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Diffstat (limited to 'Documentation/acpi')
| -rw-r--r-- | Documentation/acpi/index.md | 3 | ||||
| -rw-r--r-- | Documentation/acpi/windows.md | 9 |
2 files changed, 12 insertions, 0 deletions
diff --git a/Documentation/acpi/index.md b/Documentation/acpi/index.md index 0009837fcb..f9ae425760 100644 --- a/Documentation/acpi/index.md +++ b/Documentation/acpi/index.md @@ -11,6 +11,9 @@ upwards. - [GPIO toggling in ACPI AML](gpio.md) +## Windows-specific ACPI documentation + +- [Windows-specific documentation](windows.md) ## ACPI specification - Useful links diff --git a/Documentation/acpi/windows.md b/Documentation/acpi/windows.md new file mode 100644 index 0000000000..5745df8e8a --- /dev/null +++ b/Documentation/acpi/windows.md @@ -0,0 +1,9 @@ +# Testing ACPI changes under Windows + +When testing ACPI changes in coreboot against Windows 8 or newer, beware that +during a normal boot after a clean shutdown, Windows will use the fast startup +mechanism which results in it not evaluating the changed ACPI code but instead +using some cached version which won't include the changes that were supposed to +be tested. In order for Windows to actually use the new ACPI tables, either +disable the fast startup or just tell Windows to do a reboot which will make it +read and use the ACPI tables in memory instead of an outdated cached version. |