Unverified Commit 2e196c2f authored by openeuler-ci-bot's avatar openeuler-ci-bot Committed by Gitee
Browse files

!7416 cpu/SMT: Make SMT control more robust against enumeration failures 

Merge Pull Request from: @ci-robot 
 
PR sync from: Yang Yingliang <yangyingliang@huawei.com>
https://mailweb.openeuler.org/hyperkitty/list/kernel@openeuler.org/message/SDHX52QDFOCKPV3CJGIN4O3QLT5FX22B/ 
 
https://gitee.com/openeuler/kernel/issues/I9NZ3E 
 
Link:https://gitee.com/openeuler/kernel/pulls/7416

 

Reviewed-by: default avatarXie XiuQi <xiexiuqi@huawei.com>
Signed-off-by: default avatarJialin Zhang <zhangjialin11@huawei.com>
parents 90ab3fcc 7f3c44cd

kernel/cpu.c

+8 −0
Original line number Diff line number Diff line
@@ -432,6 +432,14 @@ static inline bool cpu_smt_allowed(unsigned int cpu) 
	if (cpu_smt_control == CPU_SMT_ENABLED)

		return true;



	/* All CPUs are bootable if controls are not configured */

	if (cpu_smt_control == CPU_SMT_NOT_IMPLEMENTED)

		return true;



	/* All CPUs are bootable if CPU is not SMT capable */

	if (cpu_smt_control == CPU_SMT_NOT_SUPPORTED)

		return true;



	if (topology_is_primary_thread(cpu))

		return true;