Commit d1099e22 authored by Michael Ellerman's avatar Michael Ellerman
Browse files

powerpc/pseries: Honour current SMT state when DLPAR onlining CPUs 



Integrate with the generic SMT support, so that when a CPU is DLPAR
onlined it is brought up with the correct SMT mode.

Signed-off-by: default avatarMichael Ellerman <mpe@ellerman.id.au>
Link: https://msgid.link/20230705145143.40545-11-ldufour@linux.ibm.com
parent 73c58e7e

arch/powerpc/platforms/pseries/hotplug-cpu.c

+8 −0
Original line number Diff line number Diff line
@@ -398,6 +398,14 @@ static int dlpar_online_cpu(struct device_node *dn) 
		for_each_present_cpu(cpu) {

			if (get_hard_smp_processor_id(cpu) != thread)

				continue;



			if (!topology_is_primary_thread(cpu)) {

				if (cpu_smt_control != CPU_SMT_ENABLED)

					break;

				if (!topology_smt_thread_allowed(cpu))

					break;

			}



			cpu_maps_update_done();

			find_and_update_cpu_nid(cpu);

			rc = device_online(get_cpu_device(cpu));