From: Alexei Fedorov <[email protected]> Juno's DSDT contains 2 PLPI packages in Clusters #0 and #1 and _OSC method reports support for platform coordinated mode only. According to the description of LevelID field in ACPI 6.2 Errata A Specification #8.4.4.3, "In a platform that only supports platform coordinated mode, this field must be 0."
This patch fixes the above issue by changing value of LevelID fields from 1 to 0. Contributed-under: TianoCore Contribution Agreement 1.1 Signed-off-by: Alexei Fedorov <[email protected]> --- All the changes can be reviewed at: https://github.com/AlexeiFedorov/edk2-platforms/tree/282_correct_levelid_v1 Notes: v1: - Change LevelID Value of PLPI package from 1 to 0. Platform/ARM/JunoPkg/AcpiTables/Dsdt.asl | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/Platform/ARM/JunoPkg/AcpiTables/Dsdt.asl b/Platform/ARM/JunoPkg/AcpiTables/Dsdt.asl index 07e32bae21f891461fde0183028e4c0f817e45a7..702b057757457fee40ddfc10e91d38c5dd7ca0b8 100644 --- a/Platform/ARM/JunoPkg/AcpiTables/Dsdt.asl +++ b/Platform/ARM/JunoPkg/AcpiTables/Dsdt.asl @@ -1,7 +1,7 @@ /** @file Differentiated System Description Table Fields (DSDT) - Copyright (c) 2014-2015, ARM Ltd. All rights reserved.<BR> + Copyright (c) 2014-2018, ARM Ltd. All rights reserved.<BR> This program and the accompanying materials are licensed and made available under the terms and conditions of the BSD License which accompanies this distribution. The full text of the license may be found at @@ -65,7 +65,7 @@ DefinitionBlock("DsdtTable.aml", "DSDT", 1, "ARMLTD", "ARM-JUNO", EFI_ACPI_ARM_O }) Name(PLPI, Package() { 0, // Version - 1, // Level Index + 0, // Level Index 2, // Count Package() { // WFI for CPU 1, // Min residency (uS) @@ -157,7 +157,7 @@ DefinitionBlock("DsdtTable.aml", "DSDT", 1, "ARMLTD", "ARM-JUNO", EFI_ACPI_ARM_O }) Name(PLPI, Package() { 0, // Version - 1, // Level Index + 0, // Level Index 2, // Count Package() { // WFI for CPU 1, // Min residency (uS) -- 'Guid(CE165669-3EF3-493F-B85D-6190EE5B9759)' _______________________________________________ edk2-devel mailing list [email protected] https://lists.01.org/mailman/listinfo/edk2-devel
