Issue #327 has been updated by Mat Phillips.
Paul Menzel wrote in #note-9:
@Mat, on what board did you test?
Thinkpad x230. I7 CPU (doubt that's relevant though) The dmesg file attached to this ticket is from that laptop.
---------------------------------------- Bug #327: MBOX3, OperationRegion (OPRG, SystemMemory, ASLS, 0x2000) causes windows uefi tianocore BSOD ACPI_BIOS_ERROR https://ticket.coreboot.org/issues/327#change-980
* Author: xinhua wang * Status: New * Priority: Normal * Start date: 2021-12-30 ---------------------------------------- https://review.coreboot.org/c/coreboot/+/27711/7/src/drivers/intel/gma/acpi/...
this line .. OperationRegion (OPRG, SystemMemory, ASLS, 0x2000) the 0x2000 will cause BSOD ACPI_BIOS_ERROR when booting installer, os, etc
When set to 0x1000 windows UEFI tianocore mode boots fine
---Files-------------------------------- dmesg.txt (76.9 KB) results.log (204 KB)