Initial implementation provides enumeration of the address ranges and BIOS assigned region IDs for each range. Signed-off-by: Tony Luck <tony.luck@xxxxxxxxx> --- Documentation/ABI/testing/sysfs-firmware-acpi | 16 ++++++++++++++++ 1 file changed, 16 insertions(+) diff --git a/Documentation/ABI/testing/sysfs-firmware-acpi b/Documentation/ABI/testing/sysfs-firmware-acpi index 5249ad5a96d9..a3369cf95546 100644 --- a/Documentation/ABI/testing/sysfs-firmware-acpi +++ b/Documentation/ABI/testing/sysfs-firmware-acpi @@ -248,3 +248,19 @@ Description: # cat ff_pwr_btn 7 enabled +What: /sys/firmware/acpi/memory_ranges/rangeX +Date: February 2025 +Contact: Tony Luck <tony.luck@xxxxxxxxx> +Description: + On systems with the ACPI MRRM table reports the + parameters for each range. + + base: Starting system physical address. + + length: Length of this range in bytes. + + local_region_id: ID associated with access by agents + local to this range of addresses. + + remote_region_id: ID associated with access by agents + non-local to this range of addresses. -- 2.48.1
