[coreboot - Bug #327] MBOX3, OperationRegion (OPRG, SystemMemory, ASLS, 0x2000) causes windows uefi tianocore BSOD ACPI_BIOS_ERROR

Issue #327 has been updated by Patrick Rudolph.


Please test https://review.coreboot.org/c/coreboot/+/81295

In case this doesn't fix the problem please attach to windows kernel using windbg and provide more details about the failing code.

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Bug #327: MBOX3, OperationRegion (OPRG, SystemMemory, ASLS, 0x2000) causes windows uefi tianocore BSOD ACPI_BIOS_ERROR
https://ticket.coreboot.org/issues/327#change-1792

* Author: xinhua wang
* Status: New
* Priority: Normal
* Start date: 2021-12-30
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https://review.coreboot.org/c/coreboot/+/27711/7/src/drivers/intel/gma/acpi/configure_brightness_levels.asl#28

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)


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