<br> <b>Sent:</b> Tuesday, January 3, 2023 11:32 AM<br> <b>To:</b> <a class="moz-txt-link-abbreviated" href="mailto:devel@edk2.groups.io">devel@edk2.groups.io</a><br> <b>Cc:</b> Zhichao Gao <a class="moz-txt-link-rfc2396E" href="mailto:zhichao.gao@intel.com"><zhichao.gao@intel.com></a>; Ray Ni <a class="moz-txt-link-rfc2396E" href="mailto:ray.ni@intel.com"><ray.ni@intel.com></a><br> <b>Subject:</b> [edk2-devel] How to select boot device for current boot in response to IPMI System Boot Options commands?<o:p></o:p></p> </div> </div> <p class="MsoNormal"><o:p> </o:p></p> <table class="MsoNormalTable" style="background:#FFEB9C" cellpadding="0" border="1"> <tbody> <tr> <td style="padding:.75pt .75pt .75pt .75pt"> <p class="MsoNormal"><b><span style="font-size:7.5pt;font-family:"Verdana",sans-serif;color:black">External email: Use caution opening links or attachments</span></b><span style="font-size:7.5pt;font-family:"Verdana",sans-serif;color:black"> </span><o:p></o:p></p> </td> </tr> </tbody> </table> <p class="MsoNormal"><o:p> </o:p></p> <div> <p class="MsoNormal">Happy New Year!<o:p></o:p></p> <p class="MsoNormal"><o:p> </o:p></p> <p class="MsoNormal">I’m trying to figure out the proper place to add code to allow the EFI boot code to respond to the IPMI System Boot Options request to boot a device on the current boot. My initial thought was to change BootNext in the PlatformBootManagerLib APIs, but based on the comment <a href="https://www.mail-archive.com/edk2-devel@lists.01.org/msg30378.html" moz-do-not-send="true" class="moz-txt-link-freetext"> https://www.mail-archive.com/edk2-devel@lists.01.org/msg30378.html</a> it looks like that is *<b>intentionally</b>* unsupported. Does anyone know why we want to avoid PlatformBootManagerLib hooks from being able to set BootNext to control what gets booted on the current boot? Is there an intended alternative way to support the IPMI System Boot Options Command request to use a boot device for the current boot?<o:p></o:p></p> <p class="MsoNormal"><o:p> </o:p></p> <p class="MsoNormal">Thanks,<o:p></o:p></p> <p class="MsoNormal"><o:p> </o:p></p> <p class="MsoNormal">Jeshua Smith<o:p></o:p></p> <div> </div> </div> </div> </blockquote> </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/98255">View/Reply Online (#98255)</a> | | <a target="_blank" href="https://groups.io/mt/96034184/1813853">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>