Hi Wim, Yes Coffee Lake also support Capsule update mechanism out of the box. Please refer to this page https://slimbootloader.github.io/how-tos/update-firmware.html for information on the new capsule generation tool. We updated the tool to support multiple firmware images in single capsule. Coffee Lake capsule update mechanism support CSME update as well. Coffee Lake firmware update can be triggered by writing 0x5A to CMOS offset location 0x40 . Let me know if you have more questions. Thank you, Raghava From: Sbl-devel [mailto:sbl-devel-bounces@lists.01.org] On Behalf Of Wim Vervoorn Sent: Wednesday, August 14, 2019 5:08 AM To: sbl-devel(a)lists.01.org Subject: [Sbl-devel] Flash support for CoffeeLake Hello, For ApolloLake SBL supports the Capsule update mechanism out of the box. Is this the case for CoffeeLake as well? I couldn't find a clear reference in the documentation. If so, will any additional effort be required to make this work on a specific board? I assume the changes only involve the mechanism to trigger the update process is this right? Best Regards, Wim Vervoorn

Hello Wim, Your understanding is correct, please move variables region to NON VOLATILE and they will be preserved during firmware update. Thank you, Raghava From: Wim Vervoorn [mailto:wvervoorn@eltan.com] Sent: Thursday, August 15, 2019 12:41 AM To: Gudla, Raghava <raghava.gudla(a)intel.com&gt;; sbl-devel(a)lists.01.org Subject: RE: Flash support for CoffeeLake Hello Raghava, Thanks for the information. It is good to know that this is tested and working so I don't have to worry about another solution. I have one question left. I will be using a Slim Bootloader combined with a UEFI payload and I have UEFI variables. Is the correct way to make sure the variables are preserved to move them from the NON REDUNDANT area to the NON VOLATILE area? Or will I run into issues if I do this? Best Regards, Wim Vervoorn Eltan B.V. Ambachtstraat 23 5481 SM Schijndel The Netherlands T : +31-(0)73-594 46 64 E : wvervoorn@eltan.com<mailto:wvervoorn@eltan.com> W : http://www.eltan.com<http://www.eltan.com/> "THIS MESSAGE CONTAINS CONFIDENTIAL INFORMATION. UNLESS YOU ARE THE INTENDED RECIPIENT OF THIS MESSAGE, ANY USE OF THIS MESSAGE IS STRICTLY PROHIBITED. IF YOU HAVE RECEIVED THIS MESSAGE IN ERROR, PLEASE IMMEDIATELY NOTIFY THE SENDER BY TELEPHONE +31-(0)73-5944664 OR REPLY EMAIL, AND IMMEDIATELY DELETE THIS MESSAGE AND ALL COPIES." From: Gudla, Raghava [mailto:raghava.gudla@intel.com] Sent: Wednesday, August 14, 2019 7:27 PM To: Wim Vervoorn <wvervoorn@eltan.com<mailto:wvervoorn@eltan.com>>; sbl-devel@lists.01.org<mailto:sbl-devel@lists.01.org> Subject: RE: Flash support for CoffeeLake Hi Wim, Yes Coffee Lake also support Capsule update mechanism out of the box. Please refer to this page https://slimbootloader.github.io/how-tos/update-firmware.html for information on the new capsule generation tool. We updated the tool to support multiple firmware images in single capsule. Coffee Lake capsule update mechanism support CSME update as well. Coffee Lake firmware update can be triggered by writing 0x5A to CMOS offset location 0x40 . Let me know if you have more questions. Thank you, Raghava From: Sbl-devel [mailto:sbl-devel-bounces@lists.01.org] On Behalf Of Wim Vervoorn Sent: Wednesday, August 14, 2019 5:08 AM To: sbl-devel@lists.01.org<mailto:sbl-devel@lists.01.org> Subject: [Sbl-devel] Flash support for CoffeeLake Hello, For ApolloLake SBL supports the Capsule update mechanism out of the box. Is this the case for CoffeeLake as well? I couldn't find a clear reference in the documentation. If so, will any additional effort be required to make this work on a specific board? I assume the changes only involve the mechanism to trigger the update process is this right? Best Regards, Wim Vervoorn