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-rw-r--r--src/cpu/intel/speedstep/acpi.c4
-rw-r--r--src/cpu/intel/speedstep/acpi/cpu.asl1
2 files changed, 5 insertions, 0 deletions
diff --git a/src/cpu/intel/speedstep/acpi.c b/src/cpu/intel/speedstep/acpi.c
index 2beb89061c..f1c5b9966b 100644
--- a/src/cpu/intel/speedstep/acpi.c
+++ b/src/cpu/intel/speedstep/acpi.c
@@ -133,4 +133,8 @@ void generate_cpu_entries(const struct device *device)
acpigen_write_processor_package("PPKG", 0, cores_per_package);
acpigen_write_processor_cnot(cores_per_package);
+
+ acpigen_write_scope("\\");
+ acpigen_write_name_integer("MPEN", numcpus > 1);
+ acpigen_pop_len();
}
diff --git a/src/cpu/intel/speedstep/acpi/cpu.asl b/src/cpu/intel/speedstep/acpi/cpu.asl
index 417ee115e2..770acdfaeb 100644
--- a/src/cpu/intel/speedstep/acpi/cpu.asl
+++ b/src/cpu/intel/speedstep/acpi/cpu.asl
@@ -5,6 +5,7 @@ External (\_SB.CNOT, MethodObj)
External (\_SB_.CP00, DeviceObj)
External (\_SB_.CP00._PPC)
External (\_SB_.CP01._PPC)
+External (\MPEN, IntObj)
Method (PNOT)
{