A few weeks ago the Tianocore project added a whitepaper on UEFI 2.5’s HTTP Boot:
If you were looking for instructions on how to setup Tianocore’s HTTP boot feature, on Windows-based systems, this document is for you!
I could be wrong, but I don’t think the TLS API has been added to Tianocore yet, so there is no HTTPS, only HTTP.
(Looking at the above SourceForge URL, it appears the Packaging Tool document was also recently updated, but not sure of the details.)
I’ve been wondering about UEFI 2.5’s HTTP Boot support since the Tianocore checkins started, a few months ago:
Intel announced more on this today, preparing for their upcoming IDF presentations on the topic:
UEFI 2.5 also added DNS support to complete the network stack needed for UEFI HTTP boot. I’ve yet to see any vendor except HP announce a product yet, perhaps IDF will unveil new products from other vendors.
One new feature in UEFI 2.5 is HTTP Boot, an alternative to PXE-based TFTP booting. I’ve made 2 blog posts on it so far:
Right now, HP supports it, and Intel is adding an implementation to Tianocore. In the last day, it appears that Intel’s beginning to add their implementation to the EDK-II trunk. In the NetworkPkg, there are a few new directories, apparently mostly related to a new HttpBootDxe driver. For more information, look at the edk2-devel mailing list archives, or the EDK-II trunk in the NetworkPkg.
Earlier, I made this blog post on UEFI 2.5’s new HTTP Boot feature. At that time, I was unaware of some details, like if this feature will be implemented in TianoCore, or only in commercial products. HP gave a talk at the Spring UEFI Forum on UEFI 2.5 HTTP Boot (to replace PXE) and DMTF Redfish (to replace IPMI), so I presume some new HP products will have these new features soon, if not already. On the EFI development list, I asked a question about Tianocore and vendor support of UEFI HTTP boot, as well as DMTF Redfish, and got 2 replies, one from Intel and one from HP.
Ye Ting of Intel replied and said:
“Intel is working on implementation of UEFI 2.5 HTTP boot support.”
Samer El-Haj-Mahmoud of HP also replied, and said:
“Both HTTP Boot and Redfish are very new standards. HTTP Boot got standardized as part of UEFI 2.5 in March. Redfish is still not even 1.0 (last published spec is 0.96.0a, with a target 1.0 spec sometime this month according to DMTF). It is expected that implementation will take some time to catch up to the spec. At the same time, PXE and IPMI have been there for quite some time, are implemented across the board on servers (and many clients), and are already in wide use. I do not expect them to go away anytime soon. But the goal is to switch over to HTTP and Redfish/REST over time, especially as they enable new use cases and capabilities that were not possible (or easy to do) before. The first step though is to get the specs implemented. As Ting explained, Intel is working on UEFI 2.5 HTTP Boot implementation (that I expect will show up in EDK2. I see the header files submitted already). DMTF is also working on a Redfish mockup/simulator that can be used to exercise clients. HP ProLiant Gen9 servers already support proprietary flavors of both HTTP Boot (or “Boot from URL”) and Redfish (or the “HP RESTful API”). I do not know of any other servers that implement such technologies at this time.”
So, it sounds like HP is the only vendor that supports UEFI HTTP Boot at the moment, and Intel is working on an implementation. If Intel’s implementation is part of TianoCore, other vendors may use it.
I’m looking forward to a TianoCore implementation, as well as DMTF’s Redfish simulator.
Thanks to Ye Ting and Samer El-Haj-Mahmoud for the answers!
The PDFs of the presentations from last months’ UEFI Forum plugfest have been uploaded to uefi.org.
(scroll about half-way through the page, after the Youtube videos…)
* System Prep Applications – Powerful New Feature in UEFI 2.5 – Kevin Davis (Insyde Software)
* Filling UEFI/FW Gaps in the Cloud – Mallik Bulusu (Microsoft) and Vincent Zimmer (Intel)
* PreBoot Provisioning Solutions with UEFI – Zachary Bobroff (AMI)
* An Overview of ACPICA Userspace Tools – David Box (Intel)
* UEFI Firmware – Securing SMM – Dick Wilkins (Phoenix Technologies)
* Overview of Windows 10 Requirements for TPM, HVCI and SecureBoot – Gabe Stocco, Scott Anderson and Suhas Manangi (Microsoft)
* Porting a PCI Driver to ARM AArch64 Platforms – Olivier Martin (ARM)
* Firmware in the Data Center: Goodbye PXE and IPMI. Welcome HTTP Boot and Redfish! – Samer El-Haj-Mahmoud (Hewlett Packard)
* A Common Platforms Tree – Leif Lindholm (Linaro)
This’ll be a very short blog, as I’m busy reading 9 new PDFs… 🙂 I’ll do blogs on some these specific presentations in the coming days.