Issue #401 has been updated by Arthur Heymans.
Christian Walter wrote in #note-4:
Is this a problem within coreboot - or do we rather need to fix up EDKII ?
The problem is inside EDKII. Those reverts would create problems for other payloads and Linux would even complain about incoherent MTRR settings I think.
---------------------------------------- Bug #401: edk2 hangs indefiniately https://ticket.coreboot.org/issues/401#change-1044
* Author: Sean Rhodes * Status: New * Priority: Normal * Assignee: Arthur Heymans * Category: board support * Target version: none * Start date: 2022-07-08 * Affected versions: master * Affected hardware: Everything * Affected OS: Doesn't matter ---------------------------------------- Since CB:63555, edk2 will no longer boot and hangs indefiniately
Various forks disable MTRR programming in edk2 (such as https://github.com/MrChromebox/edk2/commit/d641ea6920737fd9b9a94210e9a2e7636...) but this shouldn't be done as it breaks spec.
Workarounds are to revert CB:64804, CB:63550, CB:64803 and CB:63555.
---Files-------------------------------- with_avph_patch.txt (65.8 KB) with_avph_patch_reverted.txt (64.6 KB) master.txt (91.9 KB) master_w_revert.txt (197 KB)