coreboot January 2024

coreboot@coreboot.org

19 participants
23 discussions

How to build HOB
by Hamit Can Karaca 04 Jan '24

04 Jan '24

Hello I am new with coreboot and I am trying to understand base functionalities. Before coreboot I was using SBL and in SBL we could pass data to payload by building HOBs. I searched the coreboot code to see if there is a BuildHOB function but I couldn't find it. Is there a BuildHOB function in coreboot or does it have a different function which could pass data to payload. (I am using EDK2 as payload) Thanks for the answers.

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Custom Coreboot
by Iu Che 03 Jan '24

03 Jan '24

Hello, I want to ask, is it possible to order coreboot porting from you to any of these laptop models? Lenovo ThinkPad X1 Carbon Gen 5, i7-7600U, Intel HD Graphics 620 Lenovo ThinkPad X1 Carbon Gen 6, i7-8650U, Intel HD Graphics 620 Lenovo ThinkPad X1 Carbon Gen 7, i5-8265U, Intel HD Graphics 620 Lenovo ThinkPad X1 Carbon Gen 8, i5-8350U, Intel HD Graphics 620 Lenovo ThinkPad X1 Carbon Gen 10, i7-1165G7, Iris Xe Graphics Lenovo ThinkPad X1 Carbon Gen 10, i5-1240P, Iris Xe Graphics Lenovo ThinkPad X1 Carbon Gen 11, i7-1360P, Iris Xe Graphics Lenovo ThinkPad T14p Gen 1, i9-13900H, Intel Iris Xe Lenovo ThinkPad T16 Gen 1, i7-1265U, Iris Xe Graphics Lenovo ThinkPad T16 Gen 2, i7-1360P, GeForce MX550 4G Lenovo Legion 5 Pro, i9-13900HX / RTX 4060 Lenovo Legion 7 Pro, i7-13700HX / RTX 4080 Lenovo Legion 7 Pro, i9-13900HX / RTX 4080 Lenovo Legion 7 Pro, i9-13900HX / RTX 4090 If this is possible, how much would such a service cost? The service of physical firmware is not needed, I can do it myself. Thank you!

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[coreboot - Bug #121] T520: Hangs in OS
by Patrick Rudolph 01 Jan '24

01 Jan '24

Issue #121 has been updated by Patrick Rudolph. It looks like returning `PDM_APD_PPD` in get_power_down_mode() also fixes the issue. It matches the previous discoveries that the problem only appears when the package is in higher C-states. get_power_down_mode() seems to be only used when the DRAM is idle/ the package is in high C-states. ---------------------------------------- Bug #121: T520: Hangs in OS https://ticket.coreboot.org/issues/121#change-1726 * Author: Firstname Lastname * Status: In Progress * Priority: Normal * Category: chipset configuration * Start date: 2017-06-09 * Affected hardware: SNB, IVY * Affected OS: - ---------------------------------------- I have been running coreboot since 2017.04.15 and have experienced hangs ever since then. It was suggested by folk on the IRC that I run memtest to check for incorrect raminit causing errors, however I have run memtest for 12 hours straight with no errors. Due to the ambiguous nature of the hangs (immediate freeze with no warning signs, audio gets stuck repeating the last 50ms or so of noise, not sure what this effect is called) I don't have much useful information other than the .config and dmesg. However one thing I can say with high confidence is that the hangs occur significantly more frequently in Linux (*buntu distros) than Windows 10. Within an hour of launching Linux a hang is likely, whereas Windows typically runs for many hours before a hang occurs. I considered this an insignificant anecdotal anomaly at first but over the course of the nearly 2 months I have been running coreboot it seems to be a solid trend. The hangs occur anywhere, typically during mere desktop usage or basic web browsing. Additionally there is another form of hang I experience where the screen goes black except for some sort of graphical corruption down the left side (http://i.imgur.com/4zWrlpX.jpg), whether this is related to the more common total freeze hangs I don't know but I figured I should include it nonetheless. These hangs only occur about 1:20 compared to the regular hangs. ---Files-------------------------------- config (20.7 KB) dmesg.txt (57.3 KB) cbmem-raminit.txt (62 KB) lspci.txt (29.6 KB) cpuinfo.txt (3.94 KB) defconfig (1023 Bytes) defconfig (699 Bytes) -- You have received this notification because you have either subscribed to it, or are involved in it. To change your notification preferences, please click here: https://ticket.coreboot.org/my/account

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coreboot January 2024